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Lasota A, Wasilewska A, Rybi-Szumińska A. Current Status of Protein Biomarkers in Urolithiasis-A Review of the Recent Literature. J Clin Med 2023; 12:7135. [PMID: 38002747 PMCID: PMC10671847 DOI: 10.3390/jcm12227135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/27/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Urolithiasis is an increasingly common clinical problem worldwide. The formation of stones is a combination of metabolic status, environmental factors, family history and many other aspects. It is important to find new ways to quickly detect and assess urolithiasis because it causes sudden, severe pain and often comes back. One way to do this is by exploring new biomarkers. Current advances in proteomic studies provide a great opportunity for breakthroughs in this field. This study focuses on protein biomarkers and their connection to kidney damage and inflammation during urolithiasis.
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Affiliation(s)
- Aleksandra Lasota
- Department of Pediatrics and Nephrology, Medical University of Bialystok, Waszyngtona 17, 15-297 Bialystok, Poland; (A.W.); (A.R.-S.)
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Noureldin YA, Abdel Halim WA, Elnahif E, El Shaer A, Shaher H, Abdel Fattah AAE, Hashem A, El-Dakhakhny AS, Zahran AA, El Hamshary SA. The effect of piezoelectric shockwave lithotripsy with 2- and 8-mm focus sizes on stone disintegration and renal injury. BJU Int 2023; 132:404-410. [PMID: 37216189 DOI: 10.1111/bju.16083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
OBJECTIVES To compare the efficacy and safety of shockwave lithotripsy (SWL) using a narrow focus or wide focus for renal stones. PATIENTS AND METHODS A double-blind randomised trial included adult patients with a solitary radio-opaque renal pelvic stone of 1-2 cm. Patients were randomised into two groups: narrow-focus (2 mm) SWL and wide-focus (8 mm) SWL. The stone-free rate (SFR) and presence of complications such as haematuria, fever, pain, and peri-renal haematoma were evaluated. Pre- and postoperative urinary markers (neutrophil gelatinase-associated lipocalin [NGAL] and kidney injury molecule 1 [KIM-1]) concentrations were compared to assess renal injury. RESULTS A total of 135 patients were recruited for this study. The SFR after the first SWL session was 79.2% and 69.1% in narrow- and wide-focus groups, respectively. There was a comparable rise in the median 2-h NGAL concentration in both groups (P = 0.62). However, the rise in the median (interquartile range [IQR]) 2-h KIM-1 concentration was significantly higher in the narrow-focus group at 4.9 (4.6, 5.8) ng/mL compared with the wide-focus group at 4.4 (3.2, 5.7) ng/mL (P = 0.02). Nevertheless, the 3-day NGAL and KIM-1 urinary marker concentrations were significantly improved (P = 0.263 and P = 0.963, respectively). The overall SFR after three sessions was 86.6% and 86.8% in the narrow- and wide-focus groups, respectively (P = 0.77). Both groups were comparable for complications, apart from the median pain score and the percentage of high-grade haematuria, which were significantly higher in the narrow-focus group (P < 0.001 and P = 0.03, respectively). CONCLUSION Narrow- and wide-focus SWL were associated with comparable outcomes and re-treatment rates. However, narrow-focus SWL was associated with significantly higher morbidity in terms of pain and haematuria.
