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

A

Galphai

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

A

GABAa

25
Q

Froms functional

A

pentameric receptors

26
Q

idoleamine is synthesized from

A

tyrptophan

27
Q

dopamine is used extensively by CNS for

A

movement coordination, emotion, and reward/ motivation

28
Q

relatively small pop of DA neurons of

A

the Substantia Nigra nucleus (SN)

29
Q

Ventral tegmental area innervates

A

large portion of cortex (hippocampus and limbic system)

30
Q

tyrosine converted by

A

L-DOPA

31
Q

L-dopa

A

converted to dopamine

32
Q

vesicle loading aka

A

vesicular monoamine transporter

33
Q

re-uptake

A

dopamine transporter (DAT)

34
Q

coke will block

A

dopamine transporter

35
Q

D1 family

A

D1 and D5, excitatory

36
Q

D2 family

A

D2-4, inhibitory

37
Q

D1 family coordination with

A

glutamate

38
Q

Downstreaming D1 signaling

A

enhances NMD