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Understanding Neurotransmitter Balance: Glutamate and GABA Study Guide

This guide explains the critical role of GABA in the central nervous system, differentiating between ionotropic and metabotropic receptors. It delves into the structure and function of GABA-A receptors, explaining how they mediate inhibition through chloride ion influx. The guide further explores the mechanisms by which common drugs like benzodiazepines, barbiturates, and ethanol interact with GABA-A receptors, highlighting their therapeutic and potential adverse effects. This content is suitabl

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GABAergic and Glutamatergic Neurotransmission Pharmacology

GABAergic and Glutamatergic Neurotransmission

This lecture describes the physiology of GABAergic and glutamatergic neurotransmission and how pharmacological agents modify these processes.

  • Central nervous system
  • Neurotransmission
  • Glutamate
  • Action potential
  • Depolarization
  • Hyperpolarization
  • Ionotropic receptors
  • Metabotropic receptors
  • Excitatory postsynaptic potential (EPSP)
  • Inhibitory postsynaptic potential (IPSC)
  • Ion conductance
  • Benzodiazepines
  • Barbiturates

Glutamate and GABA Synthesis and Metabolism

Glutamate and GABA Synthesis and Metabolism

This content explores the biochemical pathways of glutamate and GABA synthesis, metabolism, and the glutamate-glutamine cycle involving neuronal and glial cells.

  • Glutamic Acid Decarboxylase (GAD)
  • Vesicular GABA transporter (VGAT)
  • GABA-Transaminase (GABA-T)
  • Glutamate-glutamine cycle
  • Glutamine synthetase
  • Glutaminase
  • CNS therapeutics

Types and Pharmacology of GABA Receptors

CNS Pharmacology of GABA Receptors

This lecture covers ionotropic and metabotropic GABA receptors, specifically focusing on GABA-A receptor structure, drug binding sites, and the effects of benzodiazepines, barbiturates, and ethanol.

  • Ionotropic GABA receptors
  • Metabotropic GABA receptors
  • GABA-A receptor pentameric structure
  • Chloride ion channels
  • Neuronal membrane hyperpolarization
  • Benzodiazepine allosteric modulation
  • Barbiturate mechanism of action
  • GABA-C receptor distribution

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