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- Document 0859
- DOCN M9620859
- TI Lithium and anti-viral drug toxicity: II. Further studies on the ability
- of lithium to modulate the hematopoietic toxicity associated with the
- anti-viral drug zidovudine (AZT).
- DT 9602
- AU Kazim S; Townsley L; Hughes NK; Tse KF; Ling J; Scott K; Birch NJ;
- Gallicchio VS; School of Health Sciences, University of Wolverhampton,
- UK.
- SO Rom J Physiol. 1993 Jul-Dec;30(3-4):231-9. Unique Identifier : AIDSLINE
- MED/96078488
- AB Lithium is an agent capable of influencing many aspects of blood cell
- production, in particular, the formation of granulocytes. Because of
- this property, lithium has been demonstrated to be an effective agent
- whenever granulocyte production is either faulty or inadequate. The
- anti-viral drug zidovudine (AZT) has used been extensively in the
- treatment of acquired immune deficiency syndrome (AIDS). However, its
- effectiveness is limited because of the myelosuppression and bone marrow
- toxicity associated with its use. We have previously demonstrated that
- lithium, when combined with AZT in vitro with normal bone marrow cells
- or when administered in vivo to mice receiving dose-escalation AZT,
- reduced the myelosuppression and marrow toxicity of AZT significantly.
- We report here further studies designed to evaluate the extent of
- lithium's capacity to modulate AZT toxicity by investigating the ability
- of lithium to influence blood cell production when administered to
- normal mice during an initial exposure to AZT. C57BL6 were administered
- dose-escalation AZT (1.0 mg/ml and 2.5 mg/ml) for a period of 4-weeks in
- the presence or absence of lithium carbonate (1 mM). This was followed
- by an additional 4-week period during which mice received only AZT.
- Animals were analyzed on a weekly basis for their peripheral blood
- indices. Animals receiving dose-escalation AZT demonstrated anemia,
- thrombocytopenia, and neutropenia which was dose-related. During the
- period when animals received combination lithium/AZT, there was
- significantly less anemia, thrombocytopenia, and neutropenia as compared
- to the AZT controls.(ABSTRACT TRUNCATED AT 250 WORDS)
- DE Animal Comparative Study Female Hematopoiesis/*DRUG EFFECTS
- Leukocyte Count/DRUG EFFECTS Lithium/*PHARMACOLOGY Mice Mice, Inbred
- C57BL Monocytes/CYTOLOGY Neutrophils/DRUG EFFECTS Platelet Count/DRUG
- EFFECTS Support, Non-U.S. Gov't Support, U.S. Gov't, Non-P.H.S.
- Zidovudine/*PHARMACOLOGY JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-