PMID: 590276Nov 4, 1977

Serum alkaline phosphatase isoenzymes in epileptic children receving anticonvulsant drugs

European Journal of Pediatrics
K KruseH Günther

Abstract

In 40 epileptic children on long-term anticonvulsant treatment, serum alkaline phosphatase (AP) isoenzymes were separated semiquantitatively using a combination of L-phenylalanine inhibition and heat inactivation. Though mean total serum AP activity was significantly increased compared to age matched controls, only 4 individual values exceeded the upper limit (mean + 2SD) of the reference sample. In epileptics the mean activity of the heat-sensitive non L-phenylalanine sensitive AP fraction (non-LPSAP) was significantly increased (P less than 0.01) and the mean Q-value (i.e. percentage ratio of heat-stable non-LPSAP/non-LPSAP) was significantly decreased (P less than 0.05), thus indicating an enhancement of the bone isoenzymes during anticonvulsant treatment. In 4 patients the isoenzyme pattern was abnormal although total serum AP activity was normal and in 3 of them the deviation indicated enhanced bone isoenzyme. The data provide evidence that in anticonvulsant treated children the bone isoenzyme, rather than hepatobiliary isoenzyme fraction, may be increased even when total serum AP activity is normal. Thus, semiquantitative separation of serum AP isoenzymes may be a helpful guide as to whether or not an eplieptic child shou...Continue Reading

References

Oct 15, 1976·Clinica Chimica Acta; International Journal of Clinical Chemistry·A W Skillen, A M Pierides
Aug 23, 1977·European Journal of Pediatrics·K KruseH Günther
Jul 1, 1975·Archives of Internal Medicine
Oct 23, 1971·British Medical Journal·J HunterR Williams
Oct 10, 1970·British Medical Journal·C E DentT C Stamp
Oct 10, 1970·British Medical Journal·A Richens, D J Rowe
Mar 1, 1965·Epilepsia·J A WRIGHT

Citations

Feb 12, 2009·Indian Journal of Pediatrics·Geetha KrishnamoorthyMadhuri Kulkarni
Sep 23, 1998·Pediatric Neurology·R AkinE Gökçay
Aug 6, 2002·Seizure : the Journal of the British Epilepsy Association·Konstantinos A VoudrisAngeliki Skardoutsou
Oct 30, 2010·Pediatrics International : Official Journal of the Japan Pediatric Society·Neta DoriRon Shaoul

Related Concepts

Teens
Alkaline Phosphatase
Anticonvulsants
Single Seizure
Hot Temperature
Alloenzymes
Endorphenyl
Rickets

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