Monday, April 22, 2019

Beeswax Helps Treat Moderate to Severe Rosacea

Natural Skin Care Products as Adjunctive to Prescription Therapy in Moderate to Severe Rosacea

J Drugs Dermatol. 2019 Feb 1;18(2):141-146.

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BACKGROUND:

Rosacea is characterized by irritation associated with erythema, telangiectasias and papules/pustules. Whole formula nature-based sensitive skin products are formulated to maintain skin barrier and appropriate hydration that can lead to soothing benefits.

OBJECTIVE:

To evaluate the efficacy and tolerability of a regimen consisting of a cleanser containing natural oils, beeswax, and witch hazel and day and night creams containing natural oils, glycerin, and botanical anti-inflammatories (NR); and a synthetic dermatologist-recommended regimen of cetyl alcohol, sodium lauryl sulphate-containing cleanser, and glycerin, polyisobutene-containing lotion (CR) in subjects with rosacea.

METHODS:

80 female subjects with rosacea who received 6 weeks of 0.75% metronidazole gel, were randomized to receive NR or CR, twice daily, for 4 weeks in conjunction with the gel. Blinded investigator global assessment of rosacea, investigator-rated, and subject-rated overall skin appearance was assessed using a 5-point scale (0=none, 4=severe) at baseline, 2 weeks, and 4 weeks. Noninvasive skin assessments for skin hydration and skin barrier function were made by corneometry and TEWL, respectively.

RESULTS:

NR resulted in improvement in investigator global assessment of rosacea measures at 4 weeks from baseline (erythema, 28%; telangiectasia, 26%; papules/pustules, 34%: P<0 .001="" 0.001="" 12="" 14="" 21="" 32="" 4.="" 4="" 8="" a="" and="" appearance="" at="" barrier="" baseline="" between="" both="" by="" clinically="" cr="" decreased="" differences="" either="" from="" function="" hydration="" improved="" improvement.="" in="" increased="" investigator="" issues="" measured="" no="" nr="" overall="" p="" regimen="" regimens="" reported="" respectively.="" resulted="" significant.="" significant="" skin="" statistically="" subjects="" the="" to="" tolerability="" treatments.="" treatments="" was="" week="" were="" while="" with="">
CONCLUSION:

NR was effective, well tolerated, and superior to CR in the management of rosacea, concomitantly treated with metronidazole. 

Sunday, April 21, 2019

Royal Jelly Prevents Damage to Kidneys

Royal jelly attenuates cadmium-induced nephrotoxicity in male mice

Sci Rep. 2019 Apr 9;9(1):5825

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Cadmium exposure induces nephrotoxicity by mediating oxidative stress, inflammation, and apoptosis. The purpose of this study was to examine the protective effect of royal jelly on Cd-induced nephrotoxicity. Adult male mice were distributed randomly into 4 clusters: untreated, royal jelly-treated (85 mg/kg, oral), CdCl2-treated (6.5 mg/kg, intraperitoneal), and pretreated with royal jelly (85 mg/kg) 2 h before CdCl2 injection (6.5 mg/kg, intraperitoneal) for seven consecutive days. Cd concentration in the renal tissue and absolute kidney weight of the Cd-treated mice were significantly higher than those of control group.

The levels of kidney function markers, kidney injury molecules-1 (KIM-1), metallothionein, lipid peroxidation, nitric oxide, tumor necrosis factor-α, interleukin-1β, and the apoptosis regulators Bax and caspases-3 also increased significantly in the renal tissue of Cd-treated mice, whereas the levels of glutathione, antioxidant enzyme activities, and the apoptosis inhibitor Bcl-2 were significantly reduced in the renal tissue of Cd-treated group. Histopathological studies showed vacuolation and congested glomeruli in the kidney tissue of Cd-treated mice. However, all aforementioned Cd-induced changes were attenuated by pretreatment with royal jelly.

We therefore concluded that royal jelly attenuated Cd-induced nephrotoxicity and it is suggested that this nephroprotective effect could be linked to its ability to promote the nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant responsive element (ARE) pathway.

