Observational Study of Metabolic Responses to Bariatric Surgery

This observational study is looking at how bariatric surgery (weight loss surgery) affects the body's metabolism in people with morbid obesity. Researchers will collect small samples of fat during your surgery, along with blood, urine, and stool samples before and after surgery. They want to understand the genetic and biomechanical markers (signs in your body) in fat tissue. You might be able to join if you are between 18 and 55 years old, meet NIH criteria for bariatric surgery, and have controlled dyslipidemia (unhealthy cholesterol levels) or impaired glucose metabolism (how your body uses sugar) or type 2 diabetes. The main goal is to measure the strength of white adipose tissue (fat tissue). The study status is unclear, and it aims to include 500 participants.

Study design
This is an observational study, meaning researchers will collect information without giving you a specific treatment. It aims to include 500 participants.
What's involved
You would complete pre-operative labs, testing, and counseling. During surgery, tissue samples will be collected. Blood, urine, and fecal samples will be collected before surgery, and additional blood/urine samples will be collected during post-surgery lab visits.
Compensation
Not stated in the trial record.
Follow-up
You will be observed for weight loss and resolution of other health conditions after surgery, with additional blood/urine samples collected at designated times post-surgery.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT02024542

Metabolic Responses to Bariatric Surgery

Recruiting
Not specifiedAges 18–55Observational
University of California, Davis
~500 participants
Updated 2026-05-18 on ClinicalTrials.gov
What's tested:Surgery

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Tensile Strength of White Adipose Tissue
Measured over July 2012
Morbid Obesity
1 sites across 1 states
California1
  • Mohamed R Ali, MD · PRINCIPAL_INVESTIGATOR · University of California Davis Health System

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Eligibility criteria

Inclusion

Meet NIH Criteria for Bariatric Surgery
Between the Age of 18-55
Dyslipidemia controlled with medication
Impaired glucose metabolism or type 2 diabetes

Exclusion

Uncontrolled Metabolic syndrome (uncontrolled diabetes, htn, dyslipidemia), one or all conditions.
  • Tensile Strength of White Adipose TissueJuly 2012

    During the research tissue samples were compared between healthy obese patients (no diabetes, controlled HTN, no dyslipidemia) with tissue samples collected on non-healthy obese patients (type II diabetes) and using fat collected from mice as a control.