Lowered Antithrombin III Activity and Other Clotting Changes in Homocystinuria: Effects of a Pyridoxine-Folate Regimen
作者:
Gualtiero Palareti,
Sergio Coccheri,
期刊:
Pathophysiology of Haemostasis and Thrombosis
(Karger Available online 1989)
卷期:
Volume 19,
issue 1
页码: 24-28
ISSN:1424-8832
年代: 1989
DOI:10.1159/000216092
出版商: S. Karger AG
关键词: Thrombosis;Atherosclerosis;Antithrombin III;Protein C;Factor VII;Pyridoxine;Folate
数据来源: Karger
摘要:
Few studies have dealt with blood-clotting changes in patients affected by homocystinuria. The aim of this contribution is to briefly review studies published so far on the topic and report the results of our investigation performed in 3 patients. At baseline we found reduced antithrombin III and factor VII levels in all the patients, in line with the results of other authors, and other slight and less constant changes such as lowered factor X activity and protein C antigen, and increased β-thromboglobulin levels. During pyridoxine and folate treatment, antithrombin III activity rapidly returned to normal; factor VII increased and β-thromboglobulin decreased. These blood-clotting abnormalities may play a role in the thrombotic tendency associated with homocystinuria. Their nature is still uncertain, but the improvement observed during active metabolic treatment suggests that the defect in amino acid transsulfuration of homocystinuria may directly affect synthesis or activity of some clotting factor
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