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https://www.readbyqxmd.com/read/29471458/pro-the-rationale-for-dietary-therapy-for-patients-with-advanced-chronic-kidney-disease
#1
Joel D Kopple, Denis Fouque
Dietary treatment offers many benefits to patients with advanced chronic kidney disease (CKD) who are approaching the need for renal replacement therapy. A large number of these benefits are independent of whether diets slow the rate of progression of CKD. These diets are low in protein and many minerals, and provide adequate energy for the CKD patient. The diets can reduce accumulation of potentially toxic metabolic products derived from protein and amino acid degradation, maintain a healthier balance of body water, sodium, potassium, phosphorus, calcium and other minerals, and prevent or improve protein-energy wasting...
February 19, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29471254/uplc-ms-ms-assay-validation-for-tacrolimus-quantitative-determination-in-peripheral-blood-t-cd4-and-b-cd19-lymphocytes
#2
Paschoalina Romano, Maria da Luz Fernandes, Pérsio de Almeida Rezende Ebner, Nayara Duarte de Oliveira, Larissa Mitsue Okuda, Fabiana Agena, Maria Elizabete Mendes, Nairo Massakazu Sumita, Verônica Coelho, Elias David-Neto, Nelson Zocoler Galante
Monitoring tacrolimus (Tac) exposure in cell matrices enriched with lymphocytes can improve Tac therapeutic drug monitoring (TDM) in solid organ transplant recipients. An UPLC-MS/MS based assay for Tac quantification in peripheral blood T CD4+ and B CD19+ lymphocytes was developed. Peripheral blood mononuclear cells (PBMC) were obtained by density gradient centrifugation and highly purified (purity >90%) T CD4+ and B CD19+ cell suspensions were acquired by magnetic negative selection from whole blood of 6 healthy volunteers...
January 5, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29471104/cellular-senescence-as-a-therapeutic-target-to-improve-renal-transplantation-outcome
#3
REVIEW
Hester van Willigenburg, Peter L J de Keizer, Ron W F de Bruin
Kidney transplants from aged donors are more vulnerable to ischemic injury, suffer more from delayed graft function and have a lower graft survival compared to kidneys from younger donors. On a cellular level, aging results in an increase in cells that are in a permanent cell cycle arrest, termed senescence, which secrete a range of pro-inflammatory cytokines and growth factors. Consequently, these senescent cells negatively influence the local milieu by causing inflammaging, and by reducing the regenerative capacity of the kidney...
February 19, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29471067/the-smell-of-renal-protection-against-chronic-kidney-disease-hydrogen-sulfide-offers-a-potential-stinky-remedy
#4
REVIEW
George J Dugbartey
Chronic kidney disease (CKD) is a common global health challenge characterized by irreversible pathological processes that reduce kidney function and culminates in development of end-stage renal disease. It is associated with increased morbidity and mortality in addition to increased caregiver burden and higher financial cost. A central player in CKD pathogenesis and progression is renal hypoxia. Renal hypoxia stimulates induction of oxidative and endoplasmic reticulum stress, inflammation and tubulointerstitial fibrosis, which in turn, promote cellular susceptibility and further aggravate hypoxia, thus forming a pathological vicious cycle in CKD progression...
October 19, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29470352/intraoperative-management-of-liver-transplant-patients-without-the-routine-use-of-renal-replacement-therapy
#5
Dieter Adelmann, Andrea Olmos, Linda L Liu, John R Feiner, Garrett R Roll, Lyle Burdine, Mehdi Tavakol, Shareef Syed, Babak J Orandi, Claus U Niemann
BACKGROUND: Renal failure is common among patients undergoing liver transplantation. Liver allocation based on the MELD score has increased the number of recipients who require perioperative RRT. Although renal replacement therapy (RRT) can be continued intraoperatively, the risks and benefits of intraoperative RRT are not well defined. The aim of this study is to report the intraoperative management of patients with pretransplant renal failure at a transplant center with extremely infrequent utilization of intraoperative RRT...
