Document Detail


Native plasma kallikrein is cleared at similar rates by mammalian and avian livers.
MedLine Citation:
PMID:  1823219     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Rat plasma kallikrein (RPK) is a serine protease that circulates as an inactive precursor, prokallikrein, and once activated is efficiently cleared by the liver by a carbohydrate-dependent, Ca(2+)-independent mechanism. Seven hepatic lectin systems have been described for mammals but not all of these animal lectins are expressed in the avian liver. Using a liver perfusion system we compared the plasma kallikrein clearance of rats (N = 10) and pigeons (N = 4). Our results show that the lectin responsible for the hepatic clearance of plasma kallikrein is also present in pigeon liver and that this organ clears the enzyme with an efficiency (11.4 +/- 1.3 pmol/g, 20 min) similar to that of the rat liver (10.0 +/- 0.7 pmol/g, 20 min).
Authors:
D R Borges; M Kouyoumdjian; E A Limãos
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.]     Volume:  24     ISSN:  0100-879X     ISO Abbreviation:  Braz. J. Med. Biol. Res.     Publication Date:  1991  
Date Detail:
Created Date:  1992-09-22     Completed Date:  1992-09-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8112917     Medline TA:  Braz J Med Biol Res     Country:  BRAZIL    
Other Details:
Languages:  eng     Pagination:  63-5     Citation Subset:  IM    
Affiliation:
Disciplina de Gastroenterologia Clínica, Escola Paulista de Medicina, São Paulo, Brasil.
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MeSH Terms
Descriptor/Qualifier:
Animals
Columbidae
Kallikreins / blood*,  metabolism
Liver / metabolism*
Metabolic Clearance Rate
Rats
Receptors, Mitogen
Species Specificity
Chemical
Reg. No./Substance:
0/Receptors, Mitogen; EC 3.4.21.-/Kallikreins

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