title: Comparison of immunoreactivities of calbindin-D28k, calretinin and parvalbumin in the striatum between young, adult and aged mice, rats and gerbils.
abstract: Calcium binding proteins play important roles in all aspects of neural functioning in the central nervous system. In the present study, we examined age-related changes of three different calcium binding proteins calbindin-D28k (CB), calretinin (CR) and parvalbumin (PV) immunoreactivities in the striatum of young (1 month), adult (6 months) and aged (24 months) ages in three species of rodents (mouse, rat and gerbil) using immunohistochemistry and Western blotting. Our results show that the number of CB-immunoreactive neurons was highest in the adult mouse and rat; however, in the gerbil, the number of CB-immunoreactive neurons was not significantly different from each group although the CB immunoreactivity was significantly decreased in the aged group compared with the adult group. The number of CR-immunoreactive neurons in the striatum was significantly highest in all the adult groups, and, especially, the number of CR-immunoreactive neurons and CR immunoreactivity in the aged gerbil were significantly decreased in the aged group compared with the other groups. Finally, we did not found any significant difference in the number of PV-immunoreactive neurons in the striatum with age among the three rodents. On the other hand, we found that protein levels of three calcium binding proteins in all the mouse groups were similar to the immunohistochemical data. These results indicate that the distribution pattern of calcium binding proteins is different according to age; the adult might show an apparent tendency of high expression in the striatum.
authors: Department of Pediatrics, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, 200-701, South Korea.
authors: Eun Joo
authors: EJ
authors: Bae
authors: Bai Hui
authors: BH
authors: Chen
authors: Bich Na
authors: BN
authors: Shin
authors: Jeong Hwi
authors: JH
authors: Cho
authors: In Hye
authors: IH
authors: Kim
authors: Joon Ha
authors: JH
authors: Park
authors: Jae Chul
authors: JC
authors: Lee
authors: Hyun Jin
authors: HJ
authors: Tae
authors: Soo Young
authors: SY
authors: Choi
authors: Jong-Dai
authors: JD
authors: Kim
authors: Yun Lyul
authors: YL
authors: Lee
authors: Moo-Ho
authors: MH
authors: Won
authors: Ji Hyeon
authors: JH
authors: Ahn
mesh_terms: D000367:Age Factors; D000818:Animals; D015153:Blotting, Western; D064092:Calbindin 1 / Q000378:metabolism*; D064032:Calbindin 2 / Q000378:metabolism*; D003342:Corpus Striatum / Q000378:metabolism*; D005849:Gerbillinae; D051379:Mice; D010320:Parvalbumins / Q000378:metabolism*; D051381:Rats
chemical_list: D064092:Calbindin 1; D064032:Calbindin 2; D010320:Parvalbumins