Neuropharmacology Flashcards
Ionotropic is also a what?
Ligand gated ion channel
What are the two receptor types
Iontropic and metatropic
Metabotropic activates what proteins?
G proteins
When do iontropic receptors open?
When bound by a transmitter
Are ionotropic receptors direct or indirect?
Direct
Metabotropic receptors recognize the transmitter but instead activate what?
G proteins
Are metabotropic receptors direct or indirect?
Indirect
What do agonists do?
Initiates normal effects of the receptor
Agonists also mean what?
Mimic
What do antagonists do?
Prevents a receptor from being activated by other ligands
Name the 4 amino acids
Glycine
GABA
Aspartate
Glutamate
Glutamate is what?
The most common excitatory neurotransmitter in brain and spinal cord
What are glutamate’s 3 receptors?
AMPA, NMDA, kainate
Glutamate also acts on what?
mGluRs - slower metabotropic receptors
What is excitotoxicity?
Neural injury such as stroke or head trauma causes excess release of glutamate, which kills neurons