Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-11-20
pubmed:abstractText
Elevated fasting insulin concentrations and insulin resistance have been associated with non-insulin-dependent diabetes mellitus (NIDDM), obesity, atherosclerosis, and hypertension. Vitamin E supplementation in persons with and without NIDDM may be related to greater insulin sensitivity (SI). The cross-sectional associations of the intake of vitamins E and C with SI and insulin concentrations were evaluated among African American, Hispanic, and non-Hispanic white men and women with a wide spectrum of glucose tolerance included in the Insulin Resistance and Atherosclerosis Study (IRAS) (n = 1151). Insulin sensitivity was measured by minimal model analysis of a 12-sample, insulin-modified, frequently sampled intravenous glucose tolerance test. Nutrient intake (including vitamin supplement use) was assessed with a food-frequency questionnaire modified to include foods consumed by the three ethnic groups. Linear-regression models were used, including rank of SI and the log of fasting insulin as the outcome variables. Pearson correlation coefficients for vitamins E and C in relation to rank SI were r = 0.07 (P = 0.01) and r = 0.07 (P = 0.02), respectively. After adjustment for total energy and BMI these associations were no longer statistically significant and did not differ between ethnic groups. Results were similar when vitamins E and C were combined in categories of low and high antioxidant intake. Models replicated with log of fasting insulin as the outcome variable also did not produce significant associations with vitamins E or C. Thus, these cross-sectional analyses do not support the hypothesis of improved SI with increased intake of vitamins E and C.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0002-9165
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1224-31
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:9356542-Adult, pubmed-meshheading:9356542-African Continental Ancestry Group, pubmed-meshheading:9356542-Aged, pubmed-meshheading:9356542-Ascorbic Acid, pubmed-meshheading:9356542-Blood Glucose, pubmed-meshheading:9356542-Cross-Sectional Studies, pubmed-meshheading:9356542-Diabetes Mellitus, Type 2, pubmed-meshheading:9356542-Diet, pubmed-meshheading:9356542-European Continental Ancestry Group, pubmed-meshheading:9356542-Female, pubmed-meshheading:9356542-Humans, pubmed-meshheading:9356542-Insulin Resistance, pubmed-meshheading:9356542-Linear Models, pubmed-meshheading:9356542-Male, pubmed-meshheading:9356542-Mexican Americans, pubmed-meshheading:9356542-Middle Aged, pubmed-meshheading:9356542-Risk Factors, pubmed-meshheading:9356542-United States, pubmed-meshheading:9356542-Vitamin E
pubmed:year
1997
pubmed:articleTitle
Insulin sensitivity and intake of vitamins E and C in African American, Hispanic, and non-Hispanic white men and women: the Insulin Resistance and Atherosclerosis Study (IRAS).
pubmed:affiliation
Department of Public Health Sciences, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Multicenter Study