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https://www.readbyqxmd.com/read/29329518/the-use-of-eculizumab-in-gemcitabine-induced-thrombotic-microangiopathy
#1
Vinod Krishnappa, Mohit Gupta, Haikoo Shah, Abhijit Das, Natthavat Tanphaichitr, Robert Novak, Rupesh Raina
BACKGROUND: Thrombotic microangiopathy (TMA) secondary to gemcitabine therapy (GiTMA) is a very rare pathology that carries a poor prognosis, with nearly half of the cases progressing to end stage renal disease. GiTMA is most commonly associated with adenocarcinomas, most notably pancreatic cancers. The mainstay of management is withdrawal of the offending drug and supportive care. Plasmapheresis has a limited role and hemodialysis may help in the management of fluid overload secondary to renal failure...
January 12, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29325696/urinary-mrna-analysis-of-biomarkers-to-epithelial-mesenchymal-transition-of-renal-allograft
#2
Imen Mezni, Pierre Galichon, Mohammed Mongi Bacha, Yi-Chun Xu-Dubois, Imen Sfar, David Buob, Sabrina Benbouzid, Rim Goucha, Yousr Gorgi, Ezzedine Abderrahim, Mondher Ounissi, Karine Dahan, Nacera Ouali, Alexandre Hertig, Isabelle Brocheriou, Aly Raies, Taieb Ben Abdallah, Éric Rondeau
Renal allograft loss is most often a chronic process, irrespective of the mechanism at stake. In this prospective study, we studied the expression of epithelial to mesenchymal transition (EMT) markers vimentin and β-catenin by immunohistochemistry in the surveillance biopsy and measured the mRNA encoding vimentin (VIM), CD45, GAPDH and uroplakin 1a (UPK) by quantitative PCR in urinary cells in 75 renal transplant patients. The aim is to establish a simple screening test for chronic renal allograft dysfunction...
January 8, 2018: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29324897/serum-galactose-deficient-iga1-and-igg-autoantibodies-correlate-in-patients-with-iga-nephropathy
#3
William J Placzek, Hiroyuki Yanagawa, Yuko Makita, Matthew B Renfrow, Bruce A Julian, Dana V Rizk, Yusuke Suzuki, Jan Novak, Hitoshi Suzuki
IgA nephropathy is an autoimmune disease characterized by IgA1-containing glomerular immune deposits. We previously proposed a multi-hit pathogenesis model in which patients with IgA nephropathy have elevated levels of circulatory IgA1 with some O-glycans deficient in galactose (Gd-IgA1, autoantigen). Gd-IgA1 is recognized by anti-glycan IgG and/or IgA autoantibodies, resulting in formation of pathogenic immune complexes. Some of these immune complexes deposit in the kidney, activate mesangial cells, and incite glomerular injury leading to clinical presentation of IgA nephropathy...
2018: PloS One
https://www.readbyqxmd.com/read/29323077/epidermoid-cyst-of-the-renal-pelvis-masquerading-as-malignancy
#4
Dinesh Pradhan, Gabriela Quiroga-Garza, Ronald Hrebinko, Rajiv Dhir, Anil V Parwani
Epidermoid cyst of the renal pelvis is exceptionally rare. The histogenetic mechanism has not been well characterized. Herein, we report a case of intrarenal epidermoid cyst in a 62-year-old woman who had undergone left nephrolithotomy for a staghorn calculus. She was being followed up for bilateral renal cysts when a complex mass was noted arising from the lower pole of the left kidney. Renal ultrasound showed a small left kidney with a solid vascular echogenic mass. A laparoscopic radical nephrectomy was performed...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322432/renal-histopathological-findings-of-retinal-vasculopathy-with-cerebral-leukodystrophy
#5
Yutaka Tsubata, Takashi Morita, Tetsuo Morioka, Taiji Sasagawa, Kouzo Ikarashi, Noriko Saito, Hisaki Shimada, Shigeru Miyazaki, Shinji Sakai, Hajime Tanaka, Rie Saito, Yasuko Toyoshima, Hiroaki Nozaki, Ichiei Narita
Retinal vasculopathy with cerebral leukodystrophy (RVCL) is a rare autosomal dominant systemic microvascular disease. Neurological disorders and visual disturbance are highlighted as manifestations of RVCL; however, there are few reports focused on nephropathy. Herein, we describe detailed renal histopathological findings in a daughter and father with RVCL, proven by TREX1 genetic analysis. A kidney biopsy of the daughter, 35-year-old with asymptomatic proteinuria, revealed unique and various glomerular changes...