Saturday, April 20, 2019

Honey Boosts Healing of Colon Anastomosis

Effect of a honey and arginine-glutamine-hydroxymethylbutyrate mixture on the healing of colon anastomosis in rats immunosuppressed with tacrolimus

Biotech Histochem. 2019 Apr 15:1-8

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We compared the effect of honey and a mixture of arginine-glutamine-hydroxymethylbutyrate (AGHMB) on healing of a descending colon anastomosis in rats that were immunosuppressed with tacrolimus (Tac).

Sprague-Dawley rats were divided into four groups: untreated control, Tac, Tac + honey and Tac + AGHMB. Colon resection and anastomosis were performed on day 14 and re-laparotomy was performed on the day 21 of the study. Anastomotic bursting pressure, macroscopic adhesion score, weekly body weight changes, histopathological features and immunohistochemical staining of TGF-β1 were determined for all groups. We found no significant difference in anastomotic bursting pressure among the experimental groups. We found significant weekly increases in body weight for the Tac + honey group.

We found no significant difference in the weekly body weight measurements for the Tac + AGHMB group. We found significant increases in TGF-β1 expression in the Tac + honey group compared to the control and Tac groups. No significant differences in inflammatory cell infiltration, fibroblast proliferation or collagen deposition were found between the Tac + honey and Tac + AGHMB groups; however, a significant difference in neovascularization between these groups was found. Neovascularization in the Tac + honey group was significantly greater than for the Tac + AGHMB group.

We found that both honey and the AGHMB mixture were beneficial for anastomotic wound healing in rats that were immunosuppressed using Tac.

Friday, April 19, 2019

How are raw honey and regular honey different?

Studies show that raw honey contains a variety of beneficial ingredients.

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Raw honey contains specific components that can offer health benefits. Pasteurization and other processes may remove or reduce some of these elements, which include:

  • bee pollen, which has antioxidant and anti-inflammatory properties
  • bee propolis, a glue-like substance that helps keep the hive together
  • certain vitamins and minerals
  • enzymes
  • amino acids
  • antioxidants...

Thursday, April 18, 2019

Honey-Impregnated Dressings Significantly Reduced Healing Time of Non-Healing Wounds in Home Care Setting

Applying honey dressings to non-healing wounds in elderly persons receiving home care

Journal of Tissue Viability
Available online 13 April 2019

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Highlights

• Honey is one of naturally occurring remedies that can be used in the treatment of non-healing wounds.
• Honey-impregnated dressings significantly reduced the healing time of non-healing wounds in home care setting.
• Honey-impregnated dressings reduced wound pain intensity in elderly.

Objective

The study aimed to determine the clinical effectiveness of honey dressings in the management of non-healing wounds in elderly persons receiving home care.

Material and methods

Design: a prospective interventional study. The sample comprised 40 Czech home care clients (aged over 65 years) with non-healing wounds who were randomly assigned to two groups. Wounds were treated with honey (intervention group) or conventional (controls) dressings. Each wound was studied for three months. A detailed description of a wound (location, size, wound bed, edges, amount of exudate, odor, adjacent skin) were recorded. Wounds were assessed with the Wound Healing Continuum and pain intensity with the Visual Analog Scale.

Results

Over the 3-month period, 16 (80%) individuals in the intervention group had their wounds completely healed, as compared with only six (30%) controls. There was no statistically significant difference in wound size between the groups on Day 1 (p = 0.1801). Ninety days later, the difference in wound size between the groups was statistically significant (p = 0.0041). There was a statistically significant difference in pain intensity between the two groups (p = 0.0007), with higher pain scores being indicated by controls.

Conclusion

The study results showed that the application of honey dressings to non-healing wounds resulted in faster healing, wound size reduction and lower pain intensity.

