C5AR1 and membranous glomerulonephritis: The membranous nephropathy group (Figure 22), focal and segmental glomerulosclerosis group (Figure 23), lupus nephritis group (Figure 24), IgA nephropathy group (Figure 25), control group (Figure 26), c-ANCA vasculitis group (Figure 27), and p-ANCA vasculitis group (Figure 28) all showed positive correlations between anti-C3aR antibody levels and anti-C5aR antibody levels.