NCT01982019

Influence of Bariatric Surgery on Serum Levels of 26RFa

Determination of Serum Levels of the Orexigenic Neuropeptide 26RFa in Obese Female Patients With or Without Diabetes. Influence of Bariatric Surgery

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 62 (actual)
• Sponsor: University Hospital, Rouen · Academic / Other
• Sex: Female
• Age: 30 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

The 26RFa was recently discovered in the hypothalamus. In rodents it seems to be related to glucose metabolism and obesity. However, no data exists in obese patients or in patients with diabetes. Thus, the investigators planned to dose 26RFa level in obese patients before and after a sleeve gastrectomy in order to study the effect of a weight loss on its levels. The investigators will also dose 26RFa concentrations in obese patients with type 2 diabetes and in healthy volunteers with normal weight. Comparison of these different groups will permit us to better understand the 26RFa involvement in glucose concentration regulation and in obesity.

Detailed description

The 26RFa is an orexigenic neuropeptide of the Rfamides family, localized in two hypothalamic nuclei. Its increase induced obesity and it is elevated in obese rodents. In addition, in human, it is elevated in anorexic patients. However, no data exists in obese patients or in patients with diabetes. Thus, the investigators planned to measure 26RFa level in obese patients before and after a sleeve gastrectomy in order to study the effect of a weight loss on its levels. The investigators will also dose 26RFa concentrations in obese patients with type 2 diabetes and in healthy volunteers with normal weight. Comparison of these different groups will permit us to better understand the 26RFa involvement in glucose concentration regulation and in obesity. The investigators will also measure other hormones known to have a major role in glucose metabolism and obesity (ie. insulin, adiponectin). A meal test will be given to the volunteers in order to study the kinetics' of these molecules during and after food intake.

Conditions

• Diabetes
• Obesity

Interventions

Type	Name	Description
BEHAVIORAL	Meal test taking and hormones measure including 26RFa	Meal test taking and blood sampling for the measure of 26RFa and classical hormones implicated in glucose control and obesity

Timeline

• Start date: 2014-02-04
• Primary completion: 2020-06-29
• Completion: 2020-06-29
• First posted: 2013-11-13
• Last updated: 2026-02-06

Locations

1 site across 1 country: France