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transplant kidney pathology

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https://www.readbyqxmd.com/read/28302753/erythropoietin-receptor-mediated-molecular-crosstalk-promotes-t-cell-immunoregulation-and-transplant-survival
#1
Carolina Purroy, Robert L Fairchild, Toshiaki Tanaka, William M Baldwin, Joaquin Manrique, Joren C Madsen, Robert B Colvin, Alessandro Alessandrini, Bruce R Blazar, Miguel Fribourg, Chiara Donadei, Umberto Maggiore, Peter S Heeger, Paolo Cravedi
Although spontaneous kidney transplant acceptance/tolerance occurs in mice and occasionally in humans, mechanisms remain unclear. Herein we test the hypothesis that EPO, a hormone predominantly produced by the adult kidney, has immunomodulating properties that are required for spontaneous kidney graft acceptance. In vitro, in a manner dependent on the EPO receptor and CD131 on antigen-presenting cells, EPO induced the secretion of active TGFβ by antigen-presenting cells, which in turn converted naïve CD4(+) T cells into functional Foxp3(+) regulatory T cells (Treg)...
March 16, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28286934/relationship-between-diurnal-blood-pressure-and-renal-histopathological-changes-in-white-coat-hypertension
#2
Erhan Tatar, Adam Uslu, Funda Tasli, Murat Karatas
BACKGROUND: Multiple epidemiological studies have clearly demonstrated the macrovascular risks associated with white coat hypertension (WCH) or sustained hypertension (SH). In patients with WCH, there is no literature available on renal histopathological changes and that on blood pressure pattern and native kidney outcome is scant. We aimed to clarify the relationship between blood pressure variables and pathological features of kidney biopsies in living kidney donors with WCH. METHODS: This cross-sectional study included living kidney donors with WCH (n = 10) and SH (n = 10), and 20 healthy kidney donors with similar demographic features (control group)...
March 12, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28282006/a-nationwide-analysis-of-kidney-autotransplantation
#3
Zhobin Moghadamyeghaneh, Mark H Hanna, Reza Fazlalizadeh, Yoshitsugu Obi, Clarence E Foster, Michael J Stamos, Hirohito Ichii
There are limited data regarding outcomes of patients underwent kidney autotransplantation. This study aims to investigate outcomes of such patients. The nationwide inpatient sample database was used to identify patients underwent kidney autotransplantation during 2002 to 2012. Multivariate analyses using logistic regression were performed to investigate morbidity predictors. A total of 817 patients underwent kidney autotransplantation from 2002 to 2012. The most common indication of surgery was renal artery pathology (22...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28275931/the-concentration-of-vanadium-in-pathologically-altered-human-kidneys
#4
Aleksandra Wilk, Barbara Wiszniewska, Dagmara Szypulska-Koziarska, Paulina Kaczmarek, Maciej Romanowski, Jacek Różański, Marcin Słojewski, Kazimierz Ciechanowski, Małgorzata Marchelek-Myśliwiec, Elżbieta Kalisińska
Vanadium has a unique and beneficial effect on both humans and animal organisms; however, excessive amount of the above-mentioned metal can cause many alterations in tissues and organs, including the kidneys. The aim of the study was to determine the concentration of vanadium (V) in the kidneys removed from patients due to lesions of various etiologies, including the rejection of the transplanted kidneys. Additionally, we determined the influence of selected biological and environmental factors on the V concentration...
March 9, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28272196/transthyretin-related-hereditary-amyloidosis-with-recurrent-vomiting-and-renal-insufficiency-as-the-initial-presentation-a-case-report
#5
Jing Xu, Meng Yang, Xiaoxia Pan, Xialian Yu, Jingyuan Xie, Hong Ren, Xiao Li, Nan Chen
RATIONALE: Hereditary amyloidosis is diagnosed worldwidely with an increasing incidence. As the most common form, transthyretin-related hereditary amyloidosis (ATTR amyloidosis) is an autosomal dominant inherited disease due to mutations of TTR. Over the past several decades, more than 130 mutations have been reported. Previous studies suggested that ATTR amyloidosis initially showed polyneuropathy and autonomic dysfunction but later involving many visceral organs, such as kidney. PATIENT CONCERNS: A young proband carrying TTR p...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28242845/focal-segmental-glomerulosclerosis
#6
Avi Z Rosenberg, Jeffrey B Kopp
Focal segmental glomerulosclerosis (FSGS) is a leading cause of kidney disease worldwide. The presumed etiology of primary FSGS is a plasma factor with responsiveness to immunosuppressive therapy and a risk of recurrence after kidney transplant-important disease characteristics. In contrast, adaptive FSGS is associated with excessive nephron workload due to increased body size, reduced nephron capacity, or single glomerular hyperfiltration associated with certain diseases. Additional etiologies are now recognized as drivers of FSGS: high-penetrance genetic FSGS due to mutations in one of nearly 40 genes, virus-associated FSGS, and medication-associated FSGS...
