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27 Cards in this Set

  • Front
  • Back
Activation of the cAMP levels in a parietal cell happens when histamine binds and this activates movement of ___ from the cell into the lumen
H+
Aside from histamine ___ and ___ also increase H+ secretion by parietal cells
Gastrin, ACh
Somatostatin-secreting D cells and Prostaglandins stimulate/Inhibit Gastric Acid secretion
Inhibit
Protective Factors of the stomach (4)
Mucus. Bicarb, Restitution (Repair), Blood Flow
The major shitty part about H. Pylori is the ____ which alkalinizes the environment as well as causes a strong immune response
UREASE
Most NSAID's are weak organic acids/bases
Acids

This allows them to cross the plasma membranes of gastric epithelia because they are active in the acidic environment
NSAID's that inhibit COX-1/2 caan lead to mucosal ulcers because inhibition of PGE2 synthesis removes a protective mechanism
COX-1!!!!
Gastrin Secreting tumor of the pancreas
Zollinger-Ellison Syndrome
Ulcers in patients with increased vagal tone
Cushing's ulcers
Are H2 receptor antagonists reversible?
Yes
Why wouldn't you let a breast feeding momma take cimetidine
It crosses the placenta and is secreted in the breast milk
What are all the -zole drugs? (Omeprazole, esomeprazole, rabeprazole)
Proton Pump Inhibitors!
In order for a proton pump inhibitor to be activated they must
be in the acidic environment of the parietal cell canaliculus
The active form of all the proton pump inhibitors is called
Sulfenamide

It binds IRREVERSIBLY
H2 receptor antagonists are safe/aren't safe for pregnancy
Are safe
What's better for treating NSAID induced ulcers - Prot pump inhibitors or H2 receptor antagonists
Proton Pump Inhibitors
Four of the 5 proton pump inhibitors are metabolized by the liver which are they? (LIVERPOLE)
Pantoprazole (Least extensively metabolized), Omeprazole (Most extensively metabolized), Lansoprazole, Esomeprazole

Rabeprazole is not
Prot Pump inhibitors safe/unsafe for pregnancy
UNSAFE DONT DO IT
An anticholinergic that antagonizes muscarinic ACh receptors and thereby decreases gastric acid secretion
Dicyclomide
Name two antacids
Magnesium and Alluminum hydroxide
Patients with kidney disease should avoid _____- containing antacids
Magnesium
This coating Agent forms a gel that protects the luminal surface of the stomach from degradation by acid and pepsin
Sucralfate
This coating agent combines with mucus glycoproteins to form a barrier that protects an ulcer from further damage
Colloidal Bismuth
This drug is a prostaglandin analogue that is used in NSAID induced peptic ulcers
MisoPROSTol
Name the three components for Triple therapy when treating H. Pylori
Antibiotics and a proton pump inhibitor

Amoxicillin, clarithromycin, and a proton pump inhibitor
Serious adverse effect of cimetidine/h2 receptor antagonists
Necrotizing enterocolitis in fetus or newborn.
Adverse effect of Prot. Pump Inhib's
Pancreatitis Hepatotoxicity, Interstitial Nephritis