Saturday, October 15, 2016

Ulmo Honey and Vitamin C Combined Boosts Healing of Burn Wounds

Morphometric evaluation of wound healing in burns treated with Ulmo (Eucryphia cordifolia) honey alone and supplemented with ascorbic acid in guinea pig (Cavia porcellus)

Burns Trauma. 2016 Oct 3;4:25

BACKGROUND:

In the context of the search for cost-efficient treatments, Ulmo (Eurcyphia cordifolia) honey is an excellent alternative for treating burn wounds and could have a profound medical, social, and economic impact. Ascorbic acid is an enzymatic co-factor necessary for the synthesis of collagen and the proliferation of fibroblasts and has been proposed as a coadjuvant to strengthen the healing effects of honey. The aim of this work was to evaluate by morphometric studies the healing wounds caused by burns treated with Ulmo honey alone and supplemented with ascorbic acid in guinea pig (Cavia porcellus).

METHODS:

Fifteen guinea pigs were used and divided randomly into three groups: positive control (C+), experimental with unsupplemented honey (H), and experimental with supplemented honey (SH). A uniform deep burn covering 1 cm2 of the back skin was performed. The following indices were calculated for the morphometric study: superficial contraction index of the wound, deep contraction index of the wound, wound severity index, global healing index, global contraction index, and dermal proliferation area.

RESULTS:

The superficial contraction index of the wound, global healing index, global contraction, and dermal proliferation area values of the experimental with supplemented honey group were higher than the other groups (P < 0.05).

CONCLUSIONS:

According to these results, the combination of honey with an antioxidant (ascorbic acid) promotes an appropriate action to support the healing effect. This study showed that by supplementing the Ulmo honey with ascorbic acid, the healing and contraction effects can be strengthened in burn wounds compared to unsupplemented honey. These results were proof of the synergy between honey and ascorbic acid in healing burn wounds.

Friday, October 14, 2016

Turning Bee Pollen Into Bee Bread (Ambrosia, Bienenbrot, Perga)

The nutritional and bioactive aptitude of bee pollen for a solid-state fermentation process

Aptitud nutricional y bioactiva del polen de abeja para un proceso de fermentación en estado sólido

Journal of Apicultural Research

Volume 55, 2016 -  Issue 2

Interest in bioprocess-based products has increased in recent years due to their applications and advantages. Solid-state fermentation, as a part of this technology, has been used in different industries, including food. Among the products produced with this type of process, bee bread is one of the most important. Bee pollen is a valuable raw material because of its nutritional characteristics, in particular its protein (10–52%), lipid (.15–20%), dietary fiber (.3–20%), and mineral contents, as well as its bioactive qualities related to the presence of vitamins and antioxidants, which ultimately should allow micro-organism development during fermentation processes. Pollen grains possess, however, a natural protection that greatly limits nutrient transportation to the exterior of the grain. In fact, bees naturally induce bioprocesses in the interior of their hive to make pollen nutrients more bioavailable. The objective of this work is therefore to review the characteristics of bee pollen, and its aptitude as a raw material for a solid-state fermentation process.

El interés en los productos basados en bioprocesos se ha incrementado en los últimos años debido a sus aplicaciones y ventajas. La fermentación en estado sólido, como una parte de esta tecnología, se ha utilizado en diferentes industrias, incluyendo alimentos. Entre los productos producidos con este tipo de proceso, el pan de abejas es uno de los más importantes. El polen de abeja es una valiosa materia prima, debido a sus características nutricionales, en particular, su contenido de proteína (10–52%), lípidos (0.15–20%), fibra dietética (0.3–20%) y de minerales, así como su cualidades bioactivas relacionadas con la presencia de vitaminas y antioxidantes, que en última instancia, debería permitir el desarrollo de microorganismos durante los procesos de fermentación. Los granos de polen poseen, sin embargo, una protección natural que limita en gran medida el transporte de nutrientes al exterior del grano. De hecho, las abejas inducen naturalmente bioprocesos en el interior de la colmena para hacer nutrientes de polen más biodisponible. Por tanto, el objetivo de este trabajo es revisar las características del polen de abeja, y su aptitud como materia prima para un proceso de fermentación en estado sólido.

Thursday, October 13, 2016

Analysis of Major Protein Unique to Royal Jelly

Quantitative Analysis of Apisin, a Major Protein Unique to Royal Jelly

Evid Based Complement Alternat Med. 2016;2016:5040528

Apisin, a protein that is unique to royal jelly (RJ), is known to compose the greater part of the RJ proteins and to exist as a heterooligomer containing major royal jelly protein 1 and apisimin. However, few reports on the methods for quantifying apisin have been published.

