PMID- 25730461 OWN - NLM STAT- MEDLINE DCOM- 20150702 LR - 20181113 IS - 0254-5853 (Print) IS - 2095-8137 (Electronic) IS - 0254-5853 (Linking) VI - 36 IP - 1 DP - 2015 Jan 18 TI - Effects of senescence on the expression of BDNF and TrkB receptor in the lateral geniculate nucleus of cats. PG - 48-53 LID - 10.13918/j.issn.2095-8137.2015.1.48 [doi] AB - To explore the neural mechanisms mediating aging-related visual function declines, we compared the expressions of brain-derived neurotrophic factor (BDNF) and its high affinity receptor-tyrosine kinase B (TrkB) between young and old adult cats. Nissl staining was used to display neurons in each layer of the lateral geniculate nucleus (LGN). The BDNF- and TrkB receptor-immunoreactive neurons were labeled immunohistochemically, observed under optical microscope and photographed. Their neuronal density and immunoreactive intensity were measured. Results showed that the mean density of the Nissl stained neurons in each LGN layer were comparable between old and young adult cats, and their BDNF and TrkB proteins were widely expressed in all LGN layers. However, compared with young adult cats, both the density and optical absorbance intensity of BDNF- and TrkB-immunoreactive cells in each LGN layer in old cats were significantly decreased. These findings indicate that the decreased expressions of BDNF and TrkB proteins in the LGN may be an important factor inducing the compromised inhibition in the central visual nucleus and the functional visual decline in senescent individuals. FAU - Tong, Chuan-Wang AU - Tong CW AD - College of Life Science, Anhui Normal University, Wuhu 241000, China;College of Biological Engineering, Wuhu Institute of Technology, Wuhu 241000, China. FAU - Wang, Zi-Lu AU - Wang ZL AD - College of Life Science, Anhui Normal University, Wuhu 241000, China. FAU - Li, Peng AU - Li P AD - College of Life Science, Anhui Normal University, Wuhu 241000, China. FAU - Zhu, Hui AU - Zhu H AD - College of Life Science, Anhui Normal University, Wuhu 241000, China. FAU - Chen, Cui-Yun AU - Chen CY AD - College of Life Science, Anhui Normal University, Wuhu 241000, China. FAU - Hua, Tian-Miao AU - Hua TM AD - College of Life Science, Anhui Normal University, Wuhu 241000, China. tmhua@mail.ahnu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Dongwuxue Yanjiu JT - Dong wu xue yan jiu = Zoological research JID - 100961499 RN - 0 (Brain-Derived Neurotrophic Factor) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - Aging/*physiology MH - Animals MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Cats/*physiology MH - Geniculate Bodies/cytology/*metabolism MH - Neurons/metabolism MH - Receptor, trkB/genetics/*metabolism PMC - PMC4871216 OTO - NOTNLM OT - Age-related change OT - BDNF OT - Cat OT - Lateral geniculate nucleus OT - TrkB COIS- The authors have declared that no competing interests exist. EDAT- 2015/03/03 06:00 MHDA- 2015/07/03 06:00 PMCR- 2015/01/18 CRDT- 2015/03/03 06:00 PHST- 2015/03/03 06:00 [entrez] PHST- 2015/03/03 06:00 [pubmed] PHST- 2015/07/03 06:00 [medline] PHST- 2015/01/18 00:00 [pmc-release] AID - ZoolRes-36-1-48 [pii] AID - 10.13918/j.issn.2095-8137.2015.1.48 [doi] PST - ppublish SO - Dongwuxue Yanjiu. 2015 Jan 18;36(1):48-53. doi: 10.13918/j.issn.2095-8137.2015.1.48.