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III: Pentecost | Wytch Hazel.Is Witch Hazel Good for Skin? the Benefits and Risks of Witch Hazel
Witch hazel: Uses, benefits, and side effects
The antioxidant and free-radical ability of polyphenols, such as HAMA, has been widely defined in various research efforts. We believe that the observed protective effect could be due to the radical scavenging ability of the tested WH extract.
Then we evaluated the possible protective effect of WH extract at the lower dose 0. We observed that WH addition had a protective effect on both strains, however the effect on strain LP was more pronounced, since living cells were identified until day 12 Figures 4 , 5. Many lactic acid bacteria can grow in the presence of oxygen but this results to the generation and accumulation of ROS, that will eventually introduce an oxidative stress When species belonging in the Lactobacillus family are introduced to oxidative and nutrient-depletion stress they switch to heterofermentation and heavily depend on NADH dehydrogenase to remove reactive oxygen species Based on our observations, we can suspect that eventually NADH dehydrogenase is overwhelmed and the accumulation of ROS within the cytoplasm results to cell death.
Phenolic phytochemicals are well defined scavengers of reactive oxygen species. We suspect that HAMA-enriched WH extract reduces the reactive oxygen species stress on the tested strains resulting to the observed protective effect.
Previous research suggested a potential mechanism for the protective effect of HAMA as it is said to have reacted with superoxide radicals, which in turn allowed dermal fibroblast cells to survive ROS exposure This was observed by the rapid disappearance after introduction of ROS.
In our research with lactic acid bacteria, it is important to note that even though no viable cells were observed with both strains after 6 days, the effect of WH was more pronounced with LP strain Figure 5.
This is a very interesting observation and could involve the unique physiology of the two strains. It would be interesting in the future to perform the same study using qPCR, since it is possible that in the LP strain we the control cells entered the VBNC viable but non-culturable state. This is the first evaluation of WH extract on the possible prebiotic or protective effect on lactic acid bacteria.
Our results suggest that although no clear prebiotic effect was observed, a significant protective effect resulted when the tested strains were subjected to oxidative and nutrient-depletion stress. Based on our observations, this effect could be strain dependent, but also it could be extract dependent. It is quite possible that different extracts with different phenolic compounds can lead to different effects. Further studies using evaluating specific metabolic changes are necessary to determine the possible mechanism of action for the observed effects.
The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation. MF performed the research and carried out the data analyses. RR and EA designed the experiments, overlooked the execution, and prepared the original draft of the manuscript. All authors contributed to the article and approved the submitted version.
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher. International society of sports nutrition position stand: probiotics.
J Int Soc Sports Nutr. Diff Clostridioides difficile. Atlanta: Centers for Disease Control and Prevention Google Scholar. The yin and yang of bacterial resilience in the human gut microbiota. J Mol Biol. Geography, ethnicity or subsistence-specific variations in human microbiome composition and diversity.
Front Microbiol. In-vitro inhibition of staphylococcal pathogenesis by witch-hazel and green tea extracts. Witch hazel significantly improves the efficacy of commercially available teat dips. Discovery of a quorum-sensing inhibitor of drug-resistant staphylococcal infections by structure-based virtual screening. Mol Pharmacol. Antibacterial activity and mode of action of ferulic and gallic acids against pathogenic bacteria. Microb Drug Resist. Food phenolics and lactic acid bacreria. Int J Food Microbiol.
A polyphenol-rich cranberry extract protects from diet-induced obesity, insulin resistance and intestinal inflammation in association with increased Akkermansia spp. In vitro evaluation of the prebiotic effect of red and white grape polyphenolic extracts. J Physiol Biochem. Pomegranate ellagitannins stimulate growth of gut bacteria in vitro: implications for prebiotic and metabolic effects. Phytochemicals, polyphenols, prebiotic effect of Ocimum sanctum , Zingiber officinale , Piper nigrum extracts.
J Herb Med. Comparison of the probiotic potential between Lactiplantibacillus plantarum isolated from kimchi and standard probiotic strains isolated from different sources. Probiotic Lactobacillus species strengthen intestinal barrier function and tight junction integrity in experimental necrotizing enterocolitis. J Probiotcs Health. Blueberry extract inhibits carbohydrate hydrolyzing enzymes and these inhibitory activities are not proanthocyanidin-dependent.
Determination of hamamelitannin, catechins and gallic acid in witch hazel bark, twig and leaf by HPLC. J Pharm Biomed Anal. The quorum sensing inhibitor hamamelitannin increases antibiotic susceptibility of Staphylococcus aureus biofilms by affecting peptidoglycan biosynthesis and eDNA release. Sci Rep. Initial payment breakdown. Shipping cost, delivery date, and order total including tax shown at checkout. Add to Cart. Enhancements you chose aren't available for this seller.
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