Depression, Cytokines and Pancreatic Cancer

All subjects will be administered a battery of clinician rated and self report instruments including measures of depression, fatigue, and cognitive functioning. In addition, measures of pain, sleep, and anxiety will also be utilized to assess these important potential confounding variables. The SCIDIV will be used to ascertain the presence or absence of a current DSMIV diagnosis of Major Depressive Episode for all subjects. The interview should take approximately fortyfive minutes to complete. Patients will have their blood drawn once, in order to determine plasma levels of the cytokines IL1, IL6, TNFalpha, IL10, IL15 and IFNgamma.