PMID- 26355033 OWN - NLM STAT- MEDLINE DCOM- 20160613 LR - 20230411 IS - 1946-6242 (Electronic) IS - 1946-6234 (Print) IS - 1946-6234 (Linking) VI - 7 IP - 304 DP - 2015 Sep 9 TI - Excessive caloric intake acutely causes oxidative stress, GLUT4 carbonylation, and insulin resistance in healthy men. PG - 304re7 LID - 10.1126/scitranslmed.aac4765 [doi] AB - Obesity-linked insulin resistance greatly increases the risk for type 2 diabetes, hypertension, dyslipidemia, and non-alcoholic fatty liver disease, together known as the metabolic or insulin resistance syndrome. How obesity promotes insulin resistance remains incompletely understood. Plasma concentrations of free fatty acids and proinflammatory cytokines, endoplasmic reticulum ( ER) stress, and oxidative stress are all elevated in obesity and have been shown to induce insulin resistance. However, they may be late events that only develop after chronic excessive nutrient intake. The nature of the initial event that produces insulin resistance at the beginning of excess caloric intake and weight gain remains unknown. We show that feeding healthy men with ~6000 kcal/day of the common U.S. diet [~50% carbohydrate (CHO), ~ 35% fat, and ~15% protein] for 1 week produced a rapid weight gain of 3.5 kg and the rapid onset (after 2 to 3 days) of systemic and adipose tissue insulin resistance and oxidative stress but no inflammatory or ER stress. In adipose tissue, the oxidative stress resulted in extensive oxidation and carbonylation of numerous proteins, including carbonylation of GLUT4 near the glucose transport channel, which likely resulted in loss of GLUT4 activity. These results suggest that the initial event caused by overnutrition may be oxidative stress, which produces insulin resistance, at least in part, via carbonylation and oxidation-induced inactivation of GLUT4. CI - Copyright (c) 2015, American Association for the Advancement of Science. FAU - Boden, Guenther AU - Boden G AD - Division of Endocrinology/Diabetes/Metabolism and the Clinical Research Unit, Temple University School of Medicine, Philadelphia, PA 19140, USA. bodengh@tuhs.temple.edu smerali@temple.edu. FAU - Homko, Carol AU - Homko C AD - Division of Endocrinology/Diabetes/Metabolism and the Clinical Research Unit, Temple University School of Medicine, Philadelphia, PA 19140, USA. FAU - Barrero, Carlos A AU - Barrero CA AD - Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery, Proteomics/Metabolomics Facility, Temple University School of Pharmacy, Philadelphia, PA 19140, USA. FAU - Stein, T Peter AU - Stein TP AD - Department of Surgery, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA. FAU - Chen, Xinhua AU - Chen X AD - Department of Obstetrics and Gynecology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA. FAU - Cheung, Peter AU - Cheung P AD - Division of Endocrinology/Diabetes/Metabolism and the Clinical Research Unit, Temple University School of Medicine, Philadelphia, PA 19140, USA. FAU - Fecchio, Chiara AU - Fecchio C AD - Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery, Proteomics/Metabolomics Facility, Temple University School of Pharmacy, Philadelphia, PA 19140, USA. FAU - Koller, Sarah AU - Koller S AD - Department of Surgery, Temple University School of Medicine, Philadelphia, PA 19140, USA. FAU - Merali, Salim AU - Merali S AD - Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery, Proteomics/Metabolomics Facility, Temple University School of Pharmacy, Philadelphia, PA 19140, USA. bodengh@tuhs.temple.edu smerali@temple.edu. LA - eng GR - R01 DK090588/DK/NIDDK NIH HHS/United States GR - R01-DK090588/DK/NIDDK NIH HHS/United States PT - Clinical Trial PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Glucose Transporter Type 4) RN - 0 (Reactive Oxygen Species) RN - 0 (SLC2A4 protein, human) SB - IM MH - Adipose Tissue/metabolism MH - *Energy Intake MH - Glucose Transporter Type 4/*metabolism MH - *Health MH - Humans MH - *Insulin Resistance MH - Male MH - Middle Aged MH - Models, Molecular MH - Overnutrition/metabolism/pathology MH - Oxidation-Reduction MH - *Oxidative Stress MH - *Protein Carbonylation MH - Protein Processing, Post-Translational MH - Reactive Oxygen Species/metabolism PMC - PMC5600191 MID - NIHMS750570 EDAT- 2015/09/12 06:00 MHDA- 2016/06/14 06:00 PMCR- 2017/09/15 CRDT- 2015/09/11 06:00 PHST- 2015/09/11 06:00 [entrez] PHST- 2015/09/12 06:00 [pubmed] PHST- 2016/06/14 06:00 [medline] PHST- 2017/09/15 00:00 [pmc-release] AID - 7/304/304re7 [pii] AID - 10.1126/scitranslmed.aac4765 [doi] PST - ppublish SO - Sci Transl Med. 2015 Sep 9;7(304):304re7. doi: 10.1126/scitranslmed.aac4765.