February 20, 2018: Transplantation
https://www.readbyqxmd.com/read/29470350/analysis-of-luminex-based-algorithms-to-define-unacceptable-hla-antibodies-in-cdc-crossmatch-negative-kidney-transplant-recipients
#6
Daniel Zecher, Christian Bach, Adrian Preiss, Christoph Staudner, Kirsten Utpatel, Matthias Evert, Bettina Jung, Tobias Bergler, Carsten A Böger, Bernd M Spriewald, Bernhard Banas
BACKGROUND: HLA-specific antibodies detected by solid phase assays are increasingly used to define unacceptable HLA antigen mismatches (UAM) prior to renal transplantation. The accuracy of this approach is unclear. METHODS: Day of transplant sera from 211 CDC-crossmatch-negative patients were retrospectively analyzed for donor-specific anti-HLA antibodies (DSA) using Luminex technology. HLA were defined as UAM if DSA had mean fluorescence intensity above (I) 3000 (patients retransplanted and those with DSA against HLA class I and II) or 5000 (all other patients), (II) 5000 for HLA A, B and DR and 10,000 for HLA DQ or (III) 10,000 (all HLA)...
February 20, 2018: Transplantation
https://www.readbyqxmd.com/read/29470349/impaired-secretion-of-tnf-%C3%AE-by-monocytes-stimulated-with-ebv-peptides-associates-with-infectious-complications-following-kidney-transplantation
#7
Patrice Vallin, Olivier Désy, Stéphanie Béland, François Bouchard-Boivin, Isabelle Houde, S A De Serres
BACKGROUND: The successful development of immunosuppressive agents has paradoxically led to an era in which adverse effects of immunosuppression, such as infections and cancer, are now a major concern in solid organ recipients. Nevertheless, the main focus of immune monitoring research remains the identification of rejection. There is currently no clinical tool to assess the net state of immunosuppression or to identify patients at increased risk of infectious complications. METHODS: We report a prospective, longitudinal study in which we conducted detailed phenotyping of over 300 peripheral blood mononuclear cell samples from 45 kidney recipients during the first 24 months posttransplant...
February 20, 2018: Transplantation
https://www.readbyqxmd.com/read/29470347/establishing-a-core-outcome-measure-for-graft-health-a-standardized-outcomes-in-nephrology-kidney-transplantation-song-tx-consensus-workshop-report
#8
Allison Tong, Benedicte Sautenet, Emilio D Poggio, Krista L Lentine, Rainer Oberbauer, Roslyn Mannon, Barbara Murphy, Benita Padilla, Kai Ming Chow, Lorna Marson, Steve Chadban, Jonathan C Craig, Angela Ju, Karine E Manera, Camilla S Hanson, Michelle A Josephson, Greg Knoll
BACKGROUND: Graft loss, a critically important outcome for transplant recipients, is variably defined and measured, and incompletely reported in trials. We convened a consensus workshop on establishing a core outcome measure for graft loss for all trials in kidney transplantation. METHODS: Twenty-five kidney transplant recipients/caregivers and 33 health professionals from eight countries participated. Transcripts were analyzed thematically. RESULTS: Five themes were identified...
February 22, 2018: Transplantation
https://www.readbyqxmd.com/read/29470345/summary-of-2017-fda-public-workshop-antibody-mediated-rejection-in-kidney-transplantation
#9
Ergun Velidedeoglu, Marc W Cavaillé-Coll, Shukal Bala, Ozlem A Belen, Yan Wang, Renata Albrecht
BACKGROUND: Despite major advances in understanding the pathophysiology of antibody mediated rejection (AMR); prevention, diagnosis and treatment remain unmet medical needs. It appears that early T-cell mediated rejection (TCMR), de novo donor specific antibody (dnDSA) formation and AMR result from patient or physician initiated suboptimal immunosuppression, and represent landmarks in an ongoing process rather than separate events. METHODS: On April 12-13, 2017, the Food and Drug Administration (FDA) sponsored a public workshop on AMR in kidney transplantation to discuss new advances, importance of immunosuppressive medication nonadherence in dnDSA formation, associations between AMR, cellular rejection, changes in GFR, and challenges of clinical trial design for the prevention and treatment of AMR...
