Endocrine Abstracts

Background: We and others have shown that ectopic lipids are flexible fuel stores in healthy subjects, in patients with type 1 diabetes or with GHD. IMCL are depleted by exercise and repleted by diet, whereas intrahepatocellular lipids (IHCL) are increased immediately after exercise. It is unclear whether the exercise-induced flexibility of IMCL and IHCL persists until 24 h and whether healthy subjects and patients with GHD behave differently.Methods: Ma...

Introduction: Ectopic lipids are fuel stores in non-adipose tissues (i.e. skeletal muscle (IMCL), liver (IHCL), heart (ICCL)). An aerobic-exercise bout leads to a decrease in IMCL (‘working tissues’), whereas it is not established whether a single but of exercise influences IHCL or ICCL.Increased IMCL and IHCL have been related to impaired insulin action in skeletal muscle and liver. It is hypothesized that fat availability (subcutaneous and vi...

Introduction: Ectopic lipids are fuel stores in non-adipose tissues (i.e. skeletal muscle (IMCL), liver (IHCL), and heart (ICCL)). It is recognized that IMCL can be depleted by physical activity and repleted by dietary fat intake indicating metabolic flexibility. In contrast, preliminary data suggested that aerobic exercise increases IHCL. Data on the acute effect of aerobic exercise on ICCL is scarce.Increased IMCL and IHCL have consistently been relate...

Background: Acetylcarnitine (AC) is involved in intramyocellular fuel metabolism during exercise. So far, little is known on exercise-associated myocellular AC levels in patients with type 1 diabetes. In particular, it is unknown whether AC levels differ according to glucose values in diabetic patients. 1H magnetic resonance spectroscopy (MRS) of the skeletal muscle allows for the non-invasive assessment of acetylcarnitine (AC) accumulation. The present study assess...