Saturday, May 26, 2018

Propolis Helps Treat Inflammation of the Eye

Propolis modulates NOS2/arginase-1 pathway in tropomyosin-induced experimental autoimmune uveitis

Inflammopharmacology

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In this study, we evaluated the preventive and curative effects of ethanolic extract of Propolis (EEP) during α-Tropomyosin-induced uveitis in an experimental model using Wistar rats, through the regulation of inducible nitric oxide synthase (NOS2) and arginase-1.

In this context, rats received daily injection of EEP (100 mg/kg) for 5 days prior to immunization or for 9 days commencing 5 days post immunization with α-Tropomyosin extract, then were sacrificed at day 14. Histological examination, NOS2, arginase-1, and nuclear factor-κB (NF-κB) expression were evaluated in the retinas. Plasmatic production of nitric oxide (NO), urea, IL-4, and TNF-α was assessed.

We have found that treatment with EEP substantially reduced the retinal histological damages induced by α-Tropomyosin. In the same context, a significant decrease of NO and TNF-α levels was noticed. Interestingly, EEP down-modulated NOS2 and NF-κB expression in retina. Also, an increase in urea and IL-4 levels was concomitant to an up-modulation of arginase-1 expression.

Hence, it appears that EEP attenuated retinal damages through the induction of Th2 response and the inhibition of NF-κB/NOS2 pathway.

Friday, May 25, 2018

Brazilian Stingless Bee Propolis Disturbs Bacterial Cell Membrane

Chemical characterization, antioxidant and antimicrobial activity of propolis obtained from Melipona quadrifasciata quadrifasciata and Tetragonisca angustula stingless bees

Braz J Med Biol Res. 2018;51(6):e7118

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In this study, we investigated the chemical composition, and antioxidant and antibacterial properties of ethanolic extracts of propolis (EEP) from Melipona quadrifasciata quadrifasciata and Tetragonisca angustula.

Chemical composition of EEP was determined by colorimetry and chromatographic (HPLC-DAD and UPLC-Q/TOF-MS/MS) analysis. Antimicrobial activity of EEP was evaluated against gram-positive (S. aureus, methicillin-resistant S. aureus, E. faecalis) and gram-negative (E. coli and K. pneumoniae) bacteria by the minimal inhibitory concentration (MIC) test using the microdilution method. Furthermore, the growth curve and integrity of cell membrane of S. aureus and E. coli were investigated using standard microbiological methods.

HPLC-DAD analysis showed that the EEP of M. quadrifasciata quadrifasciata has a more complex chemical composition than the EEP of T. angustula. Moreover, UPLC-MS analyses of M. quadrifasciata quadrifascita indicated flavonoids and terpenes as major constituents. The bactericidal activity of both EEPs was higher against gram-positive bacteria than for gram-negative bacteria. The EEP from M. quadrifasciata quadrifasciata presented MIC values lower than the EEP from T. angustula for all tested bacteria.

The EEP from M. quadrifasciata quadrifasciata caused lysis of the bacterial wall and release of intracellular components from both E. coli and S. aureus.

Our findings indicate that the chemical composition of propolis from stingless bees is complex and depends on the species. The extract from M. quadrifasciata quadrifascita was more effective against gram-positive than gram-negative strains, especially against S. aureus and methicillin-resistant S. aureus compared to T. angustula extract, by a mechanism that involves disturbance of the bacterial cell membrane integrity.

Thursday, May 24, 2018

Honey Can Boost Testosterone, Decrease Side Effects of Chemotherapy on Reproductive Systems and Prevent Sterility (Cancer, Iran, Testicular)

Protective effects of Persian honey, Apis Mellifera Meda Skorikov on side effects of chemotherapy and ischemia/reperfusion induced testicular injury

J Complement Integr Med. 2018 May 23

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Introduction 

The aim of the present study was to survey the protective effect of pretreatment with Persian honey on amelioration of side effects of chemotherapy and ischemia/reperfusion induced testicular injury.

Materials and methods 

Forty adult's male wistar rats were divided into four groups of ischemia-reperfusion (IR), honey + ischemia-reperfusion (HIR), Busulfan (B) and Busulfan intraperitoneally+ honey (BH). The seminiferous tubules were rated for their modified spermatogenesis index (SI) by Johnsons score. Detection of single- and double-stranded DNA breaks at the early stages of apoptosis was performed using the in-situ cell death detection kit. Total serum concentration of Follicle-stimulating hormone (FSH) , Luteinizing hormone (LH) and testosterone was measured using ELISA. All data were expressed as mean ± SD and significance was set at p ≤ 0.05.

Results 

Honey improved SI in the HIR and BH groups and serum levels of FSH and LH in the BH and HIR groups (p < 0.001). Also, serum levels of testosterone were significantly higher in BH and HIR groups. But, apoptotic cells in IR and B groups significantly increased (p < 0.001), while in HIR and BH groups, the number of apoptotic cells decreased and the positive cells of TUNEL (TdT-mediated dUTP-X nick end labelling) staining were detected in spermatocytes and spermatid.

Discussion 

Pretreatment with honey protect testis against chemotherapy and testicular IR injury, increase FSH and LH and testosterone and decrease the cellular damage and apoptosis. Honey can decrease the side effects of chemotherapy on reproductive system and prevent sterility.

Wednesday, May 23, 2018

Thyme Honey Helps Treat Radiation-Induced Oral Mucositis, Improve Quality of Life in Head and Neck Cancer Patients

The effect of the use of thyme honey in minimizing radiation - induced oral mucositis in head and neck cancer patients: A randomized controlled trial.

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Eur J Oncol Nurs. 2018 Jun;34:89-97

PURPOSE:

Radiation-induced oral mucositis is one of the main side effects during and after the treatment of head and neck cancer patients. The study was designed to provide evidence on the effectiveness of thyme honey on oral mucositis management.

METHODS:

This was a randomised controlled trial (RCT) with 72 head and neck cancer patients who were divided either to the intervention group (thyme honey rinses) or to the control group (saline rinses). Oral mucositis was assessed according to the Radiation Therapy Oncology Group (RTOC criteria), and assessments were performed weekly starting at the 4th week of the radiotherapy for seven weeks and repeated once 6 months later. Additionally, the Oral Mucositis Weekly Questionnaire (OMWQ) was given at 4th week of radiotherapy, 1 month after the completion of radiotherapy and 6 months later. The ClinicalTrials.gov Identifier for this study is NCT01465308. This paper reports on the findings regarding thyme honey's effectiveness on oral mucositis.

RESULTS:

Generalized estimating equations revealed that patients in the intervention group were graded lower in the objective assessment of oral mucositis (p < 0,001), maintained their body weight (p < 0,001) and showed an improvement in their global health (p = 0.001) compared to the control group. Quality of life of the patients in the same group was also statistically significantly higher than that of the patients of the control group (p < 0,001).

CONCLUSION:

The study provided evidence on the positive effect of thyme honey on the management of radiation-induced oral mucositis and quality of life in head and neck cancer patients.

Tuesday, May 22, 2018

7th Apimedica & 6th Apiquality International Symposium Sibiu, Romania, 11 - 15 October 2018 (Bee Venom, Bee Pollen, Beeswax, Honey, Propolis, Royal Jelly)


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The meeting, organised by the Romanian Apitherapy Society (Apimondia member), in collaboration with Apimondia (the International Federation of Beekeepers’ Associations), will address the most relevant issues pertaining to apitherapy and the qualitative aspects of the production/use of bee products and is open to researchers, medical doctors, pharmacists, biochemists, biologists, therapists, students as well as to beekeepers.

The symposium will include: oral presentations, a poster session, keynote speakers, specific sessions (active compounds, properties, pharmacology and clinical applications of hive products; clinical aspects in human and veterinary medicine; best practices; residues in hive products; alkaloids in honey and pollen; standards and frauds) and practical training (practical demonstration and clinical evidence of apitherapy; on-field standard tools; innovative systems for beehives and hive products traceability).

