Pharmacogenetics/genomics Flashcards
Pharmacokinetics (4)
Clearance/excretion
Metabolism
Transportation
Absorption
Pharmacodynamics (2)
Drug activity
Interact with downstream targets
Pharmocogentics
Inherited differences in drug metabolism and response
Pharmacogenomics
Use GWAS to assess the impact of SNPs on drug therapy
CYP general information (name, location)
Cytochrome p450
Contains heme
Expressed in liver
CYP functions to: (2)
Export endogenous and xenobiotic compounds
Activate drugs
Drug Metabolism
Phase 1: add hydroxyl group
Phase 2: Function Alize hydroxyl group to increase solubility so it can be excreted
Warfarin has jobs include: (3)
Prevent thrombosis
Impair synthesis of clotting factors that are dependent on vitamin K
Inhibit vitamin K epoxide reductase
Warfarin’ main job is to:
Find vitamin K and not interact with CYPs in the liver
Warfarin’s target is
Vitamin K epoxide reductase (gene is VKORC1)
VKORC1 is needed to:
Carboxylate coagulation factors
If you inhibit VKORC1 then…..
You can’t regenerate reduced vitamin K
By taking warfarin you inhibit ________ which will inhibit __________ and slow down __________
Vitamin K recycling
Recycling of VKORC1
Thrombogenesis
Drug tolerance
Need higher dosage to get effect
Drug intolerance
Need lower dosage
Also known as drug sensitivity