PMID- 19203227 OWN - NLM STAT- MEDLINE DCOM- 20100922 LR - 20140408 IS - 1557-9042 (Electronic) IS - 0897-7151 (Linking) VI - 26 IP - 8 DP - 2009 Aug TI - Conditional knockout of brain-derived neurotrophic factor in the hippocampus increases death of adult-born immature neurons following traumatic brain injury. PG - 1325-35 AB - It has been reported that the hippocampus is particularly vulnerable to traumatic brain injury (TBI), the consequence of which results in hippocampal-dependent cognitive impairment. In the previous study we found that adult-born immature neurons in the hippocampal dentate gyrus are the most vulnerable cell type to moderate TBI insult. However, the molecular mechanisms that regulate the survival of adult-born immature neurons in the hippocampus following TBI are still not well understood. Here, we conditionally knocked out brain-derived neurotrophic factor (BDNF) in the hippocampal dentate gyrus and examined the death of adult-born immature neurons following moderate TBI. The results showed that the amount of adult-born immature neuron death in the hippocampal dentate gyrus significantly increased in the BDNF conditional knockout mice. This result suggests that BDNF is involved in regulating the survival of adult-born immature neurons in the hippocampus following TBI, and potentially might be a useful target for preventing the adult-born immature neurons from death following TBI. FAU - Gao, Xiang AU - Gao X AD - Spinal Cord and Brain Injury Research Group, Indiana University, Indianapolis, IN 46202, USA. FAU - Chen, Jinhui AU - Chen J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurotrauma JT - Journal of neurotrauma JID - 8811626 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Animals MH - Blotting, Western MH - Brain Injuries/genetics/metabolism/*pathology MH - Brain-Derived Neurotrophic Factor/*genetics/metabolism MH - Cell Death/*genetics MH - Hippocampus/metabolism/*pathology MH - Immunohistochemistry MH - Mice MH - Mice, Knockout MH - Neurogenesis/*physiology MH - Neurons/metabolism/*pathology EDAT- 2009/02/11 09:00 MHDA- 2010/09/24 06:00 CRDT- 2009/02/11 09:00 PHST- 2009/02/11 09:00 [entrez] PHST- 2009/02/11 09:00 [pubmed] PHST- 2010/09/24 06:00 [medline] AID - 10.1089/neu.2008-0744 [pii] AID - 10.1089/neu.2008.0744 [doi] PST - ppublish SO - J Neurotrauma. 2009 Aug;26(8):1325-35. doi: 10.1089/neu.2008.0744.