Mechanism of aggravation of mucosal injury by intravenous nicotine in rat stomach.


Endogenous prostaglandins and injury-induced hyperemia are important defense mechanisms in the gastric mucosa. In the rat stomach, we tested the hypotheses that an ulcer-promoting dose of intravenous nicotine 1) reduces ex vivo prostaglandin generation and 2) aggravates mucosal lesions by impairing injury-induced hyperemia. Anesthetized rats were given… (More)


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