Question

what is the mechanism of action of dopamine?

what is the mechanism of action of dopamine?

Homework Answers

Answer #1
  • Dioamine is formed from 3,4- dihydroxyphenylalanin ( DOPA ).
  • It is formed by decarboxylation of DOPA.
  • It is a natural Catecholamine .
  • It is a neurotransmitter in the central nervous system along with some peripheral nervous system
  • Dopamine is a precursor for Norepinephrine.
  • Dopamine has a agonist action on the beta-adrenergic receptors and also it indirectly causing release of Norepinephrine from the storage area in the sympathetic nerve ending.
  • Dopamine produces a positive chronotropic and positive inotropic effects on the heart muscle myocardium .
  • This effect increases heart rate and cardiac contractility
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