
SAN FRANCISCO-The theory that serotonin might mediate both depression and fatigue in cancer patients was debunked by results of a community-based study involving more than 700 cancer patients. Reporting on behalf of the University of Rochester Cancer Center Community Clinical Oncology Program (CCOP), Gary R. Morrow, MD, said, "Our data suggest that it is unlikely that serotonin is involved as a final common pathway for fatigue and depression."