PMID- 22561867 OWN - NLM STAT- MEDLINE DCOM- 20120820 LR - 20190923 IS - 1738-8872 (Electronic) IS - 1017-7825 (Linking) VI - 22 IP - 5 DP - 2012 May TI - Effect of ginsenoside Re on depression- and anxiety-like behaviors and cognition memory deficit induced by repeated immobilization in rats. PG - 708-20 AB - In this study, we assessed the effects of ginsenoside Re (GRe) administration on repeated immobilization stressinduced behavioral alterations using the forced swimming test (FST), the elevated plus maze (EPM), and the active avoidance conditioning test (AAT). Additionally, we examined the effect of GRe on the central adrenergic system by observing changes in neuronal tyrosine hydroxylase (TH) immunoreactivity and brain-derived neurotrophic factor (BDNF) mRNA expression in the rat brain. Male rats received 10, 20, or 50 mg/kg GRe (i.p.) 30 min before daily exposures to repeated immobilization stress (2 h/day) for 10 days. Activation of the hypothalamic-pituitary-adrenal (HPA) axis in response to repeated immobilization was confirmed by measuring serum levels of corticosterone (CORT) and the expression of corticotrophin-releasing factor (CRF) in the hypothalamus. Repeated immobilization stress increased immobility in the FST and reduced openarm exploration in the EPM test. It also increased the probability of escape failures in the AAT test, indicating a reduced avoidance response. Daily administration of GRe during the repeated immobilization stress period significantly inhibited the stress-induced behavioral deficits in these behavioral tests. Administration of GRe also significantly blocked the increase in TH expression in the locus coeruleus (LC) and the decrease in BDNF mRNA expression in the hippocampus. Taken together, these findings indicate that administration of GRe prior to immobilization stress significantly improved helpless behaviors and cognitive impairment, possibly through modulating the central noradrenergic system in rats. These findings suggest that GRe may be a useful agent for treating complex symptoms of depression, anxiety, and cognitive impairment. FAU - Lee, Bombi AU - Lee B AD - Acupuncture and Meridian Science Research Center, College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Korea. FAU - Shim, Insop AU - Shim I FAU - Lee, Hyejung AU - Lee H FAU - Hahm, Dae-Hyun AU - Hahm DH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Korea (South) TA - J Microbiol Biotechnol JT - Journal of microbiology and biotechnology JID - 9431852 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Ginsenosides) RN - 0 (Plant Extracts) RN - 46F3R0BL3I (ginsenoside Re) RN - 9015-71-8 (Corticotropin-Releasing Hormone) SB - IM MH - Animals MH - Anxiety MH - Brain-Derived Neurotrophic Factor/genetics/metabolism MH - Cognition/*drug effects MH - Corticotropin-Releasing Hormone/genetics/metabolism MH - Depression MH - Disease Models, Animal MH - Ginsenosides/*administration & dosage MH - Humans MH - Immobilization MH - Male MH - Memory Disorders/*drug therapy/genetics/metabolism/*psychology MH - Plant Extracts/*administration & dosage MH - Rats MH - Rats, Sprague-Dawley EDAT- 2012/05/09 06:00 MHDA- 2012/08/21 06:00 CRDT- 2012/05/08 06:00 PHST- 2012/05/08 06:00 [entrez] PHST- 2012/05/09 06:00 [pubmed] PHST- 2012/08/21 06:00 [medline] AID - JMB022-05-19 [pii] AID - 10.4014/jmb.1112.12046 [doi] PST - ppublish SO - J Microbiol Biotechnol. 2012 May;22(5):708-20. doi: 10.4014/jmb.1112.12046.