Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-4-27
pubmed:abstractText
Increased lipid oxidation is related to insulin resistance. Some of the enhanced lipid utilization may be derived from intramuscular sources. We studied muscle triglyceride (mTG) concentration and its relationship to insulin sensitivity in 10 healthy men (age 29 +/- 2 years, BMI 23.3 +/- 0.6 kg/m2) and 17 men with insulin-dependent diabetes mellitus (IDDM) (age 30 +/- 2 years, BMI 22.8 +/- 0.5 kg/m2, diabetes duration 14 +/- 2 years, HbA1c 7.7 +/- 0.3%, insulin dose 48 +/- 3 U/day). Insulin sensitivity was measured with a 4h euglycaemic (5 mmol/l) hyperinsulinaemic (1.5 mU or 9 pmol x kg(-1) x min[-1]) clamp accompanied by indirect calorimetry before and at the end of the insulin infusion. A percutaneous biopsy was performed from m. vastus lateralis for the determination of mTG. At baseline the IDDM patients had higher glucose (10.2 +/- 0.9 vs 5.6 +/- 0.1 mmol/l, p < 0.001), insulin (40.3 +/- 3.2 vs 23.2 +/- 4.2 pmol/l, p < 0.01), HDL cholesterol (1.28 +/- 0.06 vs 1.04 +/- 0.03 mmol/l, p < 0.01) and mTG (32.9 +/- 4.6 vs 13.6 +/- 2.7 mmol/kg dry weight, p < 0.01) concentrations than the healthy men, respectively. The IDDM patients had lower insulin stimulated whole body total (-25%, p < 0.001), oxidative (-18%, p < 0.01) and non-oxidative glucose disposal rates (-43%, p < 0.001), whereas lipid oxidation rate was higher in the basal state (+ 44%, p < 0.01) and during hyperinsulinaemia (+283%, p < 0.05). mTG concentrations did not change significantly during the clamp or correlate with insulin stimulated glucose disposal. In healthy men mTG correlated positively with lipid oxidation rate at the end of hyperinsulinaemia (r = 0.75, p < 0.05). In conclusion: 1) IDDM is associated with increased intramuscular TG content. 2) mTG content does not correlate with insulin sensitivity in healthy subjects or patients with IDDM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0012-186X
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-5
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:9498639-Adult, pubmed-meshheading:9498639-Blood Glucose, pubmed-meshheading:9498639-Body Mass Index, pubmed-meshheading:9498639-Cholesterol, pubmed-meshheading:9498639-Cholesterol, HDL, pubmed-meshheading:9498639-Diabetes Mellitus, Type 1, pubmed-meshheading:9498639-Glucose Clamp Technique, pubmed-meshheading:9498639-Human Growth Hormone, pubmed-meshheading:9498639-Humans, pubmed-meshheading:9498639-Hydrocortisone, pubmed-meshheading:9498639-Hyperinsulinism, pubmed-meshheading:9498639-Infusions, Intravenous, pubmed-meshheading:9498639-Insulin, pubmed-meshheading:9498639-Male, pubmed-meshheading:9498639-Muscle, Skeletal, pubmed-meshheading:9498639-Oxidation-Reduction, pubmed-meshheading:9498639-Oxygen Consumption, pubmed-meshheading:9498639-Reference Values, pubmed-meshheading:9498639-Triglycerides
pubmed:year
1998
pubmed:articleTitle
Intramuscular triglyceride content is increased in IDDM.
pubmed:affiliation
Department of Medicine, University of Helsinki, Finland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't