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      Evaluation of TGF-β1, CCL5/RANTES and sFas/Apo-1 urine concentration in children with ureteropelvic junction obstruction

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          Abstract

          Introduction

          The aim of this study was to evaluate changes in expression of soluble biomarkers tumor factor growth-β1 (TGF-β1), CCL5/RANTES, and sFas/Apo-1 in the urine of patients undergoing ureteropyeloplasty for ureteropelvic junction (UPJ) obstruction. These factors are connected with different processes ongoing in the obstructive uropathy. If their urine concentrations correlate with AP diameter of the renal pelvis and differential function of the affected kidney, they can be helpful in making a decision on corrective surgery.

          Material and methods

          Creatinine, TGF-β1, CCL5/RANTES, and sFas/Apo-1 levels were measured in the urine from the bladder and renal pelvis of 45 patients undergoing ureteropyeloplasty and from bladders of 25 patients undergoing inguinal herniorrhaphy.

          Results

          Levels of examined biomarkers were higher in the renal pelvis and bladder of children with UPJ obstruction as compared to controls: TGF-β1 in older children and adolescents ( p < 0.05), CCL5/RANTES in the youngest and older children ( p < 0.05), and sFas/Apo-1 in all patients ( p < 0.05). Twelve months after surgery their levels in the bladder decreased: TGF-β1 in younger and older children ( p < 0.05), CCL5/RANTES in the youngest patients and adolescents ( p < 0.05), and sFas/Apo-1 in the youngest and older children ( p < 0.05). A significant decrease in the AP diameter of the renal pelvis post-operatively (32.09 mm vs. 18.72 mm) ( p < 0.01) and significant improvement in renal function (36.94% vs. 42.76%) ( p < 0.05) were observed in the examined group.

          Conclusions

          Mean TGF-β1, CCL5/RANTES, and sFas/Apo-1 urine levels are significantly increased in patients with UPJ and decreased 1 year after ureteropyeloplasty. Bladder concentrations of examined factors may be clinically useful markers of obstruction.

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          Most cited references30

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          Antenatal hydronephrosis as a predictor of postnatal outcome: a meta-analysis.

          Antenatal hydronephrosis is diagnosed in 1% to 5% of all pregnancies; however, the antenatal and postnatal management of hydronephrosis varies widely. No previous studies define the risk of postnatal pathology in infants with antenatal hydronephrosis. Our objective was to review the current literature to determine whether the degree of antenatal hydronephrosis and related antenatal ultrasound findings are associated with postnatal outcome. We searched Medline (1966-2005), Embase (1991-2004), and the Cochrane Library databases for articles on antenatal hydronephrosis. We required studies to have subjects selected on the basis of documented measurements of antenatal hydronephrosis and followed to a postnatal diagnosis. We excluded case reports, review articles, and editorials. Two independent investigators extracted data. We screened 1645 citations, of which 17 studies met inclusion criteria. We created a data set of 1308 subjects. The risk of any postnatal pathology per degree of antenatal hydronephrosis was 11.9% for mild, 45.1% for moderate, and 88.3% for severe. There was a significant increase in risk per increasing degree of hydronephrosis. The risk of vesicoureteral reflux was similar for all degrees of antenatal hydronephrosis. The findings of this meta-analysis can potentially be used for prenatal counseling and may alter current postnatal management of children with antenatal hydronephrosis. Overall, children with any degree of antenatal hydronephrosis are at greater risk of postnatal pathology as compared with the normal population. Moderate and severe antenatal hydronephrosis have a significant risk of postnatal pathology, indicating that comprehensive postnatal diagnostic management should be performed. Mild antenatal hydronephrosis may carry a risk for postnatal pathology, but additional prospective studies are needed to determine the optimal management of these children. A well-defined prospective analysis is needed to further define the risk of pathology and the appropriate management protocols.
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            Chemokines, chemokine receptors, and renal disease: from basic science to pathophysiologic and therapeutic studies.

            Leukocyte trafficking from peripheral blood into affected tissues is an essential component of the inflammatory reaction to virtually all forms of injury and is an important factor in the development of many kidney diseases. Advances in the past few years have highlighted the central role of a family of chemotactic cytokines called chemokines in this process. Chemokines help to control the selective migration and activation of inflammatory cells into injured renal tissue. Chemokines and their receptors are expressed by intrinsic renal cells as well as by infiltrating cells during renal inflammation. This study summarizes the in vitro and in vivo data on chemokines and chemokine receptors in renal diseases with a special focus on potential therapeutic effects on inflammatory processes.
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              Chemokines and chemokine receptors are involved in the resolution or progression of renal disease.

              Locally secreted chemokines mediate leukocyte recruitment during the initiation and amplification phase of renal inflammation. In turn, the infiltrating leukocytes contribute to renal damage by releasing inflammatory and profibrotic factors. Rapid down modulation of the chemokine signal will support resolution of acute inflammation, whereas progression occurs if ongoing or repeated renal injury maintains continuous local chemokine secretion and leukocyte influx into the glomerulus or the interstitial space. In glomerular injury proteinuria itself as well as glomerular secreted cytokines stimulate downstream tubular epithelial cells to also secrete chemokines. During primary tubular injury, tubular epithelial cells directly become a major site of chemokine production. This in turn supports leukocyte infiltration and activation. Infiltrating leukocytes stimulate fibroblast proliferation and matrix synthesis, leading to widening of the interstitial space. The specific and intricate renal vascular architecture renders the organ susceptible to ischemic damage as interstitial volume increases. Ischemia in turn serves as a stimulus for chemokine and cytokine production and matrix synthesis. The mutual stimulation between fibroblasts and infiltrating leukocytes supports progressive tubular damage, renal fibrosis, and glomerulosclerosis. Potentially this vicious circle leading to progression of chronic nephropathies offers the opportunity for therapeutic intervention. Interfering with the chemokine network that mediates leukocyte recruitment may represent a promising therapeutic option for progressive renal disorders and renal fibrosis. This article summarizes the present data on the role of chemokines in acute and chronic renal disease with special emphasis on their potential role in mediating resolution or progression of renal disease as well as on therapeutic options.
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                Author and article information

                Journal
                Arch Med Sci
                Arch Med Sci
                AMS
                Archives of Medical Science : AMS
                Termedia Publishing House
                1734-1922
                1896-9151
                08 August 2013
                31 October 2013
                : 9
                : 5
                : 888-894
                Affiliations
                [1 ]Department of Pediatric Surgery and Oncology, University Children's Hospital No. 4, Medical University of Lodz, Poland
                [2 ]Department of Pediatric Surgery and Urology, University Children's Hospital No. 4, Medical University of Lodz, Poland
                Author notes
                Corresponding author: Aleksandra Gawłowska-Marciniak PhD, Department of Pediatric Surgery and Oncology, Medical University of Lodz, 36/50 Sporna St, 91-738 Lodz, Poland. Phone/fax: +48 42 617 77 05. E-mail: agawlowska@ 123456mnc.pl
                Article
                21247
                10.5114/aoms.2013.36912
                3832820
                24273575
                44f85b60-54e9-4758-adfc-d32a5f3f9a14
                Copyright © 2013 Termedia & Banach

                This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 11 August 2012
                : 20 August 2012
                : 26 August 2012
                Categories
                Clinical Research

                Medicine
                obstructive uropathy,biomarkers,renal ultrasonography,renoscintigraphy
                Medicine
                obstructive uropathy, biomarkers, renal ultrasonography, renoscintigraphy

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