Omega-3 polyunsaturated fatty acids in treating non-alcoholic steatohepatitis: A randomized, double-blind, placebo-controlled trial
Abstract
BACKGROUND: & aims: Few clinical trials have addressed the potential benefits of omega-3 polyunsaturated fatty acids (PUFAs) on non-alcoholic steatohepatitis (NASH). We evaluated the effects of supplementation with omega-3 PUFAs from flaxseed and fish oils in patients with biopsy-proven NASH.
METHODS: Patients received three capsules daily, each containing 0.315 g of omega-3 PUFAs (64% alpha-linolenic [ALA], 16% eicosapentaenoic [EPA], and 21% docosahexaenoic [DHA] acids; n-3 group, n = 27) or mineral oil (placebo group, n = 23). Liver biopsies were evaluated histopathologically by the NASH activity score (NAS). Plasma levels of omega-3 PUFAs were assessed as a marker of intake at baseline and after 6 months of treatment. Secondary endpoints included changes in plasma biochemical markers of lipid metabolism, inflammation, and liver function at baseline and after 3 and 6 months of treatment.
RESULTS: At baseline, NAS was comparable between the groups (p = 0.98). After intervention with omega-3 PUFAs, plasma ALA and EPA levels increased (p ≤ 0.05). However in the placebo group, we also observed increased EPA and DHA (p ≤ 0.05), suggesting an off-protocol intake of PUFAs. NAS improvement/stabilization was correlated with increased ALA in the n-3 group (p = 0.02) and with increased EPA (p = 0.04) and DHA (p = 0.05) in the placebo group. Triglycerides were reduced after 3 months in the n-3 group compared to baseline (p = 0.01).
CONCLUSIONS: In NASH patients, the supplementation…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 27 participants or records.
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