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graft rejection

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https://www.readbyqxmd.com/read/29352737/bronchiolitis-obliterans-syndrome-is-associated-with-increased-p-glycoprotein-expression-and-loss-of-glucocorticoid-receptor-from-steroid-resistant-pro-inflammatory-cd8-t-cells
#1
Greg Hodge, Sandra Hodge, Phan Tien Nguyen, Aeneas Yeo, Parama Sarkar, Arash Badiei, C L Holmes-Liew, Paul N Reynolds, Mark Holmes
Immunosuppressive therapy fails to suppress the production of pro-inflammatory cytokines, particularly by CD8+T cells, in stable lung transplant recipients and those undergoing chronic rejection, suggesting that some patients may become relatively resistant to immunosuppressants such as glucocorticoids (GC). We have shown loss of GC receptor (GCR) from the CD8+ cells, and we hypothesized that the drug membrane efflux pump, p-glycoprotein-1 (Pgp), may also be involved in lymphocyte steroid resistance following lung transplant...
January 20, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29352109/role-of-b-and-t-lymphocyte-attenuator-in-renal-transplant-recipients-with-biopsy-proven-acute-rejection
#2
Zijie Wang, Haiwei Yang, Xuzhong Liu, Jingying Zhang, Zhijian Han, Jun Tao, Chunchun Zhao, Xiaobin Ju, Ruoyun Tan, Min Gu
BACKGROUND Acute rejection is a common predisposing cause of allograft dysfunction in kidney transplantation. Recently, the B and T lymphocyte attenuator (BTLA)/herpes virus entry mediator (HVEM)/lymphotoxin (LIGHT)/CD160 pathway was found to be potentially involved in the regulation of T cell activation. This could mean that this pathway is involved in graft rejection in kidney transplantation; the present study aimed to explore this possibility. MATERIAL AND METHODS The expression of BTLA, HVEM, LIGHT and CD160 on peripheral CD4+, CD8+ and CD19+ lymphocytes were analyzed by flow cytometry in recipients with biopsy-proven acute rejection (BPAR) or stable allograft function, as well as in healthy volunteers...
January 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29350771/recombinant-relaxin-protects-liver-transplants-from-ischemia-damage-via-hepatocyte-glucocorticoid-receptor-from-bench-to-bedside
#3
Shoichi Kageyama, Kojiro Nakamura, Takehiro Fujii, Bibo Ke, Rebecca A Sosa, Elaine F Reed, Nakul Datta, Ali Zarrinpar, Ronald W Busuttil, Jerzy W Kupiec-Weglinski
Hepatic ischemia-reperfusion injury (IRI) represents a major risk factor of early graft dysfunction and acute/chronic rejection as well as a key obstacle to expanding the donor pool in orthotopic liver transplantation (OLT). Although glucocorticoid receptor (GR) signaling may enhance cytoprotective programs, clinical use of glucocorticoid is limited due to adverse effects, while clinical relevance of GR-facilitated cytoprotection in OLT remains unknown. We aimed to evaluate the significance of hepatic GR in clinical OLT and verify the impact of recombinant human relaxin (rhRLX), which may function as GR agonist in tissue/disease-specific manner...
January 19, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29346257/association-of-cold-ischemia-time-with-acute-renal-transplant-rejection
#4
Merve Postalcioglu, Arnaud D Kaze, Benjamin C Byun, Andrew Siedlecki, Stefan G Tullius, Edgar L Milford, Julie M Paik, Reza Abdi
BACKGROUND: Kidney transplantation holds much promise as a treatment of choice for patients with end stage kidney disease. The impact of cold ischemia time (CIT) on acute renal transplant rejection (ARTR) remains to be fully studied in a large cohort of renal transplant patients. METHODS: From the Organ Procurement and Transplantation Network database, we analyzed 63,798 deceased donor renal transplants performed between 2000-2010. We assessed the association between CIT and ARTR...
January 18, 2018: Transplantation
https://www.readbyqxmd.com/read/29344912/capillary-leak-syndrome-as-a-complication-of-antibody-mediated-rejection-treatment-a-case-report
#5
Juan C Ramirez-Sandoval, Ricardo Varela-Jimenez, Luis E Morales-Buenrostro
We report a case of capillary leak that developed during treatment of antibody-mediated rejection in a kidney transplant recipient. A 53-year-old female transplant recipient experienced an increase in serum creatinine from 1.1 to 1.8 mg/dL. Antibody-mediated rejection was diagnosed by graft biopsy. She was treated with five plasmapheresis sessions (on alternate days with albumin replacement), five doses of immunoglobulin (5 g/dose at 100 mg/kg), a single dose of rituximab (500 mg), and four doses of bortezomib on days 1, 4, 7, and 10 (1...
January 17, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29343525/lack-of-remuscularization-following-transplantation-of-human-embryonic-stem-cell-derived-cardiovascular-progenitor-cells-in-infarcted-nonhuman-primates
#6
Keyang Zhu, Qiang Wu, Cheng Ni, Peng Zhang, Zhiwei Zhong, Yan Wu, Yingchao Wang, Yinchuan Xu, Minjian Kong, Haifeng Cheng, Zhihua Tao, Qian Yang, He Liang, Yun Jiang, Qingju Li, Jing Zhao, Jijun Huang, Fengjiang Zhang, Qi Chen, Yi Li, Jinghai Chen, Wei Zhu, Hong Yu, Jianyi Zhang, Huang-Tian Yang, Xinyang Hu, Jian'an Wang
Rationale: Human pluripotent stem cell-derived cardiovascular progenitor cells (hPSC-CVPCs) should be thoroughly investigated in large animal studies before testing in clinical trials. Objective: To clarify if hPSC-CVPCs can engraft for long time in the heart of primates after myo-cardial infarction (MI) and compare the effectiveness and safety of immunosuppression with cy-closporine alone or multiple-drug regimen (MDR) containing cyclosporine, methylprednisolone, and Simulect in cynomolgous monkeys that had received intramyocardial injections of 1×107 EGFP-expressing hPSC-CVPCs after MI...
January 17, 2018: Circulation Research
https://www.readbyqxmd.com/read/29343314/cell-free-dna-the-role-in-pathophysiology-and-as-a-biomarker-in-kidney-diseases
#7
Peter Celec, Barbora Vlková, Lucia Lauková, Janka Bábíčková, Peter Boor
Cell-free DNA (cfDNA) is present in various body fluids and originates mostly from blood cells. In specific conditions, circulating cfDNA might be derived from tumours, donor organs after transplantation or from the foetus during pregnancy. The analysis of cfDNA is mainly used for genetic analyses of the source tissue -tumour, foetus or for the early detection of graft rejection. It might serve also as a nonspecific biomarker of tissue damage in critical care medicine. In kidney diseases, cfDNA increases during haemodialysis and indicates cell damage...
January 18, 2018: Expert Reviews in Molecular Medicine
https://www.readbyqxmd.com/read/29343027/-using-creatinine-reduction-ratio-as-a-predictor-for-delayed-graft-function-of-kindey-transplant-recipients-from-donor-of-cardiac-death
#8
Z J Sun, X D Zhang, L Ren, X Y Yang, J F Cai, X Li, X Zheng, W Wang
Objective: To explore the relationship between creatinine reduction ratio (CRR) and delayed graft function among kidney transplant recipients from donor of cardiac death (DCD). To define the value of CRR to predict delayed graft function (DGF) in early post-transplant period. Method: 86 patients were included, who received renal transplantation from DCD during Jan 1(st) 2011 to Jun 30(th) 2016. We performed a retrospective study and collected creatinine data within 3 days post-operation and marked them with Cr1, Cr2 , Cr3, and then calculated creatinine reduction ratio day-2 (CRR 2) =(Cr1-Cr2)/Cr1×100% and creatinine reduction ratio day-3 (CRR 3)=[(Cr1-Cr2)/Cr1+ (Cr2-Cr3)/Cr2]/2×100%...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29341290/early-failure-of-kidney-transplants-in-the-current-era-a-national-cohort-study
#9
Ilkka Helanterä, Juulia Räihä, Patrik Finne, Marko Lempinen
Although short-term outcome after kidney transplantation has improved, a small proportion of grafts are lost during the first year. We characterize in detail all early graft losses in the current era in a nationwide cohort of kidney transplant recipients. Altogether 2447 kidney transplantations, performed between June 2004 and October 2016, were included. All graft losses (return to dialysis or patient death) occurring during the first posttransplant year were characterized. During the first posttranplant year altogether 109 grafts were lost, 67 grafts failed, and 42 patients died...
January 16, 2018: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29337457/-pharmacovigilance-update
#10
Françoise Livio
The main pharmacovigilance updates in 2017 are reviewed. Denosumab : rebound-associated multiple vertebral fractures after discontinuation. Canagliflozine: increased risk of foot/leg amputations. Biologic and targeted cancer therapies, direct-acting antivirals for chronic hepatitis C: risk of hepatitis B reactivation. Checkpoint inhibitors : immune-related adverse events and graft rejection. Fingolimod : rebound-associated reactivation of MS following withdrawal. Daclizumab: risk of severe liver injury leading to restricted use in MS patients...
January 10, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29337451/-nephrology
#11
Sophie De Seigneux, Belen Ponte, Karine Hadaya, Yassine Bouatou, Patrick Saudan
New antidiabetic drugs which slow effectively the course of diabetic nephropathy are now available. There is no benefit of prophylactic hydratation to prevent contrast nephropathy in patients with moderate chronic kidney disease. In elderly hemodialysis patients, hemodiafiltration seems better tolerated than conventional hemodialysis, although there is a similar dialysis-induced myocardial stress with both methods. Role of de novo donor-specific antibodies is better characterized, which may subsequently lead to new treatments of graft rejection...
January 10, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29335485/electron-beam-melting-in-the-fabrication-of-three-dimensional-mesh-titanium-mandibular-prosthesis-scaffold
#12
Rongzeng Yan, Danmei Luo, Haitao Huang, Runxin Li, Niu Yu, Changkui Liu, Min Hu, Qiguo Rong
The study was designed to fulfill effective work-flow to fabricate three-dimensional mesh titanium scaffold for mandibular reconstruction. The 3D titanium mesh scaffold was designed based on a volunteer with whole mandible defect. (1) acquisition of the CT data; (2) design with computer aided design (CAD) and finite element analysis (FEA). The pore size and intervals with the best mechanic strength was also calculated using FEA. (3) fabrication of the scaffold using electron beam melting (EBM); (4) implantation surgery...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29335397/pediatric-renal-transplantation-focus-on-current-transition-care-and-proposal-of-the-rise-to-transition-protocol
#13
Rupesh Raina, Joseph Wang, Vinod Krishnappa, Maria Ferris
The transition from pediatric to adult medical services is an important time in the life of an adolescent or young adult with a renal transplant. Failure of proper transition can lead to medical non-adherence and subsequent loss of graft and/or return to dialysis. The aim of this study was to conduct a systematic review and survey to assess the challenges and existing practices in transition of renal transplant recipient children to adult services, and to develop a transition protocol. We conducted a literature review and performed a survey of pediatric nephrologists across the United States to examine the current state of transition care...
January 16, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29334529/midterm-outcome-of-kidney-transplantation-from-donors-with-thin-basement-membrane-nephropathy
#14
Chanjoong Choi, Sanghyun Ahn, Seung-Kee Min, Jongwon Ha, Curie Ahn, Yonsu Kim, Hajeong Lee, Sang-Il Min
BACKGROUND: Thin basement membrane nephropathy (TBMN) is the most common cause of persistent glomerular hematuria. Most individuals with TBMN show a benign course, although it can be difficult to distinguish it from early stages of progressive renal diseases. However, only limited studies address the prognosis of donors with TBMN and their recipients. METHODS: From 2007 to 2016, 11 recipients received kidney grafts from donors with TBMN, and their clinical data were analyzed retrospectively...
January 12, 2018: Transplantation
https://www.readbyqxmd.com/read/29334522/themes-in-literature-related-to-incidence-risk-and-prevention-of-cancer-in-solid-organ-transplantation-recipients-on-immunosuppressive-therapy
#15
Stefanie L Rashti
BACKGROUND: Solid-organ transplants provide a second chance to thousands of critically ill patients with end-organ failure each year. Immunosuppressants are administered to patients to prevent graft rejection of a transplanted organ, such as a heart, kidney, or liver, while placing the recipient at greater risk for infection and cancer. OBJECTIVE: The literature provides evidence of various cancers that have been found to develop in patients' posttransplantation...
January 12, 2018: Cancer Nursing
https://www.readbyqxmd.com/read/29332627/pre-transplant-history-of-mental-health-concerns-non-adherence-and-post-transplant-outcomes-in-kidney-transplant-recipients
#16
Franz Marie Gumabay, Marta Novak, Aarushi Bansal, Margot Mitchell, Olusegun Famure, S Joseph Kim, Istvan Mucsi
OBJECTIVE: The association between pre-transplant mental health concerns and non-adherence and post-transplant outcomes after kidney transplantation is not fully established. We examined the relationship between a pre-transplant history of mental health concerns and non-adherence and post-transplant outcomes among kidney transplant recipients. METHODS: In this retrospective single center cohort study of adult kidney transplant recipients (n=955) the associations between the history of mental health concerns or non-adherence and the time from kidney transplant to biopsy proven acute rejection; death-censored graft failure and total graft failure were examined using Cox proportional hazards models...
February 2018: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/29331505/successful-treatment-of-anti-angiotensin-ii-type-1-receptor-antibody-associated-rejection-in-kidney-transplantation-a-case-report
#17
P Wiwattanathum, A Ingsathit, D Thammanichanond, S Worawichawong
Angiotensin II type 1 receptor (AT1R) antibody, a non-HLA antibody, has been found to have a detrimental effect on kidney allografts. Similarly to HLA antibodies, recipients who have AT1R antibodies are at risk for allograft rejection and poor long-term graft outcome. Besides mediating allograft rejections via direct effects on endothelial and vascular smooth muscle without complement activation, AT1R antibodies may lead to accelerated hypertension via the renin-angiotensin pathway. There has been no definite level of AT1R antibody that predicts allograft rejection...
January 10, 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29331397/persistent-hyperparathyroidism-as-a-risk-factor-for-long-term-graft-failure-the-need-to-discuss-indication-for-parathyroidectomy
#18
Maria Júlia Correia Lima Nepomuceno Araujo, Janaina Almeida Mota Ramalho, Rosilene Motta Elias, Vanda Jorgetti, William Nahas, Melani Custodio, Rosa M A Moysés, Elias David-Neto
BACKGROUND: Although a successful kidney transplant (KTx) improves most of the mineral and bone disorders (MBD) produced by chronic kidney disease (CKD), hyperparathyroidism may persist (pHPT). Current guidelines recommend parathyroidectomy if serum parathormone is persistently elevated 1 year after KTx, because pHPT has been recently associated with poor graft outcomes. However, whether patients with pHPT and adequate renal function are at risk for long-term graft failure is unknown...
January 10, 2018: Surgery
https://www.readbyqxmd.com/read/29330111/soluble-major-histocompatibility-complex-class-i-related-chain-a-smica-levels-influence-graft-outcome-following-renal-transplantation
#19
Ajay K Baranwal, Sanjeev Goswami, Deepali K Bhat, Gurvinder Kaur, Sanjay K Agarwal, Narinder K Mehra
BACKGROUND: Since soluble isoforms of MICA play an important role in modulating the immune response, we evaluated a possible correlation between their levels and development of acute rejection following renal transplantation. METHODS: Serum samples collected at pre- and different time points posttransplant from 137 live related donor renal transplant recipients were evaluated retrospectively for sMICA levels and for the presence of MICA antibodies. Samples from 30 healthy volunteers were also tested as controls...
January 9, 2018: Human Immunology
https://www.readbyqxmd.com/read/29327261/chronic-rejection-after-intestinal-transplant-where-are-we-in-order-to-avert-it
#20
REVIEW
Augusto Lauro, Mihai Oltean, Ignazio R Marino
Chronic rejection affects the long-term survival of all solid organ transplants and, among intestinal allografts, occurs in up to 10% of the recipients. The insidious clinical evolution of the chronic allograft enteropathy, the absence of noninvasive biomarkers, and the late endoscopic findings delay its diagnosis. No pharmacological approach has been proven effective, and allograft removal nowadays still represents the only available therapy. The inclusion of the liver in the visceral allograft appears to be the only intervention affecting the development of chronic rejection, as revealed by large-center studies and registry reports...
January 11, 2018: Digestive Diseases and Sciences
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