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NCT07335549Completed

Istmin Levels in Laparoscopik Sleeve Gastrectomy

Effect of Laparoscopic Sleeve Gastrectomy on Blood Isthmın Levels: A Prospective Cohort Study

Source: ClinicalTrials.gov · Last updated 13 Jan 2026

Brief summary (registry, in English)

Obesity is a multifactorial disease which has become a public health problem with increasing frequency, especially in recent years. Obesity causes many health problems with its negative effects on organs, systems, and psychosocial status. It is a serious risk factor for many diseases and also causes a significant increase in morbidity and mortality in these diseases. Although dietary treatments and medical treatment options are frequently used, surgical options are still the most effective treatment. Bariatric and metabolic surgical techniques are frequently applied, especially in patients with advanced obesity and obesity-related comorbidities. The most commonly applied bariatric metabolic surgical techniques, as in our clinic, are laparoscopic sleeve gastrectomy (LSG) and Roux-en-y gastric bypass procedures. The role of adipokines, secreted from adipose tissue and thought to play a role in the development of obesity, is quite important in the obesity mechanism, as they are effective not only in energy processes but also in metabolic processes. These adipokines secreted by adipose tissue play an active role in many mechanisms in the body, including vasoactivity, oxidative processes, immunity, lipid and glucose metabolism. Adipokines function actively in many target organs such as the pancreas, liver, and brain. Isthmin, a relatively new adipokine expressed from brown and white adipocytes, also affects many systems like other adipokines. Studies have shown that Isthmin plays an active role in glucose and lipid metabolism, and it has been reported to play a role in many metabolic processes, from insulin resistance to hepatic steatosis. The aim of this study is to investigate whether isthmin levels change before and after surgery in patients undergoing LSG for severe obesity, given that isthmin is thought to be associated with obesity and insulin resistance, particularly by affecting the appetite center in metabolism.

Status (registry)
Completed
Study type
Observational
Enrollment
40 (actual)
First submitted
2 Jan 2026
Start date
1 Jul 2025
Primary completion date
1 Jan 2026
Lead sponsor
Saglik Bilimleri Universitesi
Diseases
Obesity
NCT number
NCT07335549

What you commit to

  • Study type: Observational
  • Participants enrolled: 40
  • From 1 Jul 2025 to the primary completion date, 1 Jan 2026
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Patients with rheumatological diseases (rheumatoid arthritis, SLE, etc.)
  • Patients with chronic kidney and liver failure
  • Patients diagnosed with Diabetes Mellitus
  • Patients with malignancy

Age

  • Patients under 18 years of age

Other

  • Overweight patients with a Body Mass Index \<40 kg/m2 and no comorbidities
  • Patients who do not wish to participate in the study

Who the study is looking for

  • Being over 18 years of age
  • Being diagnosed with severe obesity
  • Patients who do not wish to participate in the study

Age in the registry: 18 years to - · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Elazig Fethi Sekin City Hospital
Coordinator of this site? Confirm its status
ElâzığTurkey (Türkiye)Unknown status

This page is information, not medical advice. Discuss any trial with your doctor.