February 20, 2018: Transplantation
https://www.readbyqxmd.com/read/29469606/detection-of-a-rare-cyp3a4-variant-in-a-transplant-patient-characterized-by-a-tacrolimus-poor-metabolizer-phenotype
#10
Nuria Lloberas, Dennis A Hesselink, Ron Hn van Schaik, Josep M Grinyò, Helena Colom, Teun van Gelder, Laure Elens
A validated CYP3A genotype classification system allows clustering patients into poor, intermediate and extensive metabolizer phenotypes. However, substantial overlap exists between the clusters. A rare CYP3A4 allele, named CYP3A4*20 (rs67666821), has been specifically described in the Spanish population. The authors investigated the relevance of CYP3A4*20 testing to see if the above-mentioned metabolic CYP3A classification system can be improved. In a cohort of 204 kidney transplant recipients, one male patient carrying a CYP3A4*20 allele was detected...
February 22, 2018: Pharmacogenomics
https://www.readbyqxmd.com/read/29468200/robot-assisted-perineal-radical-prostatectomy-in-a-post-kidney-transplant-recipient
#11
Volkan Tugcu, Abdulmuttalip Simsek, Ismail Yigitbasi, Mustafa Gurkan Yenice, Selcuk Sahin, Ali Ihsan Tasci
Background: After almost two decades, transabdominal robotic radical prostatectomy techniques have been fully developed and are widely practiced by many robotic urologists. Recently, a transperineal robotic radical prostatectomy, a technique not yet popular to many, was introduced as an alternative approach in patients with previous abdominal surgery. Here, we present our unique experience with robotic perineal radical prostatectomy (r-PRP) on a kidney transplant recipient. Case Presentation: A 71-year-old man who had a kidney transplant 4 months previously was diagnosed with prostate cancer (PCa) and underwent r-PRP using the da Vinci Xi robotic system...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29468058/a-patient-with-men1-and-end-stage-chronic-kidney-disease-due-to-alport-syndrome-decision-making-on-the-eligibility-of-transplantation
#12
Antonio Matrone, Alessandro Brancatella, Piero Marchetti, Enrico Vasile, Ugo Boggi, Rossella Elisei, Filomena Cetani, Claudio Marcocci, Paolo Vitti, Francesco Latrofa
Absence of neoplastic disease in the organ-recipient is required in order to allow organ transplantation. Due to its rarity, no data regarding management of patients with Multiple endocrine neoplasia type 1 (MEN1) and end-stage renal failure candidates for kidney transplantation are available. A 36 year-old man was referred to the present hospital with MEN1, with a neuroendocrine pancreatic tumor and primary hyperparathyroidism and associated Alport syndrome with end stage renal failure. The present study aimed to establish the eligibility of the patient for a kidney transplantation...
March 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29467993/pediatric-renal-transplantation-in-oman-a-single-center-experience
#13
Mohamed S Al Riyami, Sulaiman Al Saidi, Badria Al Ghaithi, Anisa Al Maskari, Sadiq Lala, Nabil Mohsin, Lekha Hirshikesan, Naifain Al Kalbani
Objectives: This study sought to report 22 years experience in pediatric kidney transplantation in Oman. Methods: Electronic charts of all Omani children below 13 years of age who received a kidney transplant from January 1994 to December 2015 were reviewed. Data collected included patient demographics, etiology of end-stage kidney disease, modality and duration of dialysis, donor type, complication of kidney transplantation (including surgical complications, infections, graft rejection) graft and patient survival, and duration of follow-up...
