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Pharmacology
The penicillins all act by interfering with bacterial cell wall synthesis, by inhibiting cross-linking of the mucopeptides in the cell wall and as such are bacteriocidal. Bacteria are attacked when cells are dividing and so in theory antibiotics t
Physiology
Gastrin is the major hormone that stimulates the gastric phase of gastric secretion. It is released from G cells in the antral mucosa in response to food in the stomach, particularly proteins and amino acids, and to a lesser extent, to the presenc