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https://www.readbyqxmd.com/read/28546439/survival-benefit-of-transplantation-with-a-deceased-diabetic-donor-kidney-compared-with-remaining-on-the-waitlist
#1
Jordana B Cohen, Kevin C Eddinger, Jayme E Locke, Kimberly A Forde, Peter P Reese, Deirdre L Sawinski
BACKGROUND AND OBJECTIVES: Use of diabetic donor kidneys has been a necessary response to the donor organ shortage. Recipients of diabetic donor kidneys have higher mortality risk compared with recipients of nondiabetic donor kidneys. However, the survival benefit of transplantation with diabetic donor kidneys over remaining on the waitlist has not been previously evaluated. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed an observational cohort study of 437,619 kidney transplant candidates from the Organ Procurement and Transplantation Network database, including 8101 recipients of diabetic donor kidneys and 126,560 recipients of nondiabetic donor kidneys...
May 25, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28537846/uremic-toxins-affect-the-imbalance-of-redox-state-and-overexpression-of-prolyl-hydroxylase-2-in-human-adipose-tissue-derived-mesenchymal-stem-cells-involved-in-wound-healing
#2
Vuong Cat Khanh, Kinuko Ohneda, Toshiki Kato, Toshiharu Yamashita, Fujio Sato, Kana Tachi, Osamu Ohneda
Chronic kidney disease (CKD) results in a delay in wound healing because of its complications such as uremia, anemia, and fluid overload. Mesenchymal stem cells (MSCs) are considered to be a candidate for wound healing because of the ability to recruit many types of cells. However, it is still unclear whether the CKD-adipose tissue-derived MSCs (CKD-AT-MSCs) have the same function in wound healing as healthy donor-derived normal AT-MSCs (nAT-MSCs). In this study, we found that uremic toxins induced elevated reactive oxygen species (ROS) expression in nAT-MSCs, resulting in the reduced expression of hypoxia-inducible factor-1α (HIF-1α) under hypoxic conditions...
May 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28536691/periostin-and-discoidin-domain-receptor-1-new-biomarkers-or-targets-for-therapy-of-renal-disease
#3
REVIEW
Niki Prakoura, Christos Chatziantoniou
Chronic kidney disease (CKD) can be a life-threatening condition, which eventually requires renal replacement therapy through dialysis or transplantation. A lot of effort and resources have been invested the last years in the identification of novel markers of progression and targets for therapy, in order to achieve a more efficient prognosis, diagnosis, and treatment of renal diseases. Using experimental models of renal disease, we identified and studied two promising candidates: periostin, a matricellular protein with high expression in bone and dental tissues, and discoidin domain receptor 1 (DDR1), a transmembrane collagen receptor of the tyrosine kinase family...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28524801/association-of-ugt2b7-ugt1a9-abcg2-and-il23r-polymorphisms-with-rejection-risk-in-kidney-transplant-patients
#4
Heloísa Lizotti Cilião, Rossana Batista Oliveira Camargo-Godoy, Marilesia Ferreira de Souza, Mariana Bisarro Dos Reis, Lorena Iastrenski, Vinicius Daher Alvares Delfino, Silvia Regina Rogatto, Ilce Mara de Syllos Cólus
Despite advances in testing compatibility between donor and recipient, graft rejection remains a current concern. Single-nucleotide polymorphisms (SNPs) that codify altered enzymes of metabolism, drug transport, and the immune system may contribute to graft rejection in transplant patients. This study examined the association between SNPs present in genes of these processes and occurrence of graft rejection episodes in 246 kidney transplant patients, 35% of which were diagnosed with rejection. Genotype-gene expression associations were also assessed...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28520146/association-of-tenofovir-disoproxil-fumarate-with-primary-allograft-survival-in-hiv-positive-kidney-transplant-recipients
#5
Suzanne M Boyle, Gregory Malat, Meera N Harhay, Dong H Lee, Lisa Pang, Sindhura Talluri, Akshay Sharma, Tiffany E Bias, Karthik Ranganna, Alden M Doyle
BACKGROUND: Tenofovir disoproxil fumarate (TDF) is an anti-retroviral agent frequently used to treat human immunodeficiency virus (HIV). There are concerns regarding its potential to cause acute kidney injury, chronic kidney disease, and proximal tubulopathy. Although TDF can effectively suppress HIV after kidney transplantation, it is unknown whether use of TDF-based anti-retroviral therapy (ART) after kidney transplant (KT) adversely affects allograft survival. METHODS: We examined 104 HIV+ KT recipients at our center between 2001 and 2014...
