Sdudy on effect of tripterygium on plasma IL-18 content in patients with lupus nephritis Effect of Shexiang Baoxin Pill on time difference expression of IL-18 in border zone myocardium and ventricular arrhythmia of rats with acute myocardial infarction Characteristics of changes in urinary NGAL, KIM-1 and IL-18 in Phytolaccae Radix-induced renal injury in rats and significance of combined detection