Effects of Probiotics (P. Pentosaceus, L. Lactis or L. Helveticus) in Patients With Nonalcoholic Hepatitis

Detailed Summary

A study for evaluating the improvement effect on Metabolic dysfunction-associated steatotic liver disease (MASLD) of probiotics Metabolic dysfunction-associated steatotic liver disease (MASLD) is associated with dysbiosis of the gut microbiota and altered host metabolic homeostasis. Probiotics have been proposed as a potential therapeutic strategy to modulate gut microbial composition and improve metabolic and hepatic outcomes in MASLD; however, clinical evidence regarding next-generation probiotic strains remains limited. This study was designed to evaluate the effects of three next-generation probiotic strains-Lactobacillus delbrueckii subsp. lactis (LL001), Lactobacillus helveticus (LH001), and Pediococcus pentosaceus KID7 (PPKID7)-on liver function parameters and gut microbiome composition in patients with MASLD. We conducted a randomized, double-blind, placebo-controlled, parallel-group clinical trial. A total of 110 adult patients diagnosed with MASLD were screened for eligibility. Eligible participants were randomly assigned to receive one of the three probiotic formulations (3 capsules per day, total 9×10⁹ CFU) or placebo for 8 weeks. All participants received concomitant silymarin during the intervention period. Clinical assessments, serum samples, and stool samples were collected at baseline and at the end of the intervention. Liver function parameters were predefined as the primary outcome measure. Secondary outcomes included changes in anthropometric parameters, serum metabolic markers, gut microbiota composition assessed by 16S rRNA gene sequencing, and lipidomic profiles derived from serum and fecal samples. Compliance was monitored throughout the study period. The study protocol was approved by the institutional review board, and written informed consent was obtained from all participants prior to enrollment.

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