Thus, we attempted to quantify apisin using HPLC, a widely used analytical technique, as described below. Isoelectric precipitation and size-exclusion chromatography were used to obtain the purified protein, which was identified as apisin by SDS-PAGE and LC-MS analyses. The purified apisin was lyophilized and then used to generate a calibration curve to quantify apisin in RJ. The apisin content was fairly constant (i.e., 3.93 to 4.67 w/w%) in natural RJ.

This study is the first to describe a simple, standardized method for quantifying apisin using HPLC and suggests that apisin can be used as a benchmark for future evaluations of RJ quality.

Wednesday, October 12, 2016

Honey Extracted by Press Process More Nutritional Than That Obtained by Centrifugation

Nutritional and mineral contents of honey extracted by centrifugation and pressed processes

Food Chem. 2017 Mar 1;218:237-241

In this study, wild honey samples extracted by two different methods (centrifugation and pressed processing) were characterized and compared based on their physicochemical, and nutritional properties, macro- and micro-mineral contents, and pollen counts.

Twelve colonies of Africanized Apis mellifera were used; six honey samples were obtained by centrifugation and six by honeycomb press. All physicochemical parameters of honey samples (moisture, pH, total acidity, ash, dry matter, and qualitative absence of hydroxymethylfurfural) were within the limits established by EU legislation, and all parameters in pressed honey were superior (p < 0.05).

Nutritional contents (total carbohydrates, total lipids, total proteins, flavonoids, and ascorbic acid) and minerals (K, Ca, Mg, Na, Fe, Li, Zn) were also higher in pressed honey. The quantity of pollen in pressed honey samples was 5.6-fold higher than in centrifuged samples. Pressed honey, can be marked as a differentiated product with a higher mineral content and several nutritional properties.

Tuesday, October 11, 2016

The Role of Bioengineered Honey in Wound Care

Nursing Times, October 10, 2016

In vitro and clinical studies of a new bioengineered medical-grade honey suggest it has a broad-spectrum antimicrobial effect in healing wounds

Monday, October 10, 2016

Propolis Helps Preserve Quality of Fresh-Cut Vegetables

Physical Treatments and Propolis Extract to Enhance Quality Attributes of Fresh-Cut Mixed Vegetables

Journal of Food Processing and Preservation, Early View

The impact of individual and combined application of propolis extract (PE) plus ultrasound (ULT) or thermal treatment (TT) on the microbiological, nutritional, physicochemical and sensory quality of fresh-cut mixed vegetables for soup (celery, leek and butternut squash) stored at 5C was studied. The use of PE slightly reduced microbial growth, inhibited the activity of browning related enzymes and improved quality attributes during refrigerated storage. Moreover, PE was effective to reduce ascorbic acid losses in the product maintaining its nutritional quality. TT greatly lowered the initial microbial load (1.7–2.2 log units) and also reduced microbial growth on mixed vegetables extending its microbiological shelf-life to 5 days. Furthermore, TT inactivated browning enzymes improving visual quality; however, ascorbic acid degradation adversely affected nutritional quality. Meanwhile, ULT caused a significant microbial inactivation, reduced browning enzyme activity and also the inhibitory effect on polyphenoloxidase enzyme was enhanced by combining ULT with PE.
Practical Applications

The use of natural agents, as propolis extract, along with physical treatments to preserve the quality of fresh-cut mixed vegetables for soup might be an interesting option to address the concerns of the consumer about the use of synthetic chemical antimicrobials potentially harmful for health.

Sunday, October 09, 2016

Rare Croatian Honey Analyzed for Antioxidant Capacity

First Report on Rare Unifloral Honey of Endemic Moltkia petraea (Tratt.) Griseb. from Croatia: Detailed Chemical Screening and Antioxidant Capacity

