Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-3-23
pubmed:abstractText
Serum proinsulin is disproportionately elevated both in the basal state and after an oral glucose load in non-insulin-dependent diabetes mellitus (NIDDM). However, there is no detailed information about the effect of glycemic control on this abnormality. We investigated the effect of glycemic control by dietary treatment on serum proinsulin level in the basal state and in response to an oral glucose load. Ten NIDDM patients (7 men and 3 women), aged 19-60 yr, with mean (+/- SD) body mass index of 28 +/- 6 kg/m2 (range 21-42 kg/m2) and normal renal and liver function were studied. Before and after dietary therapy (25-30 kcal/kg ideal body wt), 100-g oral glucose tolerance tests were performed. Proinsulin was measured with our proinsulin-specific antiserum, which recognizes the connecting site of the B-chain of insulin and C-peptide. After dietary treatment, fasting plasma glucose decreased from 197 +/- 35 to 113 +/- 18 mg/dl (P less than .001). Both serum insulin and proinsulin decreased (insulin from 15 +/- 8 to 10 +/- 4 microU/ml, P less than .02; proinsulin from 31 +/- 18 to 13 +/- 5 pM, P less than .02), and the molar ratio of proinsulin to insulin also tended to decrease (from 0.321 +/- 0.08 to 0.24 +/- 0.10, P less than .10). Insulin response to oral glucose increased after dietary treatment, whereas proinsulin response did not change, resulting in a significant decrease in the molar ratio of the area under the curve of proinsulin to insulin after glucose load (from 0.28 +/- 0.12 to 0.13 +/- 0.07, P less than .001).(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0012-1797
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
262-6
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Effects of dietary treatment on serum insulin and proinsulin response in newly diagnosed NIDDM.
pubmed:affiliation
Division of Endocrinology and Metabolism, Jichi Medical School, Tochigi-ken, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't