L Knøsgaard1, K Kazankov2, N H Birkebæk3, P Holland-Fischer3, A Lange3, J Solvig4, A Hørlyck4, K Kristensen3, S Rittig3, H Vilstrup2, H Grønbæk2, A Handberg1,5. 1. Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark. 2. Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark. 3. Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark. 4. Department of Radiology, Aarhus University Hospital, Aarhus, Denmark. 5. Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
Abstract
BACKGROUND/ OBJECTIVES: Childhood obesity is a major health problem with serious long-term metabolic consequences. CD36 is important for the development of obesity-related complications among adults. We aimed to investigate circulating sCD36 during weight loss in childhood obesity and its associations with insulin resistance, dyslipidemia, hepatic fat accumulation and low-grade inflammation. SUBJECTS/ METHODS: The impact of a 10-week weight loss camp for obese children (N=113) on plasma sCD36 and further after a 12-month follow-up (N=68) was investigated. Clinical and biochemical data were collected, and sCD36 was measured by an in-house assay. Liver fat was estimated by ultrasonography and insulin resistance by the homeostasis model assessment (HOMA-IR). RESULTS: Along with marked weight loss, sCD36 was reduced by 21% (P=0.0013) following lifestyle intervention, and individual sCD36 reductions were significantly associated with the corresponding decreases in HOMA-IR, triglycerides and total cholesterol. The largest sCD36 decrease occurred among children who reduced HOMA-IR and liver fat. After 12 months of follow-up, sCD36 was increased (P=0.014) and the metabolic improvements were largely lost. CONCLUSIONS: Weight-loss-induced sCD36 reduction, coincident with improved insulin resistance, circulating lipids and hepatic fat accumulation, proposes that sCD36 may be an early marker of long-term health risk associated with obesity-related complications.
BACKGROUND/ OBJECTIVES:Childhood obesity is a major health problem with serious long-term metabolic consequences. CD36 is important for the development of obesity-related complications among adults. We aimed to investigate circulating sCD36 during weight loss in childhood obesity and its associations with insulin resistance, dyslipidemia, hepatic fat accumulation and low-grade inflammation. SUBJECTS/ METHODS: The impact of a 10-week weight losscamp for obesechildren (N=113) on plasma sCD36 and further after a 12-month follow-up (N=68) was investigated. Clinical and biochemical data were collected, and sCD36 was measured by an in-house assay. Liver fat was estimated by ultrasonography and insulin resistance by the homeostasis model assessment (HOMA-IR). RESULTS: Along with marked weight loss, sCD36 was reduced by 21% (P=0.0013) following lifestyle intervention, and individual sCD36 reductions were significantly associated with the corresponding decreases in HOMA-IR, triglycerides and total cholesterol. The largest sCD36 decrease occurred among children who reduced HOMA-IR and liver fat. After 12 months of follow-up, sCD36 was increased (P=0.014) and the metabolic improvements were largely lost. CONCLUSIONS: Weight-loss-induced sCD36 reduction, coincident with improved insulin resistance, circulating lipids and hepatic fat accumulation, proposes that sCD36 may be an early marker of long-term health risk associated with obesity-related complications.
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