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Folate and Mineral Metabolism in Poorly Nourished Epileptic Children

Joseph C. Marcus, MB, BCh, FCP(SA); John M. Pettifor, MB, BCh, FCP(SA)
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Accepted for publication Feb 12, 1980.

Reprints not available.


Arch Neurol. 1980;37(12):772-774. doi:10.1001/archneur.1980.00500610052008
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• Ninety poorly nourished, ambulant, epileptic children, who had been receiving anticonvulsant medications for at least one year, were studied in respect to their folic acid and vitamin D metabolism. Only 11 (12.2%) had borderline or low folate levels. Serum vitamin D levels were low in five (8.9%); serum calcium levels were low in nine (10%); and serum phosphorus levels were low in three (3.3%). Alkaline phosphatase levels were elevated in 19 (21.1%), but whether these arose from bone or liver was not determined. Height retardation did not correlate with abnormal mineral metabolism.

REFERENCES

Reynolds EH:  Effects of folic acid on mental state and fit frequency of drug-treated epileptics . Lancet 1:1086-1088, 1967;.
Gordon N:  Folate deficiency from anticonvulsant therapy . Dev Med Child Neurol 10:497-504, 1968;.
Dent CE, Richens A, Rowe DJF, et al:  Osteomalacia with long-term anticonvulsant therapy in epilepsy . Br Med J 4:69-72, 1970;.
Richens A, Rowe DJF:  Disturbance of calcium metabolism by anticonvulsant drugs . Br Med J 4:73-76, 1970;.
Margo G, Baroni Y, Brindley M, et al:  Protein energy malnutrition in coloured children in Western Township, Johannesburg . S Afr Med J 50:1241-1245, 1976;.
Reynolds EH:  Chronic antiepileptic toxicity: A review . Epilepsia 16:319-352, 1975;.
Pettifor JM, Ross FP, Wang J:  A competitive protein-binding assay for 25-hydroxyvitamin D . Clin Sci Mol Med 51:605-607, 1976;.
Apantaku JB, Afonja OA, Boyo AE:  The effect of long-term anticonvulsant therapy on serum calcium, phosphate, and alkaline phosphatase in Nigerian epileptic patients . Trop Geogr Med 27:418-421, 1975;.
Maxwell JD, Hunter J, Stewart DA, et al:  Folate deficiency after anticonvulsant drugs: An effect of hepatic enzyme induction? Br Med J 1:297-299, 1972;.
Hunter J, Maxwell JD, Stewart DA, et al:  Altered calcium metabolism in epileptic children on anticonvulsants . Br Med J 4:202-204, 1971;.
Dahlke MB, Mertens-Roesler E:  Malabsorption of folic acid due to diphenylhydantoin . Blood 30:341-351, 1967;.
 Anticonvulsant osteomalacia , editorial. Br Med J 2:1340-1341, 1976;.
Rose M, Johnson I:  Reinterpretation of the haematological effects of anticonvulsant treatment . Lancet 1:1349-1350, 1978;.
Hahn TJ:  Bone complications of anticonvulsants . Drugs 12:201-211, 1976;.
Hahn TJ, Hendin BA, Scharp CR, et al:  Effect of chronic anticonvulsant therapy on serum 25-hydroxycalciferol levels in adults . N Engl J Med 287:900-903, 1972;.
Winnacker JL, Yeager H, Saunders JA, et al:  Rickets in children receiving anticonvulsant drugs: Biochemical and hormonal markers . Am J Dis Child 131:286-290, 1977;.
Reynolds EH:  Neurological aspects of folate and vitamin B12 metabolism . Clin Haematol 5:661-696, 1976;.
Livingston S, Berman W, Pauli LL:  Anticonvulsant drugs and vitamin D metabolism . JAMA 224:1634-1635, 1972;.
Christiansen C, Rødbro P:  Anticonvulsant osteomalacia . Br Med J 1:439-440, 1977;.
 Hazards of overuse of vitamin  D, editorial. Am J Clin Nutr 28:512-513, 1975;.
Shafer RB, Nuttall FQ:  Calcium and folic acid absorption in patients taking anticonvulsant drugs . J Clin Endocrinol Metab 41:1125-1129, 1975;.
Christiansen C, Rødbro P, Sjo O:  Biochemical status in epileptic patients during treatment with vitamin D . Acta Neurol Scand 52:81-86, 1975;.

