Abstract：
:The study investigates the effect of weight-maintaining high-sucrose (HSD) and high-fat (HFD) diets on plasma glucose and insulin concentrations in lean and obese women, and verifies the correlation between insulin profile and body composition. Lean (G1 group, n=6, BMI= 21.4 (20.2-22.8) kg/m2) and overweight/obese (G2 group, n=6, BMI 28.6 (25.1-32.1) kg/m2) women participated in the study. HSD (59% total carbohydrate with 23% sucrose; 28% lipid) or HFD (42% total carbohydrate with 1.3% sucrose; 45% lipid) diets were consumed under free-living conditions for 14 days. Anthropometry and body composition were assessed before and after HSD and HFD diets following-up. Fasting and postprandial (at 30, 60, 180 and 240 min) glucose and insulin were determined. HOMA-IR and QUICK index were also calculated. Fasting and postprandial glucose and insulin concentration did not differ significantly between groups or diets. However, there was a positive and significant correlation between plasma fasting and postprandial insulin concentrations and BMI, percentage of total body fat (% TBF) and HOMA-IR index. In addition, carbohydrate and sucrose intake presented a positive and significant correlation with insulin concentration and HOMA-IR at 180 min postprandial, after adjusting for energy intake and % TBF (p<0.05). These results suggest that altering the profile of the macronutrients in the diet can modify glycemia and insulinemia homeostasis, regardless of energy intake and adiposity. On the other hand, the overweight/obese women can maintain a stable metabolic profile with the habitual diet.
journal_name
J Physiol Biochemjournal_title
Journal of physiology and biochemistryauthors
Volp AC,Hermsdorff HH,Bressan Jdoi
10.1007/BF03168238subject
Has Abstractpub_date
2008-06-01 00:00:00pages
103-13issue
2eissn
1138-7548issn
1877-8755journal_volume
64pub_type
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