Fig. 4.

Western blot of human peritoneal dialysis effluent (PDE) and metabolome analysis of human fecal samples. a Representative picture for detection of connective tissue growth factor (CTGF) with Western blot from lyophilized PDE of nine human donors. b Relative amount of substances (Y-axis) belonging to various classes of compounds and detected in at least 50% of the processed feces specimens extracted with the custom protocol (filled bars) and in at least one specimen as described in Application Note 35,035 of Biocrates AG (Innsbruck, Austria, hollow bars). b Courtesy of Gellert Balazs Karvaly