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https://www.readbyqxmd.com/read/29331053/renal-flow-and-microstructure-anisotropy-refmap-mri-in-normal-and-peritumoral-renal-tissue
#1
Andrea L Liu, Artem Mikheev, Henry Rusinek, William C Huang, James S Wysock, James S Babb, Thorsten Feiweier, David Stoffel, Hersh Chandarana, Eric E Sigmund
BACKGROUND: Diffusion-weighted imaging (DWI) provides insight into the pathophysiology underlying renal dysfunction. Variants of DWI include intravoxel incoherent motion (IVIM), which differentiates between microstructural diffusion and vascular or tubular flow, and diffusion tensor imaging (DTI), which quantifies diffusion directionality. PURPOSE: To investigate the reproducibility of joint IVIM-DTI and compare controls to presurgical renal mass patients. STUDY TYPE: Prospective cross-sectional...
January 13, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29329190/landscape-of-living-multi-organ-donation-in-the-united-states-a-registry-based-cohort-study
#2
Macey L Henderson, Sandra R DiBrito, Alvin G Thomas, Courtenay M Holscher, Ashton A Shaffer, Mary Grace Bowring, Tanjala S Purnell, Allan B Massie, Jacqueline Garonzik-Wang, Madeleine Waldram, Krista L Lentine, Dorry L Segev
BACKGROUND: The donation of multiple allografts from a single living donor is a rare practice, and the patient characteristics and outcomes associated with these procedures are not well described. METHODS: Using the SRTR registry, we identified 101 living multi-organ donors and their 133 recipients. RESULTS: The 49 sequential (donations during separate procedures) multi-organ donors provided grafts to 81 recipients: 21 kidney-then-liver, 15 liver-then-kidney, 5 lung-then-kidney, 3 liver-then-intestine, 3 kidney-then-pancreas, 1 lung-then-liver, and 1 pancreas-then-kidney...
January 11, 2018: Transplantation
https://www.readbyqxmd.com/read/29326157/targeting-b-cells-and-plasma-cells-in-glomerular-diseases-translational-perspectives
#3
Eva Schrezenmeier, David Jayne, Thomas Dörner
The unique contributions of memory B cells and plasma cells in kidney diseases remain unclear. In this review, we evaluate the clinical experience with treatments directed at B cells, such as rituximab, and at plasma cells, such as proteasome inhibition, to shed light on the role of these two B lineage compartments in glomerular diseases. Specifically, analysis of these targeted interventions in diseases such as ANCA-associated vasculitis, SLE, and antibody-mediated transplant rejection permits insight into the pathogenetic effect of these cells...
January 11, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29322432/renal-histopathological-findings-of-retinal-vasculopathy-with-cerebral-leukodystrophy
#4
Yutaka Tsubata, Takashi Morita, Tetsuo Morioka, Taiji Sasagawa, Kouzo Ikarashi, Noriko Saito, Hisaki Shimada, Shigeru Miyazaki, Shinji Sakai, Hajime Tanaka, Rie Saito, Yasuko Toyoshima, Hiroaki Nozaki, Ichiei Narita
Retinal vasculopathy with cerebral leukodystrophy (RVCL) is a rare autosomal dominant systemic microvascular disease. Neurological disorders and visual disturbance are highlighted as manifestations of RVCL; however, there are few reports focused on nephropathy. Herein, we describe detailed renal histopathological findings in a daughter and father with RVCL, proven by TREX1 genetic analysis. A kidney biopsy of the daughter, 35-year-old with asymptomatic proteinuria, revealed unique and various glomerular changes...
January 10, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29319624/long-term-outcome-of-one-step-kidney-transplantation-and-bladder-augmentation-procedure-in-pediatric-patients
#5
R Cleper, D Ben Meir, I Krause, P Livne, E Mor, M Davidovits, A Dagan
BACKGROUND: Guidelines for bladder augmentation (BA) in kidney transplant (KT) recipients are not well-defined. In our center, simultaneous BA with KT (BA-KT) is performed. We assessed transplantation outcomes of this unique extensive procedure. METHODS: A case-control single center retrospective study. Transplantation outcomes were compared with those of KT recipients who did not need BA. RESULTS: Compared to 22 patients who underwent KT only, for 9 who underwent BA-KT, surgical complications and the need for revision in the early posttransplantation period were similar; early graft function was better: estimated glomerular filtration rate (eGFR): 96...
