Abstract:
:Cysteamine (420 mg/kg s.c.) increased gastric acid secretion in rats 3-6 h post-injection; duodenal pH fell from 6.0 +/- 0.2 (S.E.M.) at 0 time to 2.2 +/- 0.3 at 12 h. A high (60-80%) incidence of duodenal ulcerations was observed 18 h after cysteamine injection. Intracisternal (i.c.) administration of bombesin (1 microgram) significantly inhibited both cysteamine-induced increases in gastric acid secretion and the development of duodenal ulcers. This effect of bombesin was dose-dependent and appears to be relatively specific since i.c. neurotensin (1 or 30 micrograms) was not cytoprotective. Peripheral cholinergic (muscarinic) blockade with atropine methylbromide (10 mg/kg i.p.) was as effective as i.c. bombesin (1 microgram) in inhibiting cysteamine-induced gastric hypersecretion and duodenal ulcers.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Hernandez DE,Adcock JW,Nemeroff CB,Prange AJ Jrdoi
10.1016/0014-2999(82)90203-5subject
Has Abstractpub_date
1982-10-22 00:00:00pages
205-9issue
3-4eissn
0014-2999issn
1879-0712pii
0014-2999(82)90203-5journal_volume
84pub_type
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