Hepatic gene expression of rats subjected to hemorrhagic shock

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Author:
XU Hui-bin(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
HUANG Ling-zhi(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
ZHENG Wei(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
LI Xiao-feng(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
WANG Zi-ling(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
ZHOU Hong(Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China)
Journal Title:
CHINESE JOURNAL OF EMERGENCY MEDICINE
Issue:
Volume 18, Issue 07, 2009
DOI:
10.3760/cma.j.issn.1671-0282.2009.07.009
Key Word:
Hemorrhagic shock; DNA chip;Gene expression; liver

Abstract: Objective To analyze the differential gene expression profiling of liver in rats subjected to hemorrhagic shock(HS) and sham hemorrhage shock(SHAM) by gene chip technology, thus to evaluate the possible molecular pathogenesis of HS. Method 20 male Wistar rats were randomly divided into a SHAM group and a HS group, with 10 rats in each group. Hepatic gene expression profiles were detected by oligonucleotide microarrays of 5705 mouse genes in two groups for three times. Genes with ratio(R) > 2 were identified as up-regulated and R < 0.5 were identified as down-regulated. Biological function of differentially expressed genes was analyzed and 9 genes were selected to undergo semi-quantitative RT-PCR. Results Among the total 5705 probes detected,86 genes showed differential expression in HS group comparison with SHAM group. The expression levels of 72 genes were up-regulated while those of 14 genes were down-regulated significantly. Differentially expressed genes were classified according to their biological function: transport genes, transcription regulator genes, signaling genes, response to stress genes, metabolic genes, development genes and cell adhesion genes. Conclusions cDNA microarray is an efficient and high-throughout method to survey gene expression profiles in HS.The variation of those gene expressions might be a potential pathogenic mechanism for HS that may offer a novel target for further study of therapeutic strategies of HS.

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