The programme of the symposium will be as follows:

October 10, in the evening: Welcome Cocktail
October 11 (all day) + October 12 (until noon): Apiquality Symposium
October 12 evening: Social Dinner (optional)
October 12 (afternoon)-October 14: Apimedica Symposium
October 14 (afternoon): Technical Tour 1 (optional)
October 15: Workshops (optional)
October 16: Technical Tour 2 (optional)

For more details contact Dr Stefan Stangaciu at: drstangaciu@gmail.com

Monday, May 21, 2018

Bee Venom May Help Prevent Viral Diseases

Nasal delivery of chitosan/alginate nanoparticle encapsulated bee (Apis mellifera) venom promotes antibody production and viral clearance during porcine reproductive and respiratory syndrome virus infection by modulating T cell related responses

Vet Immunol Immunopathol. 2018 Jun;200:40-51

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In this study, we administered specially developed chitosan/alginate nanoparticle encapsulated BV (CH/AL-BV) which has slow-releasing properties and mucosal adhesiveness to pig via nasal route and evaluate whether it can facilitate systemic immune response and improve clearance of porcine reproductive and respiratory syndrome virus (PRRSV).

The CH/AL-BV-administered group with PRRSV vaccination showed significantly enhanced Th1-related responses including a high population of CD4+ T lymphocyte and cytokine mRNA levels including interferon-gamma (IFN-γ) and interleukin (IL)-12 and increased PRRSV-specific IgG levels. In the PRRSV challenge experiment, the CH/AL-BV group showed a significant decrease of viral burden in the sera and tissues (lung and bronchial lymph node) and mild interstitial pneumonia signs on both lung gross examination and microscopic evaluation with high levels of PRRSV-specific IgG and viral neutralizing antibody. CH/AL-BV also effectively induced not only Th1-related immune responses including increase in portion of CD4+ T lymphocyte, cytokines (IFN-γ and IL-12), and transcriptional factors (STAT4 and T-bet), but also stimulated IFN-γ-secreting cell families such as CD4+ T lymphocytes and Th/memory cells. Interestingly, the CH/AL-BV group showed decrease in PRRSV-specific immune-suppressive actions, including the T regulatory cell population and its related cytokines (IL-10 and TGF-β) and transcriptional factors (STAT5 and Foxp3).

Therefore, nasal-delivered CH/AL-BV may effectively induce non-specific immune stimulating actions, particularly those related to Th1 responses and viral clearance activities against PRRSV infection. Based on these results, CH/AL-BV could be a promising strategy for overcoming the disadvantages of classical PRRSV vaccination and can be applied as a preventive agent against PRRSV and other viral diseases, particularly those with immune-suppressive characteristics.

Sunday, May 20, 2018

Phenolic Compounds and Flavonoids in Brazilian Geopropolis of Stingless Bees

Characterisation of phenolic compounds by UPLC-QTOF-MS/MS of geopropolis from the stingless bee Melipona subnitida (jandaíra)

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Phytochem Anal. 2018 May 17

INTRODUCTION:

Melipona subnitida Ducke (jandaíra) is a stingless bee native to north-eastern Brazil, which produces geopropolis, a mixture of beeswax, plant resins, pollens and earth that is used for sealing beehives.

OBJECTIVE:

To extend the knowledge on phenolic compounds in fractions obtained by C18-solid phase extraction (SPE) of nine geopropolis samples from Melipona subnitida collected at different times.

METHODOLOGY:

Chromatographic profiles of nine samples of geopropolis from jandaíra were analysed by ultra-performance liquid chromatography coupled with a diode array detector and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF-MS/MS) and combined with the use of data-independent acquisition (MSE) for the profiling and structural characterisation of the phenolic compounds. The isolated compound was identified by nuclear magnetic resonance of hydrogen and carbon (1 H- and 13 C-NMR).

RESULTS:

The present study with geopropolis of jandaíra resulted in the characterisation of 51 phenolics by UPLC-DAD-QTOF-MS/MS: four galloyl glucosides, one ellagic acid, 11 acyl-hexosides, 23 acyl-galloyl-hexosides and 12 flavonoids. The structures of two compounds (1,6-di-O-(E)-coumaroyl-2-O-galloyl-β-d-glucopyranoside and 1-O-cinnamoyl-6-O-(E)-coumaroyl-2-O-galloyl-β-d-glucopyranoside) were established by 1 H and the attached proton test (APT) experiments as well as high-resolution electrospray ionisation mass spectroscopy (HR-ESI-MS) analysis.

CONCLUSION:

The geopropolis of jandaíra showed phenolic compounds galloyl hexosides, ellagic acid, acyl-(cinnamoyl/coumaroyl)-hexosides, acyl-(cinnamoyl/coumaroyl)-galloyl-hexosides and flavonoids (aglycones and acylated-O-glycosides).

Saturday, May 19, 2018

Propolis May Help Treat Bone Tumors in Dogs (Cancer, Pets)

Positive effects of antitumor drugs in combination with propolis on canine osteosarcoma cells (spOS-2) and mesenchymal stem cells

Biomed Pharmacother. 2018 May 15;104:268-274

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The combination of lower concentrations of antitumor drugs (carboplatin - CARB, doxorubicin - DOX, and methotrexate - MET) with propolis was investigated against canine osteosarcoma (spOS-2) and mesenchymal stem cells (MSC) in vitro. The mechanism of action in the combinations was analyzed.

spOS-2 cells were incubated up to 72 h with propolis (50 μg/ml) alone or in combination with CARB (10-400 μmol/l), DOX (0.5-2 μmol/l) or MET (50-200 μmol/l). Cell viability was assessed by MTT assay, apoptosis/necrosis by flow cytometry, and MSC was incubated with the optimum combination. Propolis alone exerted no cytotoxic action against spOS-2 cells, whereas CARB (400, 200 and 100 μmol/l) exhibited the highest cytotoxic effects comparing to DOX and MET.

The combination of propolis with the lowest concentrations of CARB led to better results comparing to CARB alone, which was not observed using DOX and MET. Apoptosis was involved in the action of propolis + CARB in spOS-2 cells. MSC were not affected by CARB/propolis, indicating that the cytotoxic action of the combination was specific to tumor cells but not to normal ones. Propolis improved the action of CARB against spOS-2 cells using lower concentrations of this drug, without affecting MSC.

These findings are relevant and indicate a possible application of propolis in OSA treatment.

Friday, May 18, 2018

Propolis Helps Treat Inflammation of the Eye

Propolis modulates NOS2/arginase-1 pathway in tropomyosin-induced experimental autoimmune uveitis

Inflammopharmacology. 2018 May 11

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In this study, we evaluated the preventive and curative effects of ethanolic extract of Propolis (EEP) during α-Tropomyosin-induced uveitis in an experimental model using Wistar rats, through the regulation of inducible nitric oxide synthase (NOS2) and arginase-1.

In this context, rats received daily injection of EEP (100 mg/kg) for 5 days prior to immunization or for 9 days commencing 5 days post immunization with α-Tropomyosin extract, then were sacrificed at day 14. Histological examination, NOS2, arginase-1, and nuclear factor-κB (NF-κB) expression were evaluated in the retinas. Plasmatic production of nitric oxide (NO), urea, IL-4, and TNF-α was assessed. We have found that treatment with EEP substantially reduced the retinal histological damages induced by α-Tropomyosin. In the same context, a significant decrease of NO and TNF-α levels was noticed. Interestingly, EEP down-modulated NOS2 and NF-κB expression in retina. Also, an increase in urea and IL-4 levels was concomitant to an up-modulation of arginase-1 expression.

Hence, it appears that EEP attenuated retinal damages through the induction of Th2 response and the inhibition of NF-κB/NOS2 pathway.

Thursday, May 17, 2018

Propolis Extracts Used to Ameliorate Immunogenicity of Pasteurella Bacterin (Fowl Cholera, Poultry, Atrophic Rhinitis, Pigs, Bovine Hemorrhagic Septicemia, Cows)

The Enhancement of the Pasteurella's Bacterin by Propolis Extracts

Rep Biochem Mol Biol. 2018 Apr;6(2):208-218

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Background:

Pasteurella multocida continues to pose a danger to prone farm and wild animals all over the world. Chemotherapeutic treatments are progressively losing their effectiveness, last for long time, and cost a lot of money, as well as being toxic to human consumers. Therefore, clearing the way for immunization as a big-wheel alternative against the economic grain. Yet, the vaccines available in the market do not confer the necessary protection against the pathogen. The integration of the well adjuvanted killed vaccine with the attenuated vaccines proved to offer an effective protection to the host animals. However, the bare use of the killed bacterin to provide protection from the possible harm of the live attenuated vaccine was doubtful.

