PMID- 11584927 OWN - NLM STAT- MEDLINE DCOM- 20020204 LR - 20220309 IS - 0735-7044 (Print) IS - 0735-7044 (Linking) VI - 115 IP - 5 DP - 2001 Oct TI - Performance of heterozygous brain-derived neurotrophic factor knockout mice on behavioral analogues of anxiety, nociception, and depression. PG - 1145-53 AB - Evidence suggests that brain-derived neurotrophic factor (BDNF) may be important in the pathophysiology of depression, in addition to its role as a neurotrophic factor for sensory neurons. The authors conducted a series of experiments examining the behavioral profile of BDNF heterozygous knockout and wild-type mice. The heterozygous and wild-type mice did not differ on measures of activity, exploration, or hedonic sensitivity, or in the forced swim test. When assessed in the learned helplessness paradigm, heterozygous mice were slower to escape after training than were wild-type mice (p = .02). This effect may be accounted for by the fact that these mice demonstrate a reduced sensitivity to centrally mediated pain, apparent on the hot plate and Formalin injection tests of nociception. Overall, heterozygous mice were not more likely to display anxious or depressive-like behaviors and, consequently, may not constitute a murine model of genetic vulnerability to mood and anxiety disorders. FAU - MacQueen, G M AU - MacQueen GM AD - Department of Psychiatry and Behavioral Neurosciences, McMaster University Medical Centre, Hamilton, Ontario, Canada. macqueng@mcmaster.ca FAU - Ramakrishnan, K AU - Ramakrishnan K FAU - Croll, S D AU - Croll SD FAU - Siuciak, J A AU - Siuciak JA FAU - Yu, G AU - Yu G FAU - Young, L T AU - Young LT FAU - Fahnestock, M AU - Fahnestock M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Behav Neurosci JT - Behavioral neuroscience JID - 8302411 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Affect/*physiology MH - Animals MH - Arousal/*genetics/physiology MH - Avoidance Learning/physiology MH - Brain-Derived Neurotrophic Factor/genetics/physiology MH - Escape Reaction/physiology MH - Exploratory Behavior/physiology MH - Female MH - Helplessness, Learned MH - Heterozygote MH - Male MH - Mice MH - Mice, Knockout MH - *Motivation MH - Pain Threshold/*physiology EDAT- 2001/10/05 10:00 MHDA- 2002/02/05 10:01 CRDT- 2001/10/05 10:00 PHST- 2001/10/05 10:00 [pubmed] PHST- 2002/02/05 10:01 [medline] PHST- 2001/10/05 10:00 [entrez] AID - 10.1037//0735-7044.115.5.1145 [doi] PST - ppublish SO - Behav Neurosci. 2001 Oct;115(5):1145-53. doi: 10.1037//0735-7044.115.5.1145.