March 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28228203/a-nationwide-analysis-of-kidney-autotransplantation
#7
Zhobin Moghadamyeghaneh, Mark H Hanna, Reza Fazlalizadeh, Yoshitsugu Obi, Clarence E Foster, Michael J Stamos, Hirohito Ichii
There are limited data regarding outcomes of patients underwent kidney autotransplantation. This study aims to investigate outcomes of such patients. The nationwide inpatient sample database was used to identify patients underwent kidney autotransplantation during 2002 to 2012. Multivariate analyses using logistic regression were performed to investigate morbidity predictors. A total of 817 patients underwent kidney autotransplantation from 2002 to 2012. The most common indication of surgery was renal artery pathology (22...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28214296/abnormally-high-and-heterogeneous-bone-matrix-mineralization-after-childhood-solid-organ-transplantation-a-complex-pathology-of-low-bone-turnover-and-local-defects-in-mineralization
#8
Nadja Fratzl-Zelman, Helena Valta, Renata C Pereira, Barbara M Misof, Paul Roschger, Hannu Jalanko, Kathrine Wesseling-Perry, Klaus Klaushofer, Outi Mäkitie
Chronic renal, liver and heart failure in children associates with multiple skeletal complications. Increased fracture incidence often persists after transplantation and could be related to alterations in bone material properties. In the present cohort study we evaluated bone mineralization density distribution (BMDD) by quantitative backscattered electron imaging (qBEI) in 23 pediatric solid organ allograft recipients with suspected osteoporosis. We measured BMDD in the entire cross-sectional area of transiliac bone biopsies obtained from kidney (n = 9), liver (n = 9) and heart (n = 5) transplant recipients (aged 7...
February 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28210573/emphysematous-pyelonephritis-in-a-transplanted-kidney
#9
Cristiano Claudino Oliveira, Paula Dalsoglio Garcia, Rosa Marlene Viero
Emphysematous pyelonephritis is a rare infection characterized by necrosis and gas accumulation in the renal parenchyma, adjacent tissues, and/or urinary collecting system. This entity is rarely reported in transplanted kidneys. Computed tomography imaging is necessary for diagnosis and risk classification. The authors described the case of a 58-year-old man who underwent a kidney transplant and presented sepsis from a urinary tract infection. An abdominal tomography showed some characteristics of emphysematous pyelonephritis associated with an abscess...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28185412/differences-in-clinical-and-pathological-features-of-renal-cell-carcinoma-between-japanese-patients-after-kidney-transplantation-and-those-on-hemodialysis
#10
Toshio Takagi, Tsunenori Kondo, Masayoshi Okumi, Hideki Ishida, Kazunari Tanabe
We compared the clinical features, pathological features, and prognoses of patients with renal cell carcinoma (RCC) arising in the native kidney after kidney transplantation (RCC-transplant) or on hemodialysis (RCC-HD), and analyzed predictive factors for survival at a Japanese single institution. This cohort included 42 patients in the RCC-transplant group and 467 patients in the RCC-HD group. RCC-transplant patients were younger (53 years vs. 56 years, P = 0.0358) and had less frequent symptoms (12% vs...
February 10, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28184034/hyperbaric-oxygenation-protects-against-ischemia-reperfusion-injury-in-transplanted-rat-kidneys-by-triggering-autophagy-and-inhibiting-inflammatory-response
#11
Ding-Su Bao, Yu-Ke Wu, Shi-Jie Fu, Guo-You Wang, Si-Jin Yang, Guo-Biao Liang, Zhi-Hui Xie, Song Rong
BACKGROUND Ischemia-reperfusion injury (IRI) is a clinically common pathologic process defined as the inability to improve neuronal function. This study aimed to investigate the pathological mechanism of IRI and to explore effects of hyperbaric oxygenation (HBO) on autophagy and inflammatory response in IRI. MATERIAL AND METHODS Ninety Sprague-Dawley (SD) rats were randomly divided into a Sham group, a kidney transplant group (Trans), and a kidney transplant plus HBO treatment group (Trans+HBO). The kidney was harvested from the donor and transplanted to recipient rats according to a previously reported study...
February 10, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28176336/effect-of-hypothermic-machine-perfusion-on-the-preservation-of-kidneys-donated-after-cardiac-death-a-single-center-randomized-controlled-trial
#12
Wei Wang, Dawei Xie, Xiaopeng Hu, Hang Yin, Hang Liu, Xiaodong Zhang
To assess the application of a hypothermic machine perfusion device (LifePort) in kidney transplantation from donation after cardiac death (DCD) donors, 24 pairs of DCD kidneys were randomly divided into two groups: one of the paired kidneys from the same donor was perfused with the LifePort machine (hypothermic machine perfusion [HMP]), and the contralateral kidney was prepared using common static cold preservation (CCP). The two groups were compared with respect to the incidence of delayed graft function (DGF), level of graft function, and pathological changes in time-zero biopsy specimens...
