GAMMA AND GABA Flashcards

1
Q

Gamma-aminobutyric acid (GABA)

A

Primary inhibitory neurotransmitter

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2
Q

Gaba is synthesized from

A

glutamate

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3
Q

GAD- catalyzes reactions

A

glutamic acids decarboxylase

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4
Q

Required for synthesize and catalyzing

A

co-factor pyridoxal phosphate

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5
Q

VIATT

A

vesicular inhibitory amino acids transporter

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6
Q

GABA is removed via

A

GAT transporter

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7
Q

GAT transporter aka

A

Na transporter

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8
Q

GABA is broken down into

A

succinate

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9
Q

GABA degradation can also produce

A

gamma-hydroxybutyrate (GHB)

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10
Q

Subunits combine to form

A

a functional pentameric receptor

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11
Q

most common subunits

A

2 alpha; 2 beta 1 gamma

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12
Q

Fast GABAg transmission mediated mainly by

A

GABAb receptors

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13
Q

GABAa receptors are what type of channel

A

ligand-activated chloride channel

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14
Q

GABA (urgent neurons) are related to

A

seizuers

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15
Q

GABAb receptors are central to the modulation of

A

excitatory and inhibitory synaptic activity

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16
Q

GABAb inhibits NT release in terminals through

A

inhibition of voltage gated Ca channels or hyperpolarizes postsynaptic neurons by activating inwardly rectifying K channels

17
Q

GABAbR are obligatory

A

heteromers composed of 1 and 2

18
Q

R1 binds agonist with

A

high affinity

19
Q

R2 mediates coupling to

20
Q

GABA has metatropic receptors that are

A

primarily inhibitory

21
Q

glycine is

A

from NMDA receptor coagonist

22
Q

glycine responds to

A

inotropic receptors

23
Q

ligand-gated ion channels are

A

super family receptors

24
Q

homologous to

25
Froms functional
pentameric receptors
26
idoleamine is synthesized from
tyrptophan
27
dopamine is used extensively by CNS for
movement coordination, emotion, and reward/ motivation
28
relatively small pop of DA neurons of
the Substantia Nigra nucleus (SN)
29
Ventral tegmental area innervates
large portion of cortex (hippocampus and limbic system)
30
tyrosine converted by
L-DOPA
31
L-dopa
converted to dopamine
32
vesicle loading aka
vesicular monoamine transporter
33
re-uptake
dopamine transporter (DAT)
34
coke will block
dopamine transporter
35
D1 family
D1 and D5, excitatory
36
D2 family
D2-4, inhibitory
37
D1 family coordination with
glutamate
38
Downstreaming D1 signaling
enhances NMD