January 2018: Oman Medical Journal
https://www.readbyqxmd.com/read/29467761/establishment-of-the-reference-intervals-of-lymphocyte-function-in-healthy-adults-based-on-ifn-%C3%AE-secretion-assay-upon-phorbol-12-myristate-13-acetate-ionomycin-stimulation
#14
Hongyan Hou, Yu Zhou, Jing Yu, Lie Mao, Munyemana Jean Bosco, Juan Wang, Yanfang Lu, Liyan Mao, Xiaohui Wu, Feng Wang, Ziyong Sun
The function of lymphocytes is the key to reflect the immune status of hosts. Evaluation of lymphocyte function is a useful tool to monitor the effect of immunosuppressive treatment and predict the prognosis of immune-mediated diseases (e.g., cancer, autoimmune diseases, and infectious diseases). As the lymphocytes have various activities, such as activation, cytotoxicity, and cytokine secretion, it is a challenge to evaluate the function of lymphocytes in clinical practice and the reference intervals (RIs) of lymphocyte function are rarely reported...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29466800/the-association-between-oxidative-stress-alleviation-via-sulforaphane-induced-nrf2-ho-1-nqo-1-signaling-pathway-activation-and-chronic-renal-allograft-dysfunction-improvement
#15
Daoyuan Lv, Qin Zhou, Yue Xia, Xu You, Zhihong Zhao, Yongqiang Li, Hequn Zou
BACKGROUND/AIMS: Chronic renal allograft dysfunction (CRAD) is a leading cause of long-term renal allograft loss. Oxidative stress may account for the nonspecific interstitial fibrosis and tubular atrophy that occur in CRAD. An antioxidant intervention via Nrf2 signaling pathway activation might be a promising therapy for some kidney diseases. The present paper investigates whether there is an association between oxidative stress alleviation via sulforaphane-induced Nrf2-HO-1/NQO-1 signaling pathway activation and CRAD improvement...
February 16, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29466361/is-there-relationship-between-epicardial-fat-and-cardiovascular-parameters-in-incident-kidney-transplant-patients-a-post-hoc-analysis
#16
Daniel Constantino Yazbek, Aluizio Barbosa Carvalho, Cinara Sa Barros, Jose Osmar Medina Pestana, Carlos Eduardo Rochitte, Raul Dias Dos Santos Filho, Maria Eugênia F Canziani
BACKGROUND: Epicardial fat (EF) has been related to increased cardiovascular risk in chronic kidney disease patients. Kidney transplantation is associated with weight gain, especially within the first 12 months. Recently an association between EF and left ventricular mass (LVM) has been suggested in kidney transplant (KTX) recipients. OBJECTIVE: Evaluate the EF in KTX recipients and its association with cardiovascular parameters in a 12-month follow-up study. METHODS: EF volume was determined using thoracic computed tomography...
2018: PloS One
https://www.readbyqxmd.com/read/29465876/-return-to-dialysis-after-kidney-transplantation-a-retrospective-study-in-the-canton-de-vaud
#17
Benjamin Pedrazzini, Dela Golshayan, Daniel Teta
Renal transplantation is the first-line therapy for eligible patients with end-stage kidney disease. However, approximately 20 % of cadaveric graft recipients need to start dialysis at 5 years. The transition period between transplantation and dialysis is at high risk of complications, but data exploring this issue are scarce. In this retrospective study from dialysis centres of the Canton de Vaud, we analysed the clinical data and management of these patients at the beginning of dialysis after graft loss, and up to one year after dialysis start...
February 21, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29464912/bmx-001-a-novel-redox-active-metalloporphyrin-improves-islet-function-and-engraftment-in-a-murine-transplant-model
#18
Antonio Bruni, Andrew R Pepper, Rena L Pawlick, Boris Gala-Lopez, Anissa Gamble, Tatsuya Kin, Andrew J Malcolm, Carissa Jones, Jon D Piganelli, James D Crapo, A M James Shapiro
Islet transplantation has become a well-established therapy for select patients suffering from type 1 diabetes. Viability and engraftment can be compromised by the generation of oxidative stress encountered during isolation and culture. We evaluate whether administration of BMX-001, and its earlier derivative, BMX-010 could improve islet function and engraftment outcomes. Long-term culture of human islets with BMX-001, but not BMX-010, exhibited preserved in vitro viability. Murine islets isolated and cultured for 24 hours with 34μM BMX-001 exhibited improved insulin secretion (n=3 isolations, p