PMID- 19303972 OWN - NLM STAT- MEDLINE DCOM- 20090420 LR - 20220317 IS - 1532-8600 (Electronic) IS - 0026-0495 (Linking) VI - 58 IP - 4 DP - 2009 Apr TI - Beneficial effects of designed dietary fatty acid compositions on lipids in triacylglycerol-rich lipoproteins among Chinese patients with type 2 diabetes mellitus. PG - 510-8 LID - 10.1016/j.metabol.2008.11.010 [doi] AB - Elevated levels of postprandial triacylglycerol-rich lipoproteins (ppTRLs) are atherogenic. Patients with type 2 diabetes mellitus (T2DM) have exaggerated postprandial lipemia associated with elevation or prolonged residence of ppTRL remnants. We examined whether dietary fatty acid compositions (DFACs) decrease atherogenic lipid profiles in ppTRL subfractions in T2DM Chinese patients. A single-blind randomized controlled trial was conducted among 28 T2DM patients. Patients consumed 1 of 3 standardized DFAC-specific fat meals: equidominant (1:1:1), polyunsaturated fatty acid (PUFA)-dominant (PUFA-D, 1:1.7:2.3), or monounsaturated fatty acid (MUFA)-dominant (MUFA-D, 1:1.7:1.2) meals. Numbers in parenthesis, respectively, represent the ratio of saturated fatty acids, MUFA, and PUFA to saturated fatty acids. The MUFA-D meal was the control. Triacylglycerol and cholesterol levels were measured in Svedberg flotation rate (S(f)) greater than 400, S(f) 60 to 400, S(f) 20 to 60, and S(f) 12 to 20 ppTRL subfractions at fasting (0 hour) and 2, 4, and 6 hours after the consumption of the fat meals. Effects of DFACs on mean concentrations of triacylglycerols and cholesterol averaged over 0, 2, 4, and 6 hours in ppTRL subfractions were assessed using linear mixed models. Stability and robustness were validated with 1000 bootstrap replicates. Contrasted to the control, equidominant meal reduced 6-hour average triacylglycerol levels in S(f) greater than 400 (P = .002, bootstrap P < .05) and S(f) 20 to 60 (P = .02, bootstrap P < .05) subfractions, and decreased average S(f) 20 to 60 cholesterol (P = .04, bootstrap P < .05); PUFA-D decreased S(f) greater than 400 average triacylglycerol levels (P = .09, bootstrap P < .05). Bootstrap samples suggested that PUFA-D decreased average S(f) 20 to 60 cholesterol levels (bootstrap P < .05). Therefore, modifying DFACs attenuates the atherogenic lipid profile of ppTRLs in T2DM patients; but increasing PUFA ratio may be more feasible. FAU - Dai, Jun AU - Dai J AD - Nutrition and Health Sciences Program, Emory University, Atlanta, GA 30322, USA. jdai@indiana.edu FAU - Su, Yi-Xiang AU - Su YX FAU - Bartell, Scott AU - Bartell S FAU - Le, Ngoc-Anh AU - Le NA FAU - Ling, Wen-Hua AU - Ling WH FAU - Liang, Yi-Quan AU - Liang YQ FAU - Gao, Ling AU - Gao L FAU - Wu, Hai-Yan AU - Wu HY FAU - Veledar, Emir AU - Veledar E FAU - Vaccarino, Viola AU - Vaccarino V LA - eng SI - ClinicalTrials.gov/NCT00467168 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PT - Validation Study PL - United States TA - Metabolism JT - Metabolism: clinical and experimental JID - 0375267 RN - 0 (Dietary Fats) RN - 0 (Fatty Acids) RN - 0 (Lipoproteins) RN - 0 (Triglycerides) SB - IM MH - Aged MH - China MH - Diabetes Mellitus, Type 2/*metabolism MH - Dietary Fats/*therapeutic use MH - Fatty Acids/chemistry/*therapeutic use MH - Female MH - Humans MH - *Lipid Metabolism MH - Lipoproteins/*metabolism MH - Male MH - Middle Aged MH - Triglycerides/*metabolism EDAT- 2009/03/24 09:00 MHDA- 2009/04/21 09:00 CRDT- 2009/03/24 09:00 PHST- 2008/06/23 00:00 [received] PHST- 2008/11/24 00:00 [accepted] PHST- 2009/03/24 09:00 [entrez] PHST- 2009/03/24 09:00 [pubmed] PHST- 2009/04/21 09:00 [medline] AID - S0026-0495(08)00428-9 [pii] AID - 10.1016/j.metabol.2008.11.010 [doi] PST - ppublish SO - Metabolism. 2009 Apr;58(4):510-8. doi: 10.1016/j.metabol.2008.11.010.