January 10, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29321412/the-successful-treatment-of-sodium-polystyrene-sulfonate-induced-enteritis-diagnosed-by-small-bowel-endoscopy
#6
Kohei Okayama, Yoshikazu Hirata, Daisuke Kumai, Yuki Yamamoto, Yuki Kojima, Takuya Kanno, Hirokazu Ikeuchi, Hisato Mochizuki, Hiroki Takada, Satoshi Sobue
Sodium polystyrene sulfonate (SPS: Kayexalate®) is an ion-exchange resin used to treat hyperkalemia in patients with chronic kidney disease. It is known that this resin sometimes causes colonic necrosis and perforation, but there are few reports about small bowel necrosis associated with SPS. We herein report the case of a patient who developed SPS-induced small bowel necrosis, which was diagnosed based on the examination of a small bowel endoscopic biopsy specimen. The SPS-induced small bowel necrosis was resistant to conservative treatment including the cessation of SPS, and finally required surgical bowel resection...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29319775/primary-hiperoxaluria-diagnosed-after-kidney-transplantation-report-of-2-cases-and-literature-review
#7
John Fredy Nieto Rios, Monica Zuluaga, Lina Maria Serna Higuita, Adriana Florez, Diana Carolina Bello-Marquez, Arbey Aristizábal, Catalina Ocampo Kohn, Gustavo Adolfo Zuluaga
Primary hyperoxaluria (PH) is a very rare genetic disorder; it is characterized by total or partial deficiency of the enzymes related to the metabolism of glyoxylate, with an overproduction of calcium oxalate that is deposited in different organs, mainly the kidney, leading to recurrent lithiasis, nephrocalcinosis and end stage renal disease (ESRD). In patients with ESRD that receive kidney transplantation alone, the disease has a relapse of 100%, with graft loss in a high percentage of patients in the first 5 years of transplantation...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29319773/anca-positive-pauci-immune-crescentic-glomerulonephritis-in-a-patient-with-systemic-lupus-erythematosus
#8
Percy Herrera-Añazco, Percy Velásquez-Castillo, Josmel Pacheco-Mendoza, Germán Valenzuela-Rodriguez, Carmen Asato-Higa
The pauci-immune crescentic glomerulonephritis (PICGN) is generally associated with small-vessel vasculitis with a few reported cases associated with other autoimmune diseases such as Systemic Lupus Erythematosus (SLE). We present the case of a female 34-year-old patient with acute kidney injury symptoms with indication for renal replacement therapy in the context of clinical SLE diagnosis. A kidney biopsy was conducted and it was found that most glomeruli showed some segmental sclerosis with synechia to the Bowman's capsule...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29319763/current-distribution-pattern-of-biopsy-proven-glomerular-disease-in-salvador-brazil-40-years-after-an-initial-assessment
#9
Washington Luis Conrado Dos-Santos, Glória Maria Maranhão Sweet, Labene Gondim Azevêdo, Maria Brandão Tavares, Maria Fernanda Sanches Soares, Caroline Vilas Boas de Melo, Márcia Fernanda Melo Carneiro, Rilma Ferreira de Souza Santos, Márcia Cristina Conrado, Daniela Teixeira Leal Braga, Marcia Carvalho Bessa, Nathanael de Freitas Pinheiro Junior, Marília Bahiense-Oliveira