Chem Biodivers. 2016 Oct 8

Rare Moltkia petraea (Tratt.) Griseb. honey from Croatia was first time characterised. The spectrophotometric assays on CIE L*a*b*Cab *hab ° colour coordinates, total phenol content and antioxidant capacity (FRAP, CUPRAC, DPPH● and ABTS●+ assays) determined higher honey values generally close to dark honeys ranges. Headspace solid-phase microextraction (HS-SPME) on two fibres after GC-FID and GC-MS revealed the major compounds 2-phenylacetaldehyde (12.8%; 15.6%), benzaldehyde (11.1%; 10.0%), octane (9.3%; 7.6%), nonane, propan-2-one, pentan-2-one, pentanal and nonanal (4.9%; 14.5%). Ultrasonic solvent extraction (USE) mainly isolated non-specific higher molecular compounds characteristic of the comb environment. Targeted HLPC-DAD analysis of the honey determined higher concentration of phenylalanine (212.08 mg/kg) and lumichrome (16.25 mg/kg) along with tyrosine and kojic acid. The headspace composition (chemical fingerprint) and high concentration of lumichrome can be considered particular for M. petraea honey.

Saturday, October 08, 2016

Phenol-Rich Sweet Gel with Honey More Effective Than Antibiotic Against Pseudomonas aeruginosa

Phenol-Rich Compounds Sweet Gel: A Statistically More Effective Antibiotic than Cloxacillin Against Pseudomonas Aeruginosa

J Pharmacopuncture. 2016 Sep;19(3):246-252

OBJECTIVES:

The purpose of this study was to obtain a natural antibiotic from Phenol-rich compounds; for the dressing and the treatment of chronic wounds.

METHODS:

The Phenol-rich compound sweet gel was prepared by blending four natural herbal extracts, Acacia catechu (L.F.), Momia (Shilajit), Castanea sativa, and Ephedra sinica stapf, with combination of a sweet gel medium, including honey, maple saps, Phoenix dactylifera L. (date), pomegranate extract and Azadirachta indica gum as a stabilizer. The combinations were screened by using a well-diffusion assay with cloxacillin as a control. Pseudomonas spp. was tested with our novel antimicrobial compound. The zones of inhibition in agar culture were measured for each individual component and for the compound, and the results were compared with those of the control group which had been treated with cloxacillin. Data were expressed as means ± standard deviations. Quantitative analyses were performed using the paired t-test.

RESULTS:

The antibiotic effect of the Phenol-rich compound sweet gel was statistically shown to be more significant than that of cloxacillin against Pseudomonas aeruginosa (P < 0.05).

CONCLUSION:

Our novel approach to fighting the antibiotic resistance of Pseudomonas proved to be successful. The Phenol-rich compound sweet gel was found to be suitable for use as an alternative medicine and bioactive dressing material, for the treatment of patients with various types of wounds, including burns, venous leg ulcers, ulcers of various etiologies, leg ulcers on the feet of diabetic, unhealed graft sampling sites, abscesses, boils, surgical wounds, necrotic process, post-operative and neonatal wound infection, and should be considered as an alternative to the usual methods of cure.

Friday, October 07, 2016

Bee Venom Component May Help Treat Viral Myocarditis (VMC)

Melittin ameliorates CVB3-induced myocarditis via activation of the HDAC2-mediated GSK-3β/Nrf2/ARE signaling pathway

Biochem Biophys Res Commun. 2016 Sep 27

Viral myocarditis (VMC) is characterized as an inflammatory process of the myocardium and can be fatal in infants and children. Melittin is a major polypeptide in honey bee venom that has been traditionally used against inflammation. However, its effect on VMC and the underlying molecular mechanism has not been reported.

In this study, BALB/c mice were intraperitoneally injected with CVB3 to build a VMC model and treated with melittin. The results showed that melittin increased the mice's body weight and inhibited CVB3 replication. HE staining also showed that melittin alleviated myocardial injury in the VMC model. Flow cytometry showed that melittin inhibited myocardial cell apoptosis; in addition, real-time PCR showed that melittin decreased the expression of bax and caspase-3, and increased the expression of bcl-2. The results of echocardiographic examination showed that melittin improved cardiac function. Moreover, melittin decreased the activity of AST, CK, HBDH and LDH, and decreased the production of IL-1β, IL-6, TNF-α and MCP-1 in CVB3-induced myocardial tissues. Finally, we also found that melittin increased the expression of HDAC2 and activated the GSK-3β/Nrf2/ARE signaling pathway, whereas these changes were reversed by inhibition of HDAC2 in VMC model mice.

In conclusion, our results suggested that melittin ameliorates CVB3-induced myocarditis via activation of the HDAC2-mediated GSK-3β/Nrf2/ARE signaling pathway.

