Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2004-8-4
pubmed:abstractText
Asian Indians are at higher risk for diabetes and cardiovascular disease than European Caucasians. To examine the pathophysiology of this increased risk, we measured insulin sensitivity, cardiovascular risk factors, fat distribution, and endothelium-dependent (reactive hyperemia) and -independent (nitroglycerin) vasodilation before and after a 2-h hyperinsulinemic clamp (40 mU/m(2).min) in 25 nondiabetic Asian Indians and 15 Caucasians with similar age and body mass index. Asian Indians had higher fasting insulin than Caucasians (6.7 +/- 0.8 vs. 3.7 +/- 0.3 microU/ml, P = 0.007) but similar FPG (90 +/- 2 vs. 88 +/- 2 mg/dl). Glucose uptake during the clamp was markedly reduced in Asian Indians vs. Caucasians (4.5 +/- 0.3 vs. 7.5 +/- 0.4 mg/kg x min, P < 0.0001). During the clamp, basal brachial artery diameter increased less in Asian Indians vs. Caucasians (2.6 +/- 1.0 vs. 5.7 +/- 1.0%, P = 0.04), and the reduction was correlated with the impairment in insulin sensitivity (r = 0.38, P = 0.04). In contrast, vasodilatory responses to reactive hyperemia and nitroglycerin were similar in Asian Indians and Caucasians both before and during hyperinsulinemia. Plasminogen activator inhibitor-1 and FFA were significantly elevated and adiponectin was significantly lower in Asian Indians vs. Caucasians, and there were trends toward higher low-density lipoprotein and triglycerides, lower high-density lipoprotein, and increased total, sc, and visceral fat. These risk factors were all significantly correlated with insulin sensitivity. Thus, apparently healthy Asian Indians have severe insulin resistance, dyslipidemia, elevated plasminogen activator inhibitor-1, impaired insulin-mediated vasodilation, and trends toward altered body fat distribution. These abnormalities may contribute to the increased risk of diabetes and cardiovascular disease in this population.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
89
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3965-72
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:15292334-Abdomen, pubmed-meshheading:15292334-Adiponectin, pubmed-meshheading:15292334-Adipose Tissue, pubmed-meshheading:15292334-Adult, pubmed-meshheading:15292334-Asian Continental Ancestry Group, pubmed-meshheading:15292334-Brachial Artery, pubmed-meshheading:15292334-Cardiovascular Diseases, pubmed-meshheading:15292334-Case-Control Studies, pubmed-meshheading:15292334-European Continental Ancestry Group, pubmed-meshheading:15292334-Fatty Acids, Nonesterified, pubmed-meshheading:15292334-Humans, pubmed-meshheading:15292334-India, pubmed-meshheading:15292334-Insulin, pubmed-meshheading:15292334-Insulin Resistance, pubmed-meshheading:15292334-Intercellular Signaling Peptides and Proteins, pubmed-meshheading:15292334-Middle Aged, pubmed-meshheading:15292334-Proteins, pubmed-meshheading:15292334-Risk Factors, pubmed-meshheading:15292334-Subcutaneous Tissue, pubmed-meshheading:15292334-Triglycerides, pubmed-meshheading:15292334-United States, pubmed-meshheading:15292334-Vasodilation
pubmed:year
2004
pubmed:articleTitle
Insulin resistance and vascular dysfunction in nondiabetic Asian Indians.
pubmed:affiliation
Division of Endocrinology, Diabetes, and Metabolism, Brigham and Women's Hospital, 221 Longwood Avenue, Boston, Massachusetts 02115, USA. araji@partners.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't