January 10, 2018: Transplantation
https://www.readbyqxmd.com/read/29317308/molecular-characterization-of-caspase-members-and-expression-response-to-nervous-necrosis-virus-outbreak-in-pacific-cod
#6
Ming-Guang Mao, Jie-Lan Jiang, Zhi-Qiang Jiang, Rui-Ting Liu, Qi-Ya Zhang, Jian-Fang Gui
Multiple functions of caspases include normal cell turnover, proper development and function of the immune system, hormone-dependent atrophy, embryonic development and chemical-induced cell injury. During artificial propagation of Pacific cod, Gadus macrocephalus, high mortality occurred during early development stages. Here, we performed various analyses on the cDNA and protein sequences of six different G. macrocephalus caspases namely GmCasp3, 6, 7, 8, 9 and 10, and tried to investigate the contributions of caspase family to the development and Nervous Necrosis Virus (NNV) resistance...
January 6, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29315834/medical-safety-in-the-care-of-the-person-with-end-stage-kidney-disease
#7
John V Duronville, Clarissa J Diamantidis
Much is written about medical safety as it pertains to patients with chronic kidney disease, yet the transition to end-stage kidney disease and processes inherent to the receipt of dialysis present unique safety challenges in this population. Educational efforts in medical safety need to focus on the areas of greatest threat and where intervention can provide the greatest benefit. This study addresses such safety topics in the dialysis population and identifies potential strategies that may aid in harm reduction...
January 7, 2018: Seminars in Dialysis
https://www.readbyqxmd.com/read/29310747/population-based-seroprevalence-of-puumala-hantavirus-in-finland-smoking-as-a-risk-factor
#8
F Latronico, S Mäki, H Rissanen, J Ollgren, O Lyytikäinen, O Vapalahti, J Sane
Puumala hantavirus (PUUV) causes hemorrhagic fever with renal syndrome in humans, that is an endemic disease in Finland. We estimated the seroprevalence of PUUV in Finland and explored risk factors and disease associations by using unique survey data with health register linkage. A total of 2000 sera from a nationwide health survey from 2011, representative of the adult population, were screened for PUUV IgG by immunofluorescence assay. We performed statistical analysis adjusting for stratified cluster design and taking into account sampling weights...
January 9, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29307563/isolation-of-neospora-caninum-from-kidney-and-brain-of-a-bovine-foetus-and-molecular-characterization-in-brazil
#9
Rosangela Locatelli Dittrich, Javier Regidor-Cerrillo, Luis Miguel Ortega-Mora, Marília de Oliveira Koch, Ana Paula B Busch, Kamila Alcalá Gonçalves, Amilcar A Cruz
Bovine neosporosis has become a disease of international concern as it is among the main causes of abortion in cattle. Viable N. caninum has been isolated from brains of fetuses and neonatal calves, and there is no report of isolation of tachyzoites from kidney. Also, detailed information about the genetic diversity of N. caninum is scarce. N. caninum tachyzoites were isolated from the kidney and the brain of an aborted 4-month-old bovine foetus. The parasite was confirmed to be N. caninum by PCR. The tachyzoites of the new isolate, named BNC-PR4, were propagated in Vero cell cultures...
January 5, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29291380/unique-metabolomic-signature-associated-with-hepatorenal-dysfunction-and-mortality-in-cirrhosis
#10
Ayse L Mindikoglu, Antone R Opekun, Nagireddy Putluri, Sridevi Devaraj, David Sheikh-Hamad, John M Vierling, John A Goss, Abbas Rana, Gagan K Sood, Prasun K Jalal, Lesley A Inker, Robert P Mohney, Hocine Tighiouart, Robert H Christenson, Thomas C Dowling, Matthew R Weir, Stephen L Seliger, William R Hutson, Charles D Howell, Jean-Pierre Raufman, Laurence S Magder, Cristian Coarfa
The application of nontargeted metabolomic profiling has recently become a powerful noninvasive tool to discover new clinical biomarkers. This study aimed to identify metabolic pathways that could be exploited for prognostic and therapeutic purposes in hepatorenal dysfunction in cirrhosis. One hundred three subjects with cirrhosis had glomerular filtration rate (GFR) measured using iothalamate plasma clearance, and were followed until death, transplantation, or the last encounter. Concomitantly, plasma metabolomic profiling was performed using ultra-performance liquid chromatography-tandem mass spectrometry to identify preliminary metabolomic biomarker candidates...
