Pharmaceutical Chemistry and Gastric Acid Regulation Flashcards

Vocabulary flashcards reviewing pharmaceutical roles, chemical biology, gastric acid physiology, and peptic ulcer treatments.

Organic Chemists

Scientists who design and synthesize potential drug candidate molecules.

Pharmacologists

Scientists who study the biochemical and physiological properties of potential drug molecules and help optimize them.

Pharmaceutical Chemistry

A field defined by the partnership between organic chemists and pharmacologists, which operates as a subset of chemical biology.

Chemical Biology

The application of chemistry to solve biological problems.

Compressed $CO_2$

A nonpolar compound contained in fire extinguishers.

Stomach $HCl$ Production

The daily secretion of hydrochloric acid by parietal cells, totaling about $2\,L$ per day at a concentration of about $0.02\,M$.

Gastric Juice pH Range

The normal pH range of stomach juice, which is $1.0-2.5$.

Protein Denaturation

The process by which stomach $HCl$ unfolds the natural folded structures of proteins during digestion, exposing them to breakdown by digestive enzymes.

Gastric Mucosa

The tissue lining and mucous secretions that insulate and protect the stomach wall from attack by its own acid.

Histamine

The signaling molecule that stimulates parietal cells in the gastric glands to secrete $HCl$.

Parietal Cells

Cells located in the gastric glands of the stomach that secrete $HCl$ when stimulated by histamine.

Proton-Pump Inhibitor (PPI)

A class of medication that directly blocks acid-producing proton pumps in parietal cells to decrease stomach acid production.

Esomeprazole (Nexium)

An example of a proton-pump inhibitor (PPI) that blocks proton pumps in parietal cells.

Helicobacter pylori ($H.\,pylori$)

A bacterium associated with peptic ulcers that resides deep in the gastric pits of the stomach lining.

Amoxicillin

An antibiotic used to treat $H.\,pylori$ infections in peptic ulcer therapy.

Peptic Ulcer Combination Therapy

A treatment regime combining a PPI and an antibiotic; the PPI raises stomach pH above $4$, preventing rapid destruction of the antibiotic so it can reach $H.\,pylori$ infection sites in the gastric pits.