Methods:

In the present study, propolis extracts were used to ameliorate the immunogenicity of the Pasteurella bacterin. The cellular and humoral activities were assessed for the different bacterin formulations.

Results:

Propolis extracts adjuvants proved to broaden and extend the IgG potency, as well as to induce a unique mucosal protection against the bacterium. Simultaneously it offered an anti-inflammatory effect that increased the tolerability to the bacterin. While the cellular activity was relatively reduced with propolis extracts.

Conclusion:

These results confirm the effectiveness of the formulation of the bacterin with propolis to offer a potent homologous primary protection to the animals against the long-life use of the attenuated Pasteurella vaccines.

Wednesday, May 16, 2018

Propolis May Help Prevent Heart Attacks

Propolis ethanolic extracts reduce adenosine diphosphate induced platelet aggregation determined on whole blood

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Nutr J. 2018 May 14;17(1):52

BACKGROUND:

Propolis is a well-known bee product containing more than 2000 identified compounds. It has many beneficial effects on human health that include antibacterial, antiviral, anticancer and hepatoprotective justifying its use as a dietary supplement. Platelet aggregation plays crucial role in thrombus formation that can cause stroke or heart attacks. As cardiovascular diseases, including those caused by thrombus formation, are related to 50% of deaths of Western population, the objective of this study was to determine antiaggregatory activity of propolis on platelet aggregation on the whole blood samples.

METHODS:

Twenty one propolis samples from Southeast Europe were characterized by spectrophotometric methods to determine content of the total flavonoids and phenolic acids. High performance liquid chromatography coupled with diode array detection was used to identify and quantify individual polyphenols. Platelet aggregation was tested by impedance aggregometry on the whole blood samples of ten healthy volunteers.

RESULTS:

The mean content of total polyphenols was 136.14 mg/g and ranged from 59.23 to 277.39 mg/g. Content of total flavonoids ranged between 6.83 and 55.44 mg/g with the mean value of 19.28 mg/g. Percentage of total phenolic acids was in the range 8.79 to 45.67% (mean 26.63%). Minimal antiaggregatory concentration, representing the lowest concentration of propolis extract sample that can cause statistically significant reduction of aggregation, ranged from 5 μM to 10.4 mM. Samples of propolis with lower content of luteolin and higher content of pinocembrin-7-methyleter showed better antiplatelet activity i.e. lower values of minimal antiaggregatory concentration.

CONCLUSIONS:

This is the first study that shows antiaggregatory potential of propolis ethanolic extracts on the whole blood samples in the low micromolar concentrations suggesting that propolis supplementation may influence platelet aggregation and consequently thrombus formation. Further in vivo studies are needed to confirm the beneficial effects in prevention of cardiovascular diseases.

Tuesday, May 15, 2018

Manuka Honey Helps Fight Allergies and Hay Fever, Expert Claims

The Independent (UK): Try a spoonful of manuka honey when you get the sniffles this summer

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For those who suffer from hay fever, enjoying all that summer has to offer is far easier said than done.

As beautiful as the weather can be, attempting to make the most of it can seem fruitless when you have to simultaneously endure a runny nose, itchy eyes and a persistent cough.

While it’s important to consult your doctor so that they can recommend the ideal medication to help you cope with your hay fever, an expert claims that regularly consuming manuka honey could also help soothe your symptoms...

Monday, May 14, 2018

Some Greek Honeys Have Higher Antibacterial Activity Than Manuka Honey

Antibacterial and antioxidant activity of different types of honey derived from Mount Olympus in Greece

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Int J Mol Med. 2018 May 4



The aim of the present study was to examine the antioxidant and antibacterial activity of 21 types of honey derived from Mount Olympus (Mt. Olympus), a region with great plant biodiversity. The antibacterial activity was examined against the growth of Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) by the agar well diffusion assay and the determination of the minimum inhibitory concentration (MIC).

The antioxidant activity was assessed by using the 2,2‑diphenyl‑1‑picrylhydrazyl (DPPH) and 2,2'‑azino‑bis(3‑ethylbenzothiazoline‑6‑sulphonic acid (ABTS•+) free radical scavenging assays. These activities were compared to Manuka honey which is used as an alternative medicine. The results revealed that all tested honey types exhibited antibacterial activity against S. aureus and P. aeruginosa. The MIC of the tested honey types against S. aureus ranged from 3.125 to 12.5% (v/v), while MIC of Manuka honey was determined to be 6.25% (v/v).

The MIC values of the tested honey types against P. aeruginosa ranged from 6.25 to 12.5% (v/v) and the MIC of Manuka honey was determined at 12.5% (v/v). Moreover, the results suggested that the presence of hydrogen peroxide and proteinaceous compounds in the honey types accounted, at least in part, for the antibacterial activity. In addition, the total polyphenolic content (TPC) of the honey types seemed to contribute to the antibacterial activity against P. aeruginosa. Furthermore, some of the tested honey types exhibited potent free radical scavenging activity against DPPH and ABTS•+ radicals, which was greater than that of Manuka honey.

The results indicated that not only the quantity, but also the quality of the polyphenols were responsible for the antioxidant activity. Moreover, four honey types exhibiting great antioxidant activity were converted to powder using a freeze drying method. The results indicated that following conversion to powder all honey types, apart from one, retained their antioxidant activity, although their TPC was reduced.

On the whole, and at least to the best of our knowledge, the present study is the first that extensively examined the bioactivities of different types of honey derived from Mt. Olympus...

In conclusion, the present study was the first to examine antioxidant and antibacterial activities of honey types derived from Mt. Olympus which exhibits a high plant biodiversity. The tested honey types exerted antibacterial activity against S. aureus and P. aeruginosa. Importantly, some of the honey types had a higher antibacterial activity than Manuka honey, which is used as an alternative medicine. It seemed that hydrogen peroxide and proteinaceous compounds found in the honey types were responsible, at least in part, for the observed antibacterial activity...

Sunday, May 13, 2018

Brazilian Propolis May Help Treat Amyloid Disease (Brazil, Amyloidosis)

Inhibitory effect of propolis on the development of AA amyloidosis

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J Toxicol Pathol. 2018 Apr;31(2):89-93

In the several types of amyloidoses, participation of oxidative stresses in the pathogenesis and the effect of antioxidants on amyloidosis have been reported. Meanwhile, the relationship between oxidative stresses and pathogenesis of amyloid A (AA) amyloidosis is still unclear.

In this study, we used an antioxidant, Brazilian propolis, to investigate the inhibitory effects on AA amyloidosis. The results showed that AA deposition was inhibited by administration of propolis. Increased expression of antioxidant markers was detected in molecular biological examinations of mice treated with propolis. Although serum amyloid A (SAA) levels were strongly correlated with the immunoreactive area of AA deposits in the control group, the correlation was weaker in the propolis-treated groups. In addition, there were no changes in SAA levels between the control group and the propolis-treated groups.

The results indicate that propolis, an antioxidant, may induce inhibitory effects against AA amyloidosis.

Saturday, May 12, 2018

Propolis May Help Treat Apoptosis-Resistant Breast Cancer

The cytotoxic effects of propolis on breast cancer cells involve PI3K/Akt and ERK1/2 pathways, mitochondrial membrane potential, and reactive oxygen species generation

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Inflammopharmacology. 2018 May 10

Propolis has been extensively used to improve health and prevent inflammatory diseases. Different types of Cuban propolis (red, brown and yellow) have been documented. The purpose of this research was to investigate the cytotoxic effects of Cuban red propolis (CP) on MDA MB-231 cell line, since breast cancer is considered one of the most common causes of mortality among women.

