STUDY OF SERUM NEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN CONCENTERATIONS AS A MARKER OF RENAL FUNCTION IN CHRONIC KIDNEY DISEASE PATIENTS

2021 ◽  
pp. 189-190
Author(s):  
G.G. Kaushik ◽  
Shubham Maheshwari ◽  
Ankita Sharma

Introduction: Serum lipocalin 2 serve as a marker for kidney function. Lipocalin 2 is found in both CKD and kidney injury and it rises in acute kidney injury (AKI) and in patients have faster decline in kidney function. Aims And Objectives: To nd out correlation and assess of serum Neutrophil gelatinase-associated lipocalin 2 (NGAL 2) in patients with stages 2 to 4 of Chronic Kidney disease. The aim of the study was NGAL could represent a novel, sensitive marker of kidney function in adult patients with CKD. Material And Methods: Study involved 120 patients divided in Case group (60 patients) attended medical/ urology OPD or admitted in medical/urology ward of CKD2 – CKD4 while control group – age and sex matched healthy individuals/ stage I CKD patients was taken as control. The plasma/ serum were used for serum urea, creatinine, Cystatin C and lipocalin 2 under all aseptic precaution on receiving consent. Result:The patients of CKD included in study were having glomerulonephritis (46.7%), pyelonephritis (21.7%), diabetic kidney disease (13.3%), polycystic kidney disease (1.7%) and other causes (16.7%). CKD patients demonstrated elevated serum NGAL 159.14 ± 48.73 ng/ml, together with a rise in urea 59.9 ± 17.6 mg/dL, serum creatinine 1.56 ± 0.97 mg/dL and Cystatin C 199 ± 113 ng/ml as compared to control have serum NGAL 76.31 ± 26.34 ng/ml, urea 22.3 ± 5.7 mg/dL, serum creatinine 0.75 ± 0.14 mg/dL and Cystatin C 76 ± 17 ng/ml (P value <0.05). Conclusion: Serum NGAL closely correlates with serum Cystatin C, creatinine, and eGFR, and serve as a potential early and sensitive marker of impaired kidney function/ kidney injury.

Nephrology ◽  
2014 ◽  
Vol 19 (3) ◽  
pp. 129-135 ◽  
Author(s):  
Shui-Juan Shen ◽  
Zuo-Xiang Hu ◽  
Qing-Hua Li ◽  
Shi-Min Wang ◽  
Chun-Jiao Song ◽  
...  

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Vijai Williams ◽  
Muralidharan Jayashree ◽  
Karthi Nallasamy ◽  
Devi Dayal ◽  
Amit Rawat ◽  
...  

Abstract Background Acute kidney injury (AKI) due to Diabetic Ketoacidosis (DKA) is rather common. Novel biomarkers to diagnose AKI are being increasingly used in different settings. The use of urinary Neutrophil Gelatinase-Associated Lipocalin (uNGAL) in predicting persistent AKI in pediatric DKA cases is still not thoroughly investigated. Methods This was a secondary analysis of Saline versus Plasma-Lyte in Ketoacidosis (SPinK) trial data; 66 children (> 1 month-12 years) with DKA, defined by the International Society for Pediatric and Adolescent Diabetes (ISPAD), were analyzed. Children with cerebral edema, chronic kidney disease and those who received pre-referral fluids and/or insulin were excluded. uNGAL and urine NGAL-creatinine ratio (uNCR) at 0 and 24 h were measured in all. Persistent AKI was defined as a composite outcome of continuance of AKI defined by the Kidney Disease Improving Global Outcomes (KDIGO) stage 2 or 3 beyond 48 h from AKI onset, progression of AKI from either KDIGO stage 0 or 1 to a worse stage, need of renal replacement therapy or death. Main outcomes Thirty-five (53%) children had AKI at admission; 32 (91.4%) resolved within 48 h. uNGAL was significantly higher in the AKI group at admission [79.8 ± 27.2 vs 54.6 ± 22.0, p = 0.0002] and at 24 h [61.4 ± 28.3 vs 20.2 ± 14.5, p = 0.0003]. Similar trend was observed with uNCR at admission [6.7 ± 3.7 vs 4.1 ± 2.6, p = 0.002] and at 24 h [6.3 ± 2.5 vs 1.2 ± 1.0, p = 0.01]. Furthermore, uNGAL at admission showed a moderate positive linear correlation with serum creatinine. Additionally, elevated uNGAL at 0 and 24 h correlated with corresponding KDIGO stages. Admission uNGAL >88 ng/ml and uNCR of >11.3 ng/mg had a sensitivity of 66% and 67%, specificity of 76% and 95%, and Area under the receiver operating characteristic curve (AUC) of 0.78 and 0.89 respectively for predicting persistent AKI at 48 h. Conclusions Majority of AKI resolved with fluid therapy. While uNGAL and uNCR both correlated with serum creatinine and AKI stages, serial uNCR was a better predictor of persistent AKI than uNGAL alone. However, feasibility of routine uNGAL measurement to predict persistent AKI in DKA needs further elucidation. Trial registration This was a secondary analysis of the data of SPinK trial [CTRI/2018/05/014042 (ctri.nic.in)].


2020 ◽  
Vol 50 (6) ◽  
pp. 1566-1572
Author(s):  
Didem TURGUT ◽  
Serhan Vahit PİŞKİNPAŞA ◽  
Ezgi COŞKUN YENİGÜN ◽  
Nihal AYDEMİR ◽  
Fatih DEDE

Background/aim: Neutrophil gelatinase-associated lipocalin (NGAL) is used previously to estimate the etiology, severity, and clinical outcomes of acute kidney injury (AKI). However, the role of urinary NGAL (uNGAL) in the postrenal setting is not clear. In our study, we aimed to discover the cut-off value of uNGAL that can be used in the differential diagnosis of underlying AKI etiologies.Materials and methods: In this prospective cross-sectional study, we examined 82 subjects in four groups: patients that had (1) postrenal AKI; (2) AKI other than postrenal etiologies; (3) stable chronic kidney disease; and (4) healthy subjects. A renal function assessment was carried out by measuring serum creatinine (sCr) and uNGAL at the time of diagnosis [0th min (T0)]. We followed the study group for three months. Results: At the time of diagnosis, sCr (T0) was highest in the postrenal AKI and AKI groups in contrast to stable chronic kidney disease patients and healthy subjects (P < 0.001), as expected. T0 median uNGAL was highest in the postrenal group (P < 0.001). Area under curve (AUC) of uNGAL to estimate postrenal AKI presence was 0.957 (95% CI, 0.897–1.000; P < 0.001). The cut-off point of uNGAL was 42.625 ng/mL for this estimation. Conclusion: Patients with AKI must be classified according to the underlying etiologies as soon as possible. uNGAL may be useful to estimate the etiologies, and whether the problem is acute or chronic in the course. In postrenal kidney problems, to plan the urgency of the urologic procedures, it is crucial.


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