ABSTRACT
Objective To study the influence of hyponatremia on prognosis in hospitalized patients with chronic heart failure . Methods A total of 322 patients with chronic heart failure from Feb .2006 to Aug .2012 were retrospectively reviewed and random-ly divided into hyponatremia group(n=161) and normal serum sodium group(n=161) .The clinical data of the two groups were compared .Results There were significant difference between the two groups in the BNP levels ,length of stay ,hospital mortality and readmission rates(P<0 .05) .Serum sodium concentration in hyponatremia group was decreased with the decrease of cardiac function(P<0 .05) ,BNP levels was elevated with the decrease of blood sodium level (P<0 .05) ,days of hospitalization and hospital mortality were increased with the decrease of cardiac function (P< 0 .05) .Conclusion Patients with heart failure combined hy-ponatremia have poor cardiac function ,higher in-hospital mortality and readmission rates and longer hospital stay .
ABSTRACT
Objective To explore the effect of protease-activated receptor 1(PAR-1) activation on the expression of CXCR4 mR-NA of mouse endothelial progenitor cells (EPCs) and proliferation ,migration of EPCs .Methods Mouse EPCs were activated by different concentration of SFLLRN (one agonist of PAR-1) ,or transfected by small interfering RNA of PAR-1 .The expressions of PAR-1 and CXCR4 mRNA of EPCs were detected by fluorescent quantitative real-time PCR .Proliferation ,migration of EPCs were detected by MTT ,Transwell chambers respectively .Results The expressions of PAR-1 and CXCR4 mRNA in SFLLRN group were higher than that in other groups(P< 0 .05) .The expression of CXCR4 mRNA was highly positive correlation with PAR-1 mRNA(r=0 .991) .The proliferation ,migration of mouse EPCs were induced by activation of PAR-1 .Conclusion Activation of PAR-1 promotes cell proliferation and migration of mouse EPCs ,this effect may be depended on CXCR4 .