Antiproliferative and cytotoxic activity of CP against MDA MB-231 cells were determined by the 3-[4,5-dimethylth-iazol-2-yl]-2,5-diphenyl tetrazoliumbromide (MTT) and lactate dehydrogenase (LDH) assays. Apoptosis/necrosis, involvement of PI3K/Akt and ERK1/2 pathways, mitochondrial membrane potential and expression of genes were investigated. CP extract exhibited antiproliferative and cytotoxic effects on MDA MB-231 cells, what may be probably related to PI3K/Akt and ERK1/2 pathways. A decreased expression of apoptosis-related genes (TP53, CASP3, BAX and P21) was seen, whereas the expressions of BCL-2, BCL-XL, NOXA and PUMA were unaffected. CP extract induced mitochondrial dysfunction and LDH release, what indicated cell necrosis associated with reactive oxygen species production and decreased cell migration.

Our findings provide a basis for future investigation of chemopreventive and/or therapeutic studies against apoptosis-resistant breast cancer, in animals and humans.

Friday, May 11, 2018

Honey Boosts Wound Healing and Tissue Regeneration

Honey: an effective regenerative medicine product in wound management

Curr Med Chem. 2018 May 10

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Honey has successfully been used in treatment of a broad spectrum of injuries including burns and non-healing wounds. It acts as antibacterial and anti-biofilm agent with anti/pro-inflammatory properties. However, besides these traditional properties, recent evidence suggests that honey is also an immunomodulator in wound healing and contains several bee and plant-derived components that may speed up the wound healing and tissue regeneration process.

Identifying their exact mechanism of action allows better understanding of honey healing properties and promotes its wider translation into clinical practice.

This review will discuss the physiological basis for the use of honey in wound management, its current clinical uses, as well as the potential role of honey bioactive compounds in dermal regenerative medicine and tissue re-modelling.

Thursday, May 10, 2018

Propolis and Its Potential to Treat Gastrointestinal Disorders (Gastritis, Ulcers, Crohn's Disease, Colitis, Mucositis)

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Evid Based Complement Alternat Med. 2018 Mar 15;2018:2035820

There are a number of disorders that affect the gastrointestinal tract. Such disorders have become a global emerging disease with a high incidence and prevalence rates worldwide.

Inflammatory and ulcerative processes of the stomach or intestines, such as gastritis, ulcers, colitis, and mucositis, afflict a significant proportion of people throughout the world. The role of herbal-derived medicines has been extensively explored in order to develop new effective and safe strategies to improve the available gastrointestinal therapies that are currently used in the clinical practice.

Studies on the efficacy of propolis (a unique resinous aromatic substance produced by honeybees from different types of species of plants) are promising and propolis has been effective in the treatment of several pathological conditions.

This review, therefore, summarizes and critiques the contents of some relevant published scientific papers (including those related to clinical trials) in order to demonstrate the therapeutic value of propolis and its active compounds in the treatment and prevention of gastrointestinal diseases.


Wednesday, May 09, 2018

Propolis May Help Treat Chronic Wound Infections

The impact of ethanol extract of propolis on biofilm forming by Proteus Mirabilis strains isolated from chronic wounds infections

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Nat Prod Res. 2018 May 4:1-5

Alcoholic propolis extracts may be used to eliminate microbes in mucous membranes and skin inflammations and in wound infections.

The aim of this study was an assessment of the ethanol extract of propolis (EEP) activity against biofilm formation by P. mirabilis. Six clinical strains of P. mirabilis isolated from patients with chronic wound infection, and one reference strain of P. mirabilis ATCC 29906 were used. Biofilm was formed in 96-well plate. In order to evaluate the effect of EEP at a concentration range of 1.56-100 mg/mL on the forming and mature biofilm, P. mirabilis cells were released by sonication.

In this study the effectiveness of 25-100 mg/mL of EEP on the forming P. mirabilis biofilm and concentrations of 25-50 mg/mL of EEP on formed biofilm has been demonstrated.

Our results suggest the possibility of using the EEP in treatment of chronic wound infection caused by P. mirabilis.

Monday, May 07, 2018

Brazilian Propolis May Help Treat Diabetes (Diet, Dieting, Weight Loss)

Brazilian propolis ethanol extract and its component kaempferol induce myeloid-derived suppressor cells from macrophages of mice in vivo and in vitro

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BMC Complement Altern Med. 2018 May 2;18(1):138

BACKGROUND:

Brazilian green propolis is produced by mixing secretions from Africanized honey bees with exudate, mainly from Baccharis dracunculifolia. Brazilian propolis is especially rich in flavonoids and cinammic acid derivatives, and it has been widely used in folk medicine owing to its anti-inflammatory, anti-viral, tumoricidal, and analgesic effects. Moreover, it is applied to prevent metabolic disorders, such as type 2 diabetes and arteriosclerosis. Previously, we demonstrated that propolis ethanol extract ameliorated type 2 diabetes in a mouse model through the resolution of adipose tissue inflammation. The aims of this study were to identify the immunosuppressive cells directly elicited by propolis extract and to evaluate the flavonoids that induce such cells.

METHODS:

Ethanol extract of Brazilian propolis (PEE; 100 mg/kg i.p., twice a week) was injected into lean or high fat-fed obese C57BL/6 mice or C57BL/6 ob/ob mice for one month. Subsequently, immune cells in visceral adipose tissue and the peritoneal cavity were monitored using FACS analysis. Isolated macrophages and the macrophage-like cell line J774.1 were treated with PEE and its constituent components, and the expression of immune suppressive myeloid markers were evaluated. Finally, we injected one of the identified compounds, kaempferol, into C57BL/6 mice and performed FACS analysis on the adipose tissue.

RESULTS:

Intraperitoneal treatment of PEE induces CD11b+, Gr-1+ myeloid-derived suppressor cells (MDSCs) in visceral adipose tissue and the peritoneal cavity of lean and obese mice. PEE directly stimulates cultured M1 macrophages to transdifferentiate into MDSCs. Among twelve compounds isolated from PEE, kaempferol has an exclusive effect on MDSCs induction in vitro. Accordingly, intraperitoneal injection of kaempferol causes accumulation of MDSCs in the visceral adipose tissue of mice.

CONCLUSION:

Brazilian PEE and its compound kaempferol strongly induce MDSCs in visceral adipose tissue at a relatively early phase of inflammation. Given the strong anti-inflammatory action of MDSCs, the induction of MDSCs by PEE and kaempferol is expected to be useful for anti-diabetic and anti-inflammatory therapies.

Saturday, May 05, 2018

Propolis Protects Against Lung, Liver Inflammation

Propolis Protects Endotoxin Induced Acute Lung and Liver Inflammation Through Attenuating Inflammatory Responses and Oxidative Stress

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J Med Food. 2018 May 2

Propolis is a natural bee product, and it has many effects, including antioxidant, anti-inflammatory, antihepatotoxic, and anticancer activity. In this study, we aimed to explore the potential in vivo anti-inflammatory, antioxidant, and antiapoptotic properties of propolis extract on lipopolysaccharide (LPS)-induced inflammation in rats.

Forty-two, 3- to 4-month-old male Sprague Dawley rats were used in six groups. LPS (1 mg/kg) was administered intraperitoneally to rats in inflammation, inflammation + propolis30, and inflammation+propolis90 groups. Thirty milligram/kilogram and 90 mg/kg of propolis were given orally 24 h after LPS injection. After the determination of the inflammation in lung and liver tissues by 18F-fluoro-deoxy-d-glucose-positron emission tomography (18FDG-PET), samples were collected.

The levels of malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), nitric oxide (NO), and DNA fragmentation were determined. The decrease of MDA levels in inflammation + propolis30 and inflammation + propolis90 groups was determined compared to the inflammation group in lung and liver tissues. The increase of SOD% inhibition in inflammation + propolis90 group was determined in liver, lung, and hemolysate compared to the inflammation group.

Increased CAT activities in inflammation + propolis30 and inflammation + propolis90 groups were observed in liver tissue and hemolysate compared to inflammation group. In lung tissue, NO levels were lower in inflammation group compared to the control group, but DNA fragmentation levels were higher. 18F-FDG uptake of tissues in inflammation + propolis30 and inflammation + propolis90 groups was decreased compared to the inflammation group.

In conclusion, the data of this study indicate that the propolis application may serve as a potential approach for treating inflammatory diseases through the effect of reducing inflammation and free oxygen radical production.

