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Bifidobacterium longum fermentation products do not affect basal level of BDNF mRNA expression in neural cells. BDNF mRNA expression in human SH-SY5Y neuroblastoma cells exposed to serum from either CM (placebo) or B. longum-treated mice. Nicotine was used as a positive control. Each value represents the average of a duplicate sample from a single culture, horizontal bar indicates group mean. BDNF data were normalized to GAPDH expression.
