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Anticonvulsants, folic acid and memory dysfunction in epileptics
Clinical and Experimental Neurology
|January 1, 1984
Summary
This study found no link between epilepsy drug levels and memory in 116 patients. However, lower red cell folate levels correlated with poorer memory, suggesting a potential link with phenytoin treatment.
Area of Science:
- Neurology
- Clinical Pharmacology
Background:
- Epilepsy is a common neurological disorder.
- Anticonvulsant medications are the primary treatment for epilepsy.
- Potential cognitive side effects of anticonvulsants require investigation.
Purpose of the Study:
- To investigate the relationship between serum anticonvulsant levels, red cell folate levels, and memory performance in epileptic patients on monotherapy.
- To explore the hypothesis that phenytoin may affect memory by reducing folate levels.
Main Methods:
- Survey of 116 epileptic patients undergoing monotherapy with phenytoin, carbamazepine, or sodium valproate.
- Assessment of memory performance.
- Measurement of serum anticonvulsant levels and red cell folate levels.
Main Results:
- No significant correlation was observed between serum anticonvulsant levels and memory performance.
- A significant correlation was found between memory performance and red cell folate levels.
- Patients with lower red cell folate levels exhibited poorer memory function.
Conclusions:
- Serum anticonvulsant levels may not be directly associated with memory impairment in these patients.
- Red cell folate levels are significantly correlated with memory performance in epileptic patients.
- Phenytoin's potential to impair memory through folate reduction warrants further investigation.