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[Report of a case of congenital plasminogen activator inhibitor-1 deficiency].

Authors :
Zhang ZY
Wang ZY
Fu JX
Dong NZ
Zhang W
Bai X
Ruan CG
Source :
Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi [Zhonghua Xue Ye Xue Za Zhi] 2004 Mar; Vol. 25 (3), pp. 129-31.
Publication Year :
2004

Abstract

Objective: To report a patient with congenital plasminogen activator inhibitor-1 (PAI-1) deficiency and explore its molecular mechanism.<br />Methods: The activities of tissue plasminogen activator (tPA), alpha(2) antiplasmin (alpha(2)AP) and PAI-1 were measured by the methods of chromogenic substrate, the antigens of tPA and PAI-1 were measured by ELISA. PAI-1 gene was studied by PCR product sequencing and restriction endonuclease ana-lysing.<br />Results: In the present patient, the euglobulin clot lysis time was 70 minutes and was corrected to normal range after added 50 ng/ml PAI-1 to his plasma. The activities of t-PA, alpha(2)AP, and factor were normal; the activity and antigen of PAI-1 in plasma were both significantly decreased. Nucleotide sequence analysis revealed that the patient had a heterozygous missense mutation in exon 2, a G to A transition at nucleotide 43. The possibility of gene polymorphism was excluded by restriction endonuclease analysing.<br />Conclusions: It is the first patient with congenital PAI-1 deficiency reported in China. The PAI-1 deficiency in the patient may be caused by compound heterozygosity, one of which is the G to A transition at nt43, a new mutation in congenital PAI-1 deficiency.

Details

Language :
Chinese
ISSN :
0253-2727
Volume :
25
Issue :
3
Database :
MEDLINE
Journal :
Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi
Publication Type :
Academic Journal
Accession number :
15182577