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Cardiac and hepatic total postprandial FA uptake of NEFA+DFA has, however, never been reported in prediabetes with overweight. In this study, 20 individuals with impaired glucose tolerance (IGT) and 19 participants with normal glucose tolerance (NGT) and normal fasting glucose underwent postprandial studies with whole-body positron emission tomography\/computed tomography (PET\/CT) with oral [18F]fluoro-thia-heptadecanoic acid and dynamic PET\/CT with intravenous [11C]palmitate. Hepatic (97 [range 36\u2013215] mmol\/6 h vs. 68 [23\u2013132] mmol\/6 h, P = 0.03) but not cardiac (11 [range 4\u201324] mmol\/6 h vs. 8 [3\u201320] mmol\/6 h, P = 0.09) uptake of most sources of postprandial FA (NEFA + DFA uptake) integrated over 6 h was higher in IGT versus NGT. DFA accounted for lower fractions of total cardiac (21% [5\u201347] vs. 25% [9\u201339], P = 0.08) and hepatic (19% [6\u201352] vs. 28% [14\u201350], P = 0.04) uptake in IGT versus NGT. Increased adipose tissue DFA trapping predicted lower hepatic DFA uptake and was associated with higher total cardiac FA uptake. Hence, enhanced adipose tissue DFA trapping in the face of increased postprandial NEFA flux is insufficient to fully curb increased postprandial lean organ FA uptake in prediabetes with overweight (ClinicalTrials.gov; NCT02808182).<\/jats:p>","DOI":"10.2337\/db21-1097","type":"journal-article","created":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T09:22:31Z","timestamp":1656062551000},"page":"1891-1901","update-policy":"https:\/\/doi.org\/10.2337\/ada-journal-policies","source":"Crossref","is-referenced-by-count":18,"title":["Total Postprandial Hepatic Nonesterified and Dietary Fatty Acid Uptake Is Increased and Insufficiently Curbed by Adipose Tissue Fatty Acid Trapping in Prediabetes With Overweight"],"prefix":"10.2337","volume":"71","author":[{"given":"Run Zhou","family":"Ye","sequence":"first","affiliation":[{"name":"1Division of Endocrinology, Department of Medicine, Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Universit\u00e9 de Sherbrooke, 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