Journals / Turkish Journal of Urology / 2017 / Cilt: 43 - Sayı: 4

Urinary matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 1 biomarkers for predicting renal scar in children with urinary tract infection

Üriner sistem enfeksiyonu olan çocuklarda renal skarın biyobelirteçleri olarak üriner matriks metalloproteinaz -9 ve metalloproteinaz-1 doku inhibitörü

Pages
536–542
Publication Date
2022-11-05
DOI
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⚡ TL;DR(Too Long; Didn't Read)

For comparison of groups 1 and 2, the cutoffvalues were measured as 75.5 ng/mL (sensitivity 62.5%, specificity 71.1%, positive predictive value, PPV,48%, negative predictive value, NPV, 82%), 16.1 ng/mL (sensitivity 75%, specificity 55.3%, PPV 41%, NPV84%), and 1310.7 ng/mL (sensitivity 75% specificity 60.5%, PPV 44%, NPV 85%) for MMP9, TIMP1, andMMP9×TIMP1 levels, respectively.Conclusion: Evaluation of urinary MMP9 and TIMP1 levels may help to identify children with APN who areat risk of developing renal scarring.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Urinary tract infection occurs in 1.8–6.6% of children under 6 years old.
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Key Findings & Data:The aim of this study wasto assess the urinary concentrations of matrix metalloproteinase 9 (MMP9) and tissue inhibitor of metalloproteinase1 (TIMP1), in children with acute pyelonephritis (APN) and the potential to develop renal scarring.Material and methods: Children who had experienced an episode of APN were divided into 2 groups.
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Conclusion & Impact:For comparison of groups 1 and 2, the cutoffvalues were measured as 75.5 ng/mL (sensitivity 62.5%, specificity 71.1%, positive predictive value, PPV,48%, negative predictive value, NPV, 82%), 16.1 ng/mL (sensitivity 75%, specificity 55.3%, PPV 41%, NPV84%), and 1310.7 ng/mL (sensitivity 75% specificity 60.5%, PPV 44%, NPV 85%) for MMP9, TIMP1, andMMP9×TIMP1 levels, respectively.Conclusion: Evaluation of urinary MMP9 and TIMP1 levels may help to identify children with APN who areat risk of developing renal scarring.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Urinary tract infection occurs in 1.8–6.6% of children under 6 years old. The aim of this study wasto assess the urinary concentrations of matrix metalloproteinase 9 (MMP9) and tissue inhibitor of metalloproteinase1 (TIMP1), in children with acute pyelonephritis (APN) and the potential to develop renal scarring.Material and methods: Children who had experienced an episode of APN were divided into 2 groups. Group1 included children with APN who exhibited scarring and group 2 included children with APN who had anormal 99mTechnetium dimercaptosuccinic acid scan. Urinary levels of MMP9 and TIMP1 were measured inthe acute phase of infection. A receiver operating characteristic curve was generated to allow calculation ofcut-off values.Results: Sixty-one children were enrolled across the 2 groups: group 1 contained 16 patients (all female);group 2, 38 children (36 female and 2 male). Urinary levels of MMP9 and TIMP1 were significantly higherin group 1 than in group 2 (p=0.037 and 0.022 respectively). For comparison of groups 1 and 2, the cutoffvalues were measured as 75.5 ng/mL (sensitivity 62.5%, specificity 71.1%, positive predictive value, PPV,48%, negative predictive value, NPV, 82%), 16.1 ng/mL (sensitivity 75%, specificity 55.3%, PPV 41%, NPV84%), and 1310.7 ng/mL (sensitivity 75% specificity 60.5%, PPV 44%, NPV 85%) for MMP9, TIMP1, andMMP9×TIMP1 levels, respectively.Conclusion: Evaluation of urinary MMP9 and TIMP1 levels may help to identify children with APN who areat risk of developing renal scarring.