Friday, May 04, 2018

Turkish Propolis Shows High Antioxidative and Antimicrobial Activities

Profiling of Turkish propolis subtypes: Comparative evaluation of their phytochemical compositions, antioxidant and antimicrobial activities

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Highlights

• Phenolic profiling of three subtypes of Turkish poplar type propolis was studied.
• Quality control parameters of three subtypes of propolis were investigated.
• O-subtype propolis had higher total phenolic and flavonoid contents than B- subtype.
• O-subtype of propolis showed higher antioxidative and antimicrobial activities.

Abstract

Comprehensive analysis of phenolic profiles of botanically different subtypes of Turkish propolis samples were performed using UHPLC–LTQ/Orbitrap/MS/MS method, and additionally total phenolic (TPC) and total flavonoid contents (TFC) as well as their antioxidative activities were evaluated by spectrophotometry.

Antimicrobial activity of Turkish propolis against oral cavity bacteria from the genus Streptococcus (S. pyogenes, S. sanguinis, S. mutans) and Candida albicans ATCC 10231 was determined by diffusion and microdilution methods. Extensive fingerprint analysis of Turkish propolis revealed the presence of fifty one phenolic compounds, with fifteen quantified which confirm their affiliation to the two subtypes of the European propolis.

All analysed samples have shown antimicrobial potential against all tested bacteria, with S. pyogenes being the most sensitive one. Turkish propolis, especially its orange subtype, can be considered as the high-quality product due to its rich phenolic and flavonoid content, strong antioxidative and antimicrobial activities. Turkish propolis could be, therefore, a good raw material for food and pharmaceutical industry.

Thursday, May 03, 2018

Mexican Propolis of Chihuahua May Help Treat Diabetes

Hypoglycaemic and Antioxidant Effects of Propolis of Chihuahua in a Model of Experimental Diabetes

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Evid Based Complement Alternat Med. 2018 Mar 11;2018:4360356

Propolis is a bee-collected natural product that has been proven to have various bioactivities. This study tested the effects of a Mexican propolis on streptozotocin-induced diabetes mellitus in a murine model.

The results showed that an ethanolic extract of propolis of Chihuahua (EEPCh) significantly inhibited increases in blood glucose and the loss of body weight in diabetic mice. EEPCh increased plasma insulin levels in STZ-diabetic mice, whereas, in untreated diabetic mice, there was no detection of insulin. EEPCh had a high antioxidant capacity (SA50 = 15.75 μg/mL), which was directly related to the concentrations of total phenols (314 mg GAE/g of extract) and flavonoids (6.25 mg QE/g of extract).

In addition, increased activities of the enzymes superoxide dismutase, catalase, and glutathione peroxidase were observed in diabetic mice treated with EEPCh. Compounds such as pinocembrin, quercetin, naringin, naringenin, kaempferol, acacetin, luteolin, and chrysin were identified by HPLC-MS analysis.

This investigation demonstrated that propolis of Chihuahua possesses hypoglycaemic and antioxidant activities and can alleviate symptoms of diabetes mellitus in mice. These effects may be directly related to the chemical composition of propolis, as most of the compounds identified in propolis are reportedly active in terms of the different parameters evaluated in this work.

Wednesday, May 02, 2018

Honey Used to Treat High Blood Pressure (Hypertension) in Sierra Leone

Herbal medicine use among hypertensive patients attending public and private health facilities in Freetown Sierra Leone

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Complement Ther Clin Pract. 2018 May;31:7-15

OBJECTIVE:

This study aimed to determine the prevalence, determinants and pattern of herbal medicine use among hypertensive patients in Freetown.

METHODS AND MATERIALS:

We conducted a cross-sectional study among hypertensive patients attending public and private health facilities in Freetown, Sierra Leone between August and October 2016. We analyzed the data using SPSS version 24. We used Chi-square, Fisher exact two-tailed test and regression analysis for data analysis. A p-value less than 0.05 was considered statistically significant.

RESULTS:

Out of 260 study participants, over half (n = 148, 56.9%) reported using herbal medicine for the treatment of hypertension alone or together with comorbid condition(s). The most commonly used herbal medicine among users were honey (n = 89, 33.3%), moringa (n = 80, 30.0%) and garlic (n = 73, 27.3%). No significant difference existed between users and non-users of herbal medicine with regards to socio-demographic and health-related factors. The majority (n = 241, 92.7%) of respondents considered herbal medicine beneficial if it was recommended by a healthcare provider yet 85.1% (n = 126) did not disclose their herbal medicine use to their health care provider.

CONCLUSION:

There is a high use of herbal medicines among hypertensive patients in Freetown, Sierra Leone. It is essential for healthcare providers to take heed of the findings of this study and routinely ask their patients about their herbal medicine use status. Such practice will provide the opportunity to discuss the benefits and risks of herbal medicine use with the aim of maximizing patient desired therapeutic outcomes.

Tuesday, May 01, 2018

Apimedica & Apiquality October 11-16, 2018 in Romania (Propolis, Royal Jelly, Beeswax, Bee Venom, Bee Pollen, Honey)


Apimedica & Apiquality 2018 + the XI-th. Romanian Apitherapy Congress, Expo and Workshops, Sibiu, Romania, October 11-16, 2018

For more details, contact Dr Stefan Stangaciu at: drstangaciu@gmail.com

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Monday, April 30, 2018

Constituents of Propolis May Help Treat Tongue Cancer


Constituents of Propolis: Chrysin, Caffeic Acid, p-Coumaric Acid, and Ferulic Acid Induce PRODH/POX-Dependent Apoptosis in Human Tongue Squamous Cell Carcinoma Cell (CAL-27)

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Front Pharmacol. 2018 Apr 6;9:336

Propolis evokes several therapeutic properties, including anticancer activity. These activities are attributed to the action of polyphenols. Previously it has been demonstrated, that one of the most abundant polyphenolic compounds in ethanolic extracts of propolis are chrysin, caffeic acid, p-coumaric acid, and ferulic acid.

Although their pro-apoptotic activity on human tongue squamous cell carcinoma cells (CAL-27) was established previously, the detailed mechanism of this process remains unclear. Considering the crucial role of proline metabolism and proline dehydrogenase/proline oxidase (PRODH/POX) in the regulation of cancer cell survival/apoptosis, we studied these processes in polyphenol-treated CAL-27 cells. All studied polyphenols evoked anti-proliferative activity, accompanied by increased PRODH/POX, P53, active caspases-3 and -9 expressions and decreased collagen biosynthesis, prolidase activity and proline concentration in CAL-27 cells.

These data suggest that polyphenols of propolis induce PRODH/POX-dependent apoptosis through up-regulation of mitochondrial proline degradation and down-regulation of proline utilization for collagen biosynthesis.

Sunday, April 29, 2018

East Java Propolis May Help Treat Tooth Infections (Tooth Ache, Dentistry, Tooth Decay, Cavities, Root Canal, Periodontitis)

Expression of Osteoprotegrin and Osteoclast Level in Chronic Apical Periodontitis Induced with East Java Propolis Extract

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Iran Endod J. 2018 Winter;13(1):42-46

Introduction:

The objective of this animal study was to promote East Java propolis as a potential natural intracanal medicament for periapical chronic apical periodontitis bone resorption through evaluating the expression of osteoprotegrin (OPG) and osteoclast level.

Methods and Materials:

Propolis extract was produced using a maceration procedure. Thirty Wistar rats were divided into three groups. In group I, the control group, the first upper right molar constituted a healthy tooth. In group II, containing rodents with experimentally chronicapical periodontitis, infection with Enterococcus faecalis ATCC29212 106 CFU was performed. In group III, the treatment group, after being injected with E faecalis, 10 μL propolis was applied. It required 21 days to induce post-pulp chronic apical periodontitis infection. The rats were euthanised for immunohistochemical examination in order to measure the expression of OPG and to count histologically the number of osteoclast.

Result:

The expression of OPG and osteoclast constituted 17.5±1.58 and 6.4±0.96 in group I, 10±2 and 16.2±1.31 in group II and 17±1.69 and 7.5±1.08 in group III. Group I presented the highest level of OPG expression but the lowest level of osteoclast expression. There were significant differences between groups II and III and group I regarding OPG and osteoclast expression (P < 0.05).


