Parkinsons - NF Flashcards

1
Q

Parkinsons symptoms -6

A
Akinesia
Bradykinesia
Resting tremor
Loss of postural reflexes
Depression
Constipation
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2
Q

Dopamine making pathway

A

Tyrosine
L dopa
Dopamine

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3
Q

Tyrosine to L dopa enzyme

A

Tyrosine hydroxylase

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4
Q

L dopa to dopamine enz

A

L dopa carboxylase

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5
Q

PARK2 cause

A

Mutation in PARKIN gene
Miss form of E2 ubiquitin protein ligase
E2 normally ubiquitinases alpha synuclein
Markes it for degredations

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6
Q

PARK2 found in

A

Juvenile form - early 20s

Autosomal recessive, slow progressions

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7
Q

Autosomal recessive PD

A

PARK2

PARK6

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8
Q

PARK6 cause

A

Mutation in PINK1

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9
Q

What does PINK do

A

Phosphorylates PARKIN, allowing the destruction of a synuclein

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10
Q

What is mitophagy

A

Breaking down broken mitochondira

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11
Q

Mutations associated with mitophagy

A

PINK1 and PARKIN

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12
Q

Autosomal dominant Parkinsons

A

PARK1
PARK4
PARK8

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13
Q

What is PARK1

A

Early onset
a synuclein mutation
causes it to become aggregated

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14
Q

What do a synuclein accumations cause

A

Lewy bodies that damage cells

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15
Q

PARK4 causes

A

early onset
a synuclein triplication
Get 4 functioning copies which agreegate

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16
Q

PARK8 mutations in

A

LRRK2 - Leucine rich repeat kinase

17
Q

Environmental factors in PD

A
Post encephalitis
MPTP
Neurotoxins such as rotenone, paraquat
CO poisoning
Traumatic injury to head and repetitive
Stroke
18
Q

What nACh subunits can drive dopamine release

A

a6 b2 (found in dopaminergic neurons and terminals) and a4 b2