Shared Flashcard Set

Details

Medchem 3
Medchem II
26
Other
Not Applicable
04/18/2012

Additional Other Flashcards

 


 

Cards

Term
Sulfonylurea
Definition
  • Hypoglycemic agent
  • Promote insulin release (independent)
  • Inhibit Glucagon secretion
Term
Meglitinide
Definition
  • Hypoglycemic
  • Promote insulin release (dependent)
Term
Biguanide
Definition
  • Non Hyperglycemic
  • Inhibit glucose production
  • Increase GLUT-4 transporters
Term
Glitazone
Definition
  • Post receptor effect
  • Bind PPAR -> ↑ GLUT-4 synthesis
  • (Insulin more effective)
Term
Insulin secretion process
Definition
  1. Glucose binds cell, GLUT2 transporter lets glucose in
  2. Glucose phosphorylated, ↑ATP
  3. ↑ATP causes K channel to stop, Ca comes in
  4. Ca activates adenylate cyclase (↑cAMP)
  5. Microtuble/Microfilament  contracts
  6. Insulin exocytosis
Term

B chain

Amino terminus modification

Definition
Remove first 6 AA is ok
Term

B chain

carboxy terminus modification

Definition
Remove last 3 AA is ok
Term

B chain

Modification to double activity

Definition
Delete B24 to B26
Term
Aditional Insulin formulation
Definition

Oral-lyn

  • Buccal delivery
  • Insulin spray composed from soybean lectin + lysalbinic acid
  • type I and II diabetes
Term
AA responsible for kink
Definition
PRO
Term
Turning an Insulin into LA
Definition
  1. Remove Thr30
  2. Lys29 -> C14 fatty acid
Term
α-glycosidase inhibitor
Definition
  • Decrease postprandial spike
Term
Modification to A chain to keep activity
Definition
Replace N Glycine -> L Alanine
Term
Glucose transport process
Definition
  1. Insulin binds receptor
  2. Signal to stored vessicle
  3. GLUT-IV moves & binds with membrane
  4. Glucose enters
  5. Insulin leaves
  6. GLUT-IV moves back
Term

Glucagon MOA

 

Definition
  1. Glucagon binds recepter in liver
  2. receptor activation coupled to adenylate cyclase: ↑ cAMP
  3. Phosphorylase kinase is phosphorylated
  4. PPC activated
  5. phosphorylase a activated: glycogenolysis

Adenylate cyclase -> cAMP -> protein kinases -> phosphorylase kinase -> phosphophosphorylase kinase (PPC) -> phosphorylase a -> glycogenolysis

Term
Octreotide
Definition

Somatostatin

  • treat sulfonylurea OD
Term
Insulin dissociation
Definition
  1. Protamine dissociation*
  2. Zn dissociation
  3. dimer -> monomer
Term
What converts inactive T4 to active T3?
Definition
Thyroxine dehalogenase
Term
Production of t3/T4
Definition
  1. Hypothalamus releases TRH
  2. Anterior pituitary releases TSH
  3. ATPase pumps I into thyroid hormone
  4. I + Tyr -> MIT or I2 + Tyr -> DIT
  5. DIT + DIT-> T4 or DIT + MIT -> T3
  6. Feedback inhibition
Term
Which enzyme oxidizes iodine to the reactive form?
Definition

Thyroid Peroxidase (TPO)

 

Term
What proteins transport T3 and T4?
Definition
  • Thyroxine binding globulin
  • Thyroxine binding prealbumin
Term
Two drug classes that can contribute to osteoparosis
Definition
  1. Thiazoladinediones
  2. Antiepileptics
Term
Role of Calcitonin
Definition
  • ↓ bone breakdown (↓ osteoclast)
  • ↓ Vitamin D activation
  • ↓ Ca absorption from GI
  • ↑ Ca excretion

"when you have a ton of Ca"

Term
Role of PTH
Definition
  • ↑ Ca mobilization by activating adenylate cyclase
  • ↑ Synthesis/activation of vitamin D
  • ↑ Absorption of Ca from GI
  • ↑ Reabsorption of Ca from renal
Term
What is he process of activating vitamin D?
Definition
  1. Vitamin D 25 hydroxylase (liver)
  2. Vitamin D 1 hydroxylase (kidney)
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