Résumé
@# ObjectiveTo study the characteristic of apoptosis and the expression of inducible nitric oxide synthase(iNOS),as well as relation between them after spinal cord injury (SCI) in rats.Methods84 adult SD rats were randomly divided into three groups,and made into mild,moderate and severe acute SCI models.The rats were killed at 4h,8h,1d,3d,7d,14d and 21d after surgery.The histopathology changes in spinal cord tissue were observed with HE staining microscopic examination.The expression of iNOS was determined by immunohistochemistry and the apoptosis was labeled by terminal deoxynucleotidyl transferase mediated dUTP nick end labeling(TUNEL).ResultsThe histopathology changes in spinal cord tissue deteriorated with increasing in injury degree.A little iNOS immunoreactivity (iNOS-IR) was detected in nerve cells,gliocytes,ependymocytes and blood vessel endotheliocytes of normal and vertebra shelf operated controls,increasing at 8 h, and in flood tide in 7 d. The expression of Bax and the rates of TUNEL positive cells were similar with that of iNOS after SCI. There was positive correlation between expression of iNOS and degree of primary SCI ,apoptosis index(r=0.414,P<0.01;r=0.854,P<0.01).Conclusions Expression of iNOS and Bax increase and a large number of TUNEL positive cells present after SCI in rats. There is positive correlation between expression of iNOS and degree of primary SCI,apoptosis index.
Résumé
Objective To study the clinical significance of the proinflammatory cytokines and anti-inflammatory cytokines in acute pancreatitis with systemic inflammatory response syndrome. MethodsIn this study, 13 cases of mild acute pancreatitis (MAP), and 19 cases of severe acute pancreatitis(SAP) were recruited to evaluate acute physiology and chronic health evaluation (APACHEⅡ) on post admission day 1,3,5,7 and Balthazar CT criteria on post admission day 1,7. Values of serum IL-6?IL-8?IL-10?IL-12 were measured. ResultsThe scores of APACHEⅡ and Balthazar CT criteria were lower in the MAP patients than those in the SAP patients(5.6?2.1 and 1.5?0.6 vs. 13.6?4.3 and 6.3?1.5, all P