PMID- 25185865 OWN - NLM STAT- MEDLINE DCOM- 20151008 LR - 20141219 IS - 1740-0929 (Electronic) IS - 1344-3941 (Linking) VI - 85 IP - 12 DP - 2014 Dec TI - Differential expression of genes encoding neurotrophic factors and their receptors along the septal-temporal axis of the rat hippocampus. PG - 986-93 LID - 10.1111/asj.12268 [doi] AB - The hippocampus plays a key role in learning and emotional regulation. The hippocampus' function varies along its septotemporal axis, with the septal pole being more frequently involved in spatial learning and memory, and the temporal pole playing a greater role in emotional behaviors. In this study, we present findings aimed at checking the expression level of the genes encoding neurotrophins and their receptors, including nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and their receptors (TrkA, TrkB and TrkC) in the hippocampus along the septotemporal axis. Using real-time PCR, several different expression patterns were observed. Remarkably, the expression of both NT-3 and TrkA genes in the septal hippocampus was higher than in the middle and temporal hippocampus. Higher expression of NT-3 and TrkA may implicate active neurogenesis in the dentate gyrus (DG) of the septal hippocampus because more neurogenesis occurs in the septal than the temporal DG of rats. Finally, the results obtained in this study emphasize the importance of choosing the hippocampal portion along its septotemporal axis for any hippocampal molecular and biochemical experimental studies. CI - (c) 2014 Japanese Society of Animal Science. FAU - Toyoda, Atsushi AU - Toyoda A AD - United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Japan; College of Agriculture, Ibaraki University, Ibaraki, Japan; Ibaraki University Cooperation between Agriculture and Medical Science (IUCAM), Ibaraki, Japan. FAU - Iio, Wataru AU - Iio W FAU - Goto, Tatsuhiko AU - Goto T FAU - Koike, Hiroaki AU - Koike H FAU - Tsukahara, Takamitsu AU - Tsukahara T LA - eng SI - GENBANK/M36589 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140903 PL - Australia TA - Anim Sci J JT - Animal science journal = Nihon chikusan Gakkaiho JID - 100956805 RN - 0 (Nerve Growth Factors) RN - 0 (Receptors, Nerve Growth Factor) SB - IM MH - Animals MH - Base Sequence MH - Behavior MH - Emotions MH - *Gene Expression MH - Hippocampus/*metabolism/*physiology MH - Learning MH - Male MH - Memory MH - Molecular Sequence Data MH - Nerve Growth Factors/*genetics/metabolism MH - Neurogenesis MH - Rats, Wistar MH - Real-Time Polymerase Chain Reaction MH - Receptors, Nerve Growth Factor/*genetics/metabolism OTO - NOTNLM OT - RT-PCR OT - hippocampus OT - neurotrophin OT - rat EDAT- 2014/09/05 06:00 MHDA- 2015/10/09 06:00 CRDT- 2014/09/05 06:00 PHST- 2014/02/18 00:00 [received] PHST- 2014/06/06 00:00 [accepted] PHST- 2014/09/05 06:00 [entrez] PHST- 2014/09/05 06:00 [pubmed] PHST- 2015/10/09 06:00 [medline] AID - 10.1111/asj.12268 [doi] PST - ppublish SO - Anim Sci J. 2014 Dec;85(12):986-93. doi: 10.1111/asj.12268. Epub 2014 Sep 3.