Roux-en-Y胃旁路术改善非肥胖性2型糖尿病患者的糖脂代谢

目的 观察Roux-en-Y胃旁路术对非肥胖性2型糖尿病患者血糖和血脂代谢的影响.方法 共37例非肥胖2型糖尿病患者接受Roux-en-Y胃旁路术,观察其手术前、手术后3个月和6个月的体质量指数、糖化血红蛋白、空腹血糖、胰岛素、C肽、胰岛素抵抗指数、甘油三酯、总胆固醇、高密度脂蛋白和低密度脂蛋白含量的变化,并比较口服葡萄糖后2 h血糖、胰岛素和C肽的变化.结果 本组37例患者无严重围手术期并发症.手术前、手术后3个月和6个月体质量指数变化之间相比差异均无统计学意义(P>0.05);手术前、手术后3个月和6个月空腹血糖[(8.8±0.9)mmol/L、(7.0±2.0)mmol/L、(6.3±0.6)mmol/L,P<0.01]、糖化血红蛋白[(8.2%±1.2%、7.0%±0.8%、6.2%±0.7%,P<0.01]、空腹胰岛素[(10.6±1.2)mU/L、(9.0±0.9)mU/L、(9.0±0.8)mU/L,P<0.05]、空腹C肽[(1.9±0.5)nmol/L、(1.2±0.6)nmol/L、(1.2±0.4)nmol/L,P<0.01]、空腹甘油三酯[(3.3±0.8)mmol/L、(2.7 ±0.9)mmol/L、(2.6±0.7)mmol/L,P<0.05]、空腹总胆固醇[(6.5±1.8)mmol/L、(4.6±0.9)mmol/L、(4.2±1.0)mmol/L,P<0.05]、空腹低密度脂蛋白[(3.6±1.2)mmol/L、(2.8±0.8)mmol/L、(2.7±0.2)mmol/L,P<0.01]、餐后2 h血糖[(18.6±3.0)mmol/L、(12.7±2.3)mmol/L、(11.4±2.0)mmol/L,P<0.01]、胰岛素抵抗指数[(3.2±1.7)、(2.6±1.6)、(2.5±1.3),P<0.05]之间相比差异均有统计学意义.空腹高密度脂蛋白[(1.2±0.1)mmol/L、(1.4±0.4)mmol/L、(1.4±0.2)mmol/L,P<0.01]、餐后2 h胰岛素[(17.2±3,4)mU/L、(26.3±4.7)mU/L、(28.6±4.1)mU/L,P<0.01]、2 h C肽[(4.2±1.0)nmol/L、(6.3±1.5)nmol/L、(6.2±1.4)nmol/L,P<0.01]在手术后均明显升高.结论 Roux-en-Y胃旁路术可改善非肥胖性2型糖尿病患者血糖和血脂代谢,且与体质量指数变化无关.

Abstract：

Objective To evaluate Roux-en-Y gastric bypass operation on carbohydrate and lipid metabolism in type 2 diabetes mellitus patients with BMI range of 24 -29. Methods Thirty seven cases of type 2 diabetes mellitus patients undergoing Roux-en-Y gastric bypass operation were studied. Body mass index (BMI), glycosylated hemoglobin ( GHbAlc), fasting glucose ( FPG), fasting insulin (FIns) and C-peptide( FC-p), HOMA-IR, oral glucose tolerance (OGTT) including 2 hour insulin (2hIns) and C-peptide (2hC-p) , plasma levels of total cholesterol (TC), triglycerides(TG), high density lipoprotein( HDL-c)and low density lipoprotein ( LDL-c) were measured preoperatively and on 3 months, 6 months, later postoperatively. Result There was no statistically significant difference between BMI values measured preoperatively and postoperatively (P>0. 05 ). Serum levels measured in pre-operative and third and sixth post-operative months were: FPG (8. 8 ± 0. 9, 7. 0 ± 2. 0, 6. 3 ± 0. 6, P<0. 01) ( mmol/L) , GHbAlc (8.2±1.2, 7.0±0.8, 6.2±0.7, P<0.01)(%), FIns(10. 6 ±1. 2, 9.0±0.9, 9.0±0.8, P<0.05)(mU/L), FC-p(1.9±0.5, 1.2 ±0.6, 1.2 ±0.4, P<0. 01) (nmol/L), TG(3.3 ±0.8, 2.7 ±0.9,2.6±0.7, P<0.05)(mmol/L), TC(6.5±1.8, 4.6±0.9, 4.2 + 1.0, P<0. 05) (mmol/L)and LDL-c (3. 6 ±1.2, 2. 8 ±0.8, 2. 7 ±0.2, P<0.01) (mmol/L), 2 hour glucose after OGTT(2hPG) (18. 6 ±3.0, 12.7 ±2.3, 11.4±2.0, P<0. 01) (mmol/L), HOMA-IR(3. 2 ± 1. 7, 2.6±1.6, 2. 5 ±1.3, P<0. 05). Postoperative levels of HDL-c (1. 2 ± 0. 1, 1. 4 ± 0. 4, 1. 4 ± 0. 2, P<0. 01) ( mmol/L) , 2hIns (17. 2 ±3.4, 26. 3 ±4.7, 28. 6 ±4.1, P<0. 01) (mU/L)and 2hC-p(4. 2 ± 1. 0, 6. 3 ± 1. 5, 6. 2 ± 1.4,P<0. 01 ) ( nmol/L) were significantly higher than that of the pre-operative values ( P<0. 01 ).Conclusions Roux-en-Y gastric bypass significantly improves the metabolism of carbohydrate and lipid in type 2 diabetes patients with BMI 24-29, and the effects are not associated with weight loss.

