PMID- 12833107 OWN - NLM STAT- MEDLINE DCOM- 20030715 LR - 20140603 VI - 27 IP - 6 DP - 2003 Jun TI - Exchanging carbohydrates for monounsaturated fats in energy-restricted diets: effects on metabolic profile and other cardiovascular risk factors. PG - 648-56 AB - OBJECTIVE: To investigate whether improvements in cardiovascular risk factors, as observed in energy-balance conditions after exchanging carbohydrates (CHO) for monounsaturated (MUFA) fats, are also observed in energy-restricted conditions. DESIGN: Longitudinal, clinical intervention study using two types of energy-restricted diets (-30% of initial energy intake) with similar levels of saturated and polyunsaturated fats: a high CHO diet (55% of energy from CHOs, 10% from MUFAs) and a high MUFA diet (40% of energy from CHOs, 25% from MUFAs). SUBJECTS: A total of 32 overweight subjects (nine males, 23 females, BMI: 26-45 kg/m(2)). MEASUREMENTS: Body weight, serum lipids, fasting plasma insulin and phospholipid fatty acid composition of red blood cells were measured at baseline and after 8 weeks. Various oxidative status parameters (plasma lipid hydroperoxides, total plasma antioxidant capacity, plasma uric acid and vitamin E) and serum-induced smooth muscular cell (SMC) proliferation were also measured at these time points. RESULTS: Weight loss (1.1 kg/week over the first 4 weeks and 6.7 kg at week 8) was not significantly affected by the diet composition. Both diets reduced significantly total serum cholesterol, but the MUFA-rich diet showed better effects on fasting serum triacylglycerol (TG) than the CHO-rich diet: 1.18 vs 1.51 mmol/l for the MUFA-rich diet (after vs before, P<0.05) and 1.42 vs 1.62 for the CHO-rich diet. After 8 weeks, plasma vitamin E concentrations were positively associated with the oleic acid level of red blood cell phospholipids and showed opposite variations in both diets (increase with the MUFA-rich diet and decrease with the CHO-rich diet). Relative changes in SMC proliferation induced by sera were negatively associated with the ratio oleic:linoleic acid of red blood cell phospholipids and were significantly higher with the CHO-rich diet. CONCLUSIONS: The MUFA-rich diet showed better effects on serum TG than the CHO-rich diet, even with energy restriction and weight loss. The results suggest also a protective effect of oleic acid on oxidative stress and SMC proliferation, two other important cardiovascular risk factors. FAU - Colette, C AU - Colette C AD - Laboratory of Human Nutrition and Atherogenesis, University Institute of Clinical Research, Montpellier, Cedex, France. colette@iurc1.iurc.montp.inserm.fr FAU - Percheron, C AU - Percheron C FAU - Pares-Herbute, N AU - Pares-Herbute N FAU - Michel, F AU - Michel F FAU - Pham, T-C AU - Pham TC FAU - Brillant, L AU - Brillant L FAU - Descomps, B AU - Descomps B FAU - Monnier, L AU - Monnier L LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PL - England TA - Int J Obes Relat Metab Disord JT - International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity JID - 9313169 RN - 0 (Blood Glucose) RN - 0 (Cholesterol, HDL) RN - 0 (Cholesterol, LDL) RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Fatty Acids, Monounsaturated) RN - 0 (Fatty Acids, Unsaturated) RN - 0 (Insulin) SB - IM MH - Animals MH - Blood Glucose/metabolism MH - Cells, Cultured MH - Cholesterol, HDL/metabolism MH - Cholesterol, LDL/metabolism MH - Dietary Carbohydrates/*metabolism MH - Dietary Fats/*metabolism MH - Fatty Acids, Monounsaturated/*metabolism MH - Fatty Acids, Unsaturated/metabolism MH - Female MH - Humans MH - Insulin/blood MH - Longitudinal Studies MH - Male MH - Myocytes, Smooth Muscle/metabolism MH - Rats MH - Rats, Wistar MH - Weight Loss/*physiology EDAT- 2003/07/02 05:00 MHDA- 2003/07/16 05:00 CRDT- 2003/07/02 05:00 PHST- 2003/07/02 05:00 [pubmed] PHST- 2003/07/16 05:00 [medline] PHST- 2003/07/02 05:00 [entrez] AID - 0802299 [pii] AID - 10.1038/sj.ijo.0802299 [doi] PST - ppublish SO - Int J Obes Relat Metab Disord. 2003 Jun;27(6):648-56. doi: 10.1038/sj.ijo.0802299.