1. The elevated levels of urinary angiotensinogen are correlated with the severity of idiopathic membranous nephropathy
- Author
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Liyuan Tao, Yanhong Guo, Yue Wang, Ziyong Tang, Danxia Zheng, and Yimu Zheng
- Subjects
Nephrology ,medicine.medical_specialty ,Urinary system ,030232 urology & nephrology ,Serum albumin ,Renal function ,Urine ,030204 cardiovascular system & hematology ,lcsh:RC870-923 ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Urinary angiotensinogen ,Minimal change disease ,Disease severity ,Idiopathic membranous nephropathy ,Proteinuria ,biology ,business.industry ,medicine.disease ,lcsh:Diseases of the genitourinary system. Urology ,Idiopathic Membranous Nephropathy ,biology.protein ,medicine.symptom ,business ,Research Article - Abstract
Background Immunosuppressive treatment will predispose an idiopathic membranous nephropathy (iMN) patient to opportunistic infections. Disease severity is one of the main concerns for making the treatment decision. Urinary angiotensinogen (UAGT) level has been shown highly correlated with intrarenal renin-angiotensin system (RAS) activity and severity of chronic kidney diseases (CKD). We aimed to test the relationship between the UAGT level and the severity of iMN. Methods This cross-sectional study included a total of 48 biopsy-proven iMN patients, 46 minimal change disease (MCD) patients, and 44 healthy volunteers. The clinical and laboratory data and urine samples were collected from all subjects before the use of RAS inhibitors. We determined the UAGT levels with a method of enzyme-linked immunosorbent assay. Results The UAGT levels were not different between the iMN (277.05 ± 61.25, μg/g.Cr) and MCD patients (244.19 ± 40.24, μg/g.Cr), but both of them were significantly higher than those of healthy controls (6.85 ± 1.10, μg/g.Cr). UAGT levels were correlated negatively with serum albumin (r = − 0.393, p = 0.006) and estimated glomerular filtration rate (eGFR) (r = − 0.352, p = 0.014) and positively with 24-h proteinuria (r = 0.614, p
- Published
- 2018