Neurotransmitters Flashcards
cocaine
blocks dopamine reuptake, leading to enhanced dopamine (pleasure) signals
amphetamines
enter presynaptic neuron, enter dopamine-filled vesicles, allows release of dopamine through pores
increased HR, BP
ecstasy
increases serotonin
morphine
binds to receptors for endorphins
drug abuse involves
reward via mesolimbic pathway
drug addiction involves
activation beyond the mesolimbic pathway
reward pathway
dopamine from VTA to NAc
nucleus accumbens
pleasure area (NAc)
Ach: Primary postsynaptic effect
excitatory
Glutamate: : Primary postsynaptic effect
excitatory
GABA: : Primary postsynaptic effect
inhibitory
Glycine: Primary postsynaptic effect
inhibitory
Catecholamines: Primary postsynaptic effect
modulatory
Serotonin (5-HT): Primary postsynaptic effect
modulatory
Histamine:: Primary postsynaptic effect
modulatory
endocannabinoids: Primary postsynaptic effect
inhibits release of lipids
Ach: Precursor
choline + acetyl CoA
Glutamate: Precursor
glutamine
GABA: Precursor
glutamate
Glycine: Precursor
serine
Catecholamines: Precursor
tyrosine
Serotonin: Precursor
tryptophan
Histamine: Precursor
histidine
Ach: Removal mechanism
AChEase
Glutamate, GABA, Glycine: Removal mechanism
transporters
Neuropeptides: Removal mechanism
proteases
ACh: Major RLS enzyme
CAT
Glutamate: Major RLS enzyme
glutaminase
Glycine: Major RLS enzyme
phosphoserine
GABA: Major RLS enzyme
GAD
Catecholamines: Major RLS enzyme
tyrosine hydroxylase
Serotonin: Major RLS enzyme
tryptophan hydroxylase
Histamine: Major RLS enzyme
histidine decarboxylase