Hypothermia alleviates hypoxic ischemia-induced dopamine dysfunction and memory impairment in rats
- Authors
- Ko, Il-Gyu; Cho, Hanjin; Kim, Sung-Eun; Kim, Ji-Eun; Sung, Yun-Hee; Kim, Bo-Kyun; Shin, Mal-Soon; Cho, Sehyung; Pak, Youngmi Kim; Kim, Chang-Ju
- Issue Date
- 12월-2011
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- hypoxic ischemia; hypothermia; dopamine; memory; cell proliferation
- Citation
- ANIMAL CELLS AND SYSTEMS, v.15, no.4, pp.279 - 286
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- ANIMAL CELLS AND SYSTEMS
- Volume
- 15
- Number
- 4
- Start Page
- 279
- End Page
- 286
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/110981
- DOI
- 10.1080/19768354.2011.607514
- ISSN
- 1976-8354
- Abstract
- Hypoxic ischemia injury is a common cause of functional brain damage, resulting from a decrease in cerebral blood flow and oxygen supply to the brain. The main problems associated with hypoxic ischemia to the brain are memory impairment and dopamine dysfunction. Hypothermia has been suggested to ameliorate the neurological impairment induced by various brain insults. In this study, we investigated the effects of hypothermia on memory function and dopamine synthesis following hypoxic ischemia to the brain in rats. For this purpose, a step-down avoidance task, a radial eight-arm maze task, and immunohistochemistry for tyrosine hydroxylase (TH) and 5-bromo-2'-deoxyuridine (BrdU) were performed. The present results indicated that the hypoxic ischemia-induced disturbance of the animal's performances and spatial working memory was associated with a decrement in TH expression in the substantia nigra and striatum, and an increase in cell proliferation in the hippocampal dentate gyrus. Hypothermia treatment improved the animals' performance and spatial working memory by suppressing the decrement in TH expression in the substantia nigra and striatum and the increase in cell proliferation in the dentate gyrus. We suggest that hypothermia can be an efficient therapeutic modality to facilitate recovery following hypoxic ischemia injury to the brain, presumably by modulating the dopaminergic cell loss.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Medicine > Department of Medical Science > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.