IgA nephropathy
which type of hypersensitivity is this associated with?

type Ⅲ hypersensitivity
immune complex (abnormal IgA1+IgG)

abnormal IgA1=galactose deficient IgA1 (cannot recognized by body)→cannot degenerate if it's too much→accumulation

IgG=antiglycan IgG antibody

renal