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Affiliation(s)
- Yasser A Noureldin
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
- Division of Clinical Sciences, Northern Ontario School of Medicine, Thunder Bay, ON, Canada
| | - Walid A Abdel Halim
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ezzat Elnahif
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Alaa El Shaer
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Hussein Shaher
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
| | | | - Abdelwahab Hashem
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Amr S El-Dakhakhny
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ahmed A Zahran
- Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt
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Biomarkers in Urolithiasis. Urol Clin North Am 2023; 50:19-29. [DOI: 10.1016/j.ucl.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tawfick A, Matboli M, Shamloul S, Agwa SHA, Saad M, Shaker H, Selim MMY, Salim MS, Radwan A, Shorbagy AA, Mousa W. Predictive urinary RNA biomarkers of kidney injury after extracorporeal shock wave lithotripsy. World J Urol 2022; 40:1561-1567. [PMID: 35428927 PMCID: PMC9166822 DOI: 10.1007/s00345-022-03996-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/18/2022] [Indexed: 01/18/2023] Open
Abstract
Background Extracorporeal shock wave lithotripsy (ESWL) is considered one of the best choices for the treatment of various kinds of urinary tract calculi, although it might cause acute kidney injury. Objective To measure the urinary long non-coding RNA-messenger RNA (LncRNA-mRNA) panel before and after ESWL to evaluate post-ESWL renal injury in a reliable and non-invasive method. Patients and methods The study included 60 patients with renal stones treated with ESWL and 30 healthy volunteers. Voided urine samples were obtained before, 2 h, and 1 day after ESWL. We measured the urinary level of LncRNA (SBF2-AS1, FENDRR-19) and mRNA (GBP1, NLRP3) by real-time qPCR and compared the results with serum creatinine and eGFR. Results LncRNA (SBF2-AS1, FENDRR-19) and mRNA (GBP1, NLRP3) levels were higher in patients with renal stones when compared with healthy volunteers. They showed a statistically significant increase in the level of LncRNA-mRNA panel in baseline and after ESWL treatment. Conclusion LncRNA (SBF2-AS1, FENDRR-19) and mRNA (GBP1, NLRP3) levels were significantly elevated following ESWL treatment, highlighting the usefulness of urinary biomarkers in identifying patients at higher risk of developing renal injury after ESWL treatment. Supplementary Information The online version contains supplementary material available at 10.1007/s00345-022-03996-3.
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Affiliation(s)
- Ahmed Tawfick
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | - Marwa Matboli
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt.
| | - Sara Shamloul
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | - Sara H A Agwa
- Clinical Pathology and Molecular Genomics Unit, Medical Ain Shams Research Institute, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Maha Saad
- Medical Biochemistry and Molecular Biology Department, Modern University for Technology and Information, Cairo, Egypt
| | - Hassan Shaker
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | | | - Mohamed S Salim
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | - A Radwan
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | - A A Shorbagy
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt
| | - Waleed Mousa
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, 11381, Egypt.
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Brewin A, Sriprasad S, Somani BK. Role of urinary biomarkers for diagnosis and prognosis of kidney stone disease. Curr Opin Urol 2021; 31:71-79. [PMID: 33394608 DOI: 10.1097/mou.0000000000000856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Urinary biomarkers such as neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1) and N-acetyl-B-D-glucosamindase (NAG) are recognised as being useful for the detection of kidney tubular damage but their role in the diagnosis and prognosis of kidney stone disease (KSD) is still unknown. To clarify this, we performed a systematic review of literature in accordance with Cochrane methodology from inception to September 2020. RECENT FINDINGS Twelve studies were included and a variety of urinary biomarkers (KIM-1, NGAL, NAG, proteins/peptides, cytokines, CA19-9) were measured in a total of 998 patients with KSD. Despite some contradicting studies, majority of the biomarkers studied showed a significant rise in patients with KSD compared to healthy controls, with levels decreasing after their surgical management, noticed as early as 4 h postprocedure. There was limited evidence of correlation with stone burden and elevated levels were also associated with hydronephrosis and superimposed infections. SUMMARY Urinary biomarkers could be used in the diagnosis, prognosis and stone-treatment response in patients with KSD. However, as novel indicators, they may not be reliable as the sole diagnostic or prognostic tool for KSD as they are readily confounded by other causes of kidney injury. Further studies are needed to determine their ability to separate KSD from other causes of obstructive uropathy and acute renal injury.
