<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec><h3>Background</h3>
<p>Epilepsy is a common chronic neurological disorder affecting all age groups. A significant portion of children with epilepsy develop drug-resistant seizures. These children are at risk of cognitive and behavioral comorbidities and death. Some clinical features provide important information about the prognosis of epilepsy. However, currently, there is no objective biochemical indicator associated with refractory epilepsy. This study aimed to determine whether serum alpha-synuclein (αS), pglycoprotein (P-gp), and adenosine deaminase activity (ADA) were biochemical risk factors for refractory epilepsy.</p>
</sec>
<sec><h3>Methods</h3>
<p>The cross-sectional study included patients diagnosed with refractory epilepsy (n=32), non-refractory epilepsy (n=35) and 20 healthy children under the age of 18 who applied to the Pediatric Neurology outpatient clinic. In the serum samples, αS and P-gp were analyzed by ELISA and ADA activity was analyzed by spectrophotometric method. ROC analysis was applied and the area under the curve (AUC) was calculated to define cut-off values in distinguishing refractory epilepsy patients from non-refractory epilepsy patients. Binary logistic regression analysis was performed to define risk factors associated with resistance in patients with epilepsy.</p>
</sec>
<sec><h3>Results</h3>
<p>Children with epilepsy whose ADA activity and αS values were higher than the determined cut-off values had 10-fold and 5.3-fold increased risk of refractory epilepsy, respectively.</p>
</sec>
<sec><h3>Conclusions</h3>
<p>αS and ADA activity can be used as biochemical risk factors for refractory epilepsy. However, these results need to be confirmed by prospective studies with many patients.</p>
</sec>
</abstract>

Background
Epilepsy is a common chronic neurological disorder affecting all age groups. A significant portion of children with epilepsy develop drug-resistant seizures. These children are at risk of cognitive and behavioral comorbidities and death. Some clinical features provide important information about the prognosis of epilepsy. However, currently, there is no objective biochemical indicator associated with refractory epilepsy. This study aimed to determine whether serum alpha-synuclein (αS), pglycoprotein (P-gp), and adenosine deaminase activity (ADA) were biochemical risk factors for refractory epilepsy.

Methods
The cross-sectional study included patients diagnosed with refractory epilepsy (n=32), non-refractory epilepsy (n=35) and 20 healthy children under the age of 18 who applied to the Pediatric Neurology outpatient clinic. In the serum samples, αS and P-gp were analyzed by ELISA and ADA activity was analyzed by spectrophotometric method. ROC analysis was applied and the area under the curve (AUC) was calculated to define cut-off values in distinguishing refractory epilepsy patients from non-refractory epilepsy patients. Binary logistic regression analysis was performed to define risk factors associated with resistance in patients with epilepsy.

Results
Children with epilepsy whose ADA activity and αS values were higher than the determined cut-off values had 10-fold and 5.3-fold increased risk of refractory epilepsy, respectively.

Conclusions
αS and ADA activity can be used as biochemical risk factors for refractory epilepsy. However, these results need to be confirmed by prospective studies with many patients.

Biochemical risk factors associated with refractory epilepsy: alpha synuclein and adenosine deaminase

Revista Romana de Medicina de Laborator

This work is licensed under the Creative Commons Attribution 4.0 International License.

Background
Epilepsy is a common chronic neurological disorder affecting all age groups. A significant portion of children with epilepsy develop drug-resistant...

Biochemical risk factors associated with refractory epilepsy: alpha synuclein and adenosine deaminase

Published Online: Jul 31, 2024

Page range: 255 - 261

Received: May 02, 2024

Accepted: Jul 04, 2024

DOI: https://doi.org/10.2478/rrlm-2024-0021

Keywords
adenosine deaminase, alpha-synuclein, p-glycoprotein, refractory epilepsy, risk factors

© 2024 Nurdan Şener et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Biochemical risk factors associated with refractory epilepsy: alpha synuclein and adenosine deaminase

Published Online: Jul 31, 2024

Page range: 255 - 261

Received: May 02, 2024

Accepted: Jul 04, 2024

DOI: https://doi.org/10.2478/rrlm-2024-0021

Keywordsadenosine deaminase, alpha-synuclein, p-glycoprotein, refractory epilepsy, risk factors

© 2024 Nurdan Şener et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
adenosine deaminase, alpha-synuclein, p-glycoprotein, refractory epilepsy, risk factors