Observation: 2, 12 h. Pancreatitis severity: ANP confirmed, kidney injury assessed; Microcirculation: renal perfusion (99mTc‐labeled frog RBCs); Hemostasis: TXA2/PGI2 ratio; Inflammation/oxidative stress: renal PLA2, neutrophil infiltration, BUN, Cr, histology. This evidence concerns the gene NPPA and pancreatitis.