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Affiliation(s)
- Anna Brewin
- Clinical Fellow in Urology, University Hospital Southampton NHS Trust, Southampton
| | - Sheshadri Sriprasad
- Institute of Medical Sciences, Canterbury Christ Church University, Kent, UK
| | - Bhaskar K Somani
- Clinical Fellow in Urology, University Hospital Southampton NHS Trust, Southampton
- KMC Manipal, Manipal Academy of Higher Education (MAHE), Karnataka, India
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Zheng Y, Guan H, Zhou X, Xu Y, Fu C, Xiao J, Ye Z. The association of renal tubular inflammatory and injury markers with uric acid excretion in chronic kidney disease patients. Int Urol Nephrol 2020; 52:923-932. [PMID: 32232720 DOI: 10.1007/s11255-020-02447-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/16/2020] [Indexed: 01/05/2023]
Abstract
AIM To investigate the correlation of renal tubular inflammatory and injury markers with renal uric acid excretion in chronic kidney disease (CKD) patients. METHODS Seventy-three patients with CKD were enrolled. Fasting blood and morning urine sample were collected for routine laboratory measurements. At the same time, 24 h of urine was collected for urine biochemistry analyses, and 10 ml was extracted from the 24-h urine sample to further detect renal tubular inflammatory and injury markers, including interleukin-18 (IL-18), interleukin 1β (IL-1β), neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1). The patients were divided into three tertile groups according to their 24-h urinary uric acid (24-h UUA) levels (UUA1: 24-h UUA ≤ 393.12 mg; UUA2: 393.12 < 24-h UUA ≤ 515.76 mg; UUA3: 24-h UUA > 515.76 mg). The general clinical and biochemical indexes were compared. Multivariable linear regression models were used to test the association of IL-18/Urinary creatinine concentration (IL-18/CR), IL-1β/CR, NGAL/CR and KIM-1/CR with renal uric acid excretion indicators. RESULTS All of tested renal tubular inflammation- and injury-related urinary markers were negatively associated with 24-h UUA and UEUA, and the negative correlation still persisted after adjusting for multiple influencing factors including urinary protein and eGFR. Further group analyses showed that these makers were significantly higher in the UUA1 than in the UUA3 group. CONCLUSIONS Our findings suggest that markers of urinary interstitial inflammation and injury in CKD patients are significantly correlated with 24-h UUA and Urinary excretion of uric acid (UEUA), and those with high 24-h UUA have lower levels of these markers. Renal uric acid excretion may also reflect the inflammation and injury of renal tubules under certain conditions.
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Affiliation(s)
- Yuqi Zheng
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Haochen Guan
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Xun Zhou
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Ying Xu
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Chensheng Fu
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Jing Xiao
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China. .,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.
| | - Zhibin Ye
- Department of Nephrology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China. .,Shanghai Key Laboratory of Clinical Geriatric Medicine, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China.
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Ertaş K, Temiz MZ, Çolakerol A, Küçük SH, Şahan A, Yürük E. Effects of flexible ureteroscopy on kidney: A prospective clinical trial. Turk J Urol 2020; 46:tud.2020.19195. [PMID: 32449673 PMCID: PMC7360167 DOI: 10.5152/tud.2020.19195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/04/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the effects of flexible ureteroscopy (F-URS) on the operated side of a kidney by assessing the renal damage markers, urine neutrophil gelatinase-related lipocalin (NGAL) and serum cystatin-C (Cys-C), and overall kidney function with the measurements of standard serum creatinine and urine albumin and protein levels. MATERIAL AND METHODS A total of 30 patients who underwent F-URS for treatment of upper urinary stone disease were prospectively evaluated. Preoperative serum urea, creatinine, and Cys-C levels were noted. Levels of urine albumin, protein, creatinine, and NGAL in spot urine samples from the operated side of a kidney obtained through the access sheath preoperatively and through the ureteral catheter 1 and 24 hours postoperatively were also measured. Preoperative and postoperative parameter levels were statistically compared. RESULTS The patients' mean age was 46.6±15.9 years. The mean operative and fluoroscopy times were 90.67±32.5 and 3.15±1.43 minutes, respectively. The urine creatinine, albumin, protein, albumin/creatinine, and protein/creatinine levels were similar in preoperative and postoperative periods. Postoperative serum urea, creatinine, and Cys-C levels and urine NGAL and NGAL/creatinine levels were not also found with remarkable changes from the baseline levels. CONCLUSION F-URS is a safe therapeutic intervention in the treatment of urolithiasis, especially regarding renal damage, and functional outcomes.
