Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1984-6-14
pubmed:abstractText
The elimination of labelled human fibrin fragment beta 15-42 from the circulation has been studied in an experimental rat model. When 125I beta 15-42 was injected as a bolus into a control group of rats, its elimination from the circulation could be fitted to a two compartment exponential model. A fast initial elimination had a t1/2 of less than 2 min and this was followed by a slower component with a calculated t1/2 of 135 min. The fast component was caused by equilibration of peptide throughout the intra and extra vascular spaces and the slow component reflected the action of catabolic processes once equilibration had been attained. Rats that had undergone bilateral nephrectomy eliminated significantly less of the labelled peptide than the control animals at a given time and the t1/2 of the slow component was prolonged, but not significantly, to 159 min. Rats with ligated ureters had statistically indistinguishable elimination curves from control rats. Examination of the heterogeneity of labelled peptide in plasma samples taken during the experiments by immunoprecipitation and by gel filtration revealed progressive extensive degradation in the control and ureteral ligated rats, but less degradation in nephrectomized rats. These results suggest that beta 15-42 is eliminated, in part, from the circulation by uptake and catabolism by the kidney. It is concluded that impaired renal function may results in elevated plasma levels of beta 15-42 antigen in human renal failure without the need for an increased rate of production of the peptide.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0049-3848
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
571-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Experimental evidence for renal catabolism of fibrin fragment beta 15-42.
pubmed:publicationType
Journal Article, Comparative Study