Wednesday, April 17, 2019

Red Propolis Alagoas Shows Significant Antimicrobial Activity

Braz. J. Biol. vol.79 no.3 São Carlos July/Sept. 2019

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The study aimed to evaluate the antimicrobial activity, antioxidant, toxicity and phytochemical screening of the Red Propolis Alagoas. Antimicrobial activity was evaluated by disk diffusion method. Determination of antioxidant activity was performed using the DPPH assay (1.1-diphenyl-2-picrylhydrazyl), FTC (ferric thiocyanate) and determination of phenolic compounds by Follin method. Toxicity was performed by the method of Artemia salina and cytotoxicity by MTT method. The phytochemical screening for the detection of allelochemicals was performed. The ethanol extract of propolis of Alagoas showed significant results for antimicrobial activity, and inhibitory activity for Staphylococcus aureus and Candida krusei.

The antioxidant activity of the FTC method was 80% to 108.3% hydrogen peroxide kidnapping, the DPPH method showed an EC50 3.97 mg/mL, the content of total phenolic compounds was determined by calibration curve gallic acid, resulting from 0.0005 mg/100 g of gallic acid equivalent. The extract was non-toxic by A. salina method. The propolis extract showed high activity with a higher percentage than 75% inhibition of tumor cells OVCAR-8, SF-295 and HCT116. Chemical constituents were observed as flavonones, xanthones, flavonols, and Chalcones Auronas, Catechins and leucoanthocyanidins. It is concluded that the extract can be tested is considered a potential source of bioactive metabolites.

Tuesday, April 16, 2019

South African Propolis Boosts Antimicrobial Activity, Minimizes Cell Damage

The new buzz: Investigating the antimicrobial interactions between bioactive compounds found in South African propolis

J Ethnopharmacol. 2019 Apr 9:111867

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ETHNOPHARMACOLOGICAL RELEVANCE:

Propolis, a resinous substance produced by the Apis mellifera bee, contains a number of flavonoids sourced from plants found in the surrounding region. Whilst bees use this substance to seal off and protect the beehive, humans have used propolis therapeutically for centuries, making use of its antibacterial, antiseptic, antipyretic and wound healing properties, among others. South African propolis is rich in the flavonoids pinocembrin, galangin, and chrysin and very little previous research has been conducted on the antimicrobial effects of these compounds.

AIM OF THE STUDY:

To obtain an understanding of the antimicrobial activity of the compounds pinocembrin, galangin, and chrysin, both independently and in combination.

MATERIALS AND METHODS:

The compounds pinocembrin, galangin and chrysin were investigated for interactive antimicrobial activity by determining the minimum inhibitory concentrations (MIC), minimum bactericidal concentrations (MBC), anti-quorum sensing activity, biofilm studies, and cytotoxicity studies (brine shrimp lethality assay).

RESULTS:

Minimum inhibitory concentration results demonstrated that combinations of compounds showed better inhibitory activity than single compounds. When the flavonoids were tested in combination using the MIC assay, synergy was noted for 22% of the 1:1 ratio combinations and for 66% of the triple 1:1:1 ratio combinations. Similarly, MBC results showed bactericidal activity from selected combinations, while the compounds on their own demonstrated no cidal activity. Quorum sensing studies showed that compound combinations are more effective at inhibiting bacterial communication than the individual compounds. Biofilm assays showed that the highest percentage inhibition was observed for the triple combination against E. coli at 24 h. Finally, brine shrimp lethality studies revealed that combinations of the three compounds had reduced cytotoxicity when compared to the individual compounds.

CONCLUSION:

The results obtained in this study demonstrate that the compounds found in South African propolis work synergistically to achieve an optimal antimicrobial effect, whilst simultaneously minimizing cytotoxicity.

Monday, April 15, 2019

Propolis Protects the Heart From Damage Caused by Prolonged Hypothermic Preservation

Myocardial protection by propolis during prolonged hypothermic preservation.

