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chronic renal allograft dysfunction

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https://www.readbyqxmd.com/read/28982622/retroperitoneal-compartment-syndrome-in-renal-transplantation-how-to-salvage-the-graft
#1
Karen Pineda-Solís, Wen Yan Xie, Vivian McAlister, Alp Sener, Patrick P Luke
OBJECTIVE: Early allograft dysfunction may be caused by several technical factors including vascular complications such as thrombosis, kinking, or extrinsic compression. Renal allograft compartment syndrome (RACS) is an unrecognized cause of early allograft dysfunction. This complication is characterized by increased pressure of the iliac fossa that reduces the blood supply to the graft with a potentially devastating consequence. The main objective when recognizing this condition is to create a tension-free muscle closure...
September 2017: Urology
https://www.readbyqxmd.com/read/28969763/peri-and-postsurgical-evaluations-of-renal-transplant
#2
REVIEW
Belkis Erbas
Renal transplantation is the best treatment of choice for patient with chronic renal insufficiency because it provides better quality of life and longer survival. Survival rates for grafts and patients have improved over the recent decades because of significant evolution of surgical techniques and immunosuppressive treatment. However, renal transplantation is still associated with several complications, which may result in poor outcome. Cause of allograft dysfunction, which occurs in the early or late post-transplantation period, should be recognized immediately, so that it can be managed correctly...
November 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28932575/pediatric-lung-transplantation
#3
REVIEW
Christian Benden
Pediatric lung transplantation has been undertaken since the 1980s, and it is today considered an accepted therapy option in carefully selected children with end-stage pulmonary diseases, providing carefully selected children a net survival benefit and improved health-related quality of life. Nowadays, >100 pediatric lung transplants are done worldwide every year. Here, specific pediatric aspects of lung transplantation are reviewed such as the surgical challenge, effects of immunosuppression on the developing pediatric immune system, and typical infections of childhood, as it is vital to comprehend that children undergoing lung transplants present a real challenge as children are not 'just small adults'...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28904437/cryptococcal-infection-in-transplant-kidney-manifesting-as-chronic-allograft-dysfunction
#4
C Agrawal, V Sood, A Kumar, V Raghavan
Invasive fungal infections (IFIs) are a significant cause of morbidity in solid organ transplant (SOT) recipients. Common causes among them are Aspergillus, Candida, and Cryptococcus. Antifungal prophylaxis has led to decrease in overall incidence of IFI; however, there is very little decline in the incidence of Cryptococcal infections of SOT recipients because effective prophylaxis is not available against this infectious agent. Spectrum of manifestation of Cryptococcal infection varies in immunocompetent and immunocompromised host with subclinical and self-limiting with lungs being the primary site in immunocompetent and central nervous system as the most common site in an immunocompromised host...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28904428/collapsing-glomerulopathy-a-troublemaker-for-the-renal-allograft-lessons-learnt
#5
K V Kanodia, A V Vanikar, L K Nigam, R D Patel, K S Suthar, H V Patel, H L Trivedi
Collapsing glomerulopathy (CG) is a well-recognized distinct morphological pattern of proliferative parenchymal injury leading to rapid graft failure. We conducted a single-center retrospective study to evaluate the prevalence, clinicopathological features, and prognosis of CG in renal transplant recepient. We analyzed 2518 renal allograft biopsies performed from 2007 to 2015 and correlated their clinicopathological features. The prevalence of CG was 0.83% (21 out of 2518) of allograft biopsies with a higher prevalence of 1...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28794296/recurrent-aa-amyloidosis-combined-with-chronic-active-antibody-mediated-rejection-after-kidney-transplantation
#6
Min-Kyung Yeo, Young Rok Ham, Song-Yi Choi, Yong-Moon Lee, Moon Hyang Park, Kwang-Sun Suh
Kidney transplantation for amyloidosis remains a contentious issue. Recurrence of amyloidosis is one of the risks of transplantation. Chronic active antibody-mediated rejection is an important cause of chronic allograft dysfunction. A 47-year-old woman underwent kidney transplantation due to renal AA amyloidosis with unknown etiology. Six years posttransplantation, a kidney biopsy showed AA amyloidosis with chronic active antibody-mediated rejection. Donor-specific antibody class II was positive. The patient underwent intravenous plasmapheresis and treatment with rituximab and colchicine...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28757398/high-expression-of-tim-3-and-kim-1-in-blood-and-urine-of-renal-allograft-rejection-patients
#7
Sanaz Keshavarz Shahbaz, Fatemeh Pourrezagholi, Mehri Barabadi, Farshad Foroughi, Morteza Hosseinzadeh, Pedram Ahmadpoor, Mohesn Nafar, Mir Saeed Yekaninejad, Aliakbar Amirzargar
BACKGROUND: T cell immunoglobulin and mucin domain 3 (TIM-3) is involved in alloimmune and autoimmune responses, as well as tolerance induction in kidney transplantation. Kidney injury molecule-1 (KIM-1) is highly expressed in epithelial cells of the injured proximal tubule. In this study, we have investigated both urinary and blood TIM-3 mRNA expressions, urinary KIM-1 mRNA expression, and urinary and serum KIM-1 proteins in renal allograft recipients diagnosed with acute allograft rejection (AR) and chronic allograft dysfunction (CAD), as well as those with well-functioning transplants (WFG)...
