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Circulating omentin concentration increases after weight loss
José María Moreno-Navarrete1, Victoria Catalán, Francisco Ortega
1Service of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi) Hospital Dr Josep Trueta, Girona, 17007, CIBEROBN (CB06/03/010), Spain. jmfernandezreal.girona.ics@gencat.cat.
Nutrition & Metabolism
|April 13, 2010
Summary
Weight loss improves insulin sensitivity and increases circulating omentin-1 levels. This novel adipokine
Area of Science:
- Endocrinology
- Metabolic Syndrome
- Adipokine Research
Background:
- Omentin-1, a novel adipokine from visceral adipose tissue, is linked to insulin resistance and obesity.
- Understanding omentin-1's role in metabolic health is crucial for developing targeted interventions.
Purpose of the Study:
- To investigate the impact of weight loss-induced improvements in insulin sensitivity on circulating omentin-1 concentrations.
- To explore the relationship between omentin-1 levels and key metabolic variables before and after weight loss.
Main Methods:
- A cohort of 35 obese individuals (18 men, 17 women) underwent a hypocaloric weight loss program.
- Circulating omentin-1 concentrations were measured using ELISA before and after the intervention.
- Metabolic variables, including BMI, body weight, fat mass, leptin, fasting insulin, and HOMA, were assessed.
Main Results:
- Baseline omentin-1 levels showed significant negative correlations with BMI, body weight, fat mass, leptin, and fasting insulin.
- Following weight loss, circulating omentin-1 concentrations significantly increased (p < 0.001).
- The increase in omentin-1 was associated with improved insulin sensitivity (decreased HOMA and fasting insulin) and reduced BMI.
Conclusions:
- Weight loss and subsequent improvements in insulin sensitivity lead to a significant increase in circulating omentin-1 levels.
- Omentin-1 may serve as a valuable biomarker for metabolic improvements, similar to adiponectin.
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