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Cryobiology. 2019 Apr 11. pii: S0011-2240(19)30009-4

Oxidative stress is involved in the pathogenesis of ischemia-reperfusion during myocardial transplantation. Therefore, graft preservation solutions may be improved by supplementation with antioxidants to minimize graft dysfunction caused by cold ischemic injury. Propolis is a polyphenol-rich substance which has an important antioxidant activity. The protective effect of propolis against oxidative stress induced by prolonged cold preservation of heart was investigated. Mice were subjected to a hypothermic model of ischemia in which hearts were preserved for 24 h at 4 °C in Krebs-Hensleit (KH) solution in the absence or presence of propolis concentrations (50, 150 and 250 μg/ml). Levels of released Lactate dehydrogenase (LDH), Creatine phosphokinase (CPK) and Troponine-I (Trop I) were assessed in the preservation solution and histological assessement of heart ischemia injuries was performed. Oxidative stress biomarkers malondialdehyde (MDA) and advanced oxidation protein products (AOPP) and antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) were assessed in cardiac tissue. Mitochondria were isolated from stored hearts and production of reactive oxygen species (ROS) was tested. Propolis supplementation protected efficiently hearts during preservation by reducing significantly levels of lipids and proteins oxidation and restoring activities of antioxidant enzymes. Also, propolis preserved tissue integrity altered by hypothermic ischemia in a concentration-dependent manner. Propolis reduced significantly the rate of H2O2 produced by mitochondrial respiration, the best antioxidant effect being obtained at the highest propolis concentration (250 μg/ml). Algerian propolis is a non-temperature sensitive scavenger that protects heart from oxidative damage induced by prolonged hypothermic ischemia.

Friday, April 12, 2019

Royal Jelly May Help Treat Diabetes


Effects of Royal jelly on metabolic variables in diabetes mellitus: A systematic review.

Complement Ther Med. 2019 Apr;43:20-27

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Diabetes mellitus is one of the most common endocrine disorders in the world. This systematic review was conducted with focus on the current knowledge on the effect of royal jelly on metabolic variables in diabetes mellitus.

PubMed, Scopus, Embase, ProQuest and Google Scholar databases were searched from inception until June 2018. All clinical trials and animal studies that evaluated the effects of royal jelly on diabetes mellitus, and were published in English-language journals were eligible. Studies that provided insufficient outcomes were excluded. Out of 522 articles found in the search, only twelve articles were eligible for analysis. Seven studies showed a significant reduction in FBS, and one reported HbA1c decrease following royal jelly supplementation.

Although royal jelly supplementation resulted in significant reductions in HOM A-I R in three studies, the findings on insulin levels were controversial. In addition, royal jelly substantially improved serum levels of triglycerides, cholesterol, HDL, LDL, VLDL and Apo-A1 in diabetes mellitus. In addition, royal jelly resulted in a decrease oxidative stress indicators and increase antioxidant enzymes levels.

In conclusion, royal jelly could improve glycemic status, lipid profiles and oxidative stress in diabetes mellitus. However, exploring the underlying mechanisms warrants further studies.

Thursday, April 11, 2019

Honey Shows Bacteriostatic and Bactericidal Activity Against MRSA - Methicillin-Resistant Staphylococcus aureus

Antibacterial Activity of Honey against Methicillin-Resistant Staphylococcus aureus: A Laboratory-Based Experimental Study

International Journal of Microbiology
Volume 2019, Article ID 7686130, 9 pages

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Background. Antimicrobial drug resistance is one of the serious issues this world is facing nowadays, and increased cost of searching for effective antimicrobial agents and the decreased rate of new drug discovery have made the situation increasingly worrisome.

Objective. The aim of this study is to determine in vitro antibacterial activity of honey against methicillin-resistant Staphylococcus aureus isolates from wound infection.

Methods. An experimental study was conducted from May to November 2017. Methicillin resistance was detected using cefoxitin (30 μg) and oxacillin (1 μg) antibiotic discs. Different concentrations of honey (25–100% v/v) were tested against each type of clinical isolates obtained from wound infection. A preliminary sensitivity test was done to all types of honey by using disk diffusion while minimum inhibitory concentration and minimum bactericidal concentration were determined for the most potent honey by the broth dilution technique. All statistical analysis was performed by using Statistical Package for the Social Sciences version 20.

