p38丝裂原活化蛋白激酶抑制剂对急性出血坏死性胰腺炎肾损伤的保护作用  被引量:4

Protective effects of p38 mitogen-activated protein kinase inhibitor on kidney injury following ex-perimental acute necrotic pancreatitis in rats

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作  者:李红光[1] 刘红山[2] 薛焕洲[2] 岳学良[2] 余淼[2] 潘承恩[3] 

机构地区:[1]河南省人民医院普通外科,郑州450003 [2]河南省人民医院肝胆胰腺外科,郑州450003 [3]西安交通大学第一医院肝胆外科

出  处:《中华实验外科杂志》2013年第3期527-529,共3页Chinese Journal of Experimental Surgery

基  金:河南省科技攻关计划资助项目(200903126);河南省科技厅基础与前言研究项目(122300410055)

摘  要:目的观察大鼠急性出血坏死性胰腺炎(ANP)肾损伤的机制及其p38丝裂原活化蛋白激酶(MAPK)抑制剂的治疗作用。方法60只sD大鼠,随机分为3组,Sham组、ANP组和sB治疗组(SB203580,0.5mg/kg静脉注射)。采用5%牛磺胆酸钠溶液逆行注射胰胆管建立鼠的ANP模型,大鼠分别在术后1…3612h剖杀。检测血肿瘤坏死因子·Or.(TNF一a)、淀粉酶、血尿素氮(BUN)、血尿素氮(Cr)、B2.微球蛋白(132一MG)水平;光镜和电镜下检测胰腺及其肾组织的病理变化;免疫组织化学检测肾脏组织中p38MAPK的表达。结果ANP组血BUN[(15.68±1.85)mmol/L],Cr[(30.60±2.04)mmol/L]、B2.MG[(31.40±1.93)mmol/L],血和肾脏组织中的TNF—d[血(257.40±4.52)ng/L,肾脏(203.01±5.38)ng/L]较Sham组[BUN(0.31±1.08)mmol/L,Cr(21.62±1.75)mmol/L,132一MG(21.12±1.65)mmol/L、(36.90±0.52,ng/L、(31.08±1.12)ng/L]显著升高(P〈0.05);肾脏组织中的p38MAPK的表达也显著增强;SB203580治疗组较ANP组可显著减低血BUN[(11.93±1.77)mmol/L]、Cr[(24.73±1.01)mmol/L]、132一MG[(25.81±2.21)mmol/L]、血和肾组织中的’rNF—Or.[(199.73±8.23)ng,'L,(173.06±4.89)ng/L]及其肾组织中的p38MAPK的表达;光镜下及其电镜下检测肾脏的损害显著减轻。结论p38MAPK可能参与了ANP并发的肾损伤.038MAPK抑制剂fSB2035801对ANP肾榻伤右治疗作用。Objective To investigate the mechanism of kidney injury in experimental acute necrot- ic panceatitis (ANP) and protective effects of p38 mitogen-activated protein kinase (MAPK) inhibitor. Methods Sixty pathogen-free male Sprague-Dawley rats were randomly divided into the sham group, acute necrotizing pancreatitis group (ANP group) and ANP group of rats subject to treatment of SB203580 ( SB203580, O. 5 mg/kg, i. v). The rats were sacrificed at 1, 3, 6 and 12 h after operation. The serum levels of blood urea nitrogen (BUN) , creatinine (Cr) , 13 2-Microglohulin (132-MG) , and serum and renal tissue levels of tumor necrosis factor-a (TNF-ot) were determined. The expression levels of pho-p38 MAPK in the pancreas and kidney of SAP rats were determined by using immunohistochemistry. Pathologic chan- ges of the kidney and pancreas were observed under light microscope and electron microscope. Results The serum levels of BUN [ ( 15. 68±1.85) rnmol/L], Cr [ (30. 60±2. 04) mmol/L], 132-MG [ (31.40±1.93) mmol/L], serum and renal tissue levels of TNF-ot [serum: (257.40±4. 52) ng/L, renal tissue: (203.01 -+5.38) ng/L], and the expression of p38 MAPK in the pancreas and kidney in ANP group and SB group were more significantly increased than those in sham group [ BUN ( 0. 31±1.08 ) mmol/L; Cr (21.62±1.75) retool/L; β-MG (21.12±1.65) mmol/L; TNF-a, pancreas: (36. 90±0. 52) ng/L, and kidney: (31.08±1.12) ng/L] (P 〈0. 05). Moreover, Those in SB group were more significantly reduced [BUN (11.93±1.77) mmo//L, Cr (24.73 ±1.01) mmol/L, fl2-MG (25.81 ±2.21) mmol/L, TNF-a: pancreas, ( 199. 73±8.23) ng/L, and kidney: ( 173.06±4. 89) ng/L] than those in SAP group ( P 〈 0.05 ). The renal sections from SB group displayed significantly less proximal tubule cell necro- sis than in ANP group. Conclusion The activation and over-expression of 38 MAPK in the renal tissue may be one of the reasons for renal injury in

关 键 词:急性胰腺炎 P38丝裂原活化蛋白激酶 肾损伤 肿瘤坏死因子 

分 类 号:R57[医药卫生—消化系统]

 

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