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Related Concept Videos

Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for their...

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Inhibitory Synapse Formation in a Co-culture Model Incorporating GABAergic Medium Spiny Neurons and HEK293 Cells Stably Expressing GABAA Receptors
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Development of cortical GABAergic innervation.

Jasmina N Jovanovic1, Alex M Thomson

  • 1The School of Pharmacy, University of London London, UK.

Frontiers in Cellular Neuroscience
|August 3, 2011
PubMed
Summary

The development of GABAergic inhibitory interneurons in the neocortex is influenced by birth time, location, and genetic factors. Chemical cues guide their migration, and cell-cell recognition ensures proper synaptic connections for mature neuronal circuitry.

Keywords:
GABAcortexdevelopmentganglionic eminenceinhibitioninterneuronsynapsesynaptogenesis

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • The mature neocortex features diverse GABAergic inhibitory interneurons with specific layer and regional distributions.
  • Understanding the early life events shaping these interneurons is crucial for comprehending cortical development.

Purpose of the Study:

  • To discuss key events in the early development of GABAergic interneurons.
  • To explore factors influencing their destination, maturation, and target innervation.

Main Methods:

  • Review of developmental processes in the neocortex.
  • Analysis of transcription factor expression, cell migration, and synapse formation.

Main Results:

  • Interneuron fate is determined by birth time, location, and transcription factor expression in the ganglionic eminence and ventricular zone.
  • Tangential and radial migration are guided by attractant and repellent chemical cues.
  • Axon branching and synapse formation involve genetic programming and environmental interactions, including protein-protein recognition.

Conclusions:

  • Early developmental events, including precise migration and environmental interactions, are critical for the functional integration of GABAergic interneurons.
  • Specific transcription factor expression and cell-cell recognition mechanisms ensure the precise wiring of inhibitory circuits in the neocortex.