Plasma Levels of Triglycerides and IL-6 Are Associated With Weight Regain and Fat Mass Expansion

Long-term weight loss (WL) maintenance is the biggest challenge for overweight and obesity because of the almost unavoidable phenomenon of partial or even total weight regain (WR) after WL. In the present study we investigated the relations of (the changes of) adipocyte size and other risk biomarker...

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Published in:The journal of clinical endocrinology and metabolism 2022-06, Vol.107 (7), p.1920-1929
Main Authors: Qiao, Qi, Bouwman, Freek G, van Baak, Marleen A, Roumans, Nadia J T, Vink, Roel G, Mariman, Edwin C M
Format: Article
Language:English
Subjects:
Adipose tissues
Analysis
Angiotensin
Binding proteins
Clinical
Dextrose
Enzymes
Ethylenediaminetetraacetic acid
Fatty acids
Glucose
Insulin
Insulin resistance
Interleukins
Protein binding
Reducing diets
Retinoids
Triglycerides
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Summary:Long-term weight loss (WL) maintenance is the biggest challenge for overweight and obesity because of the almost unavoidable phenomenon of partial or even total weight regain (WR) after WL. In the present study we investigated the relations of (the changes of) adipocyte size and other risk biomarkers with WR during the follow-up of the Yoyo dietary intervention. In this randomized controlled study, 48 overweight/obese participants underwent a very-low-calorie diet to lose weight, followed by a weight-stable period of 4 weeks and a follow-up period of 9 months. Anthropometric measurements, adipocyte volume of abdominal subcutaneous adipose tissue, and plasma metabolic parameters (free fatty acids [FFAs], triglycerides [TGs], total cholesterol, glucose, insulin, homeostasis model assessment of insulin resistance [HOMA-IR], interleukin 6 [IL-6], angiotensin-converting enzyme [ACE] activity, retinol binding protein 4 [RBP4]) at the beginning and the end of follow-up were analyzed. Our results show that changes of TGs, IL-6, HOMA-IR, and ACE are significantly positively correlated with WR. Multiple linear regression analysis shows that only TG and IL-6 changes remained significantly correlated with WR and increased body fat mass. Moreover, the change in HOMA-IR was tightly correlated with the change in TGs. Surprisingly, change in adipocyte volume during follow-up was not correlated with WR nor with other factors, but positive correlations between adipocyte volume and HOMA-IR were found at the beginning and end of the follow-up. These results suggest that TGs and IL-6 are independently linked to WR via separate mechanisms, and that HOMA-IR and adipocyte volume may indirectly link to WR through the change of plasma TGs.
ISSN:0021-972X
1945-7197
DOI:10.1210/clinem/dgac198