Endocrine Flashcards
what insulins are rapid-acting? (3)
- lispro
- aspart
- glulisine
what is lispro?
rapid-acting insulin
what is aspart?
rapid-acting insulin
what is glulisine?
rapid-acting insulin
mechanism of insulins
bind insulin receptor (tyrosine kinase)
liver: increase glycogen
muscle: increase glycogen, protein synthesis, increase K uptake
fat: increase triglyceride
clinical use rapid-acting insulins
post-prandial control
side effects of insulins (2)
- hypoglycemia
2. rare hypersensitivity
what is a short-acting insulin?
regular
what is regular?
short-acting insulin
clinical use short-acting insulin
DKA, hyperkalemia (+ glucose), stress hyperglycemia
what is an intermediate-acting insulin?
NPH
what is NPH?
intermediate-acting insulin
what are long-acting insulins? (2)
- glargine
2. detemir
clinical use long-acting insulins
basal glucose control
what is a biguanide?
metformin
drug class metformin
biguanide
what does metformin do?
increases insulin sensitivity
decrease gluconeogenesis
increase glycolysis
increase peripheral glucose uptake
what drug is first line therapy in type 2 DM?
metformin
side effects metformin (2)
- GI upset
2. lactic acidosis (DO NOT use in renal failure!)
can you use metformin in renal failure?
NO!!
what are two first generation sulfonylureas?
- tolbutamine
2. chlorpropamide
what are three second generation sulfonylureas?
- glyburide
- glimepiride
- glipizide
what is tolbutamine?
1st generation sulfonylurea
what is chlorpropamide?
1st generation sulfonylurea
what is glyburide?
2nd generation sulfonylurea
what is glimepiride?
2nd generation sulfonylurea
what is glipizide?
2nd generation sulfonylurea
sulfonylurea mechanism
close K channel in beta cell –> depolarizes –> Ca influx –> insulin release
are sulfonylureas useful in type I diabetes?
NO!!
what type of DM are sulfonylureas useful in?
Type 2 (stimulates release of endogenous insulin)
side effects of sulfonylurea use in renal failure
hypoglycemia (risk increased)
side effects 1st generation sulfonylureas
disulfiram-like effects
side effects 2nd generation sulfonylureas
hypoglycemia
what are two glitazones/thiazolidinediones?
- pioglitazone
2. rosiglitazone
what is pioglitazone?
glitazone/thiazolidinedione
what is rosiglitazone?
glitazone/thiazolidinedione
mechanism glitazone/thiazolidinedione
increase insulin sensitivity by binding PPAR-gamma nuclear transcription regulator
PPAR-gamma regulates fatty acid storage and glucose metabolism
side effects glitazone/thiazolidinedione
- weight gain
- edema
- hepatotoxicity
- heart failure
what are two alpha-glucosidase inhibitors?
- acarbose
2. miglitol