Twenty-Five Wei’er Tea Pills (TFP), a traditional Tibetan medicine, has shown to have a promising therapeutic effect in patients with Rheumatoid arthritis (RA), as well as being safe. Nonetheless, there have been limited pharmacological studies that have explored this therapeutic option. As gut microbiota has been proven to have a critical role in the pathogenesis of RA, this study aims to explore and reveal relevant ways by which TFP interacts with the chemical crosstalk between the gut microbiome and its host. 16S rRNA sequencing, combined with un-targeted metabolomics, were conducted on collagen-induced arthritis (CIA) rats. CIA model rats treated with TFP showed significant improvement in weight gain, pathological phenomena in joints, as well as decreased serum levels of TNF-α, IL-6 and increased level of IL-4 and IL-10. Significant dysfunction in the gut microbiome and alteration in serum metabolites were observed in CIA model rats, which were restored by TFP treatment. Coherence analysis indicated that TFP modulated the pathways of histidine metabolism, phenylalanine metabolism, alanine, aspartate, glutamate metabolism, amino sugar and nucleotide sugar metabolism owing to the abundances of Lactobacillus, Bacteroides, Prevotellaceae_UCG-001 and Christensenellaceae_R-7_group in the gut microflora. The corresponding metabolites involved L-histidine, histamine, phenylethylamine, asparagine, L-aspartic acid, D-fructose 1-phosphate, D-Mannose 6-phosphate, D-Glucose 6-phosphate, and Glucose 1-phosphate. In conclusion, this study reveals the ameliorative effects of TFP on RA through the chemical crosstalk that exists between the gut microbiota and its host, and also further enriches our understandings of the pathogenesis of RA.
Background: Although dietary patterns of highlander have been widely investigated, no study has explored the relationship between dietary patterns and physical examination indicators in high-altitude migrants. This cross-sectional study aimed to investigate the relationship between dietary and physiological indexes and explore the suitable dietary patterns of Tibetan migrants. Methods: 116 participants who had migrated to Tibet for > 2 years were recruited. Dietary patterns and physical examination indicators were assessed using a self-adjusted food frequency questionnaire and blood gas analysis, and six principal dietary patterns were obtained using principal component analysis. Results: The following results were obtained: adherence to a coarse grain dietary pattern was positively associated with mean corpuscular hemoglobin concentration (odds ratio (OR) = 1.077, p = 0.054) and negatively associated with urea level (OR = 0.601, p = 0.013). High meat dietary pattern is positively associated with creatinine level (OR = 1.050, p = 0.023) but negatively associated with glomerular filtration rate (OR = 0.960, p = 0.020). Adherence to the beverage dietary pattern was positively associated with uric acid levels (OR = 1.005, p = 0.044). High fruit intake is positively correlated with aspartate transaminase/alanine transaminase level (OR = 5.271, p = 0.005) and red blood cell count (OR = 4.805, p = 0.033). An unhealthy dietary pattern was positively correlated with lymphocyte counts (OR = 2.904, p = 0.011). Conclusions: In summary, a coarse grain-rich diet is suitable for Tibetan migrants. However, meat and fruit should not be consumed in excessive amounts, and sweetened drinks and alcohol should be avoided.
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