Impact of Changes in Muscle Secretome in the Remission of Type 2 Diabetes Mellitus Induced by Bariatric Surgery

Study Overview
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Brief Summary
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Bariatric surgery is recognized as a therapeutic modality of type 2 diabetes. The mechanisms of this remission of diabetes remain poorly understood. The aim of our research is to characterize the changes in muscle secretome induced by bariatric surgery and to determine their role in improving the insulin sensitivity of skeletal muscle and insulin secretion by the B cell responsible for the remission of diabetes.

Detailed Description
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Bariatric surgery is recognized as a therapeutic modality of type 2 diabetes. The mechanisms of this remission of diabetes remain poorly understood. The aim of our research is to characterize the changes in muscle secretome induced by bariatric surgery and to determine their role in improving the insulin sensitivity of skeletal muscle and insulin secretion by the B cell responsible for the remission of diabetes. This prospective study will be carried out in insulin-resistant diabetic patients or not in whom blood and muscle samples will be carried out before and after bariatric surgery

Official Title
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Impact of Changes in Muscle Secretome in the Remission of Type 2 Diabetes Mellitus Induced by Bariatric Surgery

Conditions
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Diabete Type 2

Intervention / Treatment
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* Diagnostic Test: Muscle biopsy and blood test


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age from 19 to 69 year-old Candidate for bariatric surgery BMI ≥ 35kg / m² with at least one subsequent comorbidity (SAS or type 2 diabetes mellitus or refractory HTA) or BMI ≥ 40kg / m² Non-diabetic or diabetic with HbA1c <7.5% without treatment except metformin Caucasian No pregnancy or breastfeeding No history of neoplasia in the last 5 years No history of uncontrolled endocrinopathy other than diabetes Informed consent signed by patient Exclusion Criteria: Non-caucasian Major Depression Hemorrhagic risk (biopsy) associated with taking anticoagulants/antiaggregants Known myopathy Systemic administration of steroids (> 1mg/kg in hydrocortisone) Hyperthyroidism Type 1 diabetes Psychological, familial, sociological or geographical condition potentially limiting compliance with the protocol Participation in other clinical drug studies Modification of anti-diabetic treatment during the month preceding surgery

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 69 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Muscle secretion<br>Characterize the changes in muscle secretion induced by bariatric surgery and determine their role in improving the insulin sensitivity of skeletal muscle and insulin secretion by B cell responsible for the remission of diabetes mellitus. | Diagnostic Test: Muscle biopsy and blood test<br>* Characterize the changes in muscle secretion induced by bariatric surgery and determine their role in improving the insulin sensitivity of skeletal muscle and insulin secretion by B cell responsible for the remission of diabetes mellitus.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Changes in myokine (muscle secretome) secretion induced by bariatric surgery |  | Level of myokines in culture media conditioned by muscle cells taken before and 3 months after bariatric surgery. |