title: NaCl induced ornithine decarboxylase and DNA synthesis in rat stomach mucosa.
abstract: Inductions of 200-fold increase in ornithine decarboxylase activity within 6 hours and 9-fold increase in DNA synthesis within 3 hours in rat stomach mucosa were observed after a single oral dose of saturated NaCl solution. NaCl caused dose-dependent induction of ornithine decarboxylase activity at doses of 0.25 to 1. 5g /kg body weight, and of DNA synthesis at doses of 0. 5g to 1. 5g /kg body weight. Administration of 1,3-diaminopropane one hour before NaCl inhibited the induction of ornithine decarboxylase activity in the stomach mucosa 3 and 6 hours after NaCl administration, but a single dose of 1,3-diaminopropane itself induced ornithine decarboxylase after 16 hours.
mesh_terms: D000818:Animals; D001345:Autoradiography; D004247:DNA / Q000096:biosynthesis*; D003959:Diamines / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004790:Enzyme Induction / Q000187:drug effects; D005753:Gastric Mucosa / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D008297:Male; D008769:Methylnitronitrosoguanidine / Q000494:pharmacology; D009955:Ornithine Decarboxylase / Q000378:metabolism*; D051381:Rats; D011916:Rats, Inbred F344; D012965:Sodium Chloride / Q000494:pharmacology*
chemical_list: D003959:Diamines; D008769:Methylnitronitrosoguanidine; D012965:Sodium Chloride; D004247:DNA; C009475:trimethylenediamine; D009955:Ornithine Decarboxylase