Abstract

A newly synthesized para-diphenylmethane derivative, N,N-diethyl-2-[4-(phenylmethyl)phenoxy]ethanamine-HCl (DPPE), binds with high affinity to the microsomal anti-estrogen binding site (AEBS). Recent data suggest that the DPPE/AEBS binding site is closely related to a novel low-affinity, non-H1, non-H2 histamine site which may be associated with a calcium channel. We previously have shown that DPPE markedly reduces stress-induced and ethanol-induced gastric ulcers and attenuates gastric acid secretion. We now show that DPPE also profoundly reduces cysteamine-induced duodenal ulcers in rats.

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