December 12, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29288697/mesenchymal-stromal-cells-for-tolerance-induction-in-organ-transplantation
#11
REVIEW
Federica Casiraghi, Norberto Perico, Giuseppe Remuzzi
The primary challenge in organ transplantation continues to be the need to suppress the host immune system long-term to ensure prolonged allograft survival. Long-term non-specific immunosuppression can, however, result in life-threatening complications. Thus, efforts have been pursued to explore novel strategies that would allow minimization of maintenance immunosuppression, eventually leading to transplant tolerance. In this scenario, bone marrow-derived mesenchymal stromal cells (MSC), given their given unique immunomodulatory properties to skew the balance between regulatory and memory T cells, have emerged as potential candidates for cell-based therapy to promote immune tolerance...
December 27, 2017: Human Immunology
https://www.readbyqxmd.com/read/29287946/what-we-do-and-do-not-know-about-women-and-kidney-diseases-questions-unanswered-and-answers-unquestioned-reflection-on-world-kidney-day-and-international-woman-s-day
#12
Giorgina B Piccoli, Mona Alrukhaimi, Zhi-Hong Liu, Elena Zakharova, Adeera Levin
Chronic kidney disease affects approximately 10% of the world's adult population: it is within the top 20 causes of death worldwide, and its impact on patients and their families can be devastating. World Kidney Day and International Women's Day in 2018 coincide, thus offering an opportunity to reflect on the importance of women's health and specifically their kidney health, on the community, and the next generations, as well as to strive to be more curious about the unique aspects of kidney disease in women so that we may apply those learnings more broadly...
December 26, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29285341/simulating-a-virtual-population-s-sensitivity-to-salt-and-uninephrectomy
#13
John S Clemmer, Robert L Hester, W Andrew Pruett
Salt sensitivity, with or without concomitant hypertension, is associated with increased mortality. Reduced functional renal mass plays an important role in causing salt-sensitive hypertension for many individuals. Factors that are important in the condition of decreased renal mass and how they affect blood pressure (BP) or salt sensitivity are unclear. We used HumMod, an integrative mathematical model of human physiology, to create a heterogeneous population of 1000 virtual patients by randomly varying physiological parameters...
February 6, 2018: Interface Focus
https://www.readbyqxmd.com/read/29279511/a-case-of-iga-nephropathy-after-nivolumab-therapy-for-postoperative-recurrence-of-lung-squamous-cell-carcinoma
#14
Seiji Kishi, Masanori Minato, Atsuro Saijo, Naoka Murakami, Masanori Tamaki, Motokazu Matsuura, Taichi Murakami, Kojiro Nagai, Hideharu Abe, Yasuhiko Nishioka, Toshio Doi
Immune checkpoint inhibitors (ICIs) are becoming a common and important cancer therapy. ICIs are associated with a unique category of side effects, termed immune-related adverse events (irAEs). We herein report the case of a 72-year-old man with postoperative recurrence of lung squamous cell carcinoma who was treated with nivolumab and who developed proteinuria and a worsening kidney function. A kidney biopsy revealed IgA nephropathy. After drug withdrawal, the proteinuria improved and the deterioration of the patient's renal function was halted...
December 27, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29278542/potential-kidney-toxicity-from-the-antiviral-drug-tenofovir-new-indications-new-formulations-and-a-new-prodrug
#15
Lili Chan, Benjamin Asriel, Ellen F Eaton, Christina M Wyatt
PURPOSE OF REVIEW: The antiviral agent tenofovir is highly effective for the treatment of HIV and hepatitis B virus infections, and the older prodrug tenofovir disoproxil fumarate (TDF) is also a component of daily preexposure prophylaxis (PrEP) to reduce the risk of HIV infection in high-risk populations. Although TDF is well tolerated, the potential for kidney and bone toxicity has important implications for public health given the large number of individuals exposed to TDF worldwide...
December 22, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29277956/kidney-transplantation-and-waitlist-mortality-rates-among-candidates-registered-as-willing-to-accept-a-hepatitis-c-infected-kidney
#16
Brittany A Shelton, Deirdre Sawinski, Shikha Mehta, Rhiannon D Reed, Paul A MacLennan, Jayme E Locke
BACKGROUND: HCV-infected (HCV+) ESRD patients derive significant survival benefit from kidney transplantation (KT) over remaining on dialysis. Given high mortality rates on dialysis and the unique ability to accept HCV+ and HCV- donor kidneys, understanding their access to KT is essential. METHODS: 3,963 adult kidney-only candidates reported as willing to accept an HCV+ kidney from 2008-2014 were identified and assumed to be HCV+. Time-at-risk began at date of listing...
December 26, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29277885/different-strains-of-bk-polyomavirus-vp1-sequences-in-a-group-of-iranian-prostate-cancer-patients
#17
Maryam Vaezjalali, Helia Azimi, Seyed Masoud Hosseini, Afsoon Taghavi, Hossein Goudarzi
PURPOSE: BK virus (BKV) has a worldwide seroprevalence in humans. Based on sequences of the major capsid proteins, i.e. viral protein 1 (VP1), there are four BKV genotypes. Each genotype has its own subtypes, and wasshown to be circulating independently in the human population. The aim of this study was to determine BKVgenotypes and subtypes among Iranian patients with prostatic cancer, benign prostatic hyperplasia, and kidney transplantation. MATERIALS AND METHODS: BKV DNA was extracted from prostatic cancers and benign prostatic hyperplasia blocks and also urine of kidney transplantation patients...
December 25, 2017: Urology Journal
https://www.readbyqxmd.com/read/29277692/characterisation-of-signalling-and-regulation-of-common-calcitonin-receptor-splice-variants-and-polymorphisms
#18
Emma Dal Maso, Rasmus Just, Caroline Hick, Arthur Christopoulos, Patrick M Sexton, Denise Wootten, Sebastian G B Furness
The calcitonin receptor (CTR) is a class B G protein-coupled receptor that is a therapeutic target for the treatment of hypercalcaemia of malignancy, Paget's disease and osteoporosis. In primates, the CTR is subject to alternative splicing, with a unique, primate-specific splice variant being preferentially expressed in reproductive organs, lung and kidney. In addition, humans possess a common non-synonymous single-nucleotide polymorphism (SNP) encoding a proline/leucine substitution in the C-terminal tail...
December 22, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29274918/caring-for-migrants-and-refugees-with-end-stage-kidney-disease-in-europe
#19
Wim Van Biesen, Raymond Vanholder, Thomas Ernandez, Daniel Drewniak, Valerie Luyckx
With the number of migrants and refugees increasing globally, the nephrology community is increasingly confronted with issues relating to the management of end-stage kidney disease in this population, including medical, logistical, financial, and moral-ethical questions. Beginning with data for the state of affairs regarding refugees in Europe and grounded in moral reasoning theory, this Policy Forum Perspective contends that to improve care for this specific population, there is a need for: (1) clear demarcations of responsibilities across the societal (macro), local (meso), and individual (micro) levels, such that individual providers are aware of available resources and able to provide essential medical care while societies and local communities determine the general approach to dialysis care for refugees; (2) additional data and evidence to facilitate decision making based on facts rather than emotions; and (3) better information and education in a broad sense (cultural sensitivity, legal rights and obligations, and medical knowledge) to address specific needs in this population...
December 20, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29258531/malignant-rhabdoid-tumor-in-the-renal-allograft-of-an-adult-transplant-recipient-a-unique-case-of-a-rare-tumor
#20
Jing Xiong, Tiefen Su, Pengcheng Zhu, Qilin Ao, Qiurong Ruan, Guoping Wang
BACKGROUND: Renal transplant recipients have increased risk for developing malignant diseases because of immunosuppression or donor-to-recipient transmission. Malignant rhabdoid tumor (MRT) is a rare, highly aggressive and lethal tumor primarily affecting the kidney of infants and young children. MRT has not been reported in the renal allograft of an adult recipient after kidney transplantation. CASE PRESENTATION: In this report, a 47-year-old woman who received a kidney transplantation from an infant donor and developed a mass in the transplanted kidney is presented...
December 19, 2017: Diagnostic Pathology
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