梗阻性黄疸和胆囊结石患者血小板活化依赖性颗粒表面膜蛋白的动态变化及其意义

Dynamic changes in plasma CD62Pand their significance among patients with obstructive jaundice and cholecystolithiasis

目的探讨梗阻性黄疸和胆囊结石患者血小板活化依赖性表面膜蛋白(CD62p)的动态变化及其意义。方法选取2010年4月-2013年10月兰州大学第二医院收治的胆石症患者108例。其中58例胆总管结石并有黄疸患者为梗阻性黄疸组,50例胆囊结石患者为胆囊结石组。2组患者分别于术前3 d、术中、术后3、6、9、12、15、18、21 d抽取外周静脉血,酶联免疫吸附法测定血浆CD62P含量。2组计量资料的比较采用t检验。结果梗阻性黄疸患者术前3 d至术后18 d血浆CD62P浓度均高于同期胆囊结石患者(P值均<0.01)。胆囊结石患者血浆CD62P术中、术后进行性升高,术后3 d最高,术后9 d降至术前水平。梗阻性黄疸患者血浆CD62P浓度术后9 d达最高,然后进行性下降,至术后18 d达术前水平,术后21 d达胆囊结石患者术前水平。结论胆道梗阻可致血管内皮细胞损伤和血小板活化,梗阻解除后,血管内皮细胞损伤和血小板活化改善。梗阻性黄疸手术较胆囊结石手术可致较重的血管内皮细胞损伤和血小板活化。

Objective To analyze and study the implication of dynamic changes in plasma CD62P among patients with obstructive jaundice and cholecystolithiasis.Methods A total of 58 patients diagnosed with choledocholithiasis and jaundice were included in the obstructive jaundice group,and 50 patients were in the cholecystolithiasis group.Peripheral venous blood was collected on preoperative day 3,on opera-tive day,and on postoperative days 3,6,9,12,15,18,and 21 in two groups,and the concentrations of plasma CD62P were measured by ELISA.Comparison of continuous data between the two groups was made by t test.Results The concentrations of plasma CD62P from preop-erative day 3 to postoperative day 18 were significantly higher in the obstructive jaundice group than in the cholecystolithiasis group （P〈0.01 across all time points）.In the cholecystolithiasis group,the concentrations of plasma CD62P significantly increased on operative day, and the increase continued and reached the peak on postoperative day 3,then followed by a decrease down to the preoperative level on post-operative day 9.In the obstructive jaundice group,the concentrations of plasma CD62P reached the peak on postoperative day 9,followed by a gradual decrease down to the preoperative level on postoperative day 18 and to an even lower level （preoperative level of patients with cho-lecystolithiasis）on postoperative day 21.Conclusion Extrahepatic biliary obstruction may lead to endothelial cell injury and platelet acti-vation,the condition of which is improved with the relief of obstruction.The surgery for obstructive jaundice may lead to much more endothe-lial cell injury and higher platelet activation than that for cholecystolithiasis.