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Affiliation(s)
- Kasım Ertaş
- Department of Urology, Bağcılar Training and Research Hospital, İstanbul, Turkey
| | - Mustafa Zafer Temiz
- Department of Urology, Bağcılar Training and Research Hospital, İstanbul, Turkey
| | - Aykut Çolakerol
- Department of Urology, Bağcılar Training and Research Hospital, İstanbul, Turkey
| | - Suat Hayri Küçük
- Department of Biochemistry, Bağcılar Training and Research Hospital, İstanbul, Turkey
| | - Ahmet Şahan
- Department of Urology, Van Training and Research Hospital, Van, Turkey
| | - Emrah Yürük
- Department of Urology, Bağcılar Training and Research Hospital, İstanbul, Turkey
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Fiorentino M, Castellano G, Kellum JA. Differences in acute kidney injury ascertainment for clinical and preclinical studies. Nephrol Dial Transplant 2018; 32:1789-1805. [PMID: 28371878 DOI: 10.1093/ndt/gfx002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 01/03/2017] [Indexed: 12/25/2022] Open
Abstract
Background Acute kidney injury (AKI) is a common clinical condition directly associated with adverse outcomes. Several AKI biomarkers have been discovered, but their use in clinical and preclinical studies has not been well examined. This study aims to investigate the differences between clinical and preclinical studies on AKI biomarkers. Methods We performed a systematic review of clinical and preclinical interventional studies that considered AKI biomarkers in enrollment criteria and/or outcome assessment and described the main differences according to their setting, the inclusion of biomarkers in the definition of AKI and the use of biomarkers as primary or secondary end points. Results In the 151 included studies (76 clinical, 75 preclinical), clinical studies have prevalently focused on cardiac surgery (38.1%) and contrast-associated AKI (17.1%), while the majority of preclinical studies have focused on ether ischemia-reperfusion injury or drug-induced AKI (42.6% each). A total of 57.8% of clinical studies defined AKI using the standard criteria and only 19.7% of these studies used AKI biomarkers in the definition of renal injury. Conversely, the majority of preclinical studies defined AKI according to the increase in serum creatinine and blood urea nitrogen, and 32% included biomarkers in that definition. The percentage of both clinical and preclinical studies with biomarkers as a primary end point has not significantly increased in the last 10 years; however, preclinical studies are more likely to use AKI biomarkers as a primary end point compared with clinical studies [odds ratio 2.31 (95% confidence interval 1.17-4.59); P = 0.016]. Conclusion Differences between clinical and preclinical studies are evident and may affect the translation of preclinical findings in the clinical setting.
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Affiliation(s)
- Marco Fiorentino
- Department of Critical Care Medicine, Center for Critical Care Nephrology, CRISMA (Clinical Research, Investigation, and Systems Modeling of Acute Illness) Center, University of Pittsburgh School of Medicine, Pittsburgh, USA.,Department of Emergency and Organ Transplantation, Nephrology, Dialysis and Transplantation Unit, University of Bari, Bari, Italy
| | - Giuseppe Castellano
- Department of Emergency and Organ Transplantation, Nephrology, Dialysis and Transplantation Unit, University of Bari, Bari, Italy
| | - John A Kellum
- Department of Critical Care Medicine, Center for Critical Care Nephrology, CRISMA (Clinical Research, Investigation, and Systems Modeling of Acute Illness) Center, University of Pittsburgh School of Medicine, Pittsburgh, USA
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Ng CF, Luke S, Yee CH, Chu WCW, Wong KT, Yuen JWM. A Prospective Randomized Study Comparing the Effect of Different Kidney Protection Treatment Protocols on Acute Renal Injury After Extracorporeal Shockwave Lithotripsy. J Endourol 2017; 31:57-65. [PMID: 27762628 DOI: 10.1089/end.2016.0653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES To perform a prospective study to evaluate the renal protective effects of ramping protocol and pause protocol for extracorporeal shockwave lithotripsy (SWL) in human subjects. PATIENTS AND METHODS Three hundred twenty patients with solitary renal stone <15 mm were randomized to receive one of four protocols: (1) 80% power from beginning until the end of treatment; (2) the first 100 shockwaves (SWs) at 40% power, and then 80% power until the end of treatment; (3) the first 100 shocks at 40% power, followed by a 3-minute pause, and then further SWs at 80% power until the end of treatment; and (4) the first 100 shocks at 80% power, followed by a 3-minute pause, and then further SWs at 80% power until the end of treatment. The primary endpoint was the incidence of renal hematoma assessed by imaging on day 2. Spot urine samples were also collected before and after treatment for acute renal injury marker measurement. RESULTS The baseline information and treatment parameters of the four groups were comparable. The overall incidence of hematoma formation was 7.69% (24 patients). The number of patients developing hematoma in the four groups was 8 (10.26%), 7 (8.97%), 6 (7.59%), and 3 (3.90%), respectively, and the incidence of hematoma among the four groups was not significantly different. Only patient's body mass index and mean blood pressure during treatment were predictors for hematoma formation. There was also no significant difference in changes in the levels of all markers and complication and hospitalization rates between the four groups. CONCLUSION Comprehensive assessment of clinical parameters, imaging results, and urinary markers showed no obvious improvement in post-SWL renal insult by either protocol.