INTRODUCTION: A report on the prevalence of glomerular disease diagnosed via renal biopsy in Salvador, BA, Brazil was published in 1973 and showed a predominance of membranoproliferative glomerulonephritis, which was frequently associated with hepatosplenic schistosomiasis. OBJECTIVE: In this study, we investigate the potential changes in the distribution of glomerular diseases after a period of important epidemiological transition in Brazil. METHODS: Pathology reports of all patients subjected to kidney biopsy from 2003 to 2015 in a referral nephrology service were reviewed...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29319621/selective-cd28-inhibition-modulates-alloimmunity-and-cardiac-allograft-vasculopathy-in-anti-cd154-treated-monkeys
#10
Tianshu Zhang, Agnes M Azimzadeh, Wenji Sun, Natalie A O'Neill, Evelyn Sievert, Emily Bergbower, Gheorghe Braileanu, Lars Burdorf, Xiangfei Cheng, Thomas Monahan, Siamak Dahi, Donald Harris, Elana Rybak, Emily Welty, Anthony Kronfli, Chris Avon, Richard N Pierson
BACKGROUND: Selective CD28 inhibition is actively pursued as an alternative to B7 blockade using CTLA4-Ig based on the hypothesis that the checkpoint immune regulators CTLA-4 and PD-L1 will induce tolerogenic immune signals. We previously showed that blocking CD28 using a monovalent nonactivating reagent (single chain anti-CD28 Fv fragment linked to alpha-1 anti-trypsin: sc28AT) synergizes with calcineurin inhibitors in nonhuman primate (NHP) kidney and heart transplantation. Here, we explored the efficacy of combining a 3-week 'induction" sc28AT treatment with prolonged CD154 blockade...
January 10, 2018: Transplantation
https://www.readbyqxmd.com/read/29314776/chronicity-index-especially-glomerular-sclerosis-is-the-most-powerful-predictor-of-renal-response-following-immunosuppressive-treatment-in-patients-with-lupus-nephritis
#11
Dong-Jin Park, Sung-Eun Choi, Haimuzi Xu, Ji-Hyoun Kang, Kyung-Eun Lee, Ji Shin Lee, Yoo-Duk Choi, Shin-Seok Lee
AIM: Renal responses to immunosuppressive agents in patients with lupus nephritis (LN) differ depending on ethnicity, follow-up duration, disease severity and treatment. Thus, we evaluated predictors of complete remission during the first year following immunosuppressive treatment in patients with LN. METHODS: We retrospectively reviewed 79 patients who underwent kidney biopsy prior to the start of induction treatment and who were subsequently treated with immunosuppressive drugs for at least 6 months and followed-up for more than a year...
January 5, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29312857/biomarkers-and-a-tailored-approach-for-immune-monitoring-in-kidney-transplantation
#12
EDITORIAL
Francisco Salcido-Ochoa, John Carson Allen
A literature review on immune monitoring in kidney transplantation produced dozens of research articles and a multitude of promising biomarkers, all in the quest for the much sought after - but perennially elusive - "holy grail" of kidney biomarkers able to unequivocally predict acute transplant rejection vs non-rejection. Detection methodologies and study designs were many and varied. Hence the motivation for this editorial, which espouses the notion that in today's kidney transplantation milieu, the judicious use of disease classifiers tailored to specific patient immune risks may be more achievable and productive in the long run and confer a greater advantage for patient treatment than the pursuit of a single "omniscient" biomarker...
