Elevated Concentration of Adenosine 3′:5′-cyclic Monophosphate in Intestinal Mucosa after Treatment with Cholera Toxin

A heat-labile factor in cell-free filtrate of a Vibrio cholerae culture induces a marked rise in the wet-weight concentration of adenosine 3′:5′-cyclic monophosphate (cyclic AMP) in the intestinal mucosa of the dog. The increase becomes appreciable 1-1.5 hr after intraluminal administration of the f...

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