previous studies have shown that the concentrations of 3 ' , 5 ' cyclic adenosine monophosphate ( camp ) and 3 ' , 5 ' cyclic guanosine monophosphate ( cgmp ) in cerebrospinal fluid ( csf ) , brain , or both , are increased by melanotropic peptides and catechol amines , and by cholinergic agents .
C0086045
concentrations
C0006104
brain