Endotoxin levels of plasma and liver tissues in rats. Time course of endotoxin levels in the liver (circles) and plasma (squares) after BDL (closed symbols) or sham (open symbols) operation. Blood samples were collected at the time points indicated. Endotoxin was assayed using a pyrochrome LAL kit (Associates of Cape Cod, Falmouth, MA). Values are mean ± SD (n = 6 in each subgroup). *p < 0.05, **p < 0.005 (sham vs. BDL groups).