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      Octreotide Delaying the Progression of Recurrent IgA Nephropathy After Kidney Transplantation

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      Author(s): , MD 1 , , MD 1 ,
      Publication date (Electronic):
      Journal: Transplantation Direct
      Publisher: Wolters Kluwer Health

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          Abstract

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          Abstract

          IgA Nephropathy (IgAN) is a common cause of end-stage kidney disease worldwide. Unfortunately, the exact pathogenesis of IgAN remains uncertain without any targeted therapy. While kidney transplantation remains the gold standard treatment for those with end-stage kidney disease from IgAN, recurrence occurs frequently and may lead to early kidney transplant loss. Research has suggested that insulin-like growth factor-1 may play a role in mesangial cell proliferation in IgAN and Somatostatin may inhibit insulin-like growth factor-1. In this single case study, we report the use of octreotide, a somatostatin analogue, as a potential novel therapy for early recurrent IgAN post kidney transplant.

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          Predicting renal outcome in IgA nephropathy.

          M G Radford, J V Donadio, E J Bergstralh … (1997)
          Immunoglobulin A (IgA) nephropathy, the most common form of glomerulonephritis worldwide, is characterized by a heterogeneous clinical course. In this study, multivariate analysis was performed to identify histopathologic and clinical features that most accurately predict adverse outcome from a dataset of 148 individuals with IgA nephropathy who underwent renal biopsy at our institution between 1973 and 1995. A semiquantitative scoring system was developed for assessment of six glomerular, eight interstitial, and six vascular histopathologic features of IgA nephropathy. Glomerular and interstitial proliferative activity was evaluated by immunostaining archival biopsy specimens with Mib-1, an antibody directed against the Ki-67 antigen. Kaplan-Meier survival analysis was performed, with renal failure being defined as onset of dialysis or transplantation. A number of clinicopathologic factors were univariately associated with adverse outcome, including elevated serum creatinine levels; the presence of hypertension; proteinuria; component and total histopathologic scores; and positive glomerular or interstitial Mib-1 scores. The total glomerular score, consisting of the arithmetic sum of each of the six component scores, was the strongest histopathologic predictor of adverse outcome. Total interstitial and vascular scores also provided more prognostic information than did individual component scores. By multivariate analysis, high total glomerular scores, increased serum creatinine levels at diagnosis, and younger age were significant (P < 0.01) independent predictors of renal failure. Our studies provide a rational basis for the inclusion of composite histopathologic scores in clinical intervention studies of patients with IgA nephropathy and other glomerular disorders.
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            The Emerging Role of Complement Proteins as a Target for Therapy of IgA Nephropathy

            Dana Rizk, Nicolas Maillard, Bruce Julian … (2019)
            IgA nephropathy (IgAN) is the most common form of primary glomerulonephritis worldwide and a common cause of end-stage renal disease. Evaluation of a kidney biopsy is necessary for diagnosis, with routine immunofluorescence microscopy revealing dominant or co-dominant IgA immunodeposits usually with complement C3 and sometimes IgG and/or IgM. IgA nephropathy reduces life expectancy by more than 10 years and leads to kidney failure in 20–40% of patients within 20 years of diagnosis. There is accumulating clinical, genetic, and biochemical evidence that complement plays an important role in the pathogenesis of IgA nephropathy. The presence of C3 differentiates the diagnosis of IgA nephropathy from the subclinical deposition of glomerular IgA. Markers for the activation of the alternative and mannan-binding lectin (MBL) pathways in renal-biopsy specimens are associated with disease activity and portend a worse renal outcome. Complement proteins in the circulation have also been evaluated in IgA nephropathy and found to be of prognostic value. Recently, genetic studies have identified IgA nephropathy-associated loci. Within these loci are genes encoding products involved in complement regulation and interaction with immune complexes. Put together, these data identify the complement cascade as a rational treatment target for this chronic kidney disease. Recent case reports on the successful use of humanized anti-C5 monoclonal antibody eculizumab are consistent with this hypothesis, but a better understanding of the role of complement in IgA nephropathy is needed to guide future therapeutic interventions.
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              Recent advances in our understanding of recurrent primary glomerulonephritis after kidney transplantation.

              Fernando Cosio, Daniel C. Cattran (2017)
              Recurrent glomerulonephritis (GN) is an important cause of kidney allograft failure, particularly in younger recipients. Approximately 15% of death-censored graft failures are due to recurrent GN, but this incidence is likely an underestimation of the magnitude of the problem. Overall, 18% to 22% of kidney allografts are lost due to GN, either recurrent or presumed de novo. The impact of recurrent GN on allograft survival was recognized from the earliest times in kidney transplantation. However, progress in this area has been slow, and our understanding of GN recurrence remains limited, in large part due to incomplete understanding of the pathogenesis of these diseases. This review focuses on recent advances in our general understanding of the pathophysiology of primary GN, the risk of recurrence in the allograft, and the consequences for kidney graft survival. We focus specifically on the most common forms of primary GN, including focal segmental glomerulosclerosis, membranous nephropathy, membranoproliferative glomerulonephritis, and IgA nephropathy. New understanding of the pathogenesis of these diseases has had direct clinical implications for transplantation, allowing better identification of candidates at high risk of recurrence and earlier diagnoses, and it is expected to lead to significance improvements in the therapy and perhaps even prevention of GN recurrence. More than ever, it is essential to fully characterize GN before transplantation as this information will direct our management posttransplantation. Further, the relative rarity of recurrent GN dictates the need for multicenter studies in order to evaluate, test, and validate recent advances and therapies.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Transplant Direct
                Journal ID (iso-abbrev): Transplant Direct
                Journal ID (publisher-id): TXD
                Title: Transplantation Direct
                Publisher: Wolters Kluwer Health
                ISSN (Electronic): 2373-8731
                Publication date Collection: January 2020
                Publication date (Electronic): 24 December 2019
                Volume: 6
                Issue: 1
                Electronic Location Identifier: e518
                Affiliations
                [1 ]Department of Medicine and Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA.
                Author notes
                Correspondence: Sundaram Hariharan, MD, Thomas E Starzl Transplantation Institute, University of Pittsburgh Medical Center, 3459 Fifth Ave, 7S, Pittsburgh, PA 15213. ( hariharans@ 123456upmc.edu ).
                Article
                Accession ID: 00007
                DOI: 10.1097/TXD.0000000000000963
                PMC ID: 6964927
                SO-VID: 347f2baf-e442-4841-84a8-ede247c4e8d0
                Copyright © Copyright © 2019 The Author(s). Transplantation Direct. Published by Wolters Kluwer Health, Inc.
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

                History
                Date received : 16 September 2019
                Date revision received : 23 October 2019
                Date accepted : 08 November 2019
                Categories
                Subject: Kidney Transplantation
                Custom metadata
                OPEN-ACCESS TRUE
                SDC T

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