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Age-induced alterations in mRNA expression of GPR54 in extra-hypothalamic brain regions of adult (age, 3-4 months) and old-age (age, 20-24 months) rats (n=4). Relative mRNA expression was normalized to internal reference gene GAPDH. Values are presented as means ± SEM. *P<0.05. GPR54, G protein-coupled receptor-54.