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Affiliation(s)
- Chi-Fai Ng
- 1 SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin, Hong Kong
| | - Sylvia Luke
- 1 SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin, Hong Kong
| | - Chi-Hang Yee
- 1 SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin, Hong Kong
| | - Winnie C W Chu
- 2 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong , Shatin, Hong Kong
| | - Ka-Tak Wong
- 2 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong , Shatin, Hong Kong
| | - John W M Yuen
- 3 Department of Health Technology and Informatics, Hong Kong Polytechnic University , Hong Kong
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Olvera-Posada D, Dayarathna T, Dion M, Alenezi H, Sener A, Denstedt JD, Pautler SE, Razvi H. KIM-1 Is a Potential Urinary Biomarker of Obstruction: Results from a Prospective Cohort Study. J Endourol 2016; 31:111-118. [PMID: 27852120 DOI: 10.1089/end.2016.0215] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Partial or complete obstruction of the urinary tract is a common and challenging urological condition that may occur in patients of any age. Serum creatinine is the most commonly used method to evaluate global renal function, although it has low sensitivity for early changes in the glomerular filtration rate or unilateral renal pathology. Hence, finding another measurable parameter that reflects the adaptation of the renal physiology to these circumstances is important. Several recent studies have assessed the use of new biomarkers of acute kidney injury (AKI), but the information among patients with stone disease and those with obstructive uropathy is limited. MATERIAL AND METHODS A prospective cohort study was conducted to determine the urinary levels of kidney injury molecule-1 (KIM-1), Total and Monomeric neutrophil gelatinase-associated lipocalin (NGAL) in patients with hydronephrosis secondary to renal stone disease, congenital ureteropelvic junction obstruction or ureteral stricture. Comparison between patients with hydronephrosis and no hydronephrosis was carried out along with correlation analysis to detect factors associated with biomarker expression. RESULTS Urinary levels of KIM-1 significantly decreased after hydronephrosis treatment in patients with unilateral obstruction (1.19 ng/mL vs 0.76 ng/mL creatinine, p = 0.002), additionally KIM-1 was significantly higher in patients with hydronephrosis compared to stone disease patients without radiological evidence of obstruction (1.19 vs 0.64, p = 0.006). Total and Monomeric NGAL showed a moderate correlation with the presence of leukocyturia. We found that a KIM-1 value of 0.735 ng/mg creatinine had a sensitivity of 75% and specificity of 67% to predict the presence of hydronephrosis in preoperative studies (95% CI 0.58-0.87, p = 0.006). CONCLUSION Our results show that KIM-1 is a promising biomarker of subclinical AKI associated with hydronephrosis in urological patients. NGAL values were influenced by the presence of leukocyturia, limiting its usefulness in this population.
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Affiliation(s)
- Daniel Olvera-Posada
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada .,2 TEC Salud, Escuela Nacional de Medicina, Instituto de Cirugia, Monterrey, México
| | - Thamara Dayarathna
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Marie Dion
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Husain Alenezi
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Alp Sener
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - John D Denstedt
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Stephen E Pautler
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
| | - Hassan Razvi
- 1 Division of Urology, Department of Surgery, Schulich School of Medicine and Dentistry, The University of Western Ontario , London, Canada
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Waikar SS, Sabbisetti V, Ärnlöv J, Carlsson AC, Coresh J, Feldman HI, Foster MC, Fufaa GD, Helmersson-Karlqvist J, Hsu CY, Kimmel PL, Larsson A, Liu Y, Lind L, Liu KD, Mifflin TE, Nelson RG, Risérus U, Vasan RS, Xie D, Zhang X, Bonventre JV. Relationship of proximal tubular injury to chronic kidney disease as assessed by urinary kidney injury molecule-1 in five cohort studies. Nephrol Dial Transplant 2016; 31:1460-70. [PMID: 27270293 DOI: 10.1093/ndt/gfw203] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/12/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The primary biomarkers used to define CKD are serum creatinine and albuminuria. These biomarkers have directed focus on the filtration and barrier functions of the kidney glomerulus even though albuminuria results from tubule dysfunction as well. Given that proximal tubules make up ∼90% of kidney cortical mass, we evaluated whether a sensitive and specific marker of proximal tubule injury, urinary kidney injury molecule-1 (KIM-1), is elevated in individuals with CKD or with risk factors for CKD. METHODS We measured urinary KIM-1 in participants of five cohort studies from the USA and Sweden. Participants had a wide range of kidney function and were racially and ethnically diverse. Multivariable linear regression models were used to test the association of urinary KIM-1 with demographic, clinical and laboratory values. RESULTS In pooled, multivariable-adjusted analyses, log-transformed, creatinine-normalized urinary KIM-1 levels were higher in those with lower eGFR {β = -0.03 per 10 mL/min/1.73 m(2) [95% confidence interval (CI) -0.05 to -0.02]} and greater albuminuria [β = 0.16 per unit of log albumin:creatinine ratio (95% CI 0.15-0.17)]. Urinary KIM-1 levels were higher in current smokers, lower in blacks than nonblacks and lower in users versus nonusers of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers. CONCLUSION Proximal tubule injury appears to be an integral and measurable element of multiple stages of CKD.
