Chapter 6 Movement Flashcards
Nuclei that are unique to the indirect pathway and result in disinhibition of GP interna resulting in increased thalamic inhibition.
GP externa and STN
Direct pathway function
Does the work - promotes movement via D1 receptors
Indirect pathway function
inhibits movement via D2
MOA of ropinirole and pramipexole
D2 and D3 Agonists
entacapone MOA
COMT inhibitor
PD Rx that can cause dyskinesia
dopamine agnosists
Gene implicated in hereditary PD
LRRK2
Tongue protrusion dystonia, chorea, dx by blood smear
Neuroacanthocytosis
Huntington’s disease
chrom 4, AD, CAG
Primary generalized dystonia
chrom 9, DYT1, torsin A, AD
Filipino with dystonia and PD
DYT3, Lubag, X-linked
Dystonia in young girl with diurnal variation and PD
dopa responsive, AD, GCH1 on chrom 14
Episodic Ataxia type 1
HCN1A facial twitching
Episodic Ataxia type 2
CACN1A4 (FH migraine as well), nystagmus and dysarthria
Neurotransmitter implicated in familial hyperkplexia
glycine
high arched feet, scoliosis, neuropathy, ataxia, cardiomyopathy
Friedrichs ataxia, GAA, Frataxin on chrom 9, AR
SCA type 3
CAG, AD, ataxia spasticity neuropathy