Conclusion:

East Java Propolis was a potential intracanal medicament promoting an increase in osteoprotegerin expression and a decrease in the number of osteoclasts thereby inhibiting osteoclastogenesis.

Saturday, April 28, 2018

Iranian Propolis Superior to Antibiotic Paste, Calcium Hydroxide in Treating Dental Root Canals

Comparison of Residual Triple Antibiotic Paste, Propolis and Calcium Hydroxide on Root Canal Walls in Natural Open Apex Teeth: An In Vitro Study

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Iran Endod J. 2018 Winter;13(1):25-29

Introduction:

Endodontic therapy is challenging in open apex teeth. One of these problems is the residue of medicaments on root canal walls. The aim of this study was to evaluate the amount of residual materials on canal walls after the use as medicaments within natural open apex teeth.

Methods and Materials:

A total of 45 human extracted single-rooted premolars with open apices were selected. After cutting off the crowns, root canals were gently instrumented using #40 files and irrigated with 0.5% sodium hypochlorite. The samples were randomly divided into three groups: calcium hydroxide (CH), triple antibiotic paste (TAP) and propolis (PP). In these groups, CH, TAP, or PP were placed into the canals, respectively. The samples were then restored with temporary fillings. After one week, instrumentation was again performed as mentioned above. The samples were longitudinally cut and scanned and the remaining material in both halves was evaluated using computer software. One-way ANOVA was used to compare the average paste level remaining on the canal walls.

Results:

The residual amount of CH on the canal walls was significantly higher than that of PP (P = 0.001). The residual amount of CH was higher than TAP but this difference was not significant (P = 0.144); the residual amount of TAP was higher than PP but this difference was not significant, either (P = 0.094).

Conclusion:

PP is superior to CH and TAP in terms of removability from the root canal system within open apex teeth.

Friday, April 27, 2018

Propolis Conference - 'Propolis in Human and Bee Health' - Sofia, Bulgaria, on September 28-29, 2018


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The scientific program of the Second Propolis Conference focuses on the latest developments as well as the future outlook of all related aspects of propolis research and application, such as chemistry, biological activity, importance to bees, analyses, standardization, synergy, medical applications, applications in food industry, etc. A rich social program throughout the conference will also be provided for informal interactions. You will have the opportunity to become a member of the International Propolis Research Group, which was formed in autumn last year, based on the energy and enthusiasm generated in Glasgow.

The host city of the Conference Sofia is the capital of Bulgaria, a place of ancient and contemporary culture with a great vibe to all generations.

GO TO: http://propolisconference2018.cim.bg/

Thursday, April 26, 2018

Mexican Stingless Bee Honey Used to Treat Diabetic Foot Wounds


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Mieles de abejas sin aguijón en el tratamiento de úlceras de pie diabético

Salud Publica Mex. 2018 Jan-Feb;60(1):102-104

Señor editor: La formación de úlceras infecciosas en miembros inferiores de pacientes diabéticos es un motivo de consulta cada vez más frecuente. Debido a la neuropatía y al costo del tratamiento, es común observar úlceras en estados infecciosos avanzados que son imposibles de sanar. En diversos hospitales de países desarrollados se emplean alternativas más económicas para el cuidado profesional de heridas, como la miel de Manuka, producida por Apis mellifera.1 En otros países como México, se cuenta también con la miel de abejas nativas sin aguijón, que desde épocas precolombinas ha sido empleada para el tratamiento de diversas afecciones oculares, gastrointestinales, respiratorias y cutáneas.2 Estudios in vitro con mieles de abejas melíferas y de abejas sin aguijón han demostrado que éstas últimas tienen mayor actividad antimicrobiana.3,4

En este estudio se evaluaron mieles de las especies de abejas nativas Melipona beecheii y M. solani, para el tratamiento de úlceras en pie de pacientes con diabetes tipo II y lesiones grado 2 - Wagner. De manera aleatoria, se asignaron pacientes a cada uno de los siguientes tratamientos: a) miel de abeja sin aguijón (M. beecheii [Mb, n = 5 pacientes] y M. solani [Ms, n = 4]), y b) miel de abeja sin aguijón mezclada con un tratamiento convencional, denominado U (colágeno y cloranfenicol): miel Mb+U (n = 5) y miel Ms+U (n = 5). Para cada paciente se llenó una ficha de registro en donde se incluyeron características del paciente y de las heridas (cuadro I). Una vez que la herida alcanzaba 80% de epitelización, los pacientes eran dados de alta. Se determinó la relación entre la tasa de epitelización y las características de los pacientes mediante correlación lineal de Pearson. La tasa de epitelización se calculó con el tamaño final de la herida menos el tamaño inicial, dividido entre el número de días transcurridos entre la primera y la última medición, y se analizó con una prueba de permutación sobre un modelo lineal (Software R, paquete lmperm v2.1.0*).

Honeys of stingless bees in the treatment of diabetic foot ulcers

Mr. Editor: The formation of infectious ulcers in the lower limbs of diabetic patients is a reason for consultation more and more frequently. Due to neuropathy and the cost of treatment, it is common to see ulcers in advanced infectious states that are impossible to heal. In several hospitals in developed countries, cheaper alternatives are used for the professional care of wounds, such as Manuka honey, produced by Apis mellifera.1 In other countries such as Mexico, honey is also available from native stingless bees, which since Pre-Columbian times have been used to treat various eye, gastrointestinal, respiratory and skin conditions.2 In vitro studies with honeys of honey bees and stingless bees have shown that the latter have greater antimicrobial activity.3,4

In this study, honeys from the native bee species Melipona beecheii and M. solani were evaluated for the treatment of foot ulcers of patients with type II diabetes and grade 2 - Wagner lesions. Randomly, patients were assigned to each of the following treatments: a) stingless bee honey (M. beecheii [Mb, n = 5 patients] and M. solani [Ms, n = 4]), and b) honey of stingless bee mixed with a conventional treatment, called U (collagen and chloramphenicol): honey Mb + U (n = 5) and honey Ms + U (n = 5). For each patient, a registration form was filled in which patient and wound characteristics were included (Table I). Once the wound reached 80% epithelization, the patients were discharged. The relationship between the epithelization rate and the characteristics of the patients was determined by Pearson's linear correlation. The epithelization rate was calculated with the final wound size minus the initial size, divided by the number of days elapsed between the first and the last measurement, and analyzed with a permutation test on a linear model (Software R, package lmperm v2.1.0 *).

Wednesday, April 25, 2018

Propolis Components Show Anti-Cancer Activity

Constituents of Propolis: Chrysin, Caffeic Acid, p-Coumaric Acid, and Ferulic Acid Induce PRODH/POX-Dependent Apoptosis in Human Tongue Squamous Cell Carcinoma Cell (CAL-27)

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Front Pharmacol. 2018 Apr 6;9:336

Propolis evokes several therapeutic properties, including anticancer activity. These activities are attributed to the action of polyphenols. Previously it has been demonstrated, that one of the most abundant polyphenolic compounds in ethanolic extracts of propolis are chrysin, caffeic acid, p-coumaric acid, and ferulic acid.

Although their pro-apoptotic activity on human tongue squamous cell carcinoma cells (CAL-27) was established previously, the detailed mechanism of this process remains unclear. Considering the crucial role of proline metabolism and proline dehydrogenase/proline oxidase (PRODH/POX) in the regulation of cancer cell survival/apoptosis, we studied these processes in polyphenol-treated CAL-27 cells.

All studied polyphenols evoked anti-proliferative activity, accompanied by increased PRODH/POX, P53, active caspases-3 and -9 expressions and decreased collagen biosynthesis, prolidase activity and proline concentration in CAL-27 cells.

These data suggest that polyphenols of propolis induce PRODH/POX-dependent apoptosis through up-regulation of mitochondrial proline degradation and down-regulation of proline utilization for collagen biosynthesis.

