Objective To investigate the effects of preconditioning with emulsified isoflurane(eISO)on inflammatory response to myocardial ischemia-reperfusion(I/R)injury in rats.Methods Forty SD rats of both sexes weighing 250-280 g were randomly allocated into 4 groups(n =10 each):groupⅠ sham operation(S);group Ⅱ myocardial I/R + normal saline(NS); group Ⅲ I/R + eISO and group Ⅳ I/R + 30％ intralipid(Ⅱ.)(vehicle for eISO).Myocardial ischemia was induced by occlusion of anterior descending branch of left coronary artery for 30 min followed by 180 min reperfusion.NS,30％ intralipid and elSO 2 ml/kg were infused iv over 30 min at 30 min before myocardial ischemia in groups Ⅱ,Ⅲ and Ⅳ respectively.The animals were killed at the end of 180 min repeffusion.Their hearts were removed for determination of infarct size and myocardial NF-κB p65 and ICAM-1 expression(by immuno-histochemistry)and plasma concentration of TNF-t(by radioimmunoassay).Results Myocardial I/R induced myocardial infarct and significantly increased plasina TNF-a concentration and myocardial ICAM-1 and NF-κB p65 expression in gro up Ⅱ,Ⅲ and Ⅳ as compared with'sham operation group (Ⅰ).Plasma TNF-a concentration and myocardial ICAM-1 and NF-kB p65 expression were significantly lower in group Ⅲ(eISO)than in group Ⅱ and Ⅳ.Conclusion Down-regulation of myocardial NF-kB and ICAM-1 expression and inhihition of inflammatoy response are involved in the mechanism by which preconditioning with iv elso protects against myocardial I/R injury.

OBJECTIVE: To evaluate three therapeutic schemes for sudden deafness with cost-effectiveness analysis for guiding rational use of drugs. METHODS:Using pharmacoeconomic cost-effectiveness analysis to evaluate 61 patients with 62ears of sudden deafness treated by Salvia Miltiorrhiza(groups A), Salvia Miltiorrhiza and cerebroprotein hydrolysate(groups B) or cerebroprotein hydrolysate(groups C) . RESULTS: The effective rates of three groups were 73.9%, 75.0% and 80.0% respectively without significant difference among them(P ＞ 0.05) . The average drug costs for one patient in three groups were 617.89 yuan, 2 651.29 yuan and 2 647.99 yuan respectively. The costs for 1% increase of effective rate in three groups were 8.36 yuan, 35.35 yuan and 33.10 yuan respectively. CONCLUSION: Salvia Miltiorrhiza scheme is the most rational one for sudden deafness.

Digital subtraction angiography has long been recognized as a gold standard for detecting cerebrovascular lesions.With the development of CT techniques,CT angiography(CTA)has been widely used in intracranial and extracranial vascular evaluation.This article reviews the development of CTA technique and its application in the diagnosis of cerebrovascular lesions.

ObjectiveTo get to know the status of health statistics postgraduate teaching and requirements during the study, and provide a basis to improve medical statistics teaching. MethodsPostgraduate students of 2008 grade of Dalian Medical University were selected randomly and filled in the self-designed questionnaire. Results52.6％ of the students considered that medical statistics was more important than other courses. 72.6％ of the students thought that medical statistics was difficult. Up to 30％of the students couldn't master and apply superior statistical analysis technique. ConclusionThe results of the survey offered basis and direction for enhancing the teaching quality and improving teaching methods.