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Affiliation(s)
- Sushrut S Waikar
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Johan Ärnlöv
- Uppsala University, Uppsala, Sweden Dalarna University, Falun, Sweden
| | - Axel C Carlsson
- Uppsala University, Uppsala, Sweden Karolinska Institutet, Huddinge, Sweden
| | | | - Harold I Feldman
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | | | - Gudeta D Fufaa
- National Institute of Diabetes and Digestive and Kidney Diseases
| | | | - Chi-Yuan Hsu
- University of California, San Francisco, San Francisco, CA, USA Kaiser Permanente Northern California, Oakland, CA, USA
| | - Paul L Kimmel
- National Institute of Diabetes and Digestive and Kidney Diseases
| | | | - Yumin Liu
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Kathleen D Liu
- University of California, San Francisco, San Francisco, CA, USA
| | - Theodore E Mifflin
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Robert G Nelson
- National Institute of Diabetes and Digestive and Kidney Diseases
| | | | | | - Dawei Xie
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Xiaoming Zhang
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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Zwiers AJM, de Wildt SN, de Rijke YB, Willemsen SP, Abdullahi NS, Tibboel D, Cransberg K. Reference intervals for renal injury biomarkers neutrophil gelatinase-associated lipocalin and kidney injury molecule-1 in young infants. Clin Chem Lab Med 2016; 53:1279-89. [PMID: 25720126 DOI: 10.1515/cclm-2014-1020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 12/19/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND Reliable reference intervals for two novel urinary biomarkers of renal injury, neutrophil gelatinase-associated lipocalin (uNGAL) and kidney injury molecule-1 (uKIM-1) are lacking for infants. Therefore, the aim of our study was to establish reference intervals for urinary NGAL and KIM-1 absolute concentrations as well as normalized to urinary creatinine in young infants categorized in small age intervals. METHODS From June 2010 to March 2014, serum and urine samples of 106 basically healthy infants (born between 37 and 42 weeks of gestation) aged 1 day to 1 year were collected. Blood samples were assayed for serum creatinine levels to confirm a healthy renal status. Urine samples were assayed for creatinine, uNGAL (ng/mL) and uKIM-1 (ng/mL). RESULTS Two thirds of the study cohort were boys. uNGAL concentrations declined with increasing age (likelihood ratio test, p=0.001). Also, uNGAL concentrations were higher in girls (50th centile uNGAL was 27.1 ng/mL) than boys (50th centile uNGAL was 14.3 ng/mL) (two tailed Wald test, p<0.001) NGAL concentrations were not related to ethnicity. uKIM-1 concentrations were extremely low in almost all 106 subjects [median uKIM-1 was 0.08 (IQR 0.08-0.08) ng/mL] and not related with age, gender or ethnicity (all p>0.05). CONCLUSIONS Our data uniquely provide uNGAL and uKIM-1 reference intervals for the first year of life. Notably, only uNGAL levels decreased with increasing age and were higher in girls. These reference intervals enable future studies to evaluate the performance of both biomarkers in detecting early kidney tubular injury, particularly in the setting of critical care.
