胸腺素β4对重症急性胰腺炎大鼠的保护作用  被引量:3

Protective effect of thymosin β4 on severe acute pancreatitis in rats

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作  者:何小波[1] 王卫星[1] 刘黎明[2] 余佳[1] 左腾[1] 石乔[1] 郭闻一[1] 

机构地区:[1]武汉大学人民医院肝胆腔镜外科,武汉430060 [2]鄂州市中心医院普通外科

出  处:《中华急诊医学杂志》2014年第10期1083-1087,共5页Chinese Journal of Emergency Medicine

基  金:国家自然科学基金(81300356、81370562)

摘  要:目的 探讨胸腺素β4腹腔注射给药对重症性胰腺炎大鼠的保护作用及机制.方法 雄性SD大鼠54只,随机(随机数字法)分为3组:假手术组(SO组)、重症急性胰腺炎组(SAP组)、胸腺素β4预处理组(Tβ4组),每组18只.采用5%牛磺胆酸钠逆行胆胰管注射制备大鼠SAP模型,Tβ4组在造模前30 min经腹腔注射胸腺素β4(6 mg/kg),术后3、6、12h分批剖杀大鼠,各时间点6只.检测血清淀粉酶、TNF-α、IL-1β及IL-6水平,光镜观察胰头部组织病理变化,Western blot检测胰腺组织NF-κB p65和IκB α蛋白表达水平.多个样本均数比较采用单因素方差分析,两组间比较采用t检验.结果 SAP组(3、6、12 h)血清淀粉酶分别为(3221 ±394) U/L、(4509±474) U/L和(6280±728) U/L,高于相应时间点Tβ4组的(2598±416) U/L、(3639±373) U/L和(4782±466) U/L,差异具有统计学意义(t=-2.666,-3.530,-4.245,P<0.05);SAP组(3、6、12 h)TNF-α分别为(247.7±18.5) pg/mL、(313.5±17.7) pg/mL和(359.3±22.6)pg/mL,均高于Tβ4组相应时间点的(182.3 ±13.6) pg/mL、(258.9±14.9)pg/mL和(278.1±16.3)pg/mL,差异具有统计学意义(t=-6.964,-5.769,-7.152,P<0.05);SAP组(3、6、12 h)IL-1β分别为(258.2±10.5) pg/mL、(345.1±22.0) pg/mL和(430.9±25.4) pg/mL,均高于Tβ4组相应时间点的(170.3±12.4) pg/mL、(263.5±13.3) pg/mL和(303.7±16.1)pg/mL,差异具有统计学意义(t=-13.258,-7.762,-10.355,P<0.05);SAP组(3、6、12 h)IL-6分别为(266.3±11.5) pg/mL、(355.0±24.4) pg/mL和(429.2±33.7) pg/mL,均高于Tβ4组相应时间点的(171.1±13.0) pg/mL、(234.9±19.2) pg/mL和(277.2±19.2)pg/mL,差异具有统计学意义(t=-13.401,-9.474,-9.582,P<0.05);SAP组(3、6、12 h)胰腺病理评分分别为(6.25±0.94)分、(8.83 ±0.82)分和(12.08±1.16)分,显著高于Tβ4组相应时间点的(4.17±0.93)分、(6.33 ±0.82)�Objective To investigate the protective effects and mechanisms of intraperitoneal administration of thymosin β4 on severe acute pancreatitis in rats.Methods Fifty-four male Sprague-Dawley rats were randomly (random number) divided into sham operation (SO) group,severe acute pancreatitis (SAP) group and thymosin β4 (Tβ4) pretreatment group (n =18 in each group).SAP rat model was prepared by retrograde injection of 5% sodium taurocholate into the biliopancreatic duct.Rats in Tβ4 group were treated with thymosin β4 (6 mg/kg) by intraperitoneal administration prior to SAP modeling.Six rats in each group were sacrificed at 3,6,12 hours,respectively after modeling.The serum levels of amylase,tumor necrosis factor-α (TNF-α),interleukin-1 β (IL-1 β),and interleukin-6 (IL-6)were detected,and pathological scores of the tissue of pancreas head were evaluated under light microscope.Pancreatic nuclear factor-kappa 1B (NF-κB) p65 and IκB α levels were detected by the Western blot.All data were analyzed by using the analysis of variauce or t test.Results The levels of serum amylase of SAP 3,6 and 12 hours groups were (3221 ±394) U/L,(4509 ±474) U/L and (6280 ±728) U/L,which were significantly higher than (2598±416) U/L,(3639 ±373) U/L and (4782 ±466) U/L of the Tβ4 groups (t =-2.666,-3.530,-4.245,P < 0.05).The levels of serum TNF-α of the SAP 3,6 and 12 hours groups were (247.7 ± 18.5) pg/mL,(313.5 ± 17.7) pg/mL and (359.3 ±22.6) pg/mL,which were higher than (182.3 ± 13.6) pg/mL,(258.9 ± 14.9) pg/mL and (278.1 ± 16.3) pg/mL of the Tβ4 groups (t =-6.964,-5.769,-7.152,P < 0.05).The levels of serum IL-1 β of the SAP 3,6 and 12 hours groups were (258.2±10.5) pg/mL,(345.1 ±22.0) pg/mL and (430.9 ±25.4) pg/mL,which were higher than (170.3 ± 12.4) pg/mL,(263.5 ± 13.3) pg/mL and (303.7 ± 16.1) pg/mL of the Tβ4 groups (t =-13.258,-7.762,-10.355,P < 0.05).The levels of seru

关 键 词:急腹症 胰腺炎 胸腺素Β4 肿瘤坏死因子-α 细胞信号通路 核因子-κB 肌动蛋白 全身炎症反应综合征 多器官功能不全综合征 

分 类 号:R657.51[医药卫生—外科学]

 

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