December 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/29310824/c3-glomerulonephritis-and-dense-deposit-disease-share-a-similar-disease-course-in-a-large-united-states-cohort-of-patients-with-c3-glomerulopathy
#13
Andrew S Bomback, Dominick Santoriello, Rupali S Avasare, Renu Regunathan-Shenk, Pietro A Canetta, Wooin Ahn, Jai Radhakrishnan, Maddalena Marasa, Paul E Rosenstiel, Leal C Herlitz, Glen S Markowitz, Vivette D D'Agati, Gerald B Appel
C3 glomerulonephritis (C3GN) and dense deposit disease comprise the two classes of C3 glomerulopathy. Studies from Europe and Asia have aided our understanding of this recently defined disorder, but whether these data apply to a diverse United States patient population remains unclear. We, therefore, reviewed clinical and histopathological data, including generation of a C3 Glomerulopathy Histologic Index to score biopsy activity and chronicity, to determine predictors of progression to end-stage renal disease (ESRD) and advanced chronic kidney disease (CKD) in 111 patients (approximately 35% non-white) with C3 glomerulopathy: 87 with C3GN and 24 with dense deposit disease...
January 6, 2018: Kidney International
https://www.readbyqxmd.com/read/29310811/effect-of-renin-angiotensin-system-inhibitors-on-survival-in-kidney-transplant-recipients-a-systematic-review-and-meta-analysis
#14
REVIEW
Ya-Mei Jiang, Tu-Run Song, Yang Qiu, Jin-Peng Liu, Xian-Ding Wang, Zhong-Li Huang, Tao Lin
Renin-angiotensin system inhibitors, specifically angiotensin II converting enzyme inhibitors (ACEI) and angiotensin II receptor blockers (ARB), have confirmed renoprotective benefits in patients with proteinuria and hypertension. However, it remains controversial whether these agents are beneficial to kidney recipients. We conducted this meta-analysis to evaluate the effects of ACEI/ARB treatment on patient and allograft survival after kidney transplant. The PubMed, Embase and Cochrane Library databases were searched for eligible articles from before May 2016, and we included 24 articles (9 randomised controlled trials [RCTs] and 15 cohort studies with 54,096 patients), in which patient or graft survival was compared between an ACEI/ARB treatment arm and a control arm...
January 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29310419/proliferative-lupus-nephritis-in-the-absence-of-overt-systemic-lupus-erythematosus-a-historical-study-of-12-adult-patients
#15
Maxime Touzot, Cécile Saint-Pastou Terrier, Stanislas Faguer, Ingrid Masson, Hélène François, Lionel Couzi, Aurélie Hummel, Nathalie Quellard, Guy Touchard, Noémie Jourde-Chiche, Jean-Michel Goujon, Eric Daugas
Severe lupus nephritis in the absence of systemic lupus erythematosus (SLE) is a rare condition with an unclear clinical presentation and outcome.We conducted a historical observational study of 12 adult (age >18 years) patients with biopsy-proven severe lupus nephritis or lupus-like nephritis without SLE immunological markers at diagnosis or during follow-up. Excluded were patients with chronic infections with HIV or hepatitis B or C; patients with a bacterial infectious disease; and patients with pure membranous nephropathy...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29310372/acute-kidney-injury-due-to-povidone-iodine-ingestion-a-case-report
#16
Chang Seong Kim, Sung Sun Kim, Eun Hui Bae, Seong Kwon Ma, Soo Wan Kim
RATIONALE: Povidone-iodine is a broad-spectrum antiseptic applied topically to treat wounds and prevent their infection. There have been several case reports of acute kidney injury (AKI) in burn patients after povidone-iodine irrigation and in patients receiving the substance as a sclerotherapy agent for management of lymphocele after renal transplantation. However, biopsy-confirmed AKI after ingestion of povidone-iodine has not previously been described. PATIENT CONCERNS: A 47-year-old man who had apparently ingested povidone-iodine solution and presented with nausea, vomiting, and reduced urine output...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29310109/soluble-tim-3-and-gal-9-are-associated-with-renal-allograft-dysfunction-in-kidney-transplant-recipients-a-cross-sectional-study
#17
Ya Mei Li, Yun Ying Shi, Yi Li, Lin Yan, Jiang Tao Tang, Yang Juan Bai, Xiao Juan Wu, Bo Dai, Yuan Gao Zou, Lan Lan Wang
BACKGROUND: T cell immunoglobulin mucin-3 (Tim-3) has been reported to participate in the regulation of immune response and the induction of allograft tolerance. However, the association between Tim-3 and renal allograft dysfunction is unclear. We studied the expression of cellular and soluble Tim-3 (sTim-3), soluble galectin-9 (sGal-9) and carcinoembryonic antigen-related cell adhesion molecule-1 (sCEACAM-1) in kidney transplantation recipients (KTRs) to explore their roles in allograft dysfunction...
