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- W4387053069 abstract "Elevated postprandial triglycerides (ppTG) are an indicator of impaired metabolic health known to be influenced by visceral adipose tissue (VAT) levels. Incremental area under the curve (iAUC) is a summary measure of postprandial TG responses and varies substantially even within a population with central obesity. Skeletal muscle impacts TG clearance and, as a result, fat free mass (FFM) may be an important mediator of ppTG to consider in individuals with central obesity. PURPOSE: To investigate the contribution of VAT, FFM, and fat mass (FM) to ppTG iAUC in response to a high-fat meal in adults with central obesity. METHODS: Adults (n = 78) aged 18-70 with elevated waist circumference (99.7 ± 13.4 cm women, 104.2 ± 9.3 cm men (mean ± SD)) completed a high-fat meal challenge (50 g FAT, 54 g CHO, 12 g PRO) with blood collected at fasting and hourly timepoints for 4 hours postprandially. Serum TG were summarized as iAUC (TGiAUC). Bioelectrical impedance analysis was used to measure VAT, FM %, and FFM%. Linear modeling was utilized to determine which physiological measures contributed most to ppTG and to predict HIGH (top 1/3) versus LOW (bottom 1/3) TGiAUC responses. RESULTS: VAT was the strongest predictor of TGiAUC response (β = 9.2, p = 0.02) with an increase in ppTG observed with increasing VAT. FM% and FFM% did not predict TGAUC (p = 0.28 and 0.12, respectively). Average TGiAUC of HIGH vs LOW responders was 9.12 ± 2.55 and 1.51 ± 0.95 mmol/L x 4 hours, respectively. VAT was the only significant predictor of HIGH versus LOW TGiAUC group (p < 0.01). CONCLUSION: In individuals with elevated waist circumference, ppTG response to a high-fat meal is best predicted by VAT. Alternative physical measures including overall adiposity and FFM were not discriminating factors. These findings stress the importance of strategies to decrease VAT in improving regulation of postprandial lipemia in at-risk adults. Supported by USDA-ARS Pulse Crop Health Initiative 58-3060-9-040 and USDA-NIFA 2017-67018-26367," @default.
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- W4387053069 date "2023-09-01" @default.
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- W4387053069 title "Anthropometric Predictors Of The Postprandial Triglyceride Response In A Metabolically At-risk Cohort" @default.
- W4387053069 doi "https://doi.org/10.1249/01.mss.0000984120.27263.84" @default.
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