Tuesday, April 24, 2018

Standardization of Bee Venom Without Allergens for Acupuncture (Arthritis, Multiple Sclerosis, Lupus, Gout, Bursitis, Tendinitis, Fibromyalgia, Scleroderma)

Standardization of the Manufacturing Process of Bee Venom Pharmacopuncture Containing Melittin as the Active Ingredient

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Evid Based Complement Alternat Med. 2018 Feb 25;2018:2353280

Background:

Pharmacopuncture is a unique treatment in oriental medicine that combines chemical stimulation with conventional acupuncture. However, there are no standardized methods for preparing the herbal medicines used in pharmacopuncture, and it is not clear whether the active ingredients are safe and stable. Several studies have investigated nonstandardized preparation processes, but few investigations have addressed safety and preparation methods. Pharmacopuncture may provide an alternative treatment for incurable diseases. However, it must be as valid and safe as standardized medicine. In this way, the present project may contribute to the industrialization of medicine in Korea. It may also expand health insurance coverage by promoting evidence-based medical insurance benefits. Thus, the present study attempted to standardize and improve the raw materials, preparation, and efficacy of bee venom pharmacopuncture (BVP), which is a highly effective technique in oriental medicine.

Method:

To purify the crude bee venom, the extract was subjected to a stepped-gradient open column (ODS-A; 120 Å, 150 mesh). Using this method, the yield of melittin was significantly increased and the allergen proteins were effectively removed. The melittin content of the purified bee venom was determined using HPLC, and the product was then diluted to 0.1 mg/mL using injection water in preparation for BVP.

Results:

In the present study, we standardized the purification process to provide safe and stable BVP by increasing the main effective components and eliminating allergens. This study will be seminal in the industrialization and regulation of BVP.

Conclusion:

We developed an effective strategy for melittin purification and allergen removal from bee venom to create safe BVP.

Monday, April 23, 2018

Propolis May Help Treat Gastric Inflammation, Peptic Ulcer, Gastric Cancer Caused by Helicobacter pylori (H. pylori) Infections

Propolis: The future therapy against Helicobacter pylori-mediated gastrointestinal diseases

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Journal of Applied Biomedicine
Volume 16, Issue 2, May 2018, Pages 81-99

Helicobacter pylori (H. pylori), which is found in the stomach of approximately 50% of humans, remains there for almost the entire lifetime of the infected individual, leading to various gastrointestinal tract-associated disorders following full-blown infection. Due to the emergence of antibiotic resistance, recurrence and high cost of therapy, most antibiotic-based treatment strategies are not very effective in eradicating H. pylori infections.

The quest for an alternative treatment free of these inconveniences is currently in demand. One of the important alternatives is propolis, produced by the honeybee Apis mellifera, which has been used to treat different diseases since it possesses a wide range of biochemical properties. Propolis has been reported as a useful therapeutic regimen against H. pylori, which is an important cause of gastric inflammation, peptic ulcer, gastric cancer, and lymphomas of mucosa-associated lymphoid tissues. Apart from propolis, various active compounds of other natural products have also been confirmed to be effective.

This review compiles the scientific evidence of the role of propolis and other natural products against H. pylori-associated gastrointestinal tract-related health complexities by acing as an anti-angiogenic, anti-inflammatory, and antioxidant factor as well as via modulation of enzymatic activities.

Sunday, April 22, 2018

Honey Bee Propolis is a Safe and Natural Sanitizer

Evaluation of propolis extract as a disinfectant of Japanese quail (Coturnix coturnix japonica) hatching eggs

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Poult Sci. 2018 Apr 17

This study was carried out to evaluate the effectiveness of an alcoholic propolis extract (15%) as a disinfectant for Japanese quail (Coturnix coturnix japonica) hatching eggs. A total of 600 eggs were randomly divided into four experimental groups: 1) negative control (NC), without disinfection, 2) control (C), fumigated with formaldehyde gas, 3) (A), sprayed with 96% alcohol, and 4) (P), sprayed with 15% alcoholic propolis extract.

The eggs were incubated artificially in a BIOS hatching apparatus under standard conditions. On the 14th day, the eggs were candled to determine the number of infertile eggs and dead embryos and samples were collected for microbial analysis. After 17.5 d, fertility, hatchability, embryonic mortality, and eggshell conductance were calculated. Fertile eggs sprayed with propolis were shown to have a lower eggshell conductance constant (egg weight loss) than eggs from groups C and A. Total microbial activity on the eggshells did not differ significantly between groups, but Staphylococcus aureus, Micrococcus spp., Bordetella spp., and Chryseobacterium meningosepticum isolates were significantly affected by the propolis treatment. There were no significant differences between treatments for total hatchability, embryonic mortality, and chick body weight on the 1st, 7th, and 14th days of life. The total chick survivability during the first 2 wk was significantly higher in group P than in the other groups.

The results indicate that spraying hatching eggs with 15% propolis as a disinfectant can be recommended as a safe and natural sanitizer in place of formaldehyde, with no negative effect on quail chicks.

Saturday, April 21, 2018

Taiwanese Green Propolis Delays Progression of Type 2 Diabetes

Taiwanese Green Propolis Ethanol Extract Delays the Progression of Type 2 Diabetes Mellitus in Rats Treated with Streptozotocin/High-Fat Diet

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Nutrients. 2018 Apr 18;10(4)

Taiwanese green propolis ethanol extract (TGPE) is produced only in Taiwan and has a different composition from other types of propolis. TGPE is known for its anti-inflammation, anti-oxidation, and anti-microbial properties, but the effects and mechanisms of TGPE in the modulation of diabetes are unclear. In this study, we investigated the effects of TGPE on type 2 diabetes mellitus (T2DM) in a streptozotocin/high-fat-diet (STZ/HFD)-induced T2DM rat model.

The results revealed that TGPE delayed the development and progression of T2DM and reduced the severity of β-cell failure. TGPE also attenuated inflammation and reactive oxygen species ROS in the rats. Moreover, there were higher levels of oxidant cytokines, leptin, and adiponectin in the serum of the TGPE-treated group. Unlike Brazilian propolis, TGPE promoted hepatic genes PPAR-α and CYP7A1, which were related to lipid catabolism and removal. TGPE may thus delay the progression of T2DM through anti-inflammation effects, anti-oxidation effects, and balancing lipid metabolism.

It is suggested that TGPE can be a potential alternative medicine for T2DM.

Friday, April 20, 2018

Propolis Might Serve as Protective Agent Against Post-Surgical Adhesive Complications

Evaluation of the effects of Iranian propolis on the severity of post operational-induced peritoneal adhesion in rats

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Biomed Pharmacother. 2018 Mar;99:346-353

BACKGROUND:

Peritoneal adhesion is a major complication of surgery that can lead to serious problems such as bowel obstruction, pain, infertility and even mortality. Propolis is a honey bee product with anti-inflammatory and anti-oxidant activities that could potentially protect against adhesive surgical complications.

METHODS:

Forty 8-weeks-old rats (275 ± 25 g) were divided into five groups: normal group without any surgical procedure, and experimental groups treated with normal saline, 50 mg/kg, 100 mg/kg and 200 mg/kg of propolis. Peritoneal adhesions were examined macroscopically and also, the levels of inflammatory factors (IL-6, IL-1β and TNF-α), growth factors (TGF-β1 and VEGF) were evaluated in the study groups using ELISA. Biochemical indices of oxidative status including Nitric Oxide (NO), Malondialdehyde (MDA) and Glutathione (GSH) were also measured.

RESULTS:

Peritoneal adhesion scores, IL-1β, IL-6, TNF-α, TGF-β1, VEGF, NO, GSH and MDA levels were significantly different between the study groups (p < 0.001). Propolis treatment reduced peritoneal adhesion (p < 0.001), TNF-α (p < 0.001), IL-1β (p < 0.001), IL-6 (p < 0.001), TGF-β1 (p < 0.001), VEGF (p < 0.001), NO (p < 0.001) and MDA (p < 0.001), while GSH levels were increased (p < 0.001) compared with the vehicle group. Our results showed that higher dose of propolis was associated with significantly greater reductions in peritoneal adhesion (p < 0.001), TNF-α (p < 0.001), IL-1β (p < 0.001), IL-6 (p < 0.001), VEGF (p < 0.001), NO (p < 0.001) and MDA (p < 0.001), a greater increase in GSH levels (p < 0.001) compared with the lower dose.

CONCLUSIONS:

Propolis treatment can dose-dependently reduce peritoneal adhesion through its anti-inflammatory, anti-angiogenic and antioxidant properties. Therefore, propolis might serve as a protective agent against post-surgical adhesive complications.

