Melatonin secretion in children with epilepsy
Ruta Praninskiene1, Irena Dumalakiene, Robertas Kemezys
1Department of Child Neurology, Children's Hospital, Vilnius University Hospital Santariskiu Clinic, Vilnius, Lithuania.
Insights
Children with epilepsy maintained melatonin (MLT) and circadian rhythms, though some showed high MLT levels. No link was found between MLT patterns and seizure characteristics, suggesting further research into melatonin for epilepsy treatment.
Area of Science:
- Pediatric Neurology
- Chronobiology
- Epilepsy Research
Background:
- Melatonin (MLT) is a key hormone regulating circadian rhythms.
- Epilepsy is a neurological disorder characterized by recurrent seizures.
- Disruptions in circadian rhythms have been implicated in various neurological conditions.
Purpose of the Study:
- To investigate the melatonin (MLT) system and circadian rhythms in children with epilepsy.
- To determine if MLT secretion or excretion parameters correlate with seizure characteristics.
- To explore the potential therapeutic role of melatonin in managing epilepsy.
Main Methods:
- Measured diurnal patterns of salivary MLT, urinary 6-sulphatoxymelatonin, core body temperature, pulse, and blood pressure.
- Included 51 children with epilepsy and 29 age-matched healthy children.
- Analyzed MLT secretion/excretion parameters against seizure types, timing, and antiepileptic drug use.
Main Results:
- Children with epilepsy generally preserved MLT and other circadian rhythms.
- A subset of children with epilepsy (17.6%) exhibited very high peak salivary MLT concentrations.
- No significant associations were found between MLT parameters and seizure characteristics.
Conclusions:
- The melatonin system and circadian rhythms appear largely intact in children with epilepsy.
- Elevated MLT levels in some children warrant further investigation.
- Current findings do not support a direct relationship between MLT patterns and seizure control, but highlight potential for future therapeutic strategies.
Abstract:
This study examined melatonin (MLT) system in children with epilepsy. Diurnal patterns of salivary MLT, urinary metabolite 6-sulphatoxymelatonin, core body temperature, pulse and blood pressure were measured in 51 children with epilepsy (6.6-17.9 years) and 29 comparison children (5.5-17.3 years). The children with epilepsy preserved MLT and other circadian rhythms. In nine children with epilepsy (17.6%), peak salivary MLT concentrations were very high. There were no associations between MLT secretion/excretion parameters (diurnal profile, peak nocturnal concentrations, area under the time curve, duration of elevated concentrations, acrophase) and seizure characteristics (time, type of seizures, antiepileptic medications). The study observations are important for understanding of the MLT system in epilepsy and for exploring the potential for seizure treatment with melatonin.
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