July 27, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28709599/recurrence-of-glomerulonephritis-an-underestimated-and-unmet-medical-need
#8
Johan W de Fijter
Recurrent glomerulonephritis is increasingly recognized as an important contributor to premature renal allograft failure. The incidence of recurrent glomerulonephritis varies widely depending on original disease, renal biopsy policy, and time of observation. Biopsy-documented clinical recurrence rates underestimate the true prevalence. The impact of recurrent glomerulonephritis on graft survival parameters also widely varies and requires large collaborative efforts with more detailed and balanced evaluations, such as other major causes for chronic renal allograft dysfunction...
August 2017: Kidney International
https://www.readbyqxmd.com/read/28698834/biomarkers-in-renal-transplantation-an-updated-review
#9
REVIEW
Maurizio Salvadori, Aris Tsalouchos
Genomics, proteomics and molecular biology lead to tremendous advances in all fields of medical sciences. Among these the finding of biomarkers as non invasive indicators of biologic processes represents a useful tool in the field of transplantation. In addition to define the principal characteristics of the biomarkers, this review will examine the biomarker usefulness in the different clinical phases following renal transplantation. Biomarkers of ischemia-reperfusion injury and of delayed graft function are extremely important for an early diagnosis of these complications and for optimizing the treatment...
June 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28691954/maintenance-belatacept-based-immunosuppression-in-lung-transplantation-recipients-who-failed-calcineurin-inhibitors
#10
Carlo J Iasella, Ryan J Winstead, Cody A Moore, Bruce A Johnson, Ayelet T Feinberg, Matthew R Morrell, J W Awori Hayanga, Elizabeth A Lendermon, Adriana Zeevi, John F McDyer, Christopher R Ensor
BACKGROUND: Traditional immunosuppressive regimens (ISR) used in lung transplantation rely on calcineurin inhibitors (CNI) that occasionally cause severe adverse reactions necessitating discontinuation. Belatacept is a novel costimulation antagonist approved for use in renal transplantation which lacks data in lung transplantation. This series aims to describe the response to belatacept ISR in 11 lung transplantation recipients after CNI failure. METHODS: Single center, retrospective medical record review of adult lung transplant recipients (LTR) before and after conversion to belatacept-based ISR...
