Supplementation with a β-glucan tablet has no effect on hyperlipidemia: a randomized, placebo-controlled clinical trial

高脂血症 安慰剂 医学 胆固醇 载脂蛋白B 内科学 葡聚糖 脂蛋白 内分泌学 血脂谱 高密度脂蛋白 胃肠病学 化学 生物化学 糖尿病 病理 替代医学
作者
Victoria Rioux-Labrecque,Mariève Cossette,Marianne Rufiange,Denis Bilodeau,Marie‐Claude Guertin,Jean‐Claude Tardif
出处
期刊:The American Journal of Clinical Nutrition [Elsevier BV]
卷期号:117 (6): 1232-1239 被引量:3
标识
DOI:10.1016/j.ajcnut.2023.04.012
摘要

Clinical evidence has suggested that the oat-soluble fiber β-glucan might have lipid-lowering effects.The present clinical trial was conducted to evaluate the efficacy and safety of high-medium molecular weight β-glucan on serum low-density lipoprotein (LDL) cholesterol and other lipid subfractions in subjects with hyperlipidemia.A randomized double-blinded trial was performed to assess the efficacy and safety of β-glucan supplementation in reducing lipid levels. Subjects with LDL cholesterol levels of >3.37 mmol/L when treated or not with a statin were randomly assigned to receive 1 of 3 daily doses of a tableted formulation of β-glucan (1.5, 3, or 6 g) or placebo. The primary efficacy end point was the change from baseline to 12 wk in LDL cholesterol. Secondary end points of lipid subfractions and safety were also assessed.A total of 263 subjects were enrolled; 66 subjects were assigned to each of the 3 β-glucan groups, and 65 subjects were assigned to the placebo group. The mean change from baseline to 12 wk in serum LDL cholesterol level was 0.08, 0.11, and -0.04 mmol/L in the 3 β-glucan groups (P = 0.23, 0.18, and 0.72 compared with the placebo group, respectively) and -0.10 mmol/L in the placebo group. The changes in total cholesterol, small LDL cholesterol subclass particle concentration, non-high-density lipoprotein cholesterol, apolipoprotein B, very low-density lipoprotein cholesterol, and high-sensitivity C-reactive protein were also not significant in the β-glucan groups when compared with the placebo group. Gastrointestinal adverse events were reported in 23.4%, 34.8%, and 66.7% of patients in the β-glucan groups and in 36.9% of patients in the placebo group (P < 0.0001 for the overall comparison across the 4 groups).In subjects with LDL cholesterol levels of >3.37 mmol/L, a tablet formulation of β-glucan was not effective in reducing LDL cholesterol concentration or other lipid subfractions when compared with a placebo. This trial was registered at clinicaltrials.gov as NCT03857256.
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