Linked Life Data

1548360

Source:http://linkedlifedata.com/resource/pubmed/id/1548360

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1992-4-22
pubmed:abstractText
Two distinct GH-binding proteins (GHBP) are present in circulation in the human. The major GHBP (high affinity GHBP) is homologous to the extracellular portion of the GH receptor and the concentration of this protein in circulation may reflect the status of the GH receptor in the tissues. To gain information about the concentration of GHBPs in children with insulin-dependent diabetes mellitus (IDDM), we measured GHBP in the serum of 46 children with IDDM and compared it to that in 53 healthy control subjects matched for age and sexual maturity. The total GHBP concentration in the group of pubertal and postpubertal IDDM patients was lower than that measured in the control group (mean +/- SEM: 7.8 +/- 0.4 vs. 9.0 +/- 0.5%, P = 0.05). The diabetic children in stages II to IV of puberty had a lower GHBP level compared to their healthy controls (7.6 +/- 0.4 vs. 9.1 +/- 0.5%, P = 0.02), whereas the difference between the diabetic and control group of postpubertal children was not statistically different (8.3 +/- 0.7 vs. 9.7 +/- 0.7%, P = 0.1). In a randomly selected subset of eight patients and eight controls, the concentration of the individual GHBPs (i.e. high affinity and low affinity (GHBP) was estimated by gel chromatography. There was no difference in the low affinity GHBP between the two groups (9.9 +/- 0.6% vs. 9.9 +/- 0.4%), but the high affinity GHBP was less in the diabetic group than in the control group (10.5 +/- 0.9 vs. 15.6 +/- 1.0%, P less than 0.01). In the diabetic group, there was no correlation between the GHBP levels and age, duration of diabetes, hemoglobin A1, or insulin dose. We conclude that in IDDM there is less of the high affinity GHBP, suggesting a decrease in the number of GH receptors in these patients. This decrease may contribute to GH resistance manifesting as decreased insulin-like growth factor-I levels despite high GH levels in patients with IDDM.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
934-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Diminished growth hormone-binding protein in children with insulin-dependent diabetes mellitus.
pubmed:affiliation
Division of Endocrinology, Children's Hospital of Pittsburgh, Pennsylvania 15213.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't