February 8, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28160460/the-timing-of-immunomodulation-induced-by-mesenchymal-stromal-cells-determines-the-outcome-of-the-graft-in-experimental-renal-allotransplantation
#13
Ana Merino, Elia Ripoll, Laura de Ramon, Nuria Bolaños, Montserrat Goma, Oriol Bestard, Nuria Lloberas, Josep M Grinyo, Juan Torras
<p>The immunomodulatory characteristics of mesenchymal stromal cells (MSCs) may lead to multifaceted strategies in rejection of organ transplantation. This study was designed to investigate the effect of the donor-type MSCs from Wistar rats firstly on the immune system of immunocompetent Lewis rats and secondly the rejection responses in a renal transplantation model of Wistar to Lewis.</p><p>In the first experimental model, MSCs from bone marrow induced a systemic immune response in the immunocompetent Lewis rats, characterized by two different phases...
February 3, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28134905/kidney-renal-pathology-including-transplantation
#14
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28134866/kidney-renal-pathology-including-transplantation
#15
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28125729/association-of-serum-mir-142-3p-and-mir-101-3p-levels-with-acute-cellular-rejection-after-heart-transplantation
#16
Ihdina Sukma Dewi, Zsuzsanna Hollander, Karen K Lam, Janet-Wilson McManus, Scott J Tebbutt, Raymond T Ng, Paul A Keown, Robert W McMaster, Bruce M McManus, Olof Gidlöf, Jenny Öhman
BACKGROUND: Identifying non-invasive and reliable blood-derived biomarkers for early detection of acute cellular rejection in heart transplant recipients is of great importance in clinical practice. MicroRNAs are small molecules found to be stable in serum and their expression patterns reflect both physiological and underlying pathological conditions in human. METHODS: We compared a group of heart transplant recipients with histologically-verified acute cellular rejection (ACR, n = 26) with a control group of heart transplant recipients without allograft rejection (NR, n = 37) by assessing the levels of a select set of microRNAs in serum specimens...
2017: PloS One
https://www.readbyqxmd.com/read/28104125/efficacy-of-eculizumab-therapy-for-atypical-hemolytic-uremic-syndrome-recurrence-and-antibody-mediated-rejection-progress-after-renal-transplantation-with-preformed-donor-specific-antibodies-case-report
#17
T Yamamoto, Y Watarai, K Futamura, M Okada, M Tsujita, T Hiramitsu, N Goto, S Narumi, A Takeda, T Kobayashi
Atypical hemolytic uremic syndrome (aHUS) develops as the result of unregulated complement progression and precipitates de novo thrombotic microangiopathy. Plasma therapy is used to control the progression of the complement cascade, but that therapy is not effective in all patients and is accompanied by risk of infection and/or allergy. Eculizumab has been reported as an efficient therapy for aHUS. We report the case of a 35-year old woman who underwent effective eculizumab therapy for aHUS recurrence and antibody-mediated rejection (AMR) progress after renal transplantation with preformed donor-specific antibodies (DSA)...
January 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28089754/stem-cell-therapy-an-emerging-modality-in-glomerular-diseases
#18
REVIEW
Umang G Thakkar, Aruna V Vanikar, Hargovind L Trivedi
The kidney has been considered a highly terminally differentiated organ with low proliferative potential and thus unlikely to undergo regeneration. Glomerular disease progresses to end-stage renal disease (ESRD), which requires dialysis or renal transplantation for better quality of life for patients with ESRD. Because of the shortage of implantable kidneys and complications such as immune rejection, septicemia and toxicity of immunosuppression, kidney transplantation remains a challenge. Therapeutic options available for glomerular disease include symptomatic treatment and strategies to delay progression...
January 12, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28086881/dengue-fever-in-renal-transplant-patients-a-systematic-review-of-literature
#19
Ranga Migara Weerakkody, Jean Ansbel Patrick, Mohammed Hussain Rezvi Sheriff
BACKGROUND: Dengue fever in renal transplanted patients has not been studied well, and we review all the literature about episodes dengue fever in renal transplant patients. METHODS: The aim was to describe clinico-pathological characteristics, immunosuppressive protocols, need renal outcome and mortality. PubMed, LILACS, Google Scholar and Research Gate were searched for "Dengue" and "Renal/Kidney Transplantation" with no date limits. Hits were analyzed by two researchers separately...
January 13, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28060025/antibody-mediated-rejection-what-is-the-clinical-relevance
#20
Rachel Hogen, Joseph DiNorcia, Kiran Dhanireddy
PURPOSE OF REVIEW: The review outlines the diagnosis, clinical implications, and treatment strategies for acute and chronic antibody-mediated rejection (AMR) after orthotopic liver transplantation (OLT). RECENT FINDINGS: A combination of clinical work-up, histopathology, C4d staining, and donor-specific antibody (DSA) should be used to diagnose AMR. The differential diagnosis for idiopathic fibrosis now includes chronic AMR. Characterization of pathogenic DSA continues to progress...
January 3, 2017: Current Opinion in Organ Transplantation
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