parkinson by amir
DESCRIPTION
Parkinson's DiseaseTRANSCRIPT
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PARKINSON’S DISEASE
Alam Zeb
Roll no.09
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Parkinsonism is a progressive degenerative,disorder of muscle movement, due to dysfunction in basal ganglia.
four cardinal features:1.Bradykinesia or hypokinesia2.Muscle rigidity3.Resting tremor 4.Impairment of postural balance leading to
disturbances of gait, and falling. The secondary manifestations are mask-like face,
difficulty in speech, slowing of mental process and dementia.
Parkinson’s disease
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Degeneration of neurons in the substantia nigra pars compacta.
Degeneration of nigrostriatal (dopaminergic) tract
Imbalance primarily between the excitatory neurotransmitter Acetylcholine and inhibitory neurotransmitter Dopamine in the Basal Ganglia.
Parkinson Pathophysiology
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Pathology
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Treatment of Parkinson disease
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Drugs that replace dopamine (Dopamine precursor):
Levodopa Dopa-decarboxylase inhibitors (Drugs which
increase the central availability of Levodopa) Carbidopa They act in the periphery as
they do not enter brain
Drugs which increase release or inhibit reuptake of dopamine (also called dopamine facilitator)
Amantadine
Drugs which increase dopaminergic activity.