Özet

Amaç: Altı yaş altı çocukların %1,8-6,6’sında üriner sistem enfeksiyonu oluşmaktadır. Bu çalışmanın amacı akut piyelonefritli (APN) renal skarlaşma geliştirme potansiyeli olan çocuklarda matriks metalloproteinaz -9 (MMP9) ve metalloproteinaz-1 doku inhibitörü (TIMP1) adlı iki biyobelirtecin idrardaki konsantrasyonlarını değerlendirmekti. Gereç ve yöntemler: Bir APN atağı geçirmiş çocuklar iki gruba ayrılmıştır. Grup 1 skarlaşma gösteren APN’li, Grup 2 ise APN’li ancak normal DMSA bulguları olan çocukları içermiştir. Enfeksiyonun akut döneminde idrar MMP9 ve TIMP1 düzeyleri ölçülmüştür. Kestirim değerlerinin hesaplanmasına olanak tanımak için alıcı işletim karakteristik eğrisi oluşturulmuştur. Bulgular: Çalışmaya Grup 1 (16 kız çocuk) ve Grup 2 (36’sı kız ve 2’si erkek çocuk) olmak üzere toplam 61 çocuk dahil edilmiştir. Grup 1’de MMP9 ve TIMP1 düzeyleri anlamlı derecede daha yüksekti (sırasıyla p=0,022 ve 0,037). İki grubun karşılaştırılmasında ölçülen kestirim değerleri (MMP9 için) 75,5 ng/mL %62,5 duyarlılık, %71,5 özgüllük, %48 PPV ve %82 NPV; (TIMP1 için) 16,1 ng/mL %75 duyarlılık, %55,3 özgüllük, %41 PPV ve %84 NPV ve (MMP9×TIMP1 için) 1310,7 ng/mL %75 duyarlılık, %60,5 özgüllük, %44 PPV ve %85 NPV’e sahipti. Sonuç: Üriner MMP9 ve TIMP1 düzeylerinin değerlendirilmesi renal skar gelişme riski olan APN’li çocukların saptanmasına yardımcı olabilir

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Cite This Article

MOHAMMADJAFARİ, H., RAFİEİ, A., BAZİ, S., YAZDANİ, P., ABEDİ, S. M. (2022). Urinary matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 1 biomarkers for predicting renal scar in children with urinary tract infection. Turkish Journal of Urology, Cilt: 43 - Sayı: 4, 536–542. https://ajindex.com/articles/614472

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References (4)

  1. Taranta-Janusz K, Zoch-Zwierz W, Wasilewska A, Tenderenda E, Korzeniecka-Kozerska A. Serum and urinary concentration of selected metalloproteinases and their tissue inhibitors in children with vesicoureteral reflux. Pol Merkur Lekarski 2010;29:88-92.
  2. Tenderenda E, Zoch-Zwierz W, Wasilewska A, Porowski T, Taranta-Janusz K, Kołodziejczyk Z, et al. Matrix metalloproteinases 2 and 9 and their tissue inhibitors 1 and 2 in the urine of children with pyelonephritis. Pol Merkur Lekarski 2009;27:10-3.
  3. Hatipoglu S, Sevketoglu E, Gedikbasi A, Yilmaz A, Kiyak A, Mulazimoglu M, et al. Urinary MMP-9/NGAL complex in children with acute cystitis. Pediatr Nephrol 2011;26:1263-8. [CrossRef] Mohammadjafari H, Rafiei A, Abedi M, Aalaee A, Abedi E. The role of urinary TIMP1 and MMP9 levels in predicting vesicoureteral reflux in neonates with antenatal hydronephrosis. Pediatr Nephrol 2014;29:871-8. [CrossRef] Ahmed AKH. Matrix metalloproteinases and their inhibitors in kidney scarring: culprits or innocents. J Health Sci 2009;55:473-83. [CrossRef] Petrovic S, Bogavac-Stanojevic N, Peco-Antic A, Ivanisevic I, Kotur-Stevuljevic J, Paripovic D, et al. Clinical application neutrophil gelatinase-associated lipocalin and kidney injury molecule-1 as indicators of inflammation persistence and acute kidney injury in children with urinary tract infection. Biomed Res Int 2013;2013:947157. [CrossRef] Islekel H, Soylu A, Altun Z, Yis U, Turkmen M, Kavukcu S. Serum and urine cystatin C levels in children with post-pyelonephritic renal scarring: a pilot study. Int Urol Nephrol 2007;39:1241-50. [CrossRef] Nickavar A, Safaeian B, Valavi E, Moradpour F. Validity of Neutrophil Gelatinase Associated Lipocaline as a Biomarker for Diagnosis of Children with Acute Pyelonephritis. Urol J 2016;13:2860-3.
  4. Ghasemi K, Esteghamati M, Borzoo S, Parvaneh E, Borzoo S. Predictive Accuracy of Urinary neutrophil gelatinase associated lipocalin (NGAL) for renal parenchymal involvement in Children with Acute Pyelonephritis. Electron Physician 2016;8:1911-7. [CrossRef] Price JR, Guran L, Lim JY, Megli CJ, Clark AL, Edwards SR, et al. Neutrophil Gelatinase-Associated Lipocalin Biomarker and Urinary Tract Infections: A Diagnostic Case-Control Study (NUTI Study). Female Pelvic Med Reconstr Surg 2017;23:101- 7. [CrossRef] Forster CS, Devarajan P. Neutrophil gelatinase-associated lipocalin: utility in urologic conditions. Pediatr Nephrol 2017;32:377- 81. [CrossRef] Kim BK, Yim HE, Yoo KH. Plasma neutrophil gelatinase-as