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Comparison of adiponectin concentration between pancreatic cancer and colorectal cancer
Jean Marc Phelip1, Serban Bageacu, Mathieu Baconnier
1University of Saint Etienne, Saint Etienne, France;
Introduction:
Adiponectin (ADP) is an adipocytokine secreted by the adipose tissue which can be a useful marker in oncogenesis. Preliminary studies suggest that adiponectin rates differ according to the type of cancer.
Aim Of Study:
Compare ADP plasma levels in pancreatic cancer (PC) and colorectal cancer (CRC) in a prospective monocentric study.
Patients And Methods:
The study included all the incident cases of PC gathered from a university hospital in France from January 2006 till September 2007. A control population of incident cases of colorectal cancer (CRC), matching on age, gender, and tumor staging was set in the same period. In addition to demographic data, the other parameters analyzed were: ADP rate, insulinoresistance (Homa-test), presence of a dysmetabolic syndrome, evolution of weight and data concerning the tumor (staging, tumor markers: ACE, CA19.9).
Results:
33 CRC and 53 PC were analyzed. Type 2 diabetes was found in 18.2% of the CRC cases and 39.6% of the PC (p = 0.037). The mean ADP level was significantly higher in PC versus CRC (20.9 microgram/l versus 15.9 microgram/l; p = 0.03). In multivariate analysis , after adjusting for gender, age, bilirubinemia and weigth loss, the variables independently associated with a high level of ADP (> 10 microG/L) were type 2 diabetes (OR = 0.05, p = 0.01), insulinoresistance (OR = 0.42, p = 0.05) and PC (OR = 12.03, p = 0.047).
Conclusion:
ADP concentration is higher in PC patients than in CRC patients. ADP concentration > 10 microgram/l was independently associated with pancreatic cancer. Our data confirm that adiponectin rates differ strongly according to the type of cancer.