Roux-en-Y gastric bypass improves carbohydrate and lipid metabolism in nonfat type 2 diabetes mellitus patients

Objective To evaluate Roux-en-Y gastric bypass operation on carbohydrate and lipid metabolism in type 2 diabetes mellitus patients with BMI range of 24 -29. Methods Thirty seven cases of type 2 diabetes mellitus patients undergoing Roux-en-Y gastric bypass operation were studied. Body mass index (BMI), glycosylated hemoglobin ( GHbAlc), fasting glucose ( FPG), fasting insulin (FIns) and C-peptide( FC-p), HOMA-IR, oral glucose tolerance (OGTT) including 2 hour insulin (2hIns) and C-peptide (2hC-p) , plasma levels of total cholesterol (TC), triglycerides(TG), high density lipoprotein( HDL-c)and low density lipoprotein ( LDL-c) were measured preoperatively and on 3 months, 6 months, later postoperatively. Result There was no statistically significant difference between BMI values measured preoperatively and postoperatively (P>0. 05 ). Serum levels measured in pre-operative and third and sixth post-operative months were: FPG (8. 8 ± 0. 9, 7. 0 ± 2. 0, 6. 3 ± 0. 6, P<0. 01) ( mmol/L) , GHbAlc (8.2±1.2, 7.0±0.8, 6.2±0.7, P<0.01)(%), FIns(10. 6 ±1. 2, 9.0±0.9, 9.0±0.8, P<0.05)(mU/L), FC-p(1.9±0.5, 1.2 ±0.6, 1.2 ±0.4, P<0. 01) (nmol/L), TG(3.3 ±0.8, 2.7 ±0.9,2.6±0.7, P<0.05)(mmol/L), TC(6.5±1.8, 4.6±0.9, 4.2 + 1.0, P<0. 05) (mmol/L)and LDL-c (3. 6 ±1.2, 2. 8 ±0.8, 2. 7 ±0.2, P<0.01) (mmol/L), 2 hour glucose after OGTT(2hPG) (18. 6 ±3.0, 12.7 ±2.3, 11.4±2.0, P<0. 01) (mmol/L), HOMA-IR(3. 2 ± 1. 7, 2.6±1.6, 2. 5 ±1.3, P<0. 05). Postoperative levels of HDL-c (1. 2 ± 0. 1, 1. 4 ± 0. 4, 1. 4 ± 0. 2, P<0. 01) ( mmol/L) , 2hIns (17. 2 ±3.4, 26. 3 ±4.7, 28. 6 ±4.1, P<0. 01) (mU/L)and 2hC-p(4. 2 ± 1. 0, 6. 3 ± 1. 5, 6. 2 ± 1.4,P<0. 01 ) ( nmol/L) were significantly higher than that of the pre-operative values ( P<0. 01 ).Conclusions Roux-en-Y gastric bypass significantly improves the metabolism of carbohydrate and lipid in type 2 diabetes patients with BMI 24-29, and the effects are not associated with weight loss.