title: Effects of Therapy on Urine Neutrophil Gelatinase-Associated Lipocalin in Nondiabetic Glomerular Diseases with Proteinuria.
abstract: Urine neutrophil gelatinase-associated lipocalin (NGAL) is widely used as a biomarker for acute kidney injury. Cross-sectional studies have shown that NGAL may be elevated in glomerular diseases, but there is limited information on the value of NGAL in predicting treatment response or on the changes of NGAL levels after therapy. We prospectively evaluated the effects of therapy on NGAL in nondiabetic glomerular diseases. Urine NGAL was collected at biopsy and follow-up at 12 months. At baseline, NGAL in glomerular disease patients (n = 43) correlated with proteinuria, but not with glomerular filtration rate (GFR). After therapy with renin-angiotensin blockers and/or immune modulating agents, change of NGAL correlated with change of proteinuria, but not with change of GFR. NGAL at baseline was not different between patients in complete remission (CR) at follow-up compared to those not in remission (NR). Compared to baseline, NGAL at follow-up decreased in CR (n = 10), but not in NR. Change of NGAL was greater in CR than NR. In conclusion, the change of urine NGAL correlated with the change of proteinuria. Baseline NGAL was not a predictor of complete remission. Future studies will be necessary to determine the role of NGAL as a predictor of long term outcome in proteinuric glomerular diseases.
authors.affiliation: Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Amnuay
authors.identifier: 0000-0001-7122-1888
authors.initials: A
authors.lastname: Sirisopha
authors.affiliation: Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Somlak
authors.initials: S
authors.lastname: Vanavanan
authors.affiliation: Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Anchalee
authors.initials: A
authors.lastname: Chittamma
authors.affiliation: Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Bunyong
authors.initials: B
authors.lastname: Phakdeekitcharoen
authors.affiliation: Section for Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Ammarin
authors.identifier: 0000-0001-9991-386X
authors.initials: A
authors.lastname: Thakkinstian
authors.affiliation: Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Amornpan
authors.initials: A
authors.lastname: Lertrit
authors.affiliation: Graduate Program in Translational Medicine, Research Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Nuankanya
authors.initials: N
authors.lastname: Sathirapongsasuti
authors.affiliation: Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand.
authors.forename: Chagriya
authors.identifier: 0000-0001-6340-3534
authors.initials: C
authors.lastname: Kitiyakara