PMID- 17097239 OWN - NLM STAT- MEDLINE DCOM- 20070328 LR - 20061212 IS - 0306-4522 (Print) IS - 0306-4522 (Linking) VI - 144 IP - 2 DP - 2007 Jan 19 TI - Short-term exposure to an enriched environment enhances dendritic branching but not brain-derived neurotrophic factor expression in the hippocampus of rats with ventral subicular lesions. PG - 412-23 AB - Environmental enrichment promotes structural and behavioral plasticity in the adult brain. We have evaluated the efficacy of enriched environment on the dendritic morphology and brain-derived neurotrophic factor (BDNF) expression in the hippocampus of ventral subicular-lesioned rats. Bilateral ventral subicular lesion has significantly reduced the dendritic architecture and spine density of hippocampal pyramidal neurons. The lesioned rats exposed to enriched housing for 10 days showed a significant degree of morphological plasticity in terms of enhanced dendritic branching and spine density. However, the BDNF expression in the hippocampus remained unchanged following subicular lesion and following environmental enrichment. We suggest the participation of other neurotrophic factors in mediating the synaptic plasticity events following exposure to environmental enrichment in ventral subicular-lesioned rats. FAU - Bindu, B AU - Bindu B AD - Department of Neurophysiology, National Institute of Mental Health and Neuro Sciences, Hosur Road, Bangalore, India. FAU - Alladi, P A AU - Alladi PA FAU - Mansooralikhan, B M AU - Mansooralikhan BM FAU - Srikumar, B N AU - Srikumar BN FAU - Raju, T R AU - Raju TR FAU - Kutty, B M AU - Kutty BM LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20061109 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Animals MH - Blotting, Western/methods MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Dendrites/*pathology/ultrastructure MH - *Environment MH - Gene Expression Regulation/*physiology MH - *Hippocampus/injuries/metabolism/pathology MH - Immunohistochemistry/methods MH - Male MH - Pyramidal Cells/metabolism/ultrastructure MH - Rats MH - Rats, Wistar MH - Silver Staining/methods EDAT- 2006/11/14 09:00 MHDA- 2007/03/29 09:00 CRDT- 2006/11/14 09:00 PHST- 2006/04/26 00:00 [received] PHST- 2006/09/18 00:00 [revised] PHST- 2006/09/20 00:00 [accepted] PHST- 2006/11/14 09:00 [pubmed] PHST- 2007/03/29 09:00 [medline] PHST- 2006/11/14 09:00 [entrez] AID - S0306-4522(06)01299-1 [pii] AID - 10.1016/j.neuroscience.2006.09.057 [doi] PST - ppublish SO - Neuroscience. 2007 Jan 19;144(2):412-23. doi: 10.1016/j.neuroscience.2006.09.057. Epub 2006 Nov 9.