Thursday, April 19, 2018

Manuka Honey Helps Treat Blemishes, Acne, Burns, and Rashes

Manuka Honey, a powerful remedy for your skin woes

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Telangana Today

Bloggers and Instagrammers swear by this dark honey and use it for their skin, teeth and for minor illnesses. And with summer playing havoc with our skin, this particular honey straight from the forests of New Zealand is a perfect foil for blemishes, tanning, burns and rashes.

Brazilian Red Propolis may Help Treat Leishmaniasis and Chagas Disease

Antitrypanosomal, antileishmanial and cytotoxic activities of Brazilian red propolis and plant resin of Dalbergia ecastophyllum (L) Taub

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Food Chem Toxicol. 2018 Apr 14

The treatment for leishmaniasis and Chagas disease can be hard and painful, such that many patients give up on the treatment.

In order to find an alternative path for the treatment of these diseases, researchers are using natural products to fight these parasites. The aim of this study was to evaluate the antiprotozoan and cytotoxic activities of red propolis samples collected from different Brazilian states and seasons whilst searching for possible activity differences.

We also compared the red propolis results with the ones obtained for the plant resin extract collected from Dalbergia ecastophyllum trees. The hydroethanolic red propolis extracts from Pernambuco and Alagoas, and the D. ecastaphyllum resin were evaluated regarding their antileishmanial, antitrypanosomal and cytotoxic activity.

All extracts showed antiprotozoan and cytotoxic activity. RP-PER showed to be more cytotoxic against protozoan parasites and fibroblast cells. All propolis extracts showed a higher cytotoxic activity when compared to resin extracts.

The propolis sample collected in Pernambuco during the rainy season killed the parasites with lower concentrations than the sample collected in the dry season. The IC50 observed against the parasites could be used without high fibroblast cell damage.

Wednesday, April 18, 2018

Propolis Boosts Tonsillectomy Wound Healing

Effect of Topical Propolis on Wound Healing Process After Tonsillectomy: Randomized Controlled Study

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Clin Exp Otorhinolaryngol

Objectives: 

The post-tonsillectomy pain and post-tonsillectomy hemorrhage are the two main problems after tonsillectomy. The aim of this study was to investigate the beneficial effects of water soluble ethanol extract propolis on post-tonsillectomy patient.

Methods: 

One hundred and thirty patients who underwent tonsillectomy or adenotonsillectomy were randomly divided into the control and propolis groups, each including 65 patients. The propolis group was applied with propolis orally immediately after surgery and by gargle. The pain scores were assessed on post-tonsillectomy 0, 1st, 2nd, 3rd, and 7th-10th day using a visual analogue scale score. Postoperative wound healing was evaluated by scoring pinkish membrane of tonsillar fossae on postoperative days 3 and 7-10. The incidence of post-tonsillectomy bleeding was examined in each group.

Results: 

Post-tonsillectomy pain was significantly less in propolis group compared to control group on postoperative days 3 and 7-10. Post-tonsillectomy hemorrhage was significantly less in the propolis group compared to the control group (P < 0.05). The wound healing was significantly better in the propolis group compared to the control group on postoperative day 7-10 (P = 0.002).

Conclusion: 

Applying the propolis to post-tonsillectomy wound showed beneficial effect of reducing postoperative pain, preventing hemorrhage, and accelerating of wound healing of tonsillar fossae.

Tuesday, April 17, 2018

Black Seed, Egyptian Honey Show Strong Antibacterial Effects Against Multidrug-Resistant Bacteria


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Isolation and identification of bacteria causing mastitis in small ruminants and their susceptibility to antibiotics, honey, essential oils, and plant extracts

Vet World. 2018 Mar;11(3):355-362

The present work aims to isolate and identify bacteria that cause mastitis in small ruminants and evaluates the antibacterial activity of some antibiotics, honey, essential oils, and plant extracts.

Materials and Methods:

A total of 289 milk samples were collected from udder secretions of sheep (n=189) and goat (n=100) from El-Fayoum, Beni-Suef, and Giza governorates. Screening subclinical mastitis (SCM) was done using California Mastitis Test (CMT); identification of the isolates was achieved using Gram's staining, hemolytic pattern, colony morphology, and biochemical tests using Analytical Profile Index.

Results:

On clinical examination, the incidence of clinical mastitis (CM) was found to be 5.88% and 7% in sheep and goat, respectively. On CMT, SCM was found to be 25 (13.23%) and 11 (10%) in sheep and goat, respectively. Bacteriological examination of all milk samples found the presence of Staphylococcus aureus (SA) (31.1%), coagulase-negative staphylococci (CNS) (19.5%), Escherichia coli (EC) (8.3%), Streptococcus spp. (5.6%), Klebsiella spp. (3.77%), and Pseudomonas spp. (1.89%), while no bacteria were cultured from 81.66% of the samples. Identification of 9 isolates of CNS was achieved by using API staph test to Staphylococcus epidermidis, Staphylococcus hominis, Staphylococcus cohnii, and Staphylococcus saprophyticus. The highest bacterial resistance was found in EC (67.14%) followed by Kp (45.28%) and SA (26.57%).

Conclusion:

Onion and black cumin essential oils followed by Egyptian honey showed strong antibacterial effects against multidrug-resistant bacteria. Finally, our study proved that Egyptian honey, onion, and black cumin essential oils have a marked strong antibacterial effect against bacteria isolated from small ruminant mastitis, but still further extensive studies are needed to discover the therapeutic properties of these plant extracts and honey.

Monday, April 16, 2018

Propolis and Bee Pollen Protect the Liver

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Influence of Dietary Supplementation of Propolis and Bee Pollen on Liver Pathology in Broiler Chickens

Animals (Basel). 2018 Apr 9;8(4). pii: E54

One of the major problems in intensive breeding of chickens is liver damage. The objective of this study was to determine the influence of dietary supplementation with propolis and bee pollen on liver pathology in broiler chickens. The study was conducted on 200 Ross 308 chickens equally distributed by sex that were divided into five groups. Throughout the whole study, the control group of chickens was fed with a basal diet, while the experimental groups of chickens were fed with the same diet further supplemented with propolis and bee pollen, each supplement given separately or in combination in a certain proportion.

The study showed that the clusters of lymphocytes in the hepatocytes, the vacuolar degeneration and necrosis of the liver parenchyma, the bile ductule hyperplasia, and the various forms of pathological changes in the liver arteries and veins were more frequent in liver tissue samples of the control group compared to liver tissue samples of all the experimental groups (p < 0.001). The study further showed that all the previously mentioned histopathological lesions of liver tissue were always more extensive in the liver tissue samples of the control group than in the liver tissue samples of all the experimental groups (p < 0.001). The supplementation of broiler chickens with propolis and/or bee pollen has a strong protective effect on liver pathology in broiler chickens.

Sunday, April 15, 2018

Bee Venom Used to Treat Arthritis, Amyotrophic Lateral Sclerosis (ALS), Parkinson's Disease, Alzheimer's Disease, Liver Fibrosis, Atherosclerosis

Bee venom therapy: Potential mechanisms and therapeutic applications

Toxicon. 2018 Apr 11. pii: S0041-0101(18)30145-4

Bee venom is a very complex mixture of natural products extracted from honey bee which contains various pharmaceutical properties such as peptides, enzymes, biologically active amines and nonpeptide components.

The use of bee venom into the specific points is so called bee venom therapy, which is widely used as a complementary and alternative therapy for 3000 years. A growing number of evidence has demonstrated the anti-inflammation, the anti-apoptosis, the anti-fibrosis and the anti-arthrosclerosis effects of bee venom therapy. With these pharmaceutical characteristics, bee venom therapy has also been used as the therapeutic method in treating rheumatoid arthritis, amyotrophic lateral sclerosis, Parkinson's disease, Alzheimer's disease, liver fibrosis, atherosclerosis, pain and others.

Although widely used, several cases still reported that bee venom therapy might cause some adverse effects, such as local itching or swelling. In this review, we summarize its potential mechanisms, therapeutic applications, and discuss its existing problems.

BUY Concentrated Propolis in Veggie Capsules