Gastrin
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- Gastrin
- Peptide hormone produced by G-cells in the stomach
- Stimulates gastric acid production by parietal cells in stomach
- Energy-intensive process requiring many mitochondria
- Stimulated by parasympathetic nervous response (acetylcholine release from the vagus nerve)
- Reaching a pH < 3 inhibits gastrin release
- Peptide hormone produced by G-cells in the stomach