Thursday, October 06, 2016

Bee Venom Inhibits Bacterial Growth

Bee Venom (Apis Mellifera) an Effective Potential Alternative to Gentamicin for Specific Bacteria Strains: Bee Venom an Effective Potential for Bacteria

J Pharmacopuncture. 2016 Sep;19(3):225-230

OBJECTIVES:

Mellitine, a major component of bee venom (BV, Apis mellifera), is more active against gram positive than gram negative bacteria. Moreover, BV has been reported to have multiple effects, including antibacterial, antivirus, and anti-inflammation effects, in various types of cells. In addition, wasp venom has been reported to have antibacterial properties. The aim of this study was to evaluate the antibacterial activity of BV against selected gram positive and gram negative bacterial strains of medical importance.

METHODS:

This investigation was set up to evaluate the antibacterial activity of BV against six grams positive and gram negative bacteria, including Staphylococcus aureus (S. aureus), Salmonella typhimurium, Escherichia coli (E. coli) O157:H7, Pseudomonas aeruginosa, Burkholderia mallei and Burkholderia pseudomallei. Three concentrations of crude BV and standard antibiotic (gentamicin) disks as positive controls were tested by using the disc diffusion method.

RESULTS:

BV was found to have a significant antibacterial effect against E. coli, S. aureus, and Salmonella typhyimurium in all three concentrations tested. However, BV had no noticeable effect on other tested bacteria for any of the three doses tested.

CONCLUSION:

The results of the current study indicate that BV inhibits the growth and survival of bacterial strains and that BV can be used as a complementary antimicrobial agent against pathogenic bacteria. BV lacked the effective proteins necessary for it to exhibit antibacterial activity for some specific strains while being very effective against other specific strains. Thus, one may conclude, that Apis mellifera venom may have a specific mechanism that allows it to have an antibacterial effect on certain susceptible bacteria, but that mechanism is not well understood.

Wednesday, October 05, 2016

Brazilian Propolis May Help Treat Oral Infections

Effects of Brazilian Propolis on Dental Plaque and Gingiva in Patients with Oral Cleft Malformation Treated with Multibracket and Removable Appliances: A Comparative Study

Evid Based Complement Alternat Med. 2016;2016:2038407

Orthodontic appliances modify the local environment of the oral cavity, increase the accumulation of dental plaque, and affect the condition of the gingiva.

The aim of this study is assessment of Brazilian propolis toothpaste's effect on plaque index (PLI) and gingival index (GI) in patients with CL/CLP treated using orthodontic appliances in the 35-day study period. The study population included 96 patients of an Orthodontic Outpatient Clinic, ACSiMS in Bytom. All the patients participated in the active phase of orthodontic treatment using buccal multibracket appliances or removable appliances. During the first examination, each patient was randomly qualified to the propolis group or control group.

A statistically significant decrease in GI and PLI in the entire propolis group (P < 0.01) was shown during repeated examination. Insignificant change in GI was in the entire control group during the repeated examination compared to the baseline. Similar result was obtained in patients treated with multibracket and removable appliances. The orthodontic appliance type did not affect the final dental plaque amount and gingival condition in patients using the propolis toothpaste.

These results may be clinically useful to improve prevention and control oral infectious diseases during orthodontic treatment patients with oral cleft.

Tuesday, October 04, 2016

Bee Venom May Help Treat Dementia

Bee Venom Ameliorates Cognitive Dysfunction Caused by Neuroinflammation in an Animal Model of Vascular Dementia

Mol Neurobiol. 2016 Sep 29

Vascular dementia (VaD) is caused by the reduction of blood supply by vessel occlusion and is characterized by progressive cognitive decline. VaD incidence has been growing due to the aging population, placing greater strain on social and economic resources. However, the pathological mechanisms underlying VaD remain unclear. Many studies have used the bilateral common carotid artery occlusion (BCCAO) animal model to investigate potential therapeutics for VaD.

In this study, we investigated whether bee venom (BV) improves cognitive function and reduces neuroinflammation in the hippocampus of BCCAO animals.

Animals were randomly divided into three groups: a sham group (n = 15), BCCAO control group (n = 15), and BV-treated BCCAO group (n = 15). BCCAO animals were treated with 0.1 μg/g BV at ST36 ("Joksamli" acupoint) four times every other day. In order to investigate the effect of BV treatment on cognitive function, we performed a Y-maze test. In order to uncover any potential relationship between these results and neuroinflammation, we also performed Western blotting in the BCCAO group.

