Abstract
Severe acute pancreatitis (AP) is a disease associated with high mortality and characterized by overwhelming systemic inflammation. Older people have a prolonged hospital stay and worst prognosis, when affected by this disease. Our group hypothesized, thus, that the systemic inflammatory response in the elderly would promote more organ damage when compared to the young. We sought to investigate the effect of systemic inflammation on the gene expression of cytokines, chemokines, and growth factors in the hearts of older and younger rats in an animal model of AP. AP was induced in all rats by injection of 0.5 mL of 2.5% taurocholate. There were two healthy age-matched control groups. An array of 79 cytokines, chemokines, and growth factors was measured in samples of cardiac tissue taken from the AP rats after 10 h, and from control rats. Older healthy rats had significantly higher levels of interleukin-10 (IL-10) and CCL1 gene expression than younger ones ( P < 0.05), but all other measurements were similar among the study groups. This study indicates the systemic inflammation may show unique features for different organs in the body, but older animals with systemic inflammation are similar to the young regarding the cardiac inflammatory response.
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