Central effects of adenosine analogs on stress-induced gastric ulcer formation.


Rats subjected to restraint stress developed gastric lesions that could be reduced by R-phenylisopropyladenosine (R-PIA) administered intracerebroventricularly. This protective effect was reversed by 8-sulfophenyltheophylline given centrally, and by peripherally administered 8-phenyltheophylline. These results suggest that central adenosine receptors… (More)


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