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chronic allograft nephropathy

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https://www.readbyqxmd.com/read/29754702/evaluating-renal-transplant-status-using-viscoelastic-response-visr-ultrasound
#1
Md Murad Hossain, Mallory R Selzo, Robert M Hinson, Leslie M Baggesen, Randal K Detwiler, Wui K Chong, Lauren M Burke, Melissa C Caughey, Melrose W Fisher, Sonya B Whitehead, Caterina M Gallippi
Chronic kidney disease is most desirably and cost-effectively treated by renal transplantation, but graft survival is a major challenge. Although irreversible graft damage can be averted by timely treatment, intervention is delayed when early graft dysfunction goes undetected by standard clinical metrics. A more sensitive and specific parameter for delineating graft health could be the viscoelastic properties of the renal parenchyma, which are interrogated non-invasively by Viscoelastic Response (VisR) ultrasound, a new acoustic radiation force (ARF)-based imaging method...
May 10, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29731924/the-spectrum-of-histopathological-changes-in-the-renal-allograft-a-12-months-protocol-biopsy-study
#2
Galina Severova-Andreevska, Ladislava Grcevska, Gordana Petrushevska, Koco Cakalaroski, Aleksandar Sikole, Olivera Stojceva-Taneva, Ilina Danilovska, Ninoslav Ivanovski
INTRODUCTION: Renal transplantation became a routine and successful medical treatment for Chronic Kidney Disease in the last 30 years all over the world. Introduction of Luminex based Single Antigen Beads (SAB) and recent BANFF consensus of histopathological phenotypes of different forms of rejection enables more precise diagnosis and changes the therapeutic approach. The graft biopsies, protocol or cause, indicated, remain a golden diagnostic tool for clinical follow up of kidney transplant recipients (KTR)...
April 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29730854/renal-involvement-in-antiphospholipid-syndrome
#3
REVIEW
Francisco Vileimar Andrade de Azevedo, Diego Germano Maia, Jozelio Freire de Carvalho, Carlos Ewerton Maia Rodrigues
This is a review of scientific publications on renal involvement in antiphospholipid syndrome (APS), with focus on clinical and histopathological findings and treatment. A search for English-language articles on renal involvement in APS covering the period 1980-2017 was conducted in Medline/PubMed and Scopus databases using the MeSH terms "antiphospholipid syndrome", "antiphospholipid antibodies", "glomerulonephritis" and "thrombotic microangiopathy" (TMA). APS nephropathy is primarily the result of thromboses in renal arteries or veins, intraparenchymatous arteries and glomerular capillaries...
May 5, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29725635/vascular-endothelial-growth-factor-gene-polymorphism-is-associated-with-long-term-kidney-allograft-outcomes
#4
Swayam Prakash, Manas Ranjan Patel, Suraksha Agrawal, Rahul M Jindal, Narayan Prasad
Introduction: Vascular endothelial growth factor (VEGF) regulates vasculogenesis in physiological and pathological states. We evaluated the role of VEGF single-nucleotide polymorphisms (SNPs) -1154 G/A, -2578 C/A, +936 C/T, and -2549 Ins/Del in chronic allograft nephropathy. Methods: Blood samples were collected before renal transplantation, and DNA was extracted. Genotyping of VEGF SNPs -1154 G/A (rs1570360), -2578 C/A (rs699947), +936 C/T (rs112005313), and -2549 Ins/Del (18bpindel) polymorphisms were carried out...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29725592/urinary-virome-perturbations-in-kidney-transplantation
#5
Tara K Sigdel, Neil Mercer, Sharvin Nandoe, Carrie D Nicora, Kristin Burnum-Johnson, Wei-Jun Qian, Minnie M Sarwal
