Jian-cheng Xi

Chinese PLA General Hospital (301 Hospital), Beijing, Beijing Shi, China

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Publications (2)0 Total impact

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    ABSTRACT: To evaluate the changes in tumor necrosis factor-alpha (TNF-alpha) mRNA expression in peripheral polymorphonuclear leukocyte (PMNs) and tissues after cecal ligation puncture (CLP) in rats. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect TNF-alpha mRNA expression in peripheral PMNs and tissues. The TNF-alpha mRNA expression in peripheral PMNs rose gradually after CLP, and it began to decrease after reaching the peak at 48 hours, but it was still higher than normal. The elevation of TNF-alpha mRNA expression was first limited in the regional tissues (P<0.01 at 12 hours after CLP and peaked at 24 hours in the intestine), then it entered the blood circulation later to affect the sensitive organs--lungs and livers (P<0.01 at 24 hours after CLP and peaked at 48 hours in the lung; P<0.05 at 24 hours after CLP and peaked at 48 hours in the liver). The rise of TNF-alpha mRNA expression plays an important role in pathogenesis of sepsis.
    Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue 01/2006; 18(1):28-31.
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    ABSTRACT: To evaluate the changes in apoptosis of neutrophil in peripheral blood in sepsis in rats. The rat sepsis model was reproduced by cecum ligation and puncture (CLP). One hundred and forty-four rats were randomly divided into normal control group, sham operation group and 2, 6, 12, 24, 48, 72 hours after CLP groups. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) was used to identify neutrophil apoptosis. In early period after CLP, neutrophil apoptosis in peripheral blood was limited with a positive rate of less than 5.00%. The positive rate rose to (48.33+/-12.53)% at 48 hours, and it began to lower, approaching the normal level at 72 hours after CLP. Death is the main pathway of loss of neutrophils which are produced in the acute phase of sepsis, and apoptosis is the main pathway of loss of neutrophil in the later phase of sepsis.
    Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue 10/2005; 17(9):561-4.