Short-term exercise training does not stimulate skeletal muscle ATP synthesis in relatives of humans with type 2 diabetes (Articolo in rivista)

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Label
  • Short-term exercise training does not stimulate skeletal muscle ATP synthesis in relatives of humans with type 2 diabetes (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.2337/db08-1240 (literal)
Alternative label
  • Kacerovsky-Bielesz G.; Chmelik M.; Ling C.; Pokan R.; Szendroedi J.; Farukuoye M.; Kacerovsky M.; Schmid A. I.; Gruber S.; Wolzt M.; Moser E.; Pacini G.; Smekal G.; Groop L.; Roden, M. (2009)
    Short-term exercise training does not stimulate skeletal muscle ATP synthesis in relatives of humans with type 2 diabetes
    in Diabetes (N.Y.N.Y.)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Kacerovsky-Bielesz G.; Chmelik M.; Ling C.; Pokan R.; Szendroedi J.; Farukuoye M.; Kacerovsky M.; Schmid A. I.; Gruber S.; Wolzt M.; Moser E.; Pacini G.; Smekal G.; Groop L.; Roden, M. (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1, 5: Medical Department, Hanusch Hospital, Vienna, Austria - Karl-Landsteiner Institute for Endocrinology and Metabolism, Vienna, Austria/ 2: Karl-Landsteiner Institute for Endocrinology and Metabolism, Vienna, Austria - MR Center of Excellence, Medical University of Vienna, Vienna, Austria/ 3, 14: Department of Clinical Sciences, Lund University, Malmö , Sweden/ 4: Department of Sports and Exercise Physiology, University of Vienna, Vienna, Austria/ 6, 7: Karl-Landsteiner Institute for Endocrinology and Metabolism, Vienna, Austria/ 8: Karl-Landsteiner Institute for Endocrinology and Metabolism, Vienna, Austria - MR Center of Excellence, Medical University of Vienna, Vienna, Austria/ 9: 3MR Center of Excellence, Medical University of Vienna, Vienna, Austria/ 10: Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria/ 11: MR Center of Excellence, Medical University of Vienna, Vienna, Austria/ 12: Metabolic Unit, Institute of Biomedical Engineering, Consiglio Nazionale delle Ricerche, Padua, Italy/ 13: Department of Sports and Exercise Physiology, University of Vienna, Vienna, Austria/ 15: Medical Department, Hanusch Hospital, Vienna, Austria - Karl-Landsteiner Institute for Endocrinology and Metabolism, Vienna, Austria - Institute for Clinical Diabetology, German Diabetes Center-Leibniz Center for Diabetes Research, Department of Medicine/ Metabolic Diseases, Heinrich Heine University Düsseldorf, Düsseldorf, Germany (literal)
Titolo
  • Short-term exercise training does not stimulate skeletal muscle ATP synthesis in relatives of humans with type 2 diabetes (literal)
Abstract
  • OBJECTIVE--We tested the hypothesis that short-term exercise training improves hereditary insulin resistance by stimulating ATP synthesis and investigated associations with gene polymorphisms. RESEARCH DESIGN AND METHODS--We studied 24 nonobese first-degree relatives of type 2 diabetic patients and 12 control subjects at rest and 48 h after three bouts of exercise. In addition to measurements of oxygen uptake and insulin sensitivity (oral glucose tolerance test), ectopic lipids and mitochondrial ATP synthesis were assessed using 1 H and 31 P magnetic resonance spectroscopy, respectively. They were genotyped for polymorphisms in genes regulating mitochondrial function, PPARGC1A (rs8192678) and NDUFB6 (rs540467). RESULTS--Relatives had slightly lower (P ? 0.012) insulin sensitivity than control subjects. In control subjects, ATP synthase flux rose by 18% (P ? 0.0001), being 23% higher (P ? 0.002) than that in relatives after exercise training. Relatives responding to exercise training with increased ATP synthesis (?19%, P ? 0.009) showed improved insulin sensitivity (P ? 0.009) compared with those whose insulin sensitivity did not improve. A polymorphism in the NDUFB6 gene from respiratory chain complex I related to ATP synthesis (P ? 0.02) and insulin sensitivity response to exercise training (P ? 0.05). ATP synthase flux correlated with O2 uptake and insulin sensitivity. CONCLUSIONS--The ability of short-term exercise to stimulate ATP production distinguished individuals with improved insulin sensitivity from those whose insulin sensitivity did not improve. In addition, the NDUFB6 gene polymorphism appeared to modulate this adaptation. This finding suggests that genes involved in mitochondrial function contribute to the response of ATP synthesis to exercise training (literal)
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