## Abstract The effect of L‐asparaginase (L‐asp) therapy on circulating antithrombin‐III (AT‐III) was monitored in three patients with acute lymphoblastic leukemia. Serial determination for AT‐III by both a functional assay and an immunologic assay demonstrated a rapid decrease in serum AT‐III leve
Reduced antithrombin III levels during L-asparaginase therapy
✍ Scribed by Buchanan, George R. ;Holtkamp, Christine A.
- Book ID
- 102949745
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 517 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0098-1532
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✦ Synopsis
Abstract
Antithrombin III levels were measured in serum before, during, and after therapy with three different dosage regimens of L‐asparaginase in 11 children with acute lymphoblastic leukemia. Levels determined by both functional and immunologic methods were transiently reduced during alternate‐day or daily L‐asparaginase treatment but not affected when the drug was administered only every 10 days. The probable mechanism of this effect is impaired hepatic synthesis of antithrombin III, resembling the acute and transient deficiency of other asparagine‐rich proteins during L‐asparaginase administration.
📜 SIMILAR VOLUMES
Eleven patients with leukemia and lymphoma were treated with 14 courses of E. coli L-asparaginase. Abnormalities of the coagulation screening tests and decreased fibrinogen levels were observed in all patients during treatment. Significant depressions of functional (mean 32%) and antigenic (mean 48%
Previous reports have observed a fall in antithrombin III (AT III) concentration in patients receiving L-asparaginase as part of acute lymphatic leukaemia (ALL) induction therapy. The aim of this study was to define any qualitative changes in AT III that might arise during the course of L-asparagina