title: Wogonin Attenuates Hippocampal Neuronal Loss and Cognitive Dysfunction in Trimethyltin-Intoxicated Rats.
abstract: We examined whether wogonin (WO) improved hippocampal neuronal activity, behavioral alterations and cognitive impairment, in rats induced by administration of trimethyltin (TMT), an organotin compound that is neurotoxic to these animals. The ability of WO to improve cognitive efficacy in the TMT-induced neurodegenerative rats was investigated using a passive avoidance test, and the Morris water maze test, and using immunohistochemistry to detect components of the acetylcholinergic system, brain-derived neurotrophic factor (BDNF), and cAMP-response element-binding protein (CREB) expression. Rats injected with TMT showed impairments in learning and memory and daily administration of WO improved memory function, and reduced aggressive behavior. Administration of WO significantly alleviated the TMT-induced loss of cholinergic immunoreactivity and restored the hippocampal expression levels of BDNF and CREB proteins and their encoding mRNAs to normal levels. These findings suggest that WO might be useful as a new therapy for treatment of various neurodegenerative diseases.
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Bombi
authors.initials: B
authors.lastname: Lee
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Bongjun
authors.initials: B
authors.lastname: Sur
authors.affiliation: The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Seong-Guk
authors.initials: SG
authors.lastname: Cho
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Mijung
authors.initials: M
authors.lastname: Yeom
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.|The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Insop
authors.initials: I
authors.lastname: Shim
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Hyejung
authors.initials: H
authors.lastname: Lee
authors.affiliation: Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 02447, Republic of Korea.|The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.
authors.forename: Dae-Hyun
authors.initials: DH
authors.lastname: Hahm
keywords: Cholinergic neurons; Memory; Trimethyltin; Wogonin; cAMP-response element-binding protein