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Inactivation of urinary kallikrein by alpha 1-antitrypsin. 1981

W H Hörl, and A Heidland

Proteolytic activity, with azocasein as substrate in the presence and absence of 0.4 IU kallikrein (Padutin) was measured in the 24 h urine fractions of 100 ambulatory patients with hypertension, proteinuria or haematuria. Urinary protein and alpha 1-antitrypsin concentration have also been assayed. There was an inverse relationship between kallikrein activity and urinary alpha1-antitrypsin concentration( r = 0.84; y = 39.2 e-0.009x). Furthermore, kallikrein activity and 24 h urinary alpha 1-antitrypsin excretion were also inversely correlated (r = 0.81; y = 886,4 e-0.011x). Our data suggest an inactivation of renal kallikrein by urinary alpha 1-antitrypsin.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007610 Kallikreins Proteolytic enzymes from the serine endopeptidase family found in normal blood and urine. Specifically, Kallikreins are potent vasodilators and hypotensives and increase vascular permeability and affect smooth muscle. They act as infertility agents in men. Three forms are recognized, PLASMA KALLIKREIN (EC 3.4.21.34), TISSUE KALLIKREIN (EC 3.4.21.35), and PROSTATE-SPECIFIC ANTIGEN (EC 3.4.21.77). Kallikrein,Kininogenase,Callicrein,Dilminal,Kallidinogenase,Kalliginogenase,Kallikrein A,Kallikrein B',Kallikrein Light Chain,Kinin-Forming Enzyme,Padutin,alpha-Kallikrein,beta-Kallikrein,beta-Kallikrein B,Enzyme, Kinin-Forming,Kinin Forming Enzyme,Light Chain, Kallikrein,alpha Kallikrein,beta Kallikrein,beta Kallikrein B
D008297 Male Males
D011507 Proteinuria The presence of proteins in the urine, an indicator of KIDNEY DISEASES. Proteinurias
D005260 Female Females
D006417 Hematuria Presence of blood in the urine. Hematurias
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000515 alpha 1-Antitrypsin Plasma glycoprotein member of the serpin superfamily which inhibits TRYPSIN; NEUTROPHIL ELASTASE; and other PROTEOLYTIC ENZYMES. Trypsin Inhibitor, alpha 1-Antitrypsin,alpha 1-Protease Inhibitor,alpha 1-Proteinase Inhibitor,A1PI,Prolastin,Serpin A1,Zemaira,alpha 1 Antiprotease,alpha 1-Antiproteinase,1-Antiproteinase, alpha,Antiprotease, alpha 1,Inhibitor, alpha 1-Protease,Inhibitor, alpha 1-Proteinase,Trypsin Inhibitor, alpha 1 Antitrypsin,alpha 1 Antiproteinase,alpha 1 Antitrypsin,alpha 1 Protease Inhibitor,alpha 1 Proteinase Inhibitor

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