title: [Changes of mitochondrial genes expressed in the brain tissue of rat in stroke-like episodes rats].
abstract: OBJECTIVE
  Stroke is a complex disorder caused by a combination of genetic and environmental factors. Epidemiological studies have provided evidence of genetic influence on the development of human stroke. However, genetic changes which contribute to the development of stroke are not well known. This study was designed to gain a deep insight into that aspect.
  
  
  METHODS
  Using cold-stimuli plus high-salt intake as environmental risk factors, the authors established a hypertension model in rats, which produced a complication of stroke. Then, they used the suppression subtractive hybridization(SSH) technique to identify the differential genes that specifically expressed in total cerebrum tissue of the rats in stroke group. A comparison was made between two populations, namely the control group and stroke group.
  
  
  RESULTS
  By the use of SSH approach, a total of 576 clones were generated in this study from two subtractive libraries, among them 456 clones were usable and were analyzed. Genes for metabolism transcripts in stroke group were shown to be up-regulated (P<0.01). Mitochondrial transcripts were observed in a high rate of 26.5%.
  
  
  CONCLUSIONS
  The findings suggested that mitochondrial genes should induce an increased sensitivity to stroke through the changes of gene expressions. Mitochondrial genes probably play important roles in the causes and effects of stroke.
authors.affiliation: Department of Cardiology, Kunming General Hospital, Chengdu Military Area, Kunming, Yunnan, 650032 PR China. wangxianmei89@yahoo.com
authors.forename: Xian-mei
authors.initials: XM
authors.lastname: Wang
authors.forename: Li-xia
authors.initials: LX
authors.lastname: Yang
authors.forename: Rui
authors.initials: R
authors.lastname: Yan
authors.forename: Shan-jun
authors.initials: SJ
authors.lastname: Zhu
authors.forename: Chuan-ming
authors.initials: CM
authors.lastname: Guo
authors.forename: Feng
authors.initials: F
authors.lastname: Qi
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Ru-tai
authors.initials: RT
authors.lastname: Hui
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism* / Q000473:pathology; D004272:DNA, Mitochondrial / Q000235:genetics*; D005786:Gene Expression Regulation; D008297:Male; D009154:Mutation; D051381:Rats; D017208:Rats, Wistar; D020521:Stroke / Q000209:etiology / Q000235:genetics* / Q000473:pathology
chemical_list: D004272:DNA, Mitochondrial