July 6, 2017: Transplantation
https://www.readbyqxmd.com/read/28665959/increased-migration-of-antigen-presenting-cells-to-newly-formed-lymphatic-vessels-in-transplanted-kidneys-by-glycol-split-heparin
#11
Ditmer T Talsma, Kirankumar Katta, Miriam Boersema, Saritha Adepu, Annamaria Naggi, Giangiacomo Torri, Coen Stegeman, Gerjan Navis, Harry van Goor, Jan-Luuk Hillebrands, Saleh Yazdani, Jacob van den Born
BACKGROUND: Chronic renal transplant dysfunction is characterized by loss of renal function and tissue remodeling, including chronic inflammation and lymph vessel formation. Proteoglycans are known for their chemokine presenting capacity. We hypothesize that interruption of the lymphatic chemokine-proteoglycan interaction interferes with the lymphatic outflow of leukocytes from the renal graft and might decrease the anti-graft allo-immune response. METHODS: In a rat renal chronic transplant dysfunction model (female Dark-Agouti to male Wistar Furth), chemokines were profiled by qRT-PCR in microdissected tubulo-interstitial tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28577875/circulating-mir-150-mir-192-mir-200b-and-mir-423-3p-as-non-invasive-biomarkers-of-chronic-allograft-dysfunction
#12
Sepideh Zununi Vahed, Ahmad Poursadegh Zonouzi, Fariba Mahmoodpoor, Nasser Samadi, Mohammadreza Ardalan, Yadollah Omidi
BACKGROUND AND AIMS: Chronic allograft dysfunction (CAD) is the major cause of renal allograft loss and can only be diagnosed by invasive histological examinations. The current study aimed to determine whether or not the circulating miR-125a, miR-150, miR-192, miR-200b, miR-423-3p and miR-433 could serve as predictors of graft outcome in the renal transplant recipients with CAD. METHODS: To evaluate the expression levels of miRNAs, we used quantitative real-time PCR (qPCR) and analyzed the plasma samples of 53 renal transplant recipients, including: 27 recipients with stable graft function (SGF), 26 recipients with biopsy-proven interstitial fibrosis and tubular atrophy (IFTA) and 15 healthy controls...
January 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28573901/a-case-report-of-parvovirus-b19-infection-in-a-renal-allograft
#13
Diana M Oramas, Suman Setty, Vijay Yeldandi, Julio Cabrera, Tushar Patel
Parvovirus B19 infection is undiagnosed in recipients undergoing solid organ transplantation. It is usually responsible for unexplained acute and chronic red blood cell aplasia that does not respond to erythropoietin therapy. Cases of parvovirus B19 infection associated with pancytopenia, solid organ dysfunction, and allograft rejection have been described in the literature. The deterioration of the immune system as a result of severe immunotherapy favors the reactivation of a previous infection or the acquisition of a new one...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28571148/de-novo-focal-segmental-glomerulosclerosis-in-renal-allograft-histological-presentation-and-clinical-correlation-single-centre-experience
#14
Rashmi D Patel, Aruna V Vanikar, Lovelesh A Nigam, Kamal V Kanodia, Kamlesh S Suthar, Himanshu V Patel
INTRODUCTION: Recurrent or de novo glomerulonephritis are one of the well-known causes for renal allograft dysfunction in early and late period after renal transplantation. Focal Segmental Glomerulosclerosis (FSGS) is a devastating lesion of the renal allograft. De novo FSGS is uncommon compared to recurrent FSGS. AIM: To find out the incidence of de novo FSGS. MATERIALS AND METHODS: A retrospective evaluation of renal allograft biopsies was performed from 2007 to 2015, by light microscopy and immunohistochemistry including patient-donor demographics...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28536887/ficolin-2-gene-rs7851696-polymorphism-is-associated-with-delayed-graft-function-and-acute-rejection-in-kidney-allograft-recipients
#15
Ewa Dabrowska-Zamojcin, Michal Czerewaty, Damian Malinowski, Maciej Tarnowski, Sylwia Słuczanowska-Głabowska, Leszek Domanski, Krzysztof Safranow, Andrzej Pawlik
Ficolin-2 is an activator of the complement system that acts via the lectin pathway. Complement activation plays a substantial role in the renal injury inherent to kidney transplantation. In this study, we examined the associations between ficolin-2 gene polymorphisms in exon 8 and kidney allograft function. This study comprised 270 Caucasian deceased-donor renal transplant recipients. The following parameters were recorded in each case: delayed graft function (DGF), acute rejection (AR), and chronic allograft dysfunction...
May 23, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28503746/application-of-ultrasound-elastography-for-chronic-allograft-dysfunction-in-kidney-transplantation
#16
REVIEW
Zijie Wang, Haiwei Yang, Chuanjian Suo, Jifu Wei, Ruoyun Tan, Min Gu
Interstitial fibrosis is the main characteristic of chronic allograft dysfunction, which remains the key factor affecting long-term allograft survival after kidney transplantation. Ultrasound elastography (UE), including real-time elastography, transient elastography, and acoustic radiation force impulse, has been applied widely in breast, thyroid, and liver diseases, especially in the assessment of liver fibrosis. Recently, numerous studies have reported the efficacy of UE methods in evaluating renal allograft fibrosis...