Results. In this study, 36 bacterial isolates were recovered from 50 specimens, showing an isolation rate of 72%. The predominant bacteria isolated from the infected wounds were Staphylococcus aureus (15, 41.7%). Among identified Staphylococcus aureus, methicillin resistance accounts for 10 isolates (27.8%). All isolates showed a high frequency of resistance to tetracycline. Four collected honey varieties exhibited antibacterial activity, while the strongest inhibitory activity was demonstrated by honey-2 at 75% v/v. The mean MIC and MBC of honey-2 ranged from 9.38 to 37.5% v/v.

Conclusions. Tested honey has both a bacteriostatic and bactericidal activity. Among the tested honey, “honey-2” had high antibacterial potency than others.

Wednesday, April 10, 2019

Dietary Propolis Supplementation Boosts Egg Production


Propolis alleviates the negative effects of heat stress on egg production, egg quality, physiological and immunological aspects of laying Japanese quail.

PLoS One. 2019 Apr 9;14(4):e0214839

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The present work was carried out to investigate the effects of dietary propolis supplementation to laying Japanese quail (Coturnix coturnix japonica) on egg production, egg quality, physiological and immunological aspects under heat stress conditions. A total of 200, 21-day-old, Japanese quail females were distributed equally into standard wired cages in two identical environmentally-controlled rooms (10 cages per room, 10 birds per cage). From 29-70 d of age, the quail birds in the first room remained at a normal temperature of 24°C (C group), whereas the quail birds in the second room were kept under heat stress at 35°C (HS group).

Each group was further assigned to 2 propolis subgroups (5 cages per subgroup); one of them received a basal diet without propolis supplementation (-PR subgroup), while, the other received 1 g propolis/ kg basal diet (+PR subgroup). In the present study, performance and egg production of laying quail were significantly (P < 0.001) impaired by HS treatment and improved by the PR treatment. Similarly, the negative and positive effects of HS and PR, respectively, were appeared on the egg shell thickness and yolk index. Stress indicators in laying quail were significantly (P < 0.001) increased by HS, while, PR significantly (P < 0.05) moderated these levels in the HS+PR group when compared to the HS-PR quail group.

In addition to the positive impact of PR on the plasma levels of calcium, phosphorus, and albumin, it also normalized the plasma levels of alanine aminotransferase and cholesterol in the heat-stressed quail birds. Moreover, the quail birds in the HS groups expressed lower immunological aspects than those in the C group, while, the addition of propolis to the diets enhanced the immune status of laying quail birds under HS conditions.

These results strongly suggest that dietary propolis supplementation could be a successful attempt to maintain the performance and egg production of laying Japanese quail at convenient levels under heat stress conditions.

Tuesday, April 09, 2019

Pinocembrin, a Flavanone Found in Honey, Exhibited Strongest Inhibition of Zika Virus Replication


Antiviral activity of pinocembrin against Zika virus replication.

Antiviral Res. 2019 Apr 5. pii: S0166-3542(18)30601-6

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Zika virus (ZIKV) is a mosquito-borne virus that has garnered a lot of attention in recent years, due to the explosive epidemic from 2014 to 2016. Since its introduction in the Americas in late 2014, ZIKV has spread at an unprecedented rate and scale throughout the world and infected millions of people. Its infection has also been associated with severe neurological disorders like Guillain-Barré syndrome and microcephaly in fetuses. Despite these, there is currently no approved antiviral against ZIKV. In this study, an immunofluorescence-based high throughput screen was conducted on a library of 483 flavonoid derivatives to identify potential anti-ZIKV compounds. Flavonoids, which are natural polyphenolic compounds found in plants, represent an attractive source of antivirals due to their abundance in food and expected low toxicity. From the primary screen, three hits were selected for validation by cell viability and viral plaque reduction assays. Pinocembrin, a flavanone found in honey, tea and red wine, was chosen for downstream studies as it exhibited the strongest inhibition of ZIKV infection in human placental JEG-3 cells (IC50 = 17.4 μM). Time-course studies revealed that pinocembrin acts on post-entry process(es) of the ZIKV replication cycle. Furthermore, pinocembrin inhibits viral RNA production and envelope protein synthesis based on quantitative reverse transcription-PCR (qRT-PCR) and Western blot analyses. This study has demonstrated for the first time the in vitro anti-ZIKV activity of pinocembrin.

