The primary objective of the study was to evaluate the effect of a hydrolyzed polysaccharide, Rice Bran Arabinoxylan Compound (RBAC), on biomarkers in adults with nonalcoholic fatty liver disease (NAFLD). A 90-day randomized double-blind placebo-controlled trial examined the effect of RBAC on complete blood count, liver enzymes, lipids, oxidative stress markers, cytokines, and growth factors. Twenty-three adults with NAFLD were enrolled and randomly assigned to one of the two study conditions (n = 12 RBAC and n = 11 placebo) and consumed 1 gram/day of either compound for 90 days. Subjects were assessed at baseline and 45 and 90 days. No adverse effects were reported. Alkaline phosphatase significantly decreased (-3.1%; SD = 19.9; F[1, 19] = 5.1, p=0.03) in the RBAC group compared to placebo. Percent monocytes (17.9%; SD = 18.3; F[1, 19] = 5.9, p=0.02) and percent eosinophils (30.6%; SD = 30.5; F[1, 19] = 12.3, p<0.01) increased in the RBAC group. IFN-γ (156%; SD = 131.8; F[1, 19] = 4.2, p=0.06) and IL-18 (29.1%; SD = 64; F[1, 19] = 5.3, p=0.03) increased in the RBAC group compared to placebo. Other improvements were noted for platelets, neutrophils, neutrophil-lymphocyte ratio, γ-glutamyl transferase, and 4-hydroxynonenal. RBAC had beneficial effects on several biomarkers that add to the known immunomodulatory activities of RBAC, which may be promising for people with NAFLD. This trial is registered with NCT02568787.
ASJC Scopus subject areas
- Complementary and alternative medicine