Linked Life Data

14514631

Source:http://linkedlifedata.com/resource/pubmed/id/14514631

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2003-9-29
pubmed:abstractText
The relationship between insulin sensitivity and overall obesity is well established. However, there remains debate as to which of the fat depots, visceral abdominal tissue (VAT) or subcutaneous abdominal tissue (SAT), is of greater importance. Also, the relationship between fat distribution and insulin secretion is largely unknown. We studied SI, acute insulin response (AIR), and disposition index (DI), as obtained by minimal model analysis, in 999 Hispanic and 458 African-American men and women as part of the Insulin Resistance Atherosclerosis Study (IRAS) Family Study. VAT and SAT were measured from computed tomography scans performed at the L4/L5 vertebral region. A mixed-model approach was used to determine the relationship between each of the glucose homeostasis measures (SI, AIR, and DI) versus abdominal fat measures. Mean values were as follows: age, 41 years; SI, 1.98 10(-4).min(-1).microU(-1).ml(-1); AIR, 840 pmol.ml(-1).min(-1); BMI, 28.5 kg/m2; VAT, 100 cm2; and SAT, 333 cm2. SAT, VAT, and their joint interaction were each inversely and significantly associated with SI, adjusting for age, sex, ethnicity, and BMI. SAT, but not VAT, was positively associated with AIR, except when additionally adjusting for SI, in which case VAT was inversely associated with AIR. VAT and the joint interaction of VAT and SAT were inversely associated with DI. The fat measures explained 27% of the model R2 for SI, 16% for AIR, and 16% for DI. Thus, fat distribution is an important determinant of both insulin resistance and insulin secretion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0012-1797
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2490-6
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Insulin sensitivity, insulin secretion, and abdominal fat: the Insulin Resistance Atherosclerosis Study (IRAS) Family Study.
pubmed:affiliation
Department of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA. lwgnkcht@wfubmc.edu
pubmed:publicationType
Journal Article