Serum anti-CRP antibodies differentiate etiology and predict relapse in acute tubulointerstitial nephritis

Acute tubulointerstitial nephritis (ATIN) is a common cause of acute kidney injury with various etiologies. It has been shown that autoimmune-related ATIN (AI-ATIN) has a higher recurrence rate and a greater likelihood of developing into chronic kidney disease compared with drug-induced ATIN, yet misdiagnosis at renal biopsy is not uncommon.Patients who were clinicopathologically diagnosed as ATIN from January 2006 to December 2015 in Peking...