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Koo KC, Hong JH, Lee HS, Jeh SU, Choi YD, Rha KH, Ham WS. Accuracy of Urinary Neutrophil Gelatinase-Associated Lipocalin in Quantifying Acute Kidney Injury after Partial Nephrectomy in Patients with Normal Contralateral Kidney. PLoS One 2015. [PMID: 26200468 PMCID: PMC4511768 DOI: 10.1371/journal.pone.0133675] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND To evaluate the efficacy of urinary neutrophil gelatinase-associated lipocalin (uNGAL) for predicting the degree of acute kidney injury (AKI) in patients following partial nephrectomy (PN). METHODS This prospective study included 176 patients who underwent open or laparoscopic PN for solid renal tumors between June 2013 and May 2014. Urine samples were collected preoperatively and at 3, 24, and 48 h after renal pedicle clamp removal. Changes in uNGAL levels were analyzed for all patients and between subgroups that were dichotomized based on preoperative eGFR values of <60 and ≥60 mL/min/1.73m2, open and laparoscopic surgery, and according to the onset of AKI. Linear mixed models were used to investigate preoperative and perioperative features associated with postoperative uNGAL and eGFR changes at 6 months postoperatively. RESULTS Among 146 patients included in the final analysis, 10 (6.8%) patients had preoperative eGFR <60 mL/min/1.73m2. In the overall group, uNGAL levels increased following PN. However, all subgroups demonstrated comparable changes in uNGAL levels over time. Multivariate analyses failed to reveal any correctable clinical features associated with postoperative uNGAL changes, whereas preoperative serum creatinine levels and the onset of AKI correlated with eGFR at 6 months postoperatively. CONCLUSIONS uNGAL levels may increase following PN. However, it does not appear to be a useful marker for quantifying the degree of AKI or predicting postoperative renal function in patients with normal contralateral kidney and relatively good preoperative renal function. Further analysis is necessary to assess the usefulness of uNGAL in patients with poor preoperative renal function.
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Affiliation(s)
- Kyo Chul Koo
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Hwa Hong
- Biostatistics Collaboration Unit, Department of Research Affairs, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hye Sun Lee
- Biostatistics Collaboration Unit, Department of Research Affairs, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seong Uk Jeh
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Deuk Choi
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Koon Ho Rha
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won Sik Ham
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- * E-mail:
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14
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Schmid M, Dalela D, Tahbaz R, Langetepe J, Randazzo M, Dahlem R, Fisch M, Trinh QD, Chun FKH. Novel biomarkers of acute kidney injury: Evaluation and evidence in urologic surgery. World J Nephrol 2015; 4:160-168. [PMID: 25949930 PMCID: PMC4419126 DOI: 10.5527/wjn.v4.i2.160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 12/30/2014] [Accepted: 01/19/2015] [Indexed: 02/06/2023] Open
Abstract
Patients undergoing urologic surgery are at risk of acute kidney injury (AKI) and consequently long-term deterioration in renal function. AKI is further associated with significantly higher odds of perioperative complications, prolonged hospital stay, higher mortality and costs. Therefore, better awareness and detection of AKI, as well as identification of AKI determinants in the urological surgery setting is warranted to pre-empt and mitigate further deterioration of renal function in patients at special risk. New consensus criteria provide precise definitions of diagnosis and description of the severity of AKI. However, they rely on serum creatinine (SCr), which is known to be an inaccurate marker of early changes in renal function. Therefore, several new urinary and serum biomarkers promise to address the gap associated with the use of SCr. Novel biomarkers may complement SCr measurement or most likely improve the diagnostic accuracy of AKI when used in combinations. However, novel biomarkers have to prove their clinical applicability, accuracy, and cost effectiveness prior to implementation into clinical practice. Most preferably, novel biomarkers should help to positively improve a patient’s long-term renal functional outcomes. The purpose of this review is to discuss currently available biomarkers and to review their clinical evidence within urologic surgery settings.
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Park J, Kim HW, Hong S, Yang HJ, Chung H. Comparison of treatment outcomes according to output voltage during shockwave lithotripsy for ureteral calculi: a prospective randomized multicenter study. World J Urol 2014; 33:609-15. [PMID: 25387876 DOI: 10.1007/s00345-014-1438-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 11/01/2014] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To investigate the effect of fixed versus escalating voltage during SWL on treatment outcomes in patients with ureteral calculi (UC). METHODS A prospective, randomized, multicenter trial was conducted on 120 patients who were diagnosed with a single radiopaque UC. The patients were randomized into group C (n = 60, constant 13 kV, 3,000 shock wave, 2 Hz) or group E (n = 60, 11.4-12.0-13 kV per 1,000 shock waves, 2 Hz). They were evaluated by plain abdominal radiography and urinalysis at 1 week after a single session of SWL, and repeat SWL was performed if needed. The primary endpoint was stone-free rate at 1 week (SFR1) after SWL. Secondary endpoints were post-SWL visual pain score (VPS), oral analgesic requirements during 1 week, and cumulative SFRs after the second and third sessions of SWL. RESULTS Groups C and E were well balanced in terms of baseline patients and stone characteristics, including pre-SWL VPS, stone location, and stone size (6.24 ± 1.92 vs. 6.30 ± 2.13 mm). SFR1s were not significantly different between groups C and E (60.0 vs. 68.3%, p = 0.447). Analyses stratified by stone size (<6 vs. ≥6 mm) showed no difference in SFR1 (p = 0.148 vs. 0.808). In the analyses stratified by stone location, group E tended to be more effective in distal UC (81.0 vs. 50.0%, p = 0.052), whereas no difference was seen in proximal UC (p = 0.487). Secondary endpoints were also similar between the two groups. CONCLUSIONS Our results suggest that voltage escalation during SWL in UC may not provide superior stone fragmentation compared to fixed voltage.
