Abstract |
The kallikrein specific chromogenic peptide substrates S-2302 (KABI) and Chromozym PK (Boehringer) were used in the first analysis of a familial defect in the early stage of clotting. Slight to extensive prolongation of the activated partial thromboplastin time was seen in the affected persons. Using dextransulfate for activation of plasma marked deficiency in kallikrein activity was found in 3 persons. Using factor XIIa (activated Hageman factor) for activation normal prekallikrein levels were found in 2 of them whereas factor XII levels, however, were below normal. The third had a prekallikrein deficiency presumably caused by oral contraceptives. In a fourth member of the family factor XII deficiency was found with normal kallikrein activity. The application of chromogenic peptide substrates for analysing the early stage of clotting has to take into account the special mechanisms of activation.
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Authors | G Vogel, J Stürzebecher, C Klessen, G Lauten |
Journal | Folia haematologica (Leipzig, Germany : 1928)
(Folia Haematol Int Mag Klin Morphol Blutforsch)
Vol. 109
Issue 1
Pg. 115-20
( 1982)
ISSN: 0323-4347 [Print] Germany |
Vernacular Title | Einsatz chromogener Substrate zur Klärung von Störungen in der Vorphase der Gerinnung. |
PMID | 6177592
(Publication Type: English Abstract, Journal Article)
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Chemical References |
- Chromogenic Compounds
- Oligopeptides
- Chromozym PK
- prolyl-phenylalanyl-arginine-4-nitroanilide
- Factor XII
- Prekallikrein
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Topics |
- Adolescent
- Blood Coagulation Tests
- Chromogenic Compounds
- Factor XII
(analysis)
- Factor XII Deficiency
(diagnosis, genetics)
- Female
- Humans
- Oligopeptides
- Pedigree
- Prekallikrein
(analysis)
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