Pancreatic Hormones, antidb, Hyperglycermics Flashcards
Alpha-glucosidase inhibitor associated with elevation of LFT’s
Acarbose
Examples of alpha-glucosidase inhibitors (AGI)
Acarbose, miglitol
Drugs available in combination with metformin
Acroplus Met progutazone and metformin, Janumet and Janumet XR Sitagliptin and Metformin, Glyburide, glipizide, and rosiglitazone
MOA of AGI’s
Act on intestine, delay absorption of glucose
Product of proinsulin cleavage used to assess insulin production
C-peptide
Sulfonylurea NOT recommended for elderly because of very long half life
Chlorpropamide
First generation sulfonylurea
Chlorpropamide, tolbutamide, tolazamide, etc.
MOA of metformin
Decreases hepatic glucose production and intestinal glucose absorption; increase insulin sensitivity
SE of Thiazolindinediones
Edema, mild anemia; interaction with drugs that undergo CytP450 3A4 metabolism; if used over one year, bladder Cancer; with CHF, may cause new or worsening CHF
SE of AGI’s
Flatulence (do not use beano to tx), diarrhea, abdominal cramps
Ultra long acting insulin, has over a day duration of action
Glargine (Lantus)
Hyperglycemic agent that increases cAMP and results in glycogenolysis, gluconeogenesis, reverses hypoglycemia, also used to reverse severe beta-blocker overdose and smooth muscle relaxation
Glucagon
Important in synthesis of glucose to glycogen in the liver
GLUT 2
Important in muscle and adipose tissue for glucose transport across muscles and TG storage by lipoprotein lipase activation
GLUT 4
Second generation sulfonylurea
Glyburide, glipizide, glimepiride, etc.
Reason troglitazone was withdrawn from market
Hepatic toxicity
Major side effect of insulin
Hypoglycemia
Common SE of sulfonylureas, repaglinide, and nateglinide
Hypoglycemia
MOA of both generations
Insulin release from pancreas by modifying K+ channels
MOA of repaglinide
Insulin release from pancreas; faster and shorter acting than sulfonylurea
Beta cells are found
Islets of Langerhans
Most important potential SE of metformin
Lactic acidosis
Very rapid acting insulin, having fastest onset and shortest duration of action
Lispro (Humalog)/Apidra (glulisine)
Biguanide
Metformin
Amino acid derivative for treatment of Type II diabetes
Nateglinide
Endogenous insulin
Normal C-peptide
Thiazolidinediones
Pioglitazone, Rosiglitazone, Troglitazone (withdrawn/d from market)
Alpha cells in the pancreas
Produce glucagon
Beta cells in the pancreas
Produce insulin
Delta cells in the pancreas
Produce Somatostatin
Rapid acting, crystalline zinc insulin used to reverse acute hyperglycemia
Regular (Humulin R)
Meglitinide
Repaglinide
MOA of thiazolindinediones
Stimulate PPAR-gamma receptor to regulate CHO and lipid metabolism
MOA of nateglinide
Stimulates rapid and transient release of of insulin through closure of the ATP-sensitive K+ channel
Long acting insulin
Ultralente (humulin U)