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Affiliation(s)
- Jinsung Park
- Department of Urology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Repubic of Korea
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16
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Sninsky BC, Jhagroo RA, Astor BC, Nakada SY. Do multiple ureteroscopies alter long-term renal function? A study using estimated glomerular filtration rate. J Endourol 2014; 28:1295-8. [PMID: 24915495 DOI: 10.1089/end.2014.0322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Although considered standard of care for symptomatic urolithiasis, few data are available that evaluate the effects of multiple ureteroscopies (URS) with laser lithotripsies on long-term renal function. We investigated this relationship in a population with preexisting mild to moderate kidney disease. Previous studies have been limited by estimates of glomerular filtration rate (eGFR) calculated from creatinine level during acute stone obstruction, and inclusion of patients with a history of other stone procedures, such as shockwave lithotripsy (SWL) or percutaneous nephrolithotomy (PCNL). METHODS Charts were reviewed for patients with a baseline eGFR below 90 mL/min/1.73 m(2) who underwent at least two URS for nephrolithiasis at our institution from 2004 to 2012. Patients undergoing SWL or PCNL at any point in their history were excluded. A total of 26 patients, with a mean of 2.3±0.6 URS procedures, were included. The eGFR was recorded at baseline before acute stone presentation and surgery, and at the last recorded follow-up visit. Stone location, total stone burden, and comorbidities were also recorded. RESULTS The mean eGFR changed from 68.0±13.3 to 75.4±23.0 mL/min/1.73m(2) (mean increase of 10.1±25.0%; mean annual increase of 3.8±15.3%) over a mean follow-up period of 28.1 months (range 5-75 mos). There was no significant difference in eGFR change between patients with stones treated in the kidney alone vs the ureter and kidney combined (12.1% vs 8.3% mean increase; P=0.74). Age, presence of diabetes mellitus or hypertension, baseline creatinine level, total stone burden, and number of URS performed were not significantly associated with change in eGFR. CONCLUSIONS Using eGFR measured before acute stone presentation, our results suggest that multiple ureteroscopies for stones are not detrimental to long-term renal function, even in patients with preexisting stage 2-3 chronic kidney disease.
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Affiliation(s)
- Brian C Sninsky
- 1 Department of Urology, University of Wisconsin School of Medicine and Public Health , Madison, Wisconsin
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Abstract
PURPOSE OF REVIEW Nephrolithiasis is a common systemic disease associated with both acute kidney injury (AKI) and chronic kidney disease (CKD). The purpose of this review is to discuss recent publications regarding nephrolithiasis-associated kidney damage, with an emphasis on AKI. RECENT FINDINGS Nephrolithiasis is not a common cause of adult AKI (1-2% of cases), although it may be a more important factor in young children (up to 30%). The primary mechanism of nephrolithiasis-associated AKI is obstructive nephropathy, and factors on presentation with obstructive uropathy predict the likelihood of long-term renal recovery. Crystalline nephropathy is another potential pathway in certain circumstances that is often associated with a worse outcome. Recent studies have elucidated additional pathways whereby calcium oxalate crystals can cause acute injury, implicating innate immunity and intracellular inflammasome pathways. Several large cohort studies have demonstrated an independent association of nephrolithiasis with CKD and end-stage renal disease, although the effect size is modest. Urologic comorbidities, urinary infection, and shared underlying risk factors (e.g., diabetes, hypertension) all impact nephrolithiasis-associated CKD risk. SUMMARY Obstructive nephropathy and crystalline nephropathy both contribute to nephrolithiasis-associated AKI, although the latter appears to have a worse prognosis. Nephrolithiasis is an independent, albeit small, risk factor for CKD. Further study is needed to clarify the incidence and mechanisms of nephrolithiasis-associated AKI, and the relationship between nephrolithiasis-associated AKI and CKD.
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Affiliation(s)
- Xiaojing Tang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
- Division of Nephrology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - John C. Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
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