The gut microbiota in IgA nephropathy and healthy controls .
IgA nephropathy (IgAN) is a major cause of primary glomerulonephritis characterized by mesangial deposits of galactose-deficient IgA1 (Gd-IgA1). The role of the gut microbiota on IgAN patients was recently investigated. However, whether gut microbial modifications of Gd-IgA1 play a role in IgAN remains unclear.