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Reynolds EH:  Effects of folic acid on mental state and fit frequency of drug-treated epileptics . Lancet 1:1086-1088, 1967;.
Gordon N:  Folate deficiency from anticonvulsant therapy . Dev Med Child Neurol 10:497-504, 1968;.
Dent CE, Richens A, Rowe DJF, et al:  Osteomalacia with long-term anticonvulsant therapy in epilepsy . Br Med J 4:69-72, 1970;.
Richens A, Rowe DJF:  Disturbance of calcium metabolism by anticonvulsant drugs . Br Med J 4:73-76, 1970;.
Margo G, Baroni Y, Brindley M, et al:  Protein energy malnutrition in coloured children in Western Township, Johannesburg . S Afr Med J 50:1241-1245, 1976;.
Reynolds EH:  Chronic antiepileptic toxicity: A review . Epilepsia 16:319-352, 1975;.
Pettifor JM, Ross FP, Wang J:  A competitive protein-binding assay for 25-hydroxyvitamin D . Clin Sci Mol Med 51:605-607, 1976;.
Apantaku JB, Afonja OA, Boyo AE:  The effect of long-term anticonvulsant therapy on serum calcium, phosphate, and alkaline phosphatase in Nigerian epileptic patients . Trop Geogr Med 27:418-421, 1975;.
Maxwell JD, Hunter J, Stewart DA, et al:  Folate deficiency after anticonvulsant drugs: An effect of hepatic enzyme induction? Br Med J 1:297-299, 1972;.
Hunter J, Maxwell JD, Stewart DA, et al:  Altered calcium metabolism in epileptic children on anticonvulsants . Br Med J 4:202-204, 1971;.
Dahlke MB, Mertens-Roesler E:  Malabsorption of folic acid due to diphenylhydantoin . Blood 30:341-351, 1967;.
 Anticonvulsant osteomalacia , editorial. Br Med J 2:1340-1341, 1976;.
Rose M, Johnson I:  Reinterpretation of the haematological effects of anticonvulsant treatment . Lancet 1:1349-1350, 1978;.
Hahn TJ:  Bone complications of anticonvulsants . Drugs 12:201-211, 1976;.
Hahn TJ, Hendin BA, Scharp CR, et al:  Effect of chronic anticonvulsant therapy on serum 25-hydroxycalciferol levels in adults . N Engl J Med 287:900-903, 1972;.
Winnacker JL, Yeager H, Saunders JA, et al:  Rickets in children receiving anticonvulsant drugs: Biochemical and hormonal markers . Am J Dis Child 131:286-290, 1977;.
Reynolds EH:  Neurological aspects of folate and vitamin B12 metabolism . Clin Haematol 5:661-696, 1976;.
Livingston S, Berman W, Pauli LL:  Anticonvulsant drugs and vitamin D metabolism . JAMA 224:1634-1635, 1972;.
Christiansen C, Rødbro P:  Anticonvulsant osteomalacia . Br Med J 1:439-440, 1977;.
 Hazards of overuse of vitamin  D, editorial. Am J Clin Nutr 28:512-513, 1975;.
Shafer RB, Nuttall FQ:  Calcium and folic acid absorption in patients taking anticonvulsant drugs . J Clin Endocrinol Metab 41:1125-1129, 1975;.
Christiansen C, Rødbro P, Sjo O:  Biochemical status in epileptic patients during treatment with vitamin D . Acta Neurol Scand 52:81-86, 1975;.

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