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Accurate and Simple Measurement of the Pro-inflammatory Cytokine IL-1β using a Whole Blood Stimulation Assay
Published on: March 1, 2011
Evaluation of interleukin 1β in febrile convulsion
Fatemeh Behmanesh1, Farah Ashrafzadeh, Abdoreza Varasteh
1Allergy Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. behmaneshf@mums.ac.ir
Insights
This study found no significant difference in serum Interleukin-1β (IL-1β) levels between children with febrile convulsions (FC) and those without. Further research is needed to clarify IL-1β
Area of Science:
- Pediatric Neurology
- Immunology
- Biochemistry
Background:
- Febrile convulsion (FC) is a common childhood seizure disorder.
- Interleukin-1β (IL-1β) is implicated in febrile inflammatory responses, but its role in FC is debated.
- Conflicting existing research necessitates further investigation into IL-1β serum levels during FC.
Purpose of the Study:
- To investigate serum Interleukin-1β (IL-1β) concentrations in children experiencing febrile convulsions (FC).
- To compare IL-1β levels between febrile children with and without seizures.
- To determine any significant association between serum IL-1β and FC.
Main Methods:
- Serum IL-1β levels were measured in 60 febrile children (6 months-5 years) using ELISA.
- Participants were divided into two groups: 30 with FC and 30 controls without seizures.
- Blood samples were collected, and serum was prepared for cytokine analysis.
Main Results:
- Serum IL-1β concentrations showed a non-significant difference between the FC and control groups.
- No significant relationship was found between serum IL-1β levels and the occurrence of febrile convulsions.
- Potential reasons for non-significance include low sample size or IL-1β binding to other proteins.
Conclusions:
- The study did not find a significant association between serum IL-1β levels and febrile convulsions in children.
- Further research with larger sample sizes is recommended.
- Investigating IL-1β binding interactions may provide insights into its role in FC.
Abstract:
Febrile convulsion (FC) is the most common type of seizure in childhood that occurs in 2-5 % of the children younger than 6 years. Interleukin 1β (IL-1β) is a cytokine that contributes to febrile inflammatory responses. There are conflicting results on increasing this cytokine in serum during FC. Thus we measured IL-1ß in febrile children with or without seizure. 60 febrile children (6 months to 5 years old) were divided in two groups, one group consisted of 30 children with FC, the other group consisting of 30 children without seizure which served as control. Blood samples were collected from members of both groups and serum samples were prepared. Interleukin 1β concentrations were measured using a commercial enzyme-linked immunosorbent assay (ELISA) kit. We found that there was a difference in serum levels of interleukin 1β between FC and control group but it was not significant. This result may be due to the low number of samples or the result of interleukin 1β binding to some large proteins such as α2-macroglobolin, complement and soluble type 2 Interleukin 1 receptor, that affected the free interleukin 1β concentration.We could not find a significant relationship between serum interleukin 1β concentration and FC.
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Seizures: Classification
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:

