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Renal transplantation

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https://www.readbyqxmd.com/read/29453871/examining-the-incidence-and-presentation-of-melanoma-in-the-cardiothoracic-transplant-population
#1
Charles J Puza, Adela R Cardones, Paul J Mosca
Importance: The immunosuppression vital to maintaining transplanted organs comes with an increased incidence of cutaneous neoplasms. Understanding the genesis of malignant melanoma (MM) in transplant subpopulations is necessary for adequate disease surveillance. Objective: To determine the incidence and timing of presentation of MM in the cardiothoracic (heart and/or lung) transplant (CTT) population. Design, Setting, and Participants: This was a retrospective cohort study of 1164 patients who underwent a CTT from 2001 through 2016 with a median follow-up time of 4...
February 16, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29452170/expression-and-significance-of-sirt1-in-renal-allografts-at-the-early-stage-of-chronic-renal-allograft-dysfunction
#2
Yue Xia, Jin Deng, Qin Zhou, Xiaofei Shao, Xingyan Yang, Mengjiao Shao, Hequn Zou
OBJECTIVE: To investigate the expression and significance of Sirt1 in renal allografts at the early stage of chronic renal allograft dysfunction (CRAD). METHODS: CRAD rat models were established using classical orthotopic F344-Lewis kidney transplantation. F344 and Lewis uninephrectomized rats were used as controls. Twelve weeks after the operation, the rats were sacrificed for renal function, histological, immunohistochemistry and molecular biological analyses...
February 13, 2018: Transplant Immunology
https://www.readbyqxmd.com/read/29452169/expression-patterns-of-toll-like-receptor-tlr-2-tlr-4-and-myeloid-differentiation-primary-response-gene-88-myd88-in-renal-transplant-patients-developing-allograft-dysfunction-a-cohort-study
#3
Morteza Hosseinzadeh, Pedram Ahmadpoor, Mir Saeed Yekaninejad, Fatemeh Pourrezagholi, Farshad Foroughi, Mina Ghorbanpour, Mehri Barabadi, Sanaz K Shahbaz, Ghasem Solgi, Aliakbar Amirzargar
This cohort intends to determine the sequential dynamic changes in Toll-like receptor (TLR)-4, TLR-2, and myeloid differentiation primary response gene 88 (MYD88) mRNA expressions in PBMCs and biopsy samples from kidney allograft recipients in relation to graft function. This study enrolled 52 renal transplant patients, 27 with well functioning graft (WFG) and 25 graft dysfunction (GD). Peripheral blood samples pre- and post-transplantation (days 2, 90 and 180) were collected to analyze mRNA expression levels of TLR-2, TLR-4, and MYD88 genes in relation to allograft function during one-year follow up...
February 13, 2018: Transplant Immunology
https://www.readbyqxmd.com/read/29451350/an-economic-assessment-of-contemporary-kidney-transplant-practice
#4
David Axelrod, Mark A Schnitzler, Huiling Xiao, William Irish, Elizabeth Tuttle-Newhall, Su-Hsin Chang, Bertram L Kasiske, Tarek Alhamad, Krista L Lentine
Kidney transplant is the optimal therapy for end stage renal disease, prolonging survival and reducing healthcare spending. Prior economic analyses of kidney transplant using Markov models, have generally assumed compatible, low risk, donors. The economic implications of using deceased donor kidneys with high kidney donor profile index (KPDI) scores, ABO incompatible or HLA incompatible living donors has not been assessed. The costs of transplant and dialysis were compared using discrete event simulation over a 10-year period, using data from the United States Renal Data System, Vizient ™ (Irving, Texas), and literature review...
February 16, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29451184/the-long-term-outcomes-of-cirrhotic-patients-with-pleural-effusion
#5
Tsung-Hsing Hung, Chih-Wei Tseng, Chih-Chun Tsai, Chen-Chi Tsai, Kuo-Chih Tseng, Yu-Hsi Hsieh
Background/Aim: A pleural effusion is an abnormal collection of fluid in the pleural space and may cause related morbidity or mortality in cirrhotic patients. Currently, there are insufficient data to support the long-term prognosis for cirrhotic patients with pleural effusion. In this study, we investigated the short- and long-term effects of pleural effusion on mortality in cirrhotic patients and evaluated the benefit of liver transplantation in these patients. Patients and Methods: The National Health Insurance Database, derived from the Taiwan National Health Insurance Program, was used to identify 3,487 cirrhotic patients with pleural effusion requiring drainage between January 1, 2007 and December 31, 2010...
January 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/29450214/-mycobacterium-abscessus-complex-infections-a-retrospective-cohort-study
#6
Maroun Sfeir, Marissa Walsh, Rossana Rosa, Laura Aragon, Sze Yan Liu, Timothy Cleary, Marylee Worley, Corey Frederick, Lilian M Abbo
Background: Infections caused by Mycobacterium abscessus group strains are usually resistant to multiple antimicrobials and challenging to treat worldwide. We describe the risk factors, treatment, and clinical outcomes of patients in 2 large academic medical centers in the United States. Methods: A retrospective cohort study of hospitalized adults with a positive culture for M. abscessus in Miami, Florida (January 1, 2011, to December 31, 2014). Demographics, comorbidities, the source of infection, antimicrobial susceptibilities, and clinical outcomes were analyzed...
February 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29448053/biomarkers-of-operational-tolerance-following-kidney-transplantation-the-immune-tolerance-network-studies-of-spontaneously-tolerant-kidney-transplant-recipients
#7
REVIEW
Kenneth A Newell, Andrew B Adams, Laurence A Turka
Studies of kidney transplant recipients who have developed spontaneous and sustained tolerance have revealed an association with B cells. Unexpectedly tolerant individuals are characterized by increased numbers and frequencies of B cells in the blood and increased expression of genes associated with B cells in the blood and urine. Comparisons of the B cell repertoires of tolerant individuals and those receiving immunosuppression reveal that not only are the B cells more numerous but developmental differences result in a repertoire comprised of more naïve and transitional B cells in the tolerant cohort...
February 12, 2018: Human Immunology
https://www.readbyqxmd.com/read/29447408/survival-advantage-of-planned-haemodialysis-over-peritoneal-dialysis-a-cohort-study
#8
Alicia Thiery, François Séverac, Thierry Hannedouche, Cecile Couchoud, Van Huyen Do, Aurélien Tiple, Clémence Béchade, Erik-Andre Sauleau, Thierry Krummel
Background: Previous studies comparing the outcomes in haemodialysis (HD) with those in peritoneal dialysis (PD) have yielded conflicting results. Methods: The aim of the study was to compare the survival of planned HD versus PD patients in a cohort of adult incident patients who started renal replacement therapy (RRT) between 2006 and 2008 in the nationwide REIN registry (Réseau Epidémiologie et Information en Néphrologie). Patients who started RRT in emergency or stopped RRT within 2 months were excluded...
February 13, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29446736/gene-therapy-in-kidney-transplantation-evidence-of-efficacy-and-future-directions
#9
Jiawei Li, Guisheng Qi, Guowei Tu, Cheng Yang, Ruiming Rong
Allograft loss remains a severe clinical problem after kidney transplantation. The molecular mechanism of graft loss is a complex process involving T and/or B cell activation, inflammation responses, autophagy and apoptosis. Since these pathways are involved in immune responses in kidney transplant rejection, application of genetic interference to inhibit specific pathways could present an effective targeted gene therapy method. Recent studies have successfully attempted to use gene therapy to target the key molecules involved in immune responses during transplantation...
February 13, 2018: Current Gene Therapy
https://www.readbyqxmd.com/read/29446735/epigenetic-regulation-of-regulatory-t-cells-in-kidney-disease-and-transplantation
#10
Yufeng Liu, Bo Peng, Shengdi Wu, Nuo Xu
Regulatory T (Treg) cells are a kind of immunosuppression cells, which have been used to treat autoimmune diseases and induce allograft tolerance in clinical trials. While Treg cells based therapy is a promising treatment for kidney diseases and an emerging concept for tolerance induction in renal transplantation, a better understanding of the functions and biology of Treg cells is needed to be able to optimally exploit them. Epigenetics regulation, which refers to potentially heritable alterations in gene expression without underlying changes of the nucleotide sequence, plays an important role in Treg cells induction and maintenance...
February 13, 2018: Current Gene Therapy
https://www.readbyqxmd.com/read/29446212/free-dialysis-in-nepal-logistical-challenges-explored
#11
John Mcgee, Bimal Pandey, Abhishek Maskey, Tifany Frazer, Theodore Mackinney
Nepal's Ministry of Health began offering free lifetime hemodialysis (HD) in 2016. There has been a large growth in renal replacement therapy (RRT) services offered in Nepal since 2010, when the last known data on the subject was published. In 2016, 42 HD centers existed (223% increase since 2010) serving 1975 end stage renal disease patients (303% increase since 2010); 36 nephrologists were registered (200% increase since 2010), 12 were trained in transplantation, and 790 transplants had been performed to date...
February 15, 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29446207/vegf-mitigates-histone-induced-pyroptosis-in-the-remote-liver-injury-associated-with-renal-allograft-ischemia-reperfusion-injury-in-rats
#12
Hailin Zhao, Han Huang, Azeem Alam, Qian Chen, Ka Chuen Suen, Jiang Cui, Qizhe Sun, Rele Ologunde, Wenwen Zhang, Qingquan Lian, Daqing Ma
Clinical evidence indicated a possible link between renal injury and remote liver injury. Herein, we investigated whether extracellular histone mediates remote hepatic damage following renal graft ischemia-reperfusion injury, whilst vascular endothelial growth factor (VEGF) is protective against remote hepatic injury. In vitro, hepatocyte HepG2 cultures were treated with histone. In vivo, the Brown-Norway renal graft was stored in 4°C preserving solution for 24 hours and then transplanted into Lewis rat recipient; blood samples and livers from recipients were harvested 24 hours after surgery...
February 15, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29446001/canakinumab-treatment-in-renal-transplant-recipients-with-familial-mediterranean-fever
#13
Tolga Yildirim, Rahmi Yilmaz, Muge Uzerk Kibar, Yunus Erdem
Colchicine is the first-line treatment for familial Mediterranean fever (FMF), preventing both inflammatory attacks as well as the development of amyloidosis in the majority of the patients. However approximately 5-10% of patients are colchicine resistant/intolerant. Side effects of colchicine are more prominent in renal transplant recipients due to interaction with immunosuppressive drugs. Anti-interleukin (IL)-1 drugs (anakinra, canakinumab and rilonacept) have emerged as the most promising drugs in the treatment of colchicine-resistant and/or intolerant FMF...
February 14, 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/29445491/the-skin-kidney-connection-bullous-pemphigoid-associated-with-acute-allograft-rejection-and-membranous-nephropathy
#14
Abhilash Koratala, William L Clapp, Olanrewaju A Olaoye, Alfonso H Santos
Bullous pemphigoid has been linked to allograft rejection, as well as membranous nephropathy in renal transplant recipients. Although there is a possibility of multiple distinct autoimmune processes, immune stimulation induced by allograft rejection or antibasement zone antibody interactions are possible mechanisms for the simultaneous skin and renal involvement.
February 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29444881/ischaemic-stroke-haemorrhage-and-mortality-in-older-patients-with-chronic-kidney-disease-newly-started-on-anticoagulation-for-atrial-fibrillation-a-population-based-study-from-uk-primary-care
#15
Shankar Kumar, Simon de Lusignan, Andrew McGovern, Ana Correa, Mariya Hriskova, Piers Gatenby, Simon Jones, David Goldsmith, A John Camm
OBJECTIVE: To assess the association between anticoagulation, ischaemic stroke, gastrointestinal and cerebral haemorrhage, and all cause mortality in older people with atrial fibrillation and chronic kidney disease. DESIGN: Propensity matched, population based, retrospective cohort analysis from January 2006 through December 2016. SETTING: The Royal College of General Practitioners Research and Surveillance Centre database population of almost 2...
February 14, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29444616/endovascular-treatment-of-cerebral-aneurysm-after-renal-transplantation-in-polycystic-kidney-disease
#16
Zeferino Demartini, Jennyfer Galdino, Gelson L Koppe, Alexandre T Bignelli, Alexandre N Francisco, Luana Am Gatto
Background Patients with polycystic kidney disease have a higher prevalence of intracranial aneurysms and may progress to renal failure requiring transplantation. The endovascular treatment of intracranial aneurysms may improve prognosis, since rupture often causes premature death or disability, but the nephrotoxicity risk associated with contrast medium must be always considered in cases of renal impairment. Methods A 55-year-old female patient with polycystic kidney disease and grafted kidney associated with anterior communicant artery aneurysm was successfully treated by embolization...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29444290/impact-of-renal-allograft-nephrectomy-on-graft-and-patient-survival-following-retransplantation-a-systematic-review-and-meta-analysis
#17
Jinwen Lin, Rending Wang, Ying Xu, Jianghua Chen
Background: It is not clear whether renal allograft removal affects the outcome of renal retransplantation. This study aimed to determine the effect of allograft nephrectomy (AN) and no-AN (No AN) on renal retransplantation. Methods: A systematic review and meta-analysis were conducted using MEDLINE, Embase and the Cochrane Library. Observational studies or randomized controlled trials including renal retransplantation recipients with AN or No-AN were included. The primary outcomes were graft survival, patient survival, acute rejection (AR) and delayed graft dysfunction; the secondary outcomes were positive panel reactive antibody rate and serum creatinine level at 1 year after retransplantation, cold ischemia time and time of hemodialysis before recent transplantation...
February 12, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29444269/association-of-angiotensin-ii-type-1-receptor-antibodies-with-graft-histology-function-and-survival-in-paediatric-renal-transplant-recipients
#18
Alexander Fichtner, Caner Süsal, Claudia Schröder, Britta Höcker, Susanne Rieger, Rüdiger Waldherr, Jens H Westhoff, Anja Sander, Duska Dragun, Burkhard Tönshoff
Background: We analysed in a carefully phenotyped cohort of paediatric patients the association of serum angiotensin II type 1 receptor antibodies (AT1R-Ab) with specific histological lesions and with graft function and survival in conjunction with overall and complement-binding donor-specific human leucocyte antigen donor-specific antibodies (HLA-DSA). Methods: Sera of 62 patients at the time of renal graft biopsy for clinical indication >1 year post-transplant were assessed for AT1R-Ab by enzyme-linked immunosorbent assay (ELISA) and for DSA and C1q-fixing DSA by single-antigen bead technology...
February 12, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29443827/a-comparison-of-hla-molecular-mismatch-methods-to-determine-hla-immunogenicity
#19
C Wiebe, V Kosmoliaptsis, D Pochinco, C Taylor, P Nickerson
BACKGROUND: Antibody-mediated rejection is a major cause of premature graft loss in kidney transplantation. Multiple scoring systems are available to assess the HLA mismatch between donors and recipients at the molecular level, however, their correlation with the development of de novo donor-specific antibody (dnDSA) has not been compared in recipients on active immunosuppression. METHODS: HLA-DRβ1/3/4/5/DQα1β1 molecular mismatch was determined using eplet analysis, amino acid mismatch, and electrostatic mismatch for 596 renal transplant recipients and correlated with HLA-DR/DQ dnDSA development...
February 13, 2018: Transplantation
https://www.readbyqxmd.com/read/29443761/haemolytic-uremic-syndrome-due-to-infection-with-adenovirus-a-case-report-and-literature-review
#20
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Haemolytic-uremic syndrome is a rare but serious complication of bacterial and viral infections, which is characterized by the triad of: acute renal failure, microangiopathic haemolytic anemia and thrombocytopenia, sometimes severe, requiring peritoneal dialysis. In Europe, hemolytic-uremic syndrome (HUS) in paediatric pathology is primarily caused by Shiga toxin-producing Escherichia coli (STEC) O157, followed by O26. Beside these etiologies, there are other bacterial and viral infections, and also noninfectious ones that have been associated to lead to HUS as well: in the progression of neoplasia, medication-related, post-transplantation, during pregnancy or associated with the antiphospholipid syndrome, systemic lupus erythematosus or family causes with autosomal dominant or recessive inheritance...
February 2018: Medicine (Baltimore)
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