Serum Profile of Inflammatory Factors, Immune and Angiogenic in Temporal Lobe Epilepsy

Study Overview
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Brief Summary
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Epilepsy affects 0.7% of the general population and 15-20% of patients develop drug resistance. The temporal lobe epilepsy (TLE) is the most common symptomatic focal epilepsies with a particularly high rate of drug (about 20 to 30%). In this type of epilepsy, where feasible, surgical removal of the home is the best therapeutic outcome. Mechanisms of epileptogenesis and drug resistance are still mysterious. Of recent clinical and experimental studies have shown that dysfunction of the blood-brain barrier (BBB) contributes to epileptogenesis and drug resistance. It is now recognized that cytokines exacerbate the excitability and permeability of the BBB, which was recently confirmed by studies showing that treatment of inflammation reduces epileptogenesis. Moreover, we have described an association between pathological angiogenesis and BBB permeability in the tissue of patients with excision of drug-resistant TLE. With experimental models, it was revealed an activation of the VEGF-VEGFR2 by seizures leading to rapid degradation of the BBB. The investigators hypothesis is that the identification of factors involved in BBB permeability may designate potential targets for drug-resistant partial epilepsy.

Official Title
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Serum Profile of Inflammatory Factors, Immune and Angiogenic in Temporal Lobe Epilepsy: New Targets for Diagnosis and Prediction of Drug Resistance

Conditions
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Epilepsy

Intervention / Treatment
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* Other: blood sampling for drug resistance biomarkers
* Device: Magnetic Resonance Imaging


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient with temporal lobe epilepsy (TLE) Patient with epilepsy for at least two years. Arm 1: Patient with drug-resistant TLE proved potentially a candidate for surgery. Arm 2: Patient with TLE seizure-free for 12 months or more Exclusion Criteria: Patient with a scalable general pathology may lead to increased inflammatory markers: neoplasia, chronic inflammatory diseases etc. ... Patient with neurological history other than epilepsy with evolutionary potential or likely to interfere with the inflammatory markers

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Antiepileptic Drug resistant<br>Adult patients suffering from epilepsy drug-resistant and potentially surgical candidates | Other: blood sampling for drug resistance biomarkers<br>* comparison of Inflammatory Factors, Immune and Angiogenic in Temporal Lobe Epilepsy<br>Device: Magnetic Resonance Imaging<br> <br> |
| Experimental: Antiepileptic drug Controlled group<br>epilepsy well controlled by antiepileptic drugs | Other: blood sampling for drug resistance biomarkers<br>* comparison of Inflammatory Factors, Immune and Angiogenic in Temporal Lobe Epilepsy<br>Device: Magnetic Resonance Imaging<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Comparison of Biomarkers | Identify blood sampling biomarkers of drug resistance in temporal lobe epilepsy, an analysis by large-scale expression profiling of serum factors involved in inflammation, immunity and angiogenesis | 12 months after inclusion (day 0) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| permeability of the blood-brain barrier | Compare changes in lesion morphologic imaging and blood flow measurements by Magnetic Resonance Imaging between the two groups | Day 0 |