Sodium selenate treatment improves symptoms and seizure susceptibility in a malin-deficient mouse model of Lafora disease

Summary

Objective

To search for new therapies aimed at ameliorating the neurologic symptoms and epilepsy developing in patients with Lafora disease.

Methods

Lafora disease is caused by loss-of-function mutations in either the EPM2A or EPM2B genes. Epm2a/ and Epm2b/ mice display neurologic and behavioral abnormalities similar to those found in patients. Selenium is a potent antioxidant and its deficiency has been related to the development of certain diseases, including epilepsy. In this study, we investigated whether sodium selenate treatment improved ...

Seguir leyendo →
0

Towards prognostic biomarkers from BOLD fluctuations to differentiate a first epileptic seizure from new-onset epilepsy

Summary

Objective

The diagnosis of epilepsy cannot be reliably made prior to a patient’s second seizure in most cases. Therefore, adequate diagnostic tools are needed to differentiate subjects with a first seizure from those with a seizure preceding the onset of epilepsy. The objective was to explore spontaneous blood oxygen level–dependent (BOLD) fluctuations in subjects with a first-ever seizure and patients with new-onset epilepsy (NOE), and to find characteristic biomarkers for seizure recurrence after the first seizure.

Methods

We examined ...

Seguir leyendo →
0

Towards prognostic biomarkers from BOLD fluctuations to differentiate a first epileptic seizure from new-onset epilepsy

Summary

Objective

The diagnosis of epilepsy cannot be reliably made prior to a patient’s second seizure in most cases. Therefore, adequate diagnostic tools are needed to differentiate subjects with a first seizure from those with a seizure preceding the onset of epilepsy. The objective was to explore spontaneous blood oxygen level–dependent (BOLD) fluctuations in subjects with a first-ever seizure and patients with new-onset epilepsy (NOE), and to find characteristic biomarkers for seizure recurrence after the first seizure.

Methods

We examined ...

Seguir leyendo →
0

Neurosteroid-sensitive δ-GABAA receptors: A role in epileptogenesis?

Summary

Objective

We determined the role of the neurosteroid-sensitive δ subunit–containing γ-aminobutyric acid A receptors (δ-GABARs) in epileptogenesis.

Methods

Status epilepticus (SE) was induced via lithium pilocarpine in adult rats, and seizures were assessed by continuous video–electroencephalography (EEG) monitoring. Finasteride was administered to inhibit neurosteroid synthesis. The total and surface protein expression of hippocampal δ, α4, and γ2 GABAR subunits was studied using biotinylation assays and Western blotting. Neurosteroid potentiation of the tonic currents of dentate granule cells (DGCs) was ...

Seguir leyendo →
0

Neurosteroid-sensitive δ-GABAA receptors: A role in epileptogenesis?

Summary

Objective

We determined the role of the neurosteroid-sensitive δ subunit–containing γ-aminobutyric acid A receptors (δ-GABARs) in epileptogenesis.

Methods

Status epilepticus (SE) was induced via lithium pilocarpine in adult rats, and seizures were assessed by continuous video–electroencephalography (EEG) monitoring. Finasteride was administered to inhibit neurosteroid synthesis. The total and surface protein expression of hippocampal δ, α4, and γ2 GABAR subunits was studied using biotinylation assays and Western blotting. Neurosteroid potentiation of the tonic currents of dentate granule cells (DGCs) was ...

Seguir leyendo →
0

Frequency of CNKSR2 mutation in the X-linked epilepsy-aphasia spectrum

Summary

Synaptic proteins are critical to neuronal function in the brain, and their deficiency can lead to seizures and cognitive impairments. CNKSR2 (connector enhancer of KSR2) is a synaptic protein involved in Ras signaling-mediated neuronal proliferation, migration and differentiation. Mutations in the X-linked gene CNKSR2 have been described in patients with seizures and neurodevelopmental deficits, especially those affecting language. In this study, we sequenced 112 patients with phenotypes within the epilepsy-aphasia spectrum (EAS) to determine the frequency of ...

Seguir leyendo →
0

Preclinical evaluation of intravenous NAX 810-2, a novel GalR2-preferring analog, for anticonvulsant efficacy and pharmacokinetics

Summary

Objective

Potential clinical utility of galanin or peptidic analogs has been hindered by poor metabolic stability, lack of brain penetration, and hyperglycemia due to galanin receptor subtype 1 (GalR1) activation. NAX 810-2, a galanin receptor subtype 2 (GalR2)-preferring galanin analog, possesses 15-fold greater affinity for GalR2 over GalR1 and protects against seizures in the mouse 6 Hz, corneal kindling, and Frings audiogenic seizure models. The purpose of these studies was to further evaluate the preclinical efficacy and pharmacokinetics ...

Seguir leyendo →
0

Malformation risk of antiepileptic drug exposure during pregnancy in women with epilepsy: Results from a pregnancy registry in South India

Summary

Objective

Kerala Registry of Epilepsy and Pregnancy had been prospectively evaluating the reproductive issues of women with epilepsy since April 1998. This analysis aimed to estimate the relative risk of major congenital malformations (MCM) to the registrants.

Methods

All pregnancies with known outcome in this register until December 2013 were included. Malformation status was evaluated by antenatal ultrasonography, physical examination at birth, echocardiography, and abdomen ultrasonography at 3 months of age and a final review at 1 year of ...

Seguir leyendo →
0

Malformation risk of antiepileptic drug exposure during pregnancy in women with epilepsy: Results from a pregnancy registry in South India

Summary

Objective

Kerala Registry of Epilepsy and Pregnancy had been prospectively evaluating the reproductive issues of women with epilepsy since April 1998. This analysis aimed to estimate the relative risk of major congenital malformations (MCM) to the registrants.

Methods

All pregnancies with known outcome in this register until December 2013 were included. Malformation status was evaluated by antenatal ultrasonography, physical examination at birth, echocardiography, and abdomen ultrasonography at 3 months of age and a final review at 1 year of ...

Seguir leyendo →
0

Malformation risk of antiepileptic drug exposure during pregnancy in women with epilepsy: Results from a pregnancy registry in South India

Summary

Objective

Kerala Registry of Epilepsy and Pregnancy had been prospectively evaluating the reproductive issues of women with epilepsy since April 1998. This analysis aimed to estimate the relative risk of major congenital malformations (MCM) to the registrants.

Methods

All pregnancies with known outcome in this register until December 2013 were included. Malformation status was evaluated by antenatal ultrasonography, physical examination at birth, echocardiography, and abdomen ultrasonography at 3 months of age and a final review at 1 year of ...

Seguir leyendo →
0
Página 202 de 226 «...170180190200201202203204...»