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BCAA supplementation resulted in significantly decreased plasma NGF concentrations. The figure shows the fasting plasma NGF concentration before (baseline) and after (final) BCAA supplementation with BCAA and low-BCAA powder supplements. Data are mean ± SE (n = 12). P values were derived from ANOVA with the use of a 2-period crossover design, P < 0.01. BCAA, branched-chain amino acid; NGF, nerve growth factor.
