Sara Moslehi
1 
, Sasan Zandi Esfahan
1 , Nabiha Midhat Ansari
2 , Hamid Nasri
3* 1 Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
2 Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
3 Nickan Research Institute, Isfahan, Iran
Abstract
Ankylosing spondylitis is a chronic inflammatory illness that initially involves the spine and sacroiliac joint. It rarely presents with kidney disease. Various biochemical and morphological alterations have been described, consisting of hematuria, proteinuria, and low GFR across immunoglobulin A nephropathy, renal amyloidosis, focal segmental glomerulosclerosis, and chronic interstitial nephritis with different frequencies among populations.