The human microbiome is important for health and plays a role in essential metabolic functions and protection from certain pathogens. Conversely, dysbiosis of the microbiome is seen in the context of various diseases. Recent studies have highlighted that a complex microbial community containing hundreds of bacteria colonizes the healthy urinary tract, but little is known about the human urinary viruses in health and disease. To evaluate the human urinary virome in the context of kidney transplantation (tx), variations in the composition of the urinary virome were evaluated in urine samples from normal healthy volunteers as well as patients with kidney disease after they had undergone kidney tx...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29725116/validation-of-systems-biology-derived-molecular-markers-of-renal-donor-organ-status-associated-with-long-term-allograft-function
#6
Paul Perco, Andreas Heinzel, Johannes Leierer, Stefan Schneeberger, Claudia Bösmüller, Rupert Oberhuber, Silvia Wagner, Franziska Engler, Gert Mayer
Donor organ quality affects long term outcome after renal transplantation. A variety of prognostic molecular markers is available, yet their validity often remains undetermined. A network-based molecular model reflecting donor kidney status based on transcriptomics data and molecular features reported in scientific literature to be associated with chronic allograft nephropathy was created. Significantly enriched biological processes were identified and representative markers were selected. An independent kidney pre-implantation transcriptomics dataset of 76 organs was used to predict estimated glomerular filtration rate (eGFR) values twelve months after transplantation using available clinical data and marker expression values...
May 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29694721/hepatitis-c-virus-infection-in-kidney-transplantation-changing-paradigms-with-novel-agents
#7
REVIEW
Yuvaram N V Reddy, David Nunes, Vipul Chitalia, Craig E Gordon, Jean M Francis
Hepatitis C virus (HCV) is a common cause of increased morbidity and mortality in kidney transplant patients. It is associated with posttransplant glomerulonephritis, chronic allograft nephropathy, and New Onset Diabetes after Transplant (NODAT). In the past, HCV was difficult to treat due to the presence of interferon alpha-based therapies that were difficult to tolerate and were associated with adverse side-effects, such as the risk of rejection. With the advent of oral directly acting antiviral therapies, the landscape for HCV and transplantation has changed...
April 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29688849/cryptococcoma-of-a-transplanted-kidney-in-a-patient-presenting-with-recurrent-urinary-tract-infection-a-case-report
#8
Albert Z Muranda, Ludolf Greeff, Mike M Sathekge, Thabo Lengano, Victor O L Karusseit
BACKGROUND: Cryptococcosis is an important opportunistic infection of organ transplant recipients. It is the third most common fungal infection of transplant patients and occurs especially in kidney recipients. Cryptococcus neoformans is a ubiquitous fungus which infects humans by inhalation of spores. C. gattii has more recently been recognised as a pathogen. Infection commonly is disseminated affecting mainly the central nervous system and the lungs. Cryptococcoma, a localised form of the disease, has been described in various organs...
April 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29579824/peripheral-blood-regulatory-t-cells-are-diminished-in-kidney-transplant-patients-with-chronic-allograft-nephropathy
#9
M A Carmona-Escamilla, G Queipo, L A García-Mosqueda, L García-Covarrubias, M A Fonseca-Sánchez, E Villanueva-Ortega, P Prieto, R Lascurain
BACKGROUND: Our aim in this study was to assess peripheral blood CD4+ CD25+ FOXP3+ regulatory T cell (Treg) levels in patients with chronic allograft nephropathy (CAN) 1 year after kidney transplantation. METHODS: Twelve renal transplant patients with an initial onset of CAN, 12 patients with chronic kidney disease (CKD) stage G5 on dialysis, and 13 healthy control individuals were evaluated regarding the proportion of Tregs in their peripheral blood via flow cytometry...
March 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29539614/methods-of-blood-oxygen-level-dependent-magnetic-resonance-imaging-analysis-for-evaluating-renal-oxygenation
#10
Fen Chen, Shulin Li, Dong Sun
Blood oxygen level-dependent magnetic resonance imaging (BOLD MRI) has recently been utilized as a noninvasive tool for evaluating renal oxygenation. Several methods have been proposed for analyzing BOLD images. Regional ROI selection is the earliest and most widely used method for BOLD analysis. In the last 20 years, many investigators have used this method to evaluate cortical and medullary oxygenation in patients with ischemic nephropathy, hypertensive nephropathy, diabetic nephropathy, chronic kidney disease (CKD), acute kidney injury and renal allograft rejection...
March 8, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29528010/de-novo-thrombotic-microangiopathy-in-renal-transplant-patients
#11
B Handan Özdemir, Alev Ok Atılgan, Eda Yılmaz Akçay, Gökçe Özdemir, Ebru Ayvazoğlu Soy, Aydıncan Akdur, Mehmet Haberal
OBJECTIVES: Thrombotic microangiopathy is a form of renal capillary injury possibly associated with calcineurin inhibitor toxicity, acute humoral rejection, infections, and recurrent diseases. Here, we examined its incidence in patients diagnosed with acute and chronic active humoral rejection, polyomavirus nephropathy, acute cellular rejection, and immunoglobulin A recurrence. MATERIALS AND METHODS: In total, 272 renal allograft recipients who met the inclusion criteria were reevaluated for presence of renal thrombotic microangiopathy...
March 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29527984/surgical-challenge-in-pediatric-kidney-transplant-vascular-anastomosis
#12
Atsushi Aikawa, Masaki Muramatsu, Yusuke Takahashi, Yuko Hamasaki, Junya Hashimoto, Mai Kubota, Takeshi Kawamura, Yoshihiro Itabashi, Yoiji Hyodou, Seiichiro Shishido
During pediatric kidney transplant, surgical challenges occasionally occur. In particular, vascular anastomosis should be considered for children with small body weight < 12 kg, multiple renal arteries, vascular anomaly, and inferior vena cava occlusion. In pediatric patients, a living-donor renal graft is usually donated from a parent. Therefore, the renal artery and vein are too large to be anastomosed with the recipient's internal iliac artery and external iliac vein. In children who are > 12 kg, the renal artery and vein could be anastomosed with the external iliac artery and the external iliac vein...
March 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29429249/-the-roles-of-il-17-and-cxcr4-in-chronic-allograft-nephropathy-in-rat-models
#13
W Wang, Y Xu, W J Jiao, S Zeng, B H Fan, H Yin, X P Hu, X D Zhang
Objective: To investigate the role and mechanism of IL-17 and CXCR4 in chronic graft nephropathy (CAN) in rat models. Methods: CAN rat models were established using Fisher 344 to Lewis rats. In the control group( n =10), Lewis rats were performed isotransplantation. CAN rat models were established in experimental group( n =10). All the rats were havested 6 weeks after transplantation. Kidneys were examined by pathology to evaluate the injury of the renal allograft. SDF-1/CXCR4, IL-17 and α-SMA expression level in serum and renal graft were detected by immunohistochemical staining and Enzyme-linked immunosorbent assays(ELISA)...
January 30, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29341372/renal-transplantation-in-children-under-3%C3%A2-years-of-age-experience-from-a-single-center-study
#14
Yann Loiseau, Justine Bacchetta, Amna Klich, Bruno Ranchin, Delphine Demede, Audrey Laurent, Florent Baudin, Florentine Garaix, Pascal Roy, Pierre Cochat
RTx remains challenging in children under 3 years of age. This single-center study reviewed the medical records of children <3 years transplanted since 1987 (N = 32, Group 1). They were matched for donor type and RTx period with children aged 3-13 years (N = 32, Group 2) and 13-18 years (N = 32, Group 3). There were no between-group significant differences regarding distributions of gender, primary renal disease, proportion of dialysis before RTx, and growth (SDS). Compared to Groups 2 and 3, Group 1 had more peritoneal dialyses (P < ...
