Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-2-20
pubmed:abstractText
Determinants of glucose intolerance were studied in 163 obese Japanese young adults, 18 to 21 years old (43 females,120 males), who underwent 75-g oral glucose tolerance testing. Type 2 diabetes was newly diagnosed in 2.9% (n = 4); impaired fasting glucose (IFG) in 5.1% (n = 7); and impaired glucose tolerance (IGT) in 10.9% (n = 15). A homeostasis model assessment of insulin resistance (HOMA-IR) was used to estimate insulin sensitivity; beta-cell function during the first 30 min of the test was measured and defined as the insulinogenic index. This index was adjusted for insulin sensitivity, since this affects both beta-cell function and glucose disposition (disposition index). The relationship between insulinogenic index and 1/HOMA-IR was not hyperbolic. However, the disposition index (DI) was useful for the estimation of beta-cell function with the correct confirmation about it validity using beta-cell function index (BI). The association between insulin sensitivity and beta-cell function to glucose disposal, as measured by the area under the glucose curve (AUCg), was examined in all subjects. Insulin sensitivity was significantly related to AUCg (log HOMA-IR; R (2) = 0.142, p<0.0001). On the other hand, an inverse curvilinear relationship was observed between beta-cell function and AUCg (log(Delta I/Delta G)/HOMA-IR, R (2) = 0.411, p<0.0001). Thus, impaired beta-cell function, when estimated as DI, was strongly associated with impaired glucose disposal. In conclusion, our study showed that both insulin sensitivity and impaired beta-cell function are associated with impaired glucose metabolism, and that beta-cell function may be more important in determining glucose disposal.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1348-4540
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
903-10
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:18025761-Administration, Oral, pubmed-meshheading:18025761-Adolescent, pubmed-meshheading:18025761-Adult, pubmed-meshheading:18025761-Area Under Curve, pubmed-meshheading:18025761-Blood Glucose, pubmed-meshheading:18025761-Cholesterol, pubmed-meshheading:18025761-Cross-Sectional Studies, pubmed-meshheading:18025761-Female, pubmed-meshheading:18025761-Glucose, pubmed-meshheading:18025761-Glucose Intolerance, pubmed-meshheading:18025761-Glucose Tolerance Test, pubmed-meshheading:18025761-Humans, pubmed-meshheading:18025761-Insulin, pubmed-meshheading:18025761-Insulin Resistance, pubmed-meshheading:18025761-Insulin-Secreting Cells, pubmed-meshheading:18025761-Japan, pubmed-meshheading:18025761-Male, pubmed-meshheading:18025761-Obesity, pubmed-meshheading:18025761-Triglycerides
pubmed:year
2007
pubmed:articleTitle
Beta-cell function is a major contributor to oral glucose disposition in obese Japanese students.
pubmed:affiliation
Medical Health Center, Fukuoka University, Fukuoka, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't