807 results
Receptor actions of sympathomimetic and dopaminergic agents.
Adrenaline (epinephrine) 
Noradrenaline (norepinephrine) 
Isoprenaline 
Dopamine 
Dopexamine 
Dobutamine 

#Pharmacology #Vasopressors
Isoprenaline Dopamine ... Dopexamine ... #Specificity #Dopamine
Action potential
a, adrenergic receptor
Heart, glands, smooth muscle
Inactivated:
by #MAO
by #COMT
Capillary
Diffusion into blood (raises NE in blood)
Activates
Inhibits
Adrenal medulla
#L-tyrosine
Varicosities
Epinephrine
Bloodstream
Inactivated
#L-tyrosine Varicosities ... NE #L-dopa #Dopamine
Dopamine actions as influenced by drugs

#Dopamine #Agonists #Antagonists #Medications #Drugs #Pharmacology
Dopamine actions ... influenced by drugs #Dopamine
Vasopressors and Inotropes - Comparison Table
Activity: Alpha-1, Beta-1, Dopamine, SVR, HR, CO, BP
Phenylephrine
Vasopressin
Norepinephrine
Epinephrine
Dopamine
Dobutamine
Isoproterenol
Milrinone

- Dr. Eric Strong
Alpha-1, Beta-1, Dopamine ... Norepinephrine Epinephrine Dopamine
Schizophrenia: Pathogenesis and Symptoms
Increased dopaminergic transmission in mesolimbic projection
-> Dopaminergic neurons here project into the limbic
. -> Abnormal dopamine ... ) -> Abnormal dopamine ... Schizophrenia #pathophysiology
Addictions: Pathogenesis

Mesolimbic Dopaminergic Pathway:
 • Dopaminergic neurons in Ventral Tegmental Area (VTA) in midbrain under continuous
the VTA releases dopamine ... Drug-induced increase in dopamine ... of neurons in dopamine ... Drug #Addiction #Pathophysiology
Vasopressors Table 
Rough properties by Target Receptor, Heart Rate/Inotropy, Systemic Vascular Resistance, Cardiac Output, Blood Pressure,
20 mcg/min - Dopamine ... mcg/kg/min - Dopamine ... mcg/kg/min - Dopamine
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
release; however, dopamine ... endocrinology #pathophysiology
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
signaling and dopamine ... RheumaticFever #pathophysiology
Pathogenesis of Rheumatic Fever

Pathogenesis of rheumatic fever. 
1. GAS pharyngitis leads to antigenic presentation of pathogenic
autoantibodies can target dopamine ... increased release of dopamine ... Rheumatic #Fever #Pathophysiology