January 17, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29310811/effect-of-renin-angiotensin-system-inhibitors-on-survival-in-kidney-transplant-recipients-a-systematic-review-and-meta-analysis
#15
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/29285170/hmgb1-tgf-%C3%AE-and-nf-%C3%AE%C2%BAb-are-associated-with-chronic-allograft-nephropathy
#16
Shi-Qi Zhao, Zhen-Zhen Xue, Ling-Zhang Wang
The present study aimed to investigate the association between high mobility group protein B1 (HMGB1), transforming growth factor-β1 (TGF-β1), nuclear factor-κB (NF-κB) and chronic allograft nephropathy (CAN) and to identify the clinical significance of HMGB1, TGF-β1, NF-κB on patients with CAN. Between September 2012 and November 2014, 27 patients with CAN diagnosed by biopsy were enrolled in the present study and a further 30 patients that underwent nephrectomy following trauma were selected as the control group...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29229189/immunoproteasome-inhibition-prevents-chronic-antibody-mediated-allograft-rejection-in-renal-transplantation
#17
Jun Li, Michael Basler, Gerardo Alvarez, Thomas Brunner, Christopher J Kirk, Marcus Groettrup
Chronic antibody-mediated rejection is the major cause of fading allograft function and loss after renal transplantation. Currently, pharmacological agents for the suppression of chronic antibody-mediated rejection are lacking. Non-selective proteasome inhibitors suppress antibody-mediated allograft rejection. However, extensive adverse side effects of these inhibitors severely limit their application. In contrast, immunoproteasome inhibition is effective in preclinical models of autoimmune diseases and was applied over weeks without obvious adverse side effects...
March 2018: Kidney International
https://www.readbyqxmd.com/read/29226570/campath-calcineurin-inhibitor-reduction-and-chronic-allograft-nephropathy-the-3c-study-results-of-a-randomized-controlled-clinical-trial
#18
(no author information available yet)
Calcineurin inhibitors (CNIs, eg, tacrolimus) reduce short-term kidney transplant failure, but chronic nephrotoxicity may contribute to late transplant loss. Elective conversion to inhibitors of the mammalian target of rapamycin (mTOR, eg, sirolimus) pathway might avoid long-term CNI renal damage and improve outcomes. The 3C Study was a pragmatic randomized controlled trial of sequential randomizations between alemtuzumab and basiliximab induction therapy (at the time of surgery) and between tacrolimus and sirolimus maintenance therapy at 6 months posttransplantation...
December 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29208861/etiology-of-early-renal-allograft-dysfunction-and-comparison-between-dysfunction-and-function-group-a-single-center-study
#19
K M Hadiuzzaman, S F Islam, M O Faroque, R M Hossain, M Munirunnessa, S I Selim, M Morshed
Over a period of two years thirty five renal allograft recipients & donors were evaluated to find out the aetiology of early renal allograft dysfunction, in the Department of Nephrology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh from March 2010 to February 2012. A comparison was made between dysfunction & functioning graft group. Mean age of recipients were (36.4±9.4) years, mean age of donors were (41.7±8.3) years, with a male and female ratio of 3:1. Fifty percent recipients showed one heliotype match, ninety percent recipients were anti CMV antibody IgG positive, few were anti CMV antibody IgM positive...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29198660/utility-of-oxford-classification-in-post-transplant-immunoglobulin-a-nephropathy
#20
V Agrawal, A Singh, A Kaul, R Verma, M Jain, R Pandey
BACKGROUND: With increasing graft survival, post-transplant immunoglobulin A nephropathy (IgAN) has emerged as an important cause of chronic graft dysfunction in renal allograft recipients. We studied the clinico-pathological features of post-transplant IgAN regardless of the primary disease. The aim was to study the usefulness of the Oxford classification in predicting survival. METHODS: Indication graft biopsy specimens (n = 915) were received during a 10-year period; 27 biopsy specimens from 22 patients were diagnosed as IgAN...
December 2017: Transplantation Proceedings
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