Mahasampath Gowri S1, Belavendra Antonisamy2, Finney S Geethanjali3, Nihal Thomas4, Felix Jebasingh4, Thomas V Paul4, Fredrik Karpe5,6, Clive Osmond7, Caroline H D Fall7, Senthil K Vasan8,9. 1. Department of Biostatistics, Christian Medical College, Vellore, India. gowricmc@gmail.com. 2. Department of Biostatistics, Christian Medical College, Vellore, India. 3. Department of Clinical Biochemistry, Christian Medical College, Vellore, India. 4. Department of Endocrinology, Diabetes and Metabolism, Christian Medical College, Vellore, India. 5. Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK. 6. NIHR Oxford Biomedical Research Centre, OUH Foundation Trust, Oxford, UK. 7. MRC Environmental Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK. 8. Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK. senthil.vasan@ocdem.ox.ac.uk. 9. MRC Environmental Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK. senthil.vasan@ocdem.ox.ac.uk.
Abstract
BACKGROUND: To examine the associations of total and regional adiposity with metabolic and cardiovascular disease (CVD) risk markers. METHODS: This cross-sectional study included 1080 (53.8% men, aged 39-44 years) individuals from South India. Anthropometry (height, weight, waist and hip circumference), body composition assessment using dual-energy X-ray absorptiometry (DXA), blood pressure (BP), and plasma glucose, insulin and lipids were measured. Regression analysis was used to examine associations of standardized fat measurements with type 2 diabetes (T2D), insulin resistance (IR), hypertension and hypertriglyceridemia and continuous measurements of BP, glucose, insulin, HOMA-IR and lipids. Contour plots were constructed to visualize the differential effect of upper and lower fat depots. RESULTS: DXA-measured fat depots were positively associated with metabolic and CVD risk markers. After adjusting for fat mass index, upper body fat remained positively, while lower body fat was negatively associated with risk markers. A one standard deviation (SD) increase in android fat showed higher odds ratios (ORs) for T2D (6.59; 95% CI 3.17, 13.70), IR (4.68; 95% CI 2.31, 9.50), hypertension (2.57; 95% CI 1.56, 4.25) and hypertriglyceridemia (6.39; 95% CI 3.46, 11.90) in men. A 1 SD increase in leg fat showed a protective effect with ORs for T2D (0.42; 95% CI 0.24, 0.74), IR (0.31; 95% CI 0.17, 0.57) and hypertriglyceridemia (0.61; 95% CI 0.38, 0.98). The magnitude of the effect was greater with DXA-measured fat compared with anthropometry. CONCLUSION: At any level of total body fat, upper and lower body fat depots demonstrate opposite risk associations with metabolic and CVD risk markers in Asian Indians.
BACKGROUND: To examine the associations of total and regional adiposity with metabolic and cardiovascular disease (CVD) risk markers. METHODS: This cross-sectional study included 1080 (53.8% men, aged 39-44 years) individuals from South India. Anthropometry (height, weight, waist and hip circumference), body composition assessment using dual-energy X-ray absorptiometry (DXA), blood pressure (BP), and plasma glucose, insulin and lipids were measured. Regression analysis was used to examine associations of standardized fat measurements with type 2 diabetes (T2D), insulin resistance (IR), hypertension and hypertriglyceridemia and continuous measurements of BP, glucose, insulin, HOMA-IR and lipids. Contour plots were constructed to visualize the differential effect of upper and lower fat depots. RESULTS: DXA-measured fat depots were positively associated with metabolic and CVD risk markers. After adjusting for fat mass index, upper body fat remained positively, while lower body fat was negatively associated with risk markers. A one standard deviation (SD) increase in android fat showed higher odds ratios (ORs) for T2D (6.59; 95% CI 3.17, 13.70), IR (4.68; 95% CI 2.31, 9.50), hypertension (2.57; 95% CI 1.56, 4.25) and hypertriglyceridemia (6.39; 95% CI 3.46, 11.90) in men. A 1 SD increase in leg fat showed a protective effect with ORs for T2D (0.42; 95% CI 0.24, 0.74), IR (0.31; 95% CI 0.17, 0.57) and hypertriglyceridemia (0.61; 95% CI 0.38, 0.98). The magnitude of the effect was greater with DXA-measured fat compared with anthropometry. CONCLUSION: At any level of total body fat, upper and lower body fat depots demonstrate opposite risk associations with metabolic and CVD risk markers in Asian Indians.
Authors: Scott A Lear; Simi Kohli; Gregory P Bondy; André Tchernof; Allan D Sniderman Journal: J Clin Endocrinol Metab Date: 2009-10-09 Impact factor: 5.958
Authors: Peder Wiklund; Fredrik Toss; Lars Weinehall; Göran Hallmans; Paul W Franks; Anna Nordström; Peter Nordström Journal: J Clin Endocrinol Metab Date: 2008-08-26 Impact factor: 5.958