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PCol Exam 2 Receptor Details
Nicotinic, Adrenergic, VGCC&CCB Receptors
34
Pharmacology
Graduate
10/23/2012

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Cards

Term
Nicotinic Receptor Locations
Definition
NMJ, Autonomic ganglia, Adrenal medulla, CNS
Term
Nicotinic Receptor Type
Definition
Ligand-gated ion channel
Term
Nicotinic Agonist Effects
Definition
relaxation of skeletal muscle, increased brain alertness, physical dependence via DA release
Term
Nicotinic Antagonist Effects (@NMJ)
Definition
paralysis
Term
Beta-1 Receptor Locations
Definition
SA & AV node, cardiac myocytes, JG apparatus
Term
Beta-1 Receptor Type
Definition
Gs
Term
Beta-1 Agonist Effects
Definition
increased chronotropy, increased inotropy, increased TPR&vasocon
Term
Beta-1 Antagonist Effects
Definition
decreased chronotropy, decreased dromotropy, decreased automaticity (which occurs after MI), decreased vasocon
Term
Beta-2 Receptor Locations
Definition
Smooth Muscle: bronchi, uterus, larger vessels, hepatocytes, skeletal muscle, eye
Term
Beta-2 Agonist Effects
Definition
Smooth muscle relaxation: bronchodilation, uterine relaxation, vasodilation, increased gluconeogenesis&glycogenolysis aka increased blood sugar, muscle tremors, increased aqueous humor production, reflex tachycardia
Term
Beta-2 Receptor Type
Definition
Gs
Term
Beta-2 Antagonist Effects
Definition
Smooth muscle contraction: bronchoconstriction, uterine contraction, vasoconstriction, decreased gluconeogenesis, decreased aqueous humor production (&decreased palpitations in hypoglycemia aka warning sign to pt)
Term
Alpha-1 Receptor Locations
Definition
Smooth muscle: vascular, capillaries of nasal mucosa, bladder @ trigone sphincter, prostate gland, eye @ radial muscle
Term
Alpha-1 Receptor Type
Definition
Gq
Term
Alpha-1 Agonist Effects
Definition
Vasoconstriction (for shock), reflex bradycardia, nasal mucosa constriction (for allergies), mydriatic eyedrop (for eye exams), light sensitivity, hypertension via increased TPR, decreased urine flow
Term
Alpha-1 Antagonist Effects
Definition
Vasodilation, First Dose Phenomenon, orthostatic hypotension, runny nose, increased urine flow in BPH, no reflex vasoconstriction (Alpha-1 is blocked), reflex tachycardia, miosis
Term
Alpha-1, Beta-1, Beta-2 Antagonist Effects
Definition
Vasodilation without reflex tachycardia (Beta-1 blocker)
Term
Alpha-2 Receptor Locations
Definition
CNS, post-ganglionic sympathetic nerve ending (auto receptor), eye
Term
Alpha-2 Receptor Type
Definition
Gi
Term
Alpha-2 Agonist Effects
Definition
Decreased sympathetic outflow: vasodilation, decreased heart rate, sedation, decreased brain activity, decreased aqueous humor production, xerostomia
Term
Alpha-2 Antagonist Effects
Definition
Increased sympathetic outflow: increased heart rate, vasoconstriction, helps with ED :o
Term
D-1 Receptor Locations
Definition
Cardiac myocytes, renal artery vasculature
Term
D-1 Receptor Type
Definition
Gs
Term
D-1 Agonist Effects
Definition
Increased inotropy, vasodilation of vascular artery (increased GFR), arrhythmia, angina
Term
L-Type VGCC Locations
Definition
Cardiac myocytes, AV&SA node, vascular smooth muscle of arteries and arterioles ONLY
Term
L-Type VGCC Receptor Type
Definition
Voltage Gated Calcium Channel DUH~
Term
L-Type VGCC Agonist Effects
Definition
Increased inotropy, increased chronotropy, increased dromotropy, vasoconstriction
Term
L-Type VGCC Antagonist Effects
Definition
Vasodilation (DHP CCBs), decreased inotropy (nonDHP CCBs), decreased chronotropy (nonDHP CCBs), decreased automaticity (nonDHP CCBs)
Term
HMG CoA Reductase Inhibitor Effects
Definition
Decrease LDL by inhibiting de novo synthesis
Term
HMG CoA Reductase Inhibitor Pleitropic Effects
Definition
Decreased endothelial cell disfunction, increased plaque stability, decreased platelet activation, decreased vascular inflammation
Term
Bile Acid Sequestrant Effects
Definition
Decreased LDL via excretion of cholesterol, Increased triglycerides due to increased VLDL synthesis due to body having to make more cholesterol
Term
Fibrates Effects
Definition
Decreased triglycerides via increased breakdown and decreased synthesis
Term
Niacin Effects
Definition
Increased HDL via decreased degredation of its Apoprotein, decreased triglycerides via decreased synthesis and decreased lipolysis
Term
Ezetimibe Effects
Definition
Decreased LDL via inhibited cholesterol absorption in smint
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