This book reviews advances in understanding phosphodiesteraseswithin the central nervous system and their therapeuticapplications. A range of expert authors from both academia andindustry describe these, then focus on the areas of greatestscientific and medical interest to provide more detailed coverage.Therapeutic and drug discovery applications are covered fordiseases including Alzheimer's, Parkinson's, schizophrenia,erectile dysfunction, and spinal cord injuries. There is also achapter on drug discovery tools such as in vitro assays and X-raystructures for medicinal chemistry studies.