Human iPSC-derived microglia sense and dampen hyperexcitability of cortical neurons carrying the epilepsy-associated SCN2A-L1342P mutation.

Neuronal hyperexcitability is a hallmark of seizures. It has been recently shown in rodent models of seizures that microglia, the brain's resident immune cells, can respond to and modulate neuronal excitability. However, how human microglia interacts with human neurons to regulate hyperexcitability mediated by epilepsy-causing genetic mutation found in human patients remains unknown.

Assessing electrodiagnostic skills among residents and fellows: Relationships between workplace-based assessments using the Electromyography Direct Observation Tool and other measures of trainee performance.

Introduction/aims: Graduate medical education programs must ensure residents and fellows acquire skills needed for independent practice. Workplace-based observational assessments are informative but can be time- and resource-intensive. In this study we sought to gather "relations-to-other-variables" validity evidence for scores generated by the Electromyography Direct Observation Tool (EMG-DOT) to inform its use as a measure of electrodiagnostic skill acquisition.

Telestroke.

Purpose Of Review: This study aims to describe the current state of telestroke clinical applications and policies, in addition to key technical and operational aspects of the telemedicine practice.

Recent Findings: Delivery of telestroke services for neurovascular care expanded from the intravenous alteplase decision and administration in acute emergency department settings to a continuum of services in mobile and inpatient stroke units, intensive care units, virtual stroke clinics, rehabilitation, and clinical research. Telestroke cost-effectiveness is well established from multiple perspectives.

Autosomal dominant cerebellar ataxia type III: a review of the phenotypic and genotypic characteristics.

Autosomal Dominant Cerebellar Ataxia (ADCA) Type III is a type of spinocerebellar ataxia (SCA) classically characterized by pure cerebellar ataxia and occasionally by non-cerebellar signs such as pyramidal signs, ophthalmoplegia, and tremor. The onset of symptoms typically occurs in adulthood; however, a minority of patients develop clinical features in adolescence. The incidence of ADCA Type III is unknown.