May 18, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28514250/accept-or-decline-an-analytics-based-decision-tool-for-kidney-offer-evaluation
#6
Dimitris Bertsimas, Jerry Kung, Nikolaos Trichakis, David Wojciechowski, Parsia A Vagefi
BACKGROUND: When a deceased-donor kidney is offered to a waitlisted candidate, the decision to accept or decline the organ relies primarily upon a practitioner's experience and intuition. Such decisions must achieve a delicate balance between estimating the immediate benefit of transplantation and the potential for future higher-quality offers. However, the current experience-based paradigm lacks scientific rigor and is subject to the inaccuracies that plague anecdotal decision-making...
May 17, 2017: Transplantation
https://www.readbyqxmd.com/read/28488572/acute-hypocalcemia-following-kidney-transplantation-may-depend-on-the-type-of-remote-parathyroidectomy-a-retrospective-cohort-study%C3%A2
#7
Malorie Simons, Josef Bautista, Rachel Occhiogrosso, Lori Scott-Sheldon, Reginald Gohh
BACKGROUND: Secondary hyperparathyroidism is a common complication of chronic kidney disease. When medical management fails, parathyroidectomy (PTX) is a treatment option. The two most common types are subtotal PTX and total PTX with autotransplantation (AT). To date, there is no consensus as to which procedure is preferable, especially in patients who are candidates for future kidney transplantation. The aim of this study was to identify if the type of PTX is a risk factor for acute postrenal transplant (postRTX) hypocalcemia and a concern for problems with long-term calcium homeostasis...
May 10, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28484986/validation-of-a-clinical-pathway-to-assess-asymptomatic-renal-transplant-candidates-using-myocardial-perfusion-imaging
#8
Rami Doukky, Ibtihaj Fughhi, Tania Campagnoli, Marwan Wassouf, Michael Kharouta, Aviral Vij, Chiedozie Anokwute, Andrew Appis, Amjad Ali
BACKGROUND: An AHA/ACCF scientific statement proposed 8 risk factors to assess the need for noninvasive coronary artery disease (CAD) surveillance in asymptomatic patients undergoing evaluation for kidney transplantation. The clinical application of these risk factors and the role of noninvasive testing in this context have not been defined. METHODS AND RESULTS: We retrospectively followed a cohort of 581 consecutive kidney transplant recipients of whom 401 had pre-transplant radionuclide myocardial perfusion imaging (MPI) and 90 had pre-transplant coronary angiography...
May 8, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28483798/pregnancy-induced-sensitization-promotes-sex-disparity-in-living-donor-kidney-transplantation
#9
Bianca Bromberger, Danielle Spragan, Sohaib Hashmi, Alexander Morrison, Arwin Thomasson, Susanna Nazarian, Deirdre Sawinski, Paige Porrett
The presence of sex disparity in living donor kidney transplantation (LDKT) remains controversial. To determine if women fall behind men in LDKT evaluation, we performed an intention to treat study of 2587 candidates listed for kidney transplant at a single transplant center over 7 years. We found that women and men kidney transplant candidates engaged an equivalent type and number of prospective living donors. However, sex-specific differences in sensitization history and histocompatibility reduced the rate of LDKT for women by 30%...
May 8, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28481436/clinical-yield-of-endoscopic-ultrasound-and-endoscopic-ultrasound-guided-fine-needle-aspiration-for-incidental-pancreatic-cysts-in-kidney-transplant-evaluation
#10
Jared Rejeski, Jeffrey Rogers, Matthew Hauser, Girish Mishra
INTRODUCTION: For several reasons, including an elevated risk for malignancy after transplant, kidney transplant candidates undergo a thorough evaluation prior to transplantation. Further assessment of incidentally discovered pancreatic cysts on routine abdominal imaging has been assumed to be prudent, and the preferred method has been endoscopic ultrasound (EUS) and endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). The clinical utility of EUS/EUS-FNA with respect to transplant decision-making has not been evaluated...
May 8, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28477360/impact-of-transplant-accessibility-for-sensitized-patients-by-avoiding-unacceptable-antigens
#11
Arnaud Del Bello, Nicolas Congy-Jolivet, Benoit Audry, Corinne Antoine, Laure Esposito, Anne-Laure Hebral, Nassim Kamar
Recent data have confirmed the negative impact of preformed donor-specific antibodies after liver transplantation. In order to reduce the risk of developing lesions associated with acute and chronic antibody-mediated rejection in liver-transplant recipients, we evaluated the consequences in terms of transplant accessibility, associated with avoiding preformed DSAs according to several MFI-titer thresholds that have been previously reported to be relevant in liver transplantation. Among the 484 included LT candidates, 99 (20...
May 6, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28476951/proteins-in-preservation-fluid-as-predictors-of-delayed-graft-function-in-kidneys-from-donors-after-circulatory-death
#12
Bas W M van Balkom, Hendrik Gremmels, Liselotte S S Ooms, Raechel J Toorop, Frank J M F Dor, Olivier G de Jong, Laura A Michielsen, Gert J de Borst, Wilco de Jager, Alferso C Abrahams, Arjan D van Zuilen, Marianne C Verhaar
BACKGROUND AND OBJECTIVES: Kidney transplantation is the preferred treatment for ESRD, and donor kidney shortage urges proper donor-recipient matching. Zero-hour biopsies provide predictive values for short- and long-term transplantation outcomes, but are invasive and may not reflect the entire organ. Alternative, more representative methods to predict transplantation outcome are required. We hypothesized that proteins accumulating in preservation fluid during cold ischemic storage can serve as biomarkers to predict post-transplantation graft function...
May 8, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28465379/cell-therapy-in-kidney-transplantation-focus-on-regulatory-t-cells
#13
Nicholas A Zwang, Joseph R Leventhal
Renal transplantation is the renal replacement modality of choice for suitable candidates with advanced CKD or ESRD. Prevention of rejection, however, requires treatment with nonspecific pharmacologic immunosuppressants that carry both systemic and nephrologic toxicities. Use of a patient's own suppressive regulatory T cells (Tregs) is an attractive biologic approach to reduce this burden. Here, we review the immunologic underpinnings of Treg therapy and technical challenges to developing successful cell therapy...
May 2, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28450534/quantifying-postdonation-risk-of-esrd-in-living-kidney-donors
#14
Allan B Massie, Abimereki D Muzaale, Xun Luo, Eric K H Chow, Jayme E Locke, Anh Q Nguyen, Macey L Henderson, Jon J Snyder, Dorry L Segev
Studies have estimated the average risk of postdonation ESRD for living kidney donors in the United States, but personalized estimation on the basis of donor characteristics remains unavailable. We studied 133,824 living kidney donors from 1987 to 2015, as reported to the Organ Procurement and Transplantation Network, with ESRD ascertainment via Centers for Medicare and Medicaid Services linkage, using Cox regression with late entries. Black race (hazard ratio [HR], 2.96; 95% confidence interval [95% CI], 2...
April 27, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28439568/bariatric-surgery-and-kidney-related-outcomes
#15
Alex R Chang, Morgan E Grams, Sankar D Navaneethan
The prevalence of severe obesity in both the general and the chronic kidney disease (CKD) populations continues to rise, with more than one-fifth of CKD patients in the United States having a body mass index of ≥35 kg/m(2). Severe obesity has significant renal consequences, including increased risk of end-stage renal disease (ESRD) and nephrolithiasis. Bariatric surgery represents an effective method for achieving sustained weight loss, and evidence from randomized controlled trials suggests that bariatric surgery is also effective in improving blood pressure, reducing hyperglycemia, and even inducing diabetes remission...
March 2017: KI Reports
https://www.readbyqxmd.com/read/28430594/the-prognostic-significance-of-preoperative-left-ventricular-diastolic-dysfunction-and-left-atrial-enlargement-on-acute-coronary-syndrome-in-kidney-transplantation
#16
Jin Ho Hwang, Jun-Bean Park, Yong-Jin Kim, Jung Nam An, Jaeseok Yang, Curie Ahn, In Mok Jung, Chun Soo Lim, Yon Su Kim, Young Hoon Kim, Jung Pyo Lee
Echocardiography is commonly performed as a screening test to evaluate perioperative risks before kidney transplantation. However, only limited data are available on echocardiographic parameters of left ventricular diastolic dysfunction (LVDD) and left atrial enlargement (LAE) on acute coronary syndrome and mortality in kidney transplant recipients. We reviewed 2779 adult recipients who underwent pretransplant echocardiography from 1997 to 2012. We divided the patients into two and four groups by two categories: LVDD grades 0-1 vs...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419176/mica-diversity-and-linkage-disequilibrium-with-hla-b-alleles-in-renal-transplant-candidates-in-southern-brazil
#17
Roger Haruki Yamakawa, Patrícia Keiko Saito, Geórgia Fernanda Gelmini, José Samuel da Silva, Maria da Graça Bicalho, Sueli Donizete Borelli
The major histocompatibility complex (MHC) class I chain-related gene A (MICA) is located centromerically to the human leukocyte antigen (HLA)-B. The short distance between these loci in the MHC indicates the presence of linkage disequilibrium (LD). Similarly to the HLA, the MICA is highly polymorphic, and this polymorphism has not been well documented in different populations. In this study, we estimated the allelic frequencies of MICA and the linkage disequilibrium with HLA-B alleles in 346 renal-transplant candidates in southern Brazil...
2017: PloS One
https://www.readbyqxmd.com/read/28414804/cyclosporine-a-alters-expression-of-renal-micrornas-new-insights-into-calcineurin-inhibitor-nephrotoxicity
#18
Jennifer L Gooch, Clayton King, Cynthia E Francis, Paul S Garcia, Yun Bai
Calcineurin inhibitors are powerful immunosuppressants that revolutionized organ transplantation. However, non-immune effects of the calcineurin inhibitor, such as cyclosporine A (CsA), have significantly hindered their use. Specifically, nephrotoxicity, which is associated with tubulointerstitial fibrosis, inflammation, and podocyte damage, affects up to half of all transplant patients. Calcineurin is involved in many aspects of kidney development and function; therefore, mechanisms of CsA-induced nephrotoxicity are complex and not yet fully understood...
2017: PloS One
https://www.readbyqxmd.com/read/28405876/laparoscopic-sleeve-gastrectomy-in-kidney-transplant-candidates-a-case-series
#19
Sergio Carandina, Laurent Genser, Manuela Bossi, Laura Montana, Alexandre Cortes, Marie Seman, Marc Danan, Christophe Barrat
BACKGROUND: Patients with a body mass index (BMI) >35 kg/m(2) who need kidney transplant present with increased postoperative mortality and reduced kidney graft survival compared to patients with a lower BMI. For this reason, obese patients are often excluded from the transplantation waiting list. The aim of this study was to evaluate the feasibility and the results of laparoscopic sleeve gastrectomy (LSG) for obese patients awaiting a kidney transplant. METHODS: This was a retrospective study on patients with dialysis-dependent renal failure (DDRF) operated on at two first-level bariatric centers in Paris (France)...
April 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28397368/very-small-pediatric-donor-kidney-transplantation-in-pediatric-recipients
#20
H C Yaffe, P Friedmann, L K Kayler
Kidneys from very small pediatric donors (age <5 years, weight <21 kg) may be a means to increase the donor pool for pediatric recipients. Transplantation of small pediatric kidneys is more commonly performed in adult recipients due to the increased risks of technical complications, thrombosis, and early graft failure. While these risks are abrogated in adult recipients by limiting the donor weight to ≥10 kg and using the EB technique, it is unknown whether pediatric recipients achieve comparable results...
April 11, 2017: Pediatric Transplantation
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