Study offers clues to clinical diagnosis of nephronophthisis in adults Nephronophthisis (NPH) is a kidney disease affecting mainly children. Now, for the first time, researchers at Tokyo Medical and Dental University (TMDU) have studied a number of adults with NPH and highlighted clinical, genetic and pathological characteristics that could help in confirming this challenging diagnosis. NPH is inherited in an autosomal recessive pattern and, though rare, is the commonest genetic cause of kidney failure in children. The name is derived from 'nephron', the functional filtration units of the kid...