Monday, April 08, 2019

Propolis Soothes a Sore Throat (antiviral, antibacterial, antifungal, anti-inflammatory, antioxidant)


This Might Be The Fastest All-Natural Way To Soothe A Sore Throat

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Bees create propolis by gathering the sticky resin from tree buds and bark, which gets combined with enzymes in their mouths to yield a substance that's antiviral, antibacterial, antifungal, anti-inflammatory, and an antioxidant. This propolis is then applied as a varnish on the cells of the honeycomb to help seal up cracks and create doorways, all the while helping prevent disease.

"It contains a whole variety of health benefits," says Dr. Shah. "There are hundreds of natural antibacterial compounds, amino acids, and polyphenols. It's most significantly known in history for its infection-healing abilities, and Egyptians even used it during mummification. It has a subtle numbing quality as well."

So it makes sense that a bee propolis throat spray can, in fact, ease pain and possibly even help fight the viral infection causing it. Even better, there are several high-quality options to choose from. Here, check out a few of our favorites, some of which contain additional anti-inflammatory herbs, and all of which are small enough to take on a plane with your carry-on luggage.

Sunday, April 07, 2019

Propolis May Help Treat Type 2 Diabetes (Glycemic Control)


The efficacy of propolis on markers of glycemic control in adults with type 2 diabetes mellitus: A systematic review and meta-analysis.

Phytother Res. 2019 Apr 5

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BACKGROUND AND OBJECTIVES:

The impetus for the current study was to evaluate the efficacy of propolis supplementation on markers of glycemic status in adults with type 2 diabetes mellitus (T2DM).

METHODS:

A comprehensive search was conducted in PubMed, Scopus, Cochrane Library, Web of Science, and Google Scholar up to August 2018, identifying randomized controlled trials investigating the effect of propolis supplementation on glycemic markers in adults with T2DM. Cochrane Collaboration tool was used to evaluate the risk of bias assessment. A random-effects model was applied in the meta-analysis to compensate for potential heterogeneity among the included studies.

RESULTS:

Six randomized controlled trials comprising 373 participants were included in the systematic review and meta-analysis. The results of the meta-analysis revealed significant reductions in fasting plasma glucose (-13.51 mg/dl; 95% CI [-24.98, -2.04]) and hemoglobin A1C (-0.52%; 95% CI [-0.94, -0.10]) concentrations following propolis supplementation. However, no significant lowering effect was observed in fasting insulin levels (-0.53 pmol/L; 95% CI [-1.69, 0.63]) or homeostasis model assessment of insulin resistance (-0.543; 95% CI [-1.72, 0.64]).

CONCLUSION:

This systematic review and meta-analysis suggested that propolis supplementation may be effective in controlling glycemic levels for T2DM patients. Further studies are needed to confirm these results.

Saturday, April 06, 2019

Syrian Honey Bee Venom Shows Antioxidant, Antibacterial, Anti-Cancer Activity


First Characterization of The Venom from Apis mellifera syriaca, A Honeybee from The Middle East Region

Toxins (Basel). 2019 Mar 30;11(4)

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Bee venom is a mixture of several components with proven therapeutic benefits, among which are anti-inflammatory, analgesic, and various cardiovascular conditions. In this work, we analyzed for the first time the proteomic content and biological properties of the crude venom from Apis mellifera syriaca, a honeybee from the Middle East region.

Using high-performance liquid chromatography-tandem mass spectrometry, we evidence the venom contains phospholipase A2, hyaluronidase, mast cell-degranulating peptide, adolapin, apamin, and melittin. The latter was purified by solid phase extraction method (SPE) and tested in parallel with crude venom for biological activities. Precisely, crude venom-but not melittin-exhibited antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa strains. Alongside, hemolytic activity was observed in human blood subjected to the venom at high doses.

A. mellifera syriaca venom displayed antioxidant activities, and not surprisingly, PLA2 catalytic activity. Eventually, the venom proved to exert antiproliferative effects against MCF-7 and 3T3 cancer cells lines. This first report of a new bee venom opens new avenues for therapeutic uses of bee venoms.