Acute Pyelonephritis, also known as apn - [acute pyelonephritis], is related to interstitial nephritis and urolithiasis. An important gene associated with Acute Pyelonephritis is CRP (C-Reactive Protein), and among its related pathways/superpathways are Innate Immune System and Akt Signaling. The drugs Tigecycline and Colistin have been mentioned in the context of this disorder. Affiliated tissues include kidney and neutrophil, and related phenotypes are cardiovascular system and liver/biliary system