January 5, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29309806/decreased-expression-of-megalin-and-cubilin-and-altered-mitochondrial-activity-in-tenofovir-nephrotoxicity
#18
Alexandre Cez, Isabelle Brocheriou, François-Xavier Lescure, Clovis Adam, Pierre-Marie Girard, Gilles Pialoux, Søren K Moestrup, Soraya Fellahi, Jean-Philippe Bastard, Pierre Ronco, Emmanuelle Plaisier
Tenofovir disoproxil fumarate (TDF) is a commonly used antiretroviral drug for HIV, rarely causing Fanconi syndrome and acute kidney injury. We retrospectively analyzed the clinico-pathological presentation of 20 cases of tenofovir-induced tubulopathy, and investigated the renal expression of the megalin and cubilin proteins, as well as the mitochondrial respiratory chain activity. Estimated glomerular filtration rate (eGFR) before TDF exposure was 92 ml/min/1,73m2, decreasing to 27.5 ml/min/1,73m2 at the time of biopsy, with 30% of patients requiring renal replacement therapy...
January 5, 2018: Human Pathology
https://www.readbyqxmd.com/read/29305201/initial-assessment-of-the-efficacy-of-irreversible-electroporation-ire-in-the-focal-treatment-of-localised-renal-cell-carcinoma-rcc-with-delayed-interval-kidney-tumour-resection-irene-trial-an-ablate-and-resect-pilot-study
#19
Johann J Wendler, Maciej Pech, Frank Fischbach, Julian Jürgens, Björn Friebe, Daniel Baumunk, Markus Porsch, Simon Blaschke, Daniel Schindele, Sandra Siedentopf, Jens Ricke, Martin Schostak, Jens Köllermann, Uwe B Liehr
OBJECTIVES: To assess the efficacy of irreversible electroporation (IRE) ablation of pT1a renal-cell carcinoma (RCC) in the first prospective, monocentric Phase 2a pilot ablate-and-resect study (IRENE trial). It has been postulated that focal IRE can bring about complete ablation of soft-tissue tumours with protection of healthy peritumoral tissue and anatomical structures. METHODS: The first seven study patients, with biopsy-proven pT1a RCC (15-39mm) underwent IRE...
January 2, 2018: Urology
https://www.readbyqxmd.com/read/29305091/aryl-hydrocarbon-receptor-expression-by-macrophages-and-lymphocytes-within-infiltrates-in-bk-polyomavirus-associated-nephropathy
#20
Yassine Bouatou, Geurt Stokman, Nike Claessen, Joris J T H Roelofs, Frédérike Bemelman, Jesper Kers, Sandrine Florquin
BACKGROUND: BK virus nephropathy (BKPyVN) is a major complication after renal transplantation. Little is known about the intra renal immune response during BKPyVN. The role of macrophages remains elusive. The activation of aryl hydrocarbon receptor (AHR) - a transcription factor involved in drug metabolism - plays a key role in inflammation and viral tolerance through modulation of macrophages polarization. Since AHR has not been studied in kidney transplantation, our aim was to compare the AHR expression within renal grafts in BKPyVN with T-cell mediated rejection (TCMR) as a control...
January 2, 2018: Transplant Immunology
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