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Wali, J.A.* ; Koay, Y.C.* ; Chami, J.* ; Wood, C.* ; Corcilius, L.* ; Payne, R.J.* ; Rodionov, R.N.* ; Birkenfeld, A.L. ; Samocha-Bonet, D.* ; Simpson, S.J.* ; O'Sullivan, J.F.*

Nutritional and metabolic regulation of the metabolite dimethylguanidino valeric acid: An early marker of cardiometabolic disease.

Am. J. Physiol. Endocrinol. Metab. 319, E509-E518 (2020)
Verlagsversion DOI
Open Access Gold
Dimethylguanidino valeric acid (DMGV) is a marker of fatty liver disease. incident coronary artery disease, cardiovascular mortality, and incident diabetes. Recently. it was reported that circulating DMGV levels correlated positively with consumption of sugary beverages and negatively with intake of fruits and vegetables in three Swedish community-based cohorts. Here, we validate these results in the Framingham Heart Study Third Generation Cohort. Furthermore, in mice, diets rich in sucrose or fat significantly increased plasma DMGV concentrations. DMGV is the product of metabolism of asymmetric dimethylarginine (ADMA) by the hepatic enzyme AGXT2. ADMA can also be metabolized to citrulline by the cytoplasmic enzyme DDAH1. We report that a high-sucrose diet induced conversion of ADMA exclusively into DMGV (supporting the relationship with sugary beverage intake in humans), while a high-fat diet promoted conversion of ADMA to both DMGV and citrulline. On the contrary. replacing dietary native starch with high-fiber-resistant starch increased ADMA concentrations and induced its conversion to citrulline, without altering DMGV concentrations. In a cohort of obese nondiabetic adults, circulating DMGV concentrations increased and ADMA levels decreased in those with either liver or muscle insulin resistance. This was similar to changes in DMGV and ADMA concentrations found in mice fed a high-sucrose diet. Sucrose is a disaccharide of glucose and fructose. Compared with glucose, incubation of hepatocytes with fructose significantly increased DMGV production. Overall, we provide a comprehensive picture of the dietary determinants of DMGV levels and association with insulin resistance.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Dmgv ; Insulin Resistance ; Liver ; Metabolism ; Nutrition; Fatty Liver-disease; Fructose Corn Syrup; Insulin-resistance; Asymmetric Dimethylarginine; Citrulline; Restriction; Consumption; Prevalence; Mechanisms; Beverages
Sprache englisch
Veröffentlichungsjahr 2020
HGF-Berichtsjahr 2020
ISSN (print) / ISBN 0193-1849
e-ISSN 1522-1555
Zeitschrift American Journal of Physiology - Endocrinology and Metabolism
Quellenangaben Band: 319, Heft: 3, Seiten: E509-E518 Artikelnummer: , Supplement: ,
Verlag American Physiological Society
Verlagsort 9650 Rockville Pike, Bethesda, Md 20814 Usa
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Diabetes Research and Metabolic Diseases (IDM)
POF Topic(s) 90000 - German Center for Diabetes Research
Forschungsfeld(er) Helmholtz Diabetes Center
PSP-Element(e) G-502400-001
Förderungen National Institute of Diabetes and Digestive and Kidney Diseases Grant
National Health and Medical Research Council (NHMRC) Peter Doherty Biomedical Fellowship
Diabetes Australia Project
Sydney Medical School Foundation Chapman Fellowship
New South Wales (NSW) Health Early-Mid Career Fellowship
NSW Clinician-Scientist Award
Garvan Research Foundation
National Heart, Lung, and Blood Institute (NHLBI)
Boston University
Massachusetts General Hospital Departmental funding
Heart Research Institute
DOI 10.1152/ajpendo.00207.2020
WOS ID WOS:000572368900005
Scopus ID 85089796439
Erfassungsdatum 2020-10-22
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