Ayurvedic Therapies to Target the Microbiome: Evidence and Possibilities.

Context: The microbiome is a constantly evolving entity, being influenced by diet, lifestyle, age, genetics, medication, and environment; keeping the microbiome in good health is a step toward better health for the body. Ayurveda emphasizes a healthy internal milieu that synchronizes with the circadian and seasonal rhythms, in addition to reacting to other stressors. Objective: The current review intended to provide an overview of Ayurvedic principles related to health and disease and their management and to briefly discuss the current understanding of the human microbiome and explore Ayurvedic herbs and therapies that have been studied for their effects on the microbiome. Design: The team included researchers in India and Canada. A Pubmed search was performed using the keywords Ayurveda therapies, Ayurvedic therapies, Gut microbiome, Panchakarma, Therapeutic purgation, Therapeutic emesis, medicated enema. Results: Research connecting Ayurvedic interventions and the gut microbiome is yet in a nascent stage. Several Ayurvedic herbs have been researched for their potential in altering the gut microbiome. Among the Ayurvedic therapies, virechana (therapeutic purgation) and basti (medicated enema) have been studied for their gut microbiome altering effects. However, the limited number of such studies prevents from drawing categorical conclusions currently, about the effects of Ayurvedic Panchakarma therapy on the human microbiome. Conclusions: Studying where and how the Ayurvedic herbs and therapies can exert their influence on the human microbiome provides a challenging yet novel opportunity and can help address multiple health and disease conditions.

Immunomodulatory effect of a proprietary polyherbal formulation on healthy participants: A single- blind, randomized, placebo- controlled, exploratory clinical study.

Context: Clinical study for immunity. Aims: The present study aimed to assess the effect of proprietary polyherbal formulation (PPHF), labelled as Kofol immunity tablets (KIT) on innate and adaptive immune responses in healthy individuals, on the backdrop of COVID-19 pandemic. Settings and Design: Single-blind, randomized, placebo-controlled, exploratory study in institutional setting. Materials and Methods: Post Ethics Committee permission, screened healthy individuals of either sex aged 18-35 years were randomized to PPHF/Placebo for 2 months. Major assessment variables included peak expiratory flow rate (PEFR), questionnaire-based immune status, perceived stress, and quality of life (QOL) with immune-specific cell counts (CD4+, CD8+), cytokines (interferon gamma [IFN-γ], tumor necrosis factor-alpha [TNF-α], interleukin 10 [IL-10]), and oxidative stress in red blood cells (RBCs) (malondialdehyde (MDA), glutathione peroxidase [GPx]), done at day 60. Statistical Analysis Used: Mean ± standard deviation and paired/unpaired t-test for parametric data analysis while median (range) and Wilcoxon Rank sum test/Mann-Whitney test for nonparametric data analysis, were done. Categorical data was analyzed using Chi-square test. GraphPad InStat software, version 9 was used with p < 0.05, as the level of statistical significance. Results: Of 52 recruited, 28 individuals completed the study. PPHF significantly increased PEFR, improved immune status along with QOL compared to baseline. It also decreased perceived stress from moderate and severe grade to mild. Serum IFN-γ levels remained almost constant post-PPHF treatment. PPHF significantly decreased MDA and increased GPx in RBCs. Significant decrease and increase in TNF-α and IL-10, respectively, were seen in PPHF group. The safety parameters post-PPHF treatment remained within normal reference ranges. Conclusions: PPHF is an efficacious and safe formulation with immunomodulatory potential.

Rectal administration of buttermilk processed with medicinal plants alters gut microbiome in obese individuals.

OBJECTIVE: To evaluate the effect of rectal administration of buttermilk processed with medicinal plants on gut microbial composition and thereby on weight in obese individuals. METHODS: With ethics committee approval, 16 obese individuals in the age group 20-50 years (BMI ≥30 kg/m2) were recruited who received a course of 15-enemas over 15-days. Of these, 1st, 8th and 15th enemas were of sesame-oil administered after food, while other enemas were of buttermilk processed with medicinal plants administered before food. Outcome variables viz. anthropometry, body composition, blood glucose, insulin and lipid profile were evaluated on day 0, 16 and 45. Also, microbial composition of buttermilk preparation and faecal samples of patients collected on day 0, 16 and 45 were studied with the help of 16S rRNA gene sequencing. RESULTS: The circumferential measures and skinfold-thickness showed a decrease on day 16, which remained lower as compared to baseline till day 45. A gradual decrease in blood-glucose was seen, which was statistically significant on day 45, while insulin levels increased on day 16 and fell to baseline on day 45. There was an overall increase in bacterial diversity on day 16 that settled back to its original composition by day 45. CONCLUSION: Our findings suggest that buttermilk administration per rectum is effective for a specific period and may have to be repeated for sustained benefits. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40200-021-00879-z.

Natural yeast flora of different varieties of grapes used for wine making in India.

The natural Saccharomyces and non-Saccharomyces yeast flora present on the grape berries significantly affect wine production. Six grape varieties, Bangalore blue, Zinfandel, Cabernet, Chenin Blanc, Sauvignon Blanc and Shiraz are being used in India for wine making. The yeast diversity was studied on the basis of morphological, colony, physiological characteristics and 5.8S-ITS sequencing of rDNA of the isolates. Eleven different species belonging to seven genera were identified as: Candida azyma, Candida quercitrusa, Debaryomyces hansenii, Hanseniaspora guilliermondii, Hanseniaspora viniae, Hanseniaspora uvarum, Issatchenkia orientalis, Issatchenkia terricola, Pichia membranifaciens, Saccharomyces cerevisiae and Zygoascus steatolyticus. H. guilliermondii was the predominant species while S. cerevisiae was observed occasionally in the six vine varieties. For the first time, C. azyma was isolated from Bangalore blue and Cabernet varieties grown in different localities. This association may be attributed to the change in cropping pattern from sugarcane to viticulture in the vine growing regions and the known association of C. azyma with sugarcane phylloplane. Further analysis of the indigenous strains and the qualitative and quantitative changes in the flora during fermentation will be useful to understand wine quality and to design preservation strategies to control wine spoilage.