Animals that had been treated with BV showed an improved cognitive function and a reduced expression of neuroinflammatory proteins in the hippocampus, including Iba-1, TLR4, CD14, and TNF-α. Furthermore, we demonstrated that BV treatment increased pERK and BDNF in the hippocampus. The present study thus underlines the neuroprotective effect of BV treatment against BCCAO-induced cognitive impairment and neuroinflammation.

Our findings suggest that BV may be an effective complementary treatment for VaD, as it may improve cognitive function and attenuate neuroinflammation associated with dementia.

Monday, October 03, 2016

Manuka Honey: A Natural Antibacterial Agent?

Newsmax, September 29, 2016

Manuka honey, hailed by some as a new “superfood,” has been found to curb the growth of bacterial biofilms — thin layers of microbes that build up on surfaces, including plastic — according to new research.

The findings, published online in the Journal of Clinical Pathology, suggest the honey might hold promise as an antibacterial agent for medical devices, such as urinary catheters, which carry a high infection risk.

The use of honey as a health remedy dates back centuries, and the new study adds to a growing body of research suggesting that it may have potent antibacterial and anti-inflammatory properties.

For the new study, researchers from the University of Southampton, Southampton General Hospital, cultured strains of Escherichia coli and Proteus mirabilis bacteria — common causes of urinary tract infections — on plastic plates in the laboratory.

The results showed that the honey strongly inhibited the “stickiness” of the bacteria, and therefore blocked the development of a biofilm — even at very diluted concentrations...

Sunday, October 02, 2016

Bee-Sting Therapy Provides Relief to Egyptians

Xinhua, 10/1/2016

CAIRO, Oct. 1 (Xinhua) -- Dozens have gathered at Heba al-Sayeh's place in Egypt's Giza Governorate for bee-sting therapy to cure muscle problems, kidney failure and cancer.

Al-Sayeh, whose family originally works in beekeeping business, has turned two rooms of her house into "clinics" to treat patients free of charge with the stings of live bees, a practice known as apitherapy.

With a master degree in apitherapy, the doctor in her late thirties said that she started the treatment some 15 years ago as the first practitioner of apitherapy in Egypt.

Though denounced by many researchers for lacking sound medical evidences, apitherapy, which can date back to ancient Egypt, is a form of alternative treatment that has spread in recent decades to many countries.

Ibrahim, al-Sayeh's younger brother who learned the skill from her, was taking care of male patients in a two-room clinic at the ground floor, while a smaller room on the first floor was packed with women waiting for treatment by al-Sayeh herself...

Saturday, October 01, 2016

Honey Inhibits Biofilm Formation

Diluted honey inhibits biofilm formation: potential application in urinary catheter management?

J Clin Pathol. 2016 Sep 26. pii: jclinpath-2015-203546

Biofilms are ubiquitous and when mature have a complex structure of microcolonies in an extracellular polysaccharide and extracellular DNA matrix. Indwelling medical devices harbour biofilms which have been shown to cause infections and act as reservoirs for pathogens. Urinary catheters are often in place for considerable periods of time and are susceptible to both encrustation and biofilm formation. Strategies for minimising biofilm occurrence underpin an active research area in biomedicine. Manuka honey has, inter alia, well-established antibacterial properties. This study aims to assess the influence of honey on early biofilm formation in an established in vitro model.

METHODS:

An established model of early biofilm formation using static bacterial cultures in vinyl 96-well plates was used to grow Escherichia coli, strain ATC 25922 and Proteus mirabilis, strain 7002. Planktonic cells were removed and the residual biofilm was stained with crystal violet, which were subsequently eluted and quantified spectrophotometrically. Manuka honey (Unique Manuka Factor 15+) was added either with the bacteria or up to 72 hours after.

RESULTS:

Biofilms in this model was developed over 3 days, after which growth stalled. Mixed (1:1) cultures of E. coli and P. mirabilis grew slower than monocultures. In mixed cultures, honey gave a dose-dependent reduction in biofilm formation (between 3.3 and 16.7%w/v). At 72 hours, all concentrations inhibited maximally (p<0 .001="" 24="" 48="" adherent="" after="" also="" and="" application="" bacterial="" biomass="" cultures="" honey="" hours="" of="" p="" reduced="" the="" to="">
CONCLUSION:

Manuka honey at dilutions as low as 3.3% w/v in some protocols and at 10% or above in all protocols tested significantly inhibits bacterial attachment to a vinyl substrate and reduces further early biofilm development. No augmentation of growth over untreated controls was observed in any experiment.