Roux-en-Y胃旁路术对肥胖糖尿病大鼠糖脂代谢及炎症水平的影响  被引量:4

Effects of Roux-en-Y gastric bypass surgery on glucose and lipid metabolism and systemic inflammation level in zucker diabetic fatty rats

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作  者:郭妍[1] 刘超乾[2] 单成祥[3] 张誉籍[2] 范志雄[2] 邹大进[1] 

机构地区:[1]第二军医大学附属长海医院内分泌科,上海200433 [2]第二军医大学附属长海医院普外科,上海200433 [3]第二军医大学附属长征医院微创外科

出  处:《中华糖尿病杂志》2014年第3期152-156,共5页CHINESE JOURNAL OF DIABETES MELLITUS

基  金:国家自然科学基金(81170738、81300684)

摘  要:目的 研究Roux-en-Y胃旁路术(RYGB)对自发型肥胖糖尿病(ZDF)大鼠模型糖脂代谢及全身炎症水平的影响.方法 30只雄性ZDF大鼠采用完全随机分组方法分为3组:RYGB手术组(n=10)、匹配饮食控制对照组(PF组,n=10)、自由进食对照组(AL组,n=10).定期测量大鼠体重与摄食量.在术前及术后10周时,对各组大鼠行口服糖耐量试验,检测血糖、血脂、肝脏转氨酶及血清肿瘤坏死因子α(TNF-α)、白细胞介素1β(IL-1β)与单核细胞趋化蛋白1(MCP-1)等炎症相关指标,处死各组大鼠后取附睾脂肪,采用实时定量-聚合酶链反应(RT-PCR)方法检测脂肪细胞TNF-α、IL-1β与MCP-1 mRNA表达水平.组间数据比较采用t检验与方差分析.结果 术后10周口服糖耐量试验结果表明,RYGB组、PF组及AL组在各个时间点的血糖值比较均有统计学差异[分别为:基线空腹血糖(FPG):(6.8±0.5)、(8.7±2.2)、(20.6±3.0) mmol/L,F=12.4,P<0.05;30 min:(14.0±0.8)、(19.1±4.3)、(31.7±0.9)mmol/L,F=20.1,P<0.05;60 min:(15.4±1.1)、(20.2±7.1)、(33.0 ±0.3)mmol/L,F =22.5,P <0.05;90 min:(13.2 ±0.6)、(20.0±5.8)、(32.4±0.4)mmol/L,F=14.7,P <0.05;120 min:(8.3 ±0.3)、(14.0±5.2)、(29.1±1.2)mmol/L,F =20.5,P <0.05].血清总胆固醇(TC)、游离脂肪酸(FFA)水平显著低于PF组和AL组[分别为:TC:(3.82±0.13)比(4.10 ±0.37)比(5.25±0.25) mmol/L,F=15.3,P<0.05,FFA:(0.47±0.14)比(0.93±0.08)比(0.78 ±0.06) mmol/L,F=3.4,P<0.05].RYGB组大鼠血清TNF-α、IL-1β水平均较AL组明显下降[分别为TNF-α(124 ±23)比(532±52)mmol/L,t =5.8,P<0.05;IL-1β(61±l6)比(250±32)mmol/L,t=4.3,P<0.05],且脂肪组织中上述两种炎症因子mRNA在3组大鼠中的表达趋势与血清水平基本一致;而MCP-1在3组中表达无统计学差异(均P>0.05).结论 Roux-en-Y胃旁路术能显著改善�Objective To investigate the effect of Roux-en-Y gastric bypass (RYGB) on glucose and lipid metabolism and systemic inflammation levels in spontaneous Zucker Diabetic Fatty (ZDF) rats.Methods Thirty male ZDF rats were randomly divided to three groups: RYGB surgery group (n =10),sham surgery pair-fed (PF) group (n =10) and sham surgery ad libitum fed (AL) group (n =10).Body weight,food intake was monitored.Oral glucose tolerance test,serum lipid level,liver transaminases,TNF-α,IL-1 β and MCP-1 were measured before and 10-week after surgery.Then,rats were sacrificed.The epididymal fat were taken from all groups of rats.The mRNA expression of TNF-α,IL-1 β and MCP-1 in epididymal fat of rats were detected using RT-PCR method.The data was analyzed by t test and analysis of variance.Result Oral glucose tolerance test showed that blood glucose were significantly different among the RYGB group,AL group and PF group after 10 weeks postoperatively (FPG (6.8 ± 0.5),(8.7 ± 2.2),(20.6 ±3.0) mmol/L,F=12.4,P〈0.05,30 min (14.0 ±0.8),(19.1 ±4.3),(31.7 ±0.9) mmol/L,F=20.1,P〈0.05,60 min (15.4±1.1),(20.2 ±7.1),(33.0±0.3) mmol/L,F=22.5,P〈0.05,90min (13.2 ±0.6),(20.0 ±5.8),(32.4 ±0.4) mmol/L,F =14.7,P 〈0.05,120 min (8.3 ±0.3),(14.0 ± 5.2),(29.1 ± 1.2) mmol/L,F =20.5,P 〈 0.05).Serum total cholesterol (TC) and free fatty acids (FFA) was decreased in the RYGB group,compared with PF and AL controls (TC (3.82 ± 0.13) vs (4.10±0.37) vs (5.25 ±0.25) mmol/L,F=15.3,FFA (0.47 ±0.14) vs (0.93 ±0.08) vs (0.78 ±0.06) mmol/L,F =3.4,both P 〈 0.05).And liver transaminases (ALT and AST) levels in RYGB group were lower than AL group,but higher than PF group (ALT (129 ±28) vs (67 ±7) vs (726 ± 160) mmol/L,F =15.1,AST (208±26) vs (124±10) vs (673±209) mmol/L,F=5.9,bothP〈0.05) and the serum levels of TNF-α and IL-1 βin RYGB group also decreased,compa

关 键 词:肥胖 糖尿病 2型 胃旁路术 大鼠 

分 类 号:R587.1[医药卫生—内分泌] R589.2[医药卫生—内科学]

 

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