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Effect of phenytoin on DNA synthesis by human bone marrow
Scandinavian Journal of Haematology
|March 1, 1978
Abstract:
Diphenylhydantoin (phenytoin) when incubated with human marrow interfered with the synthesis of deoxyribosenucleic acid (DNA) by those cells. This interference was dose related but was present at all concentrations, 25 microgram/ml to 100 microgram/ml. Cells unable to complete DNA synthesis would die in the marrow, lead to ineffective haemopoiesis and an increased folate requirement.
Insights
Diphenylhydantoin (phenytoin) hinders human bone marrow cells from synthesizing deoxyribonucleic acid (DNA). This dose-dependent effect, observed at all tested concentrations, can lead to cell death and impaired blood formation.
Area of Science:
- Hematology
- Molecular Biology
- Pharmacology
Background:
- Diphenylhydantoin (phenytoin) is an anticonvulsant medication.
- Bone marrow is crucial for blood cell production.
- Deoxyribonucleic acid (DNA) synthesis is vital for cell division and function.
Purpose of the Study:
- To investigate the effect of diphenylhydantoin (phenytoin) on human bone marrow deoxyribonucleic acid (DNA) synthesis.
- To determine if this interference is dose-dependent.
Main Methods:
- Human bone marrow cells were incubated with varying concentrations of diphenylhydantoin (phenytoin) (25-100 microgram/ml).
- Deoxyribonucleic acid (DNA) synthesis in these cells was measured.
Main Results:
- Diphenylhydantoin (phenytoin) interfered with deoxyribonucleic acid (DNA) synthesis in human marrow cells.
- This interference was observed across all tested concentrations and was dose-related.
Conclusions:
- Diphenylhydantoin (phenytoin) negatively impacts deoxyribonucleic acid (DNA) synthesis in bone marrow.
- This mechanism may explain ineffective hematopoiesis and increased folate requirements associated with phenytoin use.