Cyclic Adenosine Monophosphate Phosphodiesterase in Brain: Effect on Anxiety

Science  28 Apr 1972:
Vol. 176, Issue 4033, pp. 428-430
DOI: 10.1126/science.176.4033.428


Drugs that reduce anxiety may be mediated by cyclic adenosine monophosphate in the brain because (i) potent anxiety-reducing drugs are also potent inhibitors of brain phosphodiesterase activity; (ii) dibutyryl cyclic adenosine monophosphate has the ability to reduce anxiety; (iii) the methylxanthines show significant anxiety-reducing effects; (iv) theophylline and chlordiazepoxide produce additive anxiety-reducing activity; and (v) there is a significant correlation between the anxiety-reducing property of drugs and their ability to inhibit phosphodiesterase activity in the brain.