
Frontiers in Nutrition, Год журнала: 2023, Номер 10
Опубликована: Июнь 30, 2023
Background Fiber is a potential therapeutic to suppress microbiota-generated uremic molecules. This study aimed determine if fiber supplementation decreased serum levels of molecules through the modulation gut microbiota in adults undergoing hemodialysis. Methods A randomized, double-blinded, controlled crossover was conducted. Following 1-week baseline, participants consumed muffins with added pea hull (PHF) (15 g/d) and control daily, each for 4 weeks, separated by 4-week washout. Blood stool samples were collected per period. Serum p -cresyl sulfate (PCS), indoxyl (IS), phenylacetylglutamine (PAG), trimethylamine N -oxide (TMAO) quantified LC–MS/MS, fecal profiled 16S rRNA gene amplicon sequencing specific taxa interest qPCR. QIIME 2 sample-classifier used discover unique profiles due consumption PHF. Results Intake PHF contributed an additional 9 g/d dietary subjects’ diet compliance. No significant changes from baseline observed PCS, IS, PAG, or TMAO, relative quantification Akkermansia muciniphila, Faecalibacterium prausnitzii, Bifidobacterium, Roseburia, considered health-enhancing. Dietary protein intake IS ( r = −0.5, 0.05) slow transit form PCS 0.7, < 0.01) significantly correlated at baseline. periods not differentiated; however, using machine learning, most distinguishing composition during compared usual alone enriched Gemmiger , Collinsella, depleted Lactobacillus Ruminococcus Coprococcus, Mogibacteriaceae. Conclusion did mitigate targeted microbial-generated Given high cellulose content, which may be resistant fermentation, exert sufficient effects on modulate its activity dose consumed.
Язык: Английский