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Liver hydrolysate improves depressive-like behavior in olfactory bulbectomized mice: Involvement of hippocampal
Osamu Nakagawasai1, Kotaro Yamada2, Takayo Odaira1
1Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
Abstract:
Recently, we has reported that AMPK activator has antidepressant effect. Previous our study suggested that liver hydrolysate (LH) activated adenosine monophosphate-activated protein kinase (AMPK) in periphery. However, the effect of LH on depression is unclear. Therefore, we examines whether LH has antidepressant effect on olfactory bulbectomized (OBX) mice. OBX mice showed depressive-like behavior in tail-suspension test and reduction of hippocampal neurogenesis, while these changes were reversed by LH. LH enhanced hippocampal phosphate-AMPK, brain-derived neurotrophic factor (BDNF) and phosphate-cyclic adenosine monophosphate response element-binding protein (CREB) in OBX mice. These data indicate that LH may produce antidepressant effects via hippocampal AMPK/BDNF/CREB signaling.
