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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-8-10
pubmed:abstractText
We hypothesized that elevated hepatic glucose output (HGO) may occur in children with cystic fibrosis (CF) as an early sign of declining insulin secretion and that tolbutamide therapy would correct the defect. We studied eight glucose-tolerant CF patients (mean +/- SD, 9.1 +/- 1.9 y) and five healthy controls (9.0 +/- 1.6 y). Fasting glucose, insulin, and insulin-connecting peptide concentrations were not different in the CF and control subjects; however, meal stimulation tests in the CF patients suggested that insulin secretion was defective in the fed state. HGO (mg.kg-1 body weight.min-1) was 26% higher in the CF patients (4.2 +/- 0.7 versus 3.1 +/- 0.6 in HC) (p = 0.016). When normalized for fat-free mass (mg.kg fat-free mass-1.min-1), HGO was 27% higher in CF (4.9 +/- 0.8 versus 3.8 +/- 0.5) (p = 0.015). However, when expressed as a function of resting energy expenditure (mg.kcal-1), HGO was not significantly different in CF (121 +/- 22) versus healthy controls (116 +/- 30). In seven of the CF group, HGO was re-assessed after a 2-h glucose infusion at a rate of 0.90 +/- 0.02 mg.kg-1.min-1. HGO was suppressed (p < 0.05) by an amount equal to 103 +/- 18% of the glucose infusion rate. Finally, in five CF patients, HGO was re-measured after 2 wk of oral therapy with tolbutamide (750 mg/d). Tolbutamide did not affect HGO (fasting or during the glucose infusion). In conclusion, fasting HGO was elevated in the CF patients in proportion to energy expenditure.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0031-3998
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
600-5
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Elevated hepatic glucose production in children with cystic fibrosis.
pubmed:affiliation
Department of Pediatrics, Ohio State University College of Medicine, Columbia 43205, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't