September 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28465534/low-proportion-of-follicular-regulatory-t-cell-in-renal-transplant-patients-with-chronic-antibody-mediated-rejection
#17
Wen Chen, Jian Bai, Haiyan Huang, Lili Bi, Xiangrui Kong, Yu Gao, Yong Han, Li Xiao, Bingyi Shi
Follicular regulatory T (Tfr) cell can effectively regulate humoral immunity, but its function and mechanism in antibody-mediated rejection (AMR) after organ transplantation remains unclear. Here we detected follicular helper T (Tfh) cell subsets in 88 renal transplant patients with chronic renal allograft dysfunction (40 with AMR and 48 without AMR). The ratio of Tfr cells in renal graft tissues and peripheral blood of AMR patients significantly decreased, while the ratio of IL-21-producing Tfh cells (Tfh2 and Tfh17) significantly increased, compared to non-AMR patients...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28455659/differential-expression-of-circulating-mir-21-mir-142-3p-and-mir-155-in-renal-transplant-recipients-with-impaired-graft-function
#18
Sepideh Zununi Vahed, Ahmad Poursadegh Zonouzi, Hossein Ghanbarian, Morteza Ghojazadeh, Nasser Samadi, Yadollah Omidi, Mohammadreza Ardalan
BACKGROUND: The discovery of circulating microRNAs (miRNAs), as potential noninvasive diagnostic biomarkers, has opened new avenues of research for identifying patients with chronic failure in renal transplantation. The present study aimed to investigate the expression levels of four immune-related miRNAs (miR-21, miR-31, miR-142-3p and miR-155) in plasma samples of renal recipients. METHODS: The plasma expression levels of the miRNAs were evaluated by quantitative real-time PCR (qPCR) in 53 renal recipients with long-term stable allograft function, SGF (N = 27), and with biopsy-proven interstitial fibrosis and tubular atrophy (IFTA) (N = 26) and also healthy controls (N = 15)...
April 28, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28396121/antagonism-of-profibrotic-microrna-21-improves%C3%A2-outcome-of-murine-chronic-renal-allograft-dysfunction
#19
Celina Schauerte, Anika Hübner, Song Rong, Shijun Wang, Nelli Shushakova, Michael Mengel, Angela Dettling, Claudia Bang, Kristian Scherf, Malte Koelling, Anette Melk, Hermann Haller, Thomas Thum, Johan M Lorenzen
Chronic renal allograft dysfunction (CAD) is a major limiting factor of long-term graft survival. It is characterized by interstitial fibrosis and tubular atrophy. The underlying pathomechanisms are incompletely understood. MicroRNAs are powerful regulators of gene expression and may have an impact on various diseases by direct mRNA decay or translational inhibition. A murine model of allogenic kidney transplantation was used resulting in CAD at 6 weeks after kidney transplantation. We identified fibrosis-associated miR-21a-5p by whole miRNAome expression analysis to be among the most highly upregulated miRNAs...
April 8, 2017: Kidney International
https://www.readbyqxmd.com/read/28364323/circulating-and-renal-expression-of-hla-g-prevented-chronic-renal-allograft-dysfunction-in-japanese-recipients
#20
Yuki Okushi, Kazuaki Okino, Kiyotaka Mukai, Yuki Matsui, Norifumi Hayashi, Keiji Fujimoto, Hiroki Adachi, Hideki Yamaya, Hitoshi Yokoyama
BACKGROUND: Although the risk of acute rejection has been studied in renal transplanted patients, there is little data about the long-term renal survival effects of non-classical human leukocyte antigen class I (HLA-G) in Japanese patients. METHOD: We investigated the changes in the estimated glomerular filtration rate (eGFR) for Japanese, and factors affecting the eGFR in 141 adult Japanese subjects whose allografts had survived for at least 1 year. Clinical background data, gender, HLA matching status, the total ischemic time, ABO incompatibility, immunosuppressive therapy, and the serum soluble(s) HLA-G5 level were examined...
March 31, 2017: Clinical and Experimental Nephrology
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