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临床试验/NCT01330251
NCT01330251已完成不适用

Laihdutusleikkauksen Vaikutus Diabetekseen

University of Oulu1 个研究点 分布在 1 个国家目标入组 41 人开始时间: 2011年1月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
41
试验地点
1
主要终点
Changes in the oxidation of lipoproteins

研究概览

简要总结

This study will investigate the effects of gastric bypass surgery on type II diabetes. The study will recruit patients with type II diabetes having Roux-en-Y gastric bypass, patients without type II diabetes having Roux-en-Y gastric bypass, and control subjects (patients having gastroscopy, but no surgery). Targeted enrollment is 30 patients per group. Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy. Meal test with incretin measurements, and feces and blood samplings are performed before and after surgery

Hypotheses are:

  • The pathogenesis of type II diabetes is linked to changes in the expression of intestinal endocrine cells
  • The changes in the incretine excretion after the gastric bypass surgery partly explain the amelioration of type II diabetes
  • The oxidation of lipoprotein is diminished after the gastric bypass surgery slowing the development of atherosclerosis
  • The immunologic functions of the intestine are changed by the gastric bypass surgery attenuating systemic inflammation
  • The gastric bypass surgery changes cholesterol and bile acid metabolism
  • The gastric bypass surgery changes the fecal microbiota

Primary end points are:

  • Changes in the amounts of endocrine cells in ventricle, duodenum and jejunum
  • Changes in the incretine secretion studied with liquid meal test
  • Changes in the oxidation of lipoproteins
  • Changes in the immunologic markers in ventricle, duodenum and jejunum
  • Changes in the amounts of phytosterols, cholesterol metabolites and bile acids
  • Changes in fecal microbiota

研究设计

研究类型
Observational
观察模型
Case Control
时间视角
Prospective

入排标准

年龄范围
18 Years 至 65 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 未提供

排除标准

  • Diabetes (applies for control patients)
  • BMI over 30 (applies for control patients)
  • Insulin treatment
  • Oral corticosteroid treatment
  • Chronic inflammatory disease
  • Coeliac disease
  • Malignant disease

结局指标

主要结局

Changes in the oxidation of lipoproteins

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

Changes in the incretine secretion studied with liquid meal test

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

Changes in fecal microbiota

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

Changes in the immunologic markers in ventricle, duodenum and jejunum

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

Changes in the amounts of phytosterols, cholesterol metabolites and bile acids

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

Changes in the amounts of endocrine cells in ventricle, duodenum and jejunum

时间窗: baseline to 6 months

Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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