Diabetes Therapy Flashcards

1
Q

name the three sulfonyureas

A

glipizide
glyburide
glimepiride

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2
Q

name the two meglitinides

A

repagalinide

nateglinide

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3
Q

what is the MoA of sulfonyureas and meglitinides?

A

increase insulin secretion by binding the SUR channel and blocking K+ efflux and starting insuln secretion pathway

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4
Q

what can sulfonyureas and meglitinides cause?

A

hypoglycemia

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5
Q

what is drug class of glipizide, glyburide and glimepiride?

A

sulfonyureas

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6
Q

what is the main biguanide to know?

A

metformin

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7
Q

what is the MoA of metformin?

A

though to sensitize liver to glucose and deacrease gluconeogenesis

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8
Q

what are three SEs of metformin?

A

diarrhea, nausea and low B12

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9
Q

what is the main risk with metformin? what further increases this risk?

A

lactic acidosis…if patient has renal fialure

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10
Q

other thn glucose levels, what does metformin help with?

A

thought to decrease lipid levels and maybe even cause some weight loss

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11
Q

what molecule is it suspected that metformin activates in the liver?

A

AMPK

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12
Q

does metformin cause hypoglycemia?

A

NO

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13
Q

name the two thiazolidinediones

A

pioglitazone and rosiglitazone

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14
Q

what is the MoA of pioglitazone and rosiglitazone?

A

insulin sensitizer of muscle and adipose tissue

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15
Q

do pioglitazone and rosiglitazone cause hypoglycemi?

A

no

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16
Q

name the three SEs of pioglitazone and rosiglitazone?

A

edema and weight gain and fractures

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17
Q

what is main severe risks with pioglitazone and rosiglitazone?

A

CHF and liver toxicity

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18
Q

what cancer might there be increased risk with pioglitazone?

A

bladder cancer

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19
Q

what molecule on fat do pioglitazone and rosiglitazone activate? what does this do?

A

activate PPAR-gamma and this increases insulin sensitivity of the adipose cells and increases levels of adiponectin

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20
Q

name the two a glucosidase inhibitors

A

acarbose and miglitol

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21
Q

what is the MoA of miglitol and acarbose?

A

inhibit intestinal BB enzyme a glucosidases to delay absorption of glucose…lowering postprandial glucose

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22
Q

when do acarbose and miglitol have their main effects?

A

postprandial

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23
Q

what is the main SE with acarbose and miglitol?

A

bloating and Gi upset

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24
Q

what is the normal fxn of incretin GLP-1?

A

promotes satiety
stimulates glucose dependent insulin secretion
slows gastic emptying
inhibits glucagon release

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25
name the two GLP-1 incretin analogues?
exenatide | liraglutide
26
what is the MoA of exenatide and liraglutide?
promotes satiety stimulates glucose dependent insulin secretion slows gastic emptying inhibits glucagon release
27
what are the SEs of exenatide and liraglutide?
nausea and pancreatitsi
28
what is a sometimes desired SE of exenatide and liraglutide?
weight loss and satiety increase
29
what is secreted with insulin from beta cells?
amylin
30
what is role of amylin in body?
inhibit glucagon release increase satiety slow gastric emptying
31
what is drug that can act as amylin in diabetes rx?
pramlinitide
32
what is MOA of pramlinitide?
inhibit glucagon release | increase satiety and slow gastric emptying
33
what is drawback of use of pramlinitide?
have to give injcn with every meal
34
name the four SGLT2 inhibitors
canagliflozin dapagliflozin empagliflozin ertugliflozin
35
what is the ending of all the SGLT2 drugs?
gliflozin
36
what is MoA of SGLT2 inhibitors?
inhibit the SGLT2 transporter in the PCT of the kidney so glucose secreted
37
what is insulin therapy effect on liver?
increase glucose storage as glycogen
38
what is insulin therapy effect on muscle?
increase glycogen and protein synthesis
39
what is insulin therapy effect on fat??
increase TG storage
40
what are the two subunits of human insulin?
alpha and beta chain
41
what are the two modified human insulins?
regular insulin and NPH insulin
42
regular insulin has what duration effect?
short acting insulin
43
NPH insulin has what duration effect?
intermediate acting insulin
44
short acting normal insulin lasts about how many hours?
6-8
45
intermediate acting NPH insulin lasts about how long?
12-20 hours
46
name the three insulin analogues that are rapid acting?
aspart glulisine lispro
47
how quickly is peak effect of aspart, glulisine and lispro?
1 hr after administration
48
what is mnemonic to remember the rapid acting insulins?
no LisproAaspartGlulisine
49
name the two long acting insulins
detemir and glargine
50
why are rapid acting insulins able to act so fast?
because they are monomers and wuickly absorbed
51
what makes long acting insulins act longer?
they are hexamers and have to be broken down to monomers to act
52
how long to long acting insulins act?
no real peak time...system for say 24 hrs
53
when is peak of NPH?
4-10 hrs
54
when is peak or normal insulin?
2-3 hrs
55
when is peak of fast acting?
1 hr peak
56
what is average insulin requirement in type 1 DM?
0.5-0.6U/Kg/day
57
what is a normal insulin routine for type I DM?
regular insulin in AM and before dinner | intermediate insulin in AM and at dinner
58
overnight glucose is controlled by what part of insulin dose?
prior nights intermediate acting insulin
59
pre lunch glucose is controlled by what part of insulin dose?
morning short acting insulin
60
pre supper glucose is controlled by what part of insulin dose?
morning intermediate acting dose
61
bedtime glucose is controlled by what portion of the insulin dose?
supper short acting insulin
62
what is a dermatologic manifestation of insulin use?
lipdystrophy where you can get lipohypertrophy around injxn sites
63
what is lipoatrophy?
immune mediated with loss of fat at insulin injxn sites...this is very uncommon