Linked Life Data

8119664

Source:http://linkedlifedata.com/resource/pubmed/id/8119664

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1994-4-7
pubmed:abstractText
We have searched for the contribution of the kidney to the catabolism of glucagon-like peptide-1 (7-36)amide or tGLP-1 by analyzing the disappearance of the [125I]tGLP-1 both in vivo, from the plasma of bilaterally nephrectomized (BNX), ureteral-ligated (BUL) and normal rats and in vitro from the perfusate of an isolated rat kidney system. Also, we have measured the degradation of the peptide by the isolated renal tubules. Results from in vivo studies demonstrated that the disappearance half-time (t1/2) of [125I]tGLP-1 was significantly lower in the control than in BUL or BNX rats with the metabolic clearance rate (MCR) being higher in the control than in BUL and BNX group; no difference was found for both parameters between BUL and BNX rats. The urinary excretion of the peptide was negligible. The data from the isolated kidney experiments showed a disappearance of the peptide, which was not due to its spontaneous degradation nor to enzymes released from the kidney to the perfusate. Degradation of the peptide also occurred in the presence of isolated tubules. It was dependent upon the concentration of tubules. This could possibly be due to the action of the brush border-associated peptidases. In conclusion, our results demonstrate that, in the rat, the kidney removes the exogenous tGLP-1 from the peripheral circulation, by a mechanism that involves glomerular filtration and tubular catabolism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0018-5043
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
612-6
pubmed:dateRevised
2009-2-19
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Renal catabolism of truncated glucagon-like peptide 1.
pubmed:affiliation
Fundación Jiménez Díaz, Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't