DM Flashcards
primary defect in T1DM
pancreatic beta cells due to autoimmune process
defects in T2DM
- Insulin resistance and impaired insulin secretion
- Hyperinsulinemia- relatively new T2DM bc pancreas is releasing insulin but cells are resistant
- Insulin resistance
insulin lispro
onset- 15-30 minutes
peak 30 minutes - 2- 2.5 hrs
duration 3-6 hrs
insulin lispro peak
30 minutes- 2.5 hrs
insulin lispro duration
3-6 hours
insulin aspart (novolog) onset
10-20 minutes
peak 1-3 hrs
duration 3-5 hrs
insulin aspart - novolog- peak
1-3hours
insulin aspart-novolog- duration
3-5 hrs
insulin glulisine-aprida onset
10-15 minutes
peak 1 - 1.5 hrs
duration 3-5 hrs
insulin glulisine aprida peak
1 - 1.5 hrs
insulin glulisine - aprida- duration
3-5 hrs
regular insulin onset, peak, duration
onset- 30 - 60 mins
peak 1 -5 hrs
duration 6-10 hrs
NPH
onset 60-120 minutes
peak 6-14 hrs
duration 18-24 hrs
insulin glargine
onset 70 min
peak none
duration 18-24 hrs
insulin detemir
onset 60 - 120 min
peak 12 - 24 hrs
duration varies
insulin degludec
onset 60 min
peak none
duration 42 hrs
metformin MOA
lowers BG and improves glucose tolerance in 3 ways
1- Inhibits glucose production in the liver
2- Reduces (slightly) glucose absorption in gut
3- Sensitizes insulin receptors in target tissues (fat and muscle) and thereby increases glucose uptake in response to whatever insulin may be available
Metformin metabolized where
none, absorbed in small intestine
metformin excretion
kidneys
metformin AE
• most common GI- decreased appetite, nausea, diarrhea (subside w/time)
• does not cause wt gain, wt neutral drug
• BLACK BOX- lactic acidosis
o Avoid in ppl w/ liver disease, severe infection, hx of lactic acidosis, renal insufficiency, etoh excess, show and conditions that can result in hypoxemia, HF (predisposes)
sulfonylurea MOA
stimulating release of insulin and increasing cell sensitivity
sulfonylurea AE
hypoglycemia
wt gain
metaglindines aka glidines
nateglidine, repaglinide
- Same MOA of sulfonylureas- stimulation of pancreatic insulin release
- Difference between sulfonylureas and glinides is that glinides are shorter acting and taken w/ each meal
- AE- hypoglycemia
Thiazolidinediones (glitazones)
- Reduce glucose levels primarily by decreasing insulin resistance
- Rosiglitazone [Avandia]: Restricted use
- Pioglitazone [Actos