西维来司钠对重症急性胰腺炎大鼠肝损害的保护作用及其机制  被引量:4

Protective effects and mechanisms of sivelestat against the liver injuries induced by severe acute pancreatitis in rats

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作  者:王琦[1] 沈世强[1] 林福生[1] 邹力[1] 

机构地区:[1]武汉大学人民医院普通外科,430060

出  处:《中华实验外科杂志》2012年第5期900-902,F0004,共4页Chinese Journal of Experimental Surgery

摘  要:目的观察西维来司钠(Sivelestat)对重症急性胰腺炎(SAP)大鼠肝损害的保护作用并探讨其机制。方法健康雄性SD大鼠54只,随机分为c组(对照组)、P组(SAP组)、s组(SAP+Sivelestat治疗组),每组18只。c组为假手术组,P组大鼠以4%牛黄胆酸钠胆胰管逆行注射制造重症急性胰腺炎模型,s组造模后立即给予Sivelestat[0.2mg/(kg·h)]尾静脉注射治疗。3组大鼠术后3、6、12h分别取6只大鼠检测血清肿瘤坏死因子-a(TNF-a)、丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)含量;取肝组织测定中性粒细胞弹性蛋白酶(NE);原位末端标记法(TUNEL)检测肝细胞凋亡并计算凋亡指数;流式细胞学方法测定肝细胞凋亡率;取肝脏组织行常规苏木素一伊红(HE)染色切片观察病理改变。结果各时点P组大鼠血清TNF-a[(453.58±43.49)、(359.00±34.17)、(256.48±29.74)ng/L]、Aur[(120.2±10.6)、(329.2±52.0)、(508.7±49.6)U/L]、AST[(331.5±3.5)、(579.0±50.6)、(708.0±49.8)U/L]及肝组织NE含量[(1.96±0.13)、(2.67±0.15)、(3.71±0.38)ug/L]均较对照组明显升高(P〈0.01);与P组比较,s组大鼠TNF-a[(337.48±33.31)、(281.38±33.47)、(181.00±31.05)ng/L]、Aur[(89.0±29.7)、(151.2±27.8)、(334.2±25.0)U/L]、AST[(237.0±113.7)、(305.2±27.4)、(529.3±28.9)U/L]及肝组织NE含量[(1.07±0.08)、(2.11±0.35)、(2.84±0.52)ug/L]均有明显改善(P〈0.01);P组大鼠肝脏存在明显的细胞凋亡,并且随时间推移呈进行性加重趋势,S组大鼠各时点的肝细胞凋亡指数(8.1±0.7、11.2±0.8、15.1±1.0)以及肝细胞凋亡率均低于P组(11.4±1.1、15.3±1.1、21.3±1.2,P〈0.01);组织病理切片显示P组大鼠的肝�Objective To evaluate the protective effects of sivelestat against liver injuries induced by severe acute pancreatitis (SAP) in rats and investigate its potential mechanism. Methods Fifty-four male Sprague-Dawley rats were equally divided into three groups randomly: group C ( control group ) , group P (SAP group) and group S (SAP ± sivelestat group). The SAP models were induced by retrograde injection of 4% sodium taurocholate into bilopancreatic duct of SD rats. Group C rats were injected by iso- metric physiological saline. Group P rats were subjected to injection of sivelestat [0. 2 mg/(kg.h) ] via the caudal vein after models were induced. Serum levels of tumor necrosis factor-or ( TNF-a), alanine amin- otransferase (ALT), aspartate aminotransferase (AST) and neutrophil elastase (NE) activity of liver tis- sue were measured 3, 6, and 12 h after operation. Hepatocytes apoptosis was examined by using terminal deoxynuceotidy transferase mediated dUTP nick end labeling (TUNEL) and apoptosis index (AI) was cal- culated. Hepatocellular apopotosis rate was assayed by using flow cytometry and histopathologic changes of the liver were observed. Results In group P, serum level of TNF-a at 3, 6 and 12 h [ (453.58 ± 43.49), (359.00±34.17), (256.48 ±29.74) ng/L], those of ALT [(120.2 ±10.6), (329.2 ± 52.0), (508.7±49.6) U/L], AST [(331.5 ±3.5), (579.0±50.6), (708.0_±49.8) U/L], and those of NE [ (1.96 ±0. 13), (2. 67 ±0. 15), (3.71±0. 38)ug/L] in the liver tissue were significantly increased as compared with those in group C (all P 〈0. 01). All the indicators at 3, 6 and 12 h in group S, inclusing TNF-a[ ( 337.48 ± 33. 31 ), (281.38± 33.47 ), ( 181.00± 31.05 ) ng/L ], ALT [ ( 89. 0 ±29.7), (151.2±27.8), (334.2 ±25.0) U/L], AST [(237.0±113.7), (305.2±27.4), (529.3± 28. 9) U/L], NE [ ( 1.07 ±0. 08), (2. 11 ±0. 35), (2. 84 ±0. 52) μg/L] were significantl

关 键 词:胰腺炎 西维来司钠 肝损害 脱噬作用 

分 类 号:R657.5[医药卫生—外科学] R-332[医药卫生—临床医学]

 

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