Relationship Between Serum Resistin Levels and Reduction in Visceral Fat in Patients Undergoing Sleeve Gastrectomy Due to Morbid Obesity

April 27, 2026 updated by: Sercan YUKSEL, MD
This study aims to investigate whether a specific protein in the blood, called resistin, can help doctors predict how much dangerous internal fat a patient will lose following weight loss surgery. Sleeve gastrectomy is a common and effective procedure that reduces the stomach's size to help patients lose weight and improve their metabolic health. Beyond just losing weight, it is vital to reduce visceral fat-the fat stored around internal organs-which is closely linked to inflammation and conditions like Type 2 Diabetes. Resistin is a marker known to contribute to insulin resistance and is typically higher in individuals with significant abdominal fat. By measuring resistin levels before surgery, we want to determine if this protein can serve as a guide to predict a patient's internal fat loss and overall metabolic recovery. Ultimately, this research could help healthcare providers better understand the hormonal changes that occur during weight loss and identify which patients may experience the most significant health improvements after the procedure.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • Basaksehir
      • Istanbul, Basaksehir, Turkey (Türkiye), 34480
        • Basaksehir Cam and Sakura City Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients applying to Başakşehir Çam Sakura City Hospital General Surgery Clinic for bariatric surgery

Description

Inclusion Criteria:

  • Patients aged 18 to 75
  • International Classification of Diseases (ICD) code E66 diagnosis (obesity)
  • Patients who have given consent for sleeve gastrectomy
  • Patients who are suitable for general anesthesia

Exclusion Criteria:

  • Patients who did not give consent to be included in the study
  • Patients who are scheduled for surgery other than sleeve gastrectomy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Sleeve Gastrectomy Patients
Patients who meet inclusion criteria for the study undergoing sleeve gastrectomy
Procedure: Laparoscopic Sleeve Gastrectomy
Laparoscopic Sleeve Gastrectomy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in body mass index at 8 months
Time Frame: 8 months after surgery
8 months after surgery

Secondary Outcome Measures

Outcome Measure
Time Frame
Change in visseral fat at 8 months
Time Frame: 8 months after surgery
8 months after surgery
Change in basal metabolic rate at 8 months
Time Frame: 8 months after surgery
8 months after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sercan YUKSEL, MD

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2025

Primary Completion (Actual)

April 27, 2026

Study Completion (Actual)

April 27, 2026

Study Registration Dates

First Submitted

April 27, 2026

First Submitted That Met QC Criteria

April 27, 2026

First Posted (Actual)

May 4, 2026

Study Record Updates

Last Update Posted (Actual)

May 4, 2026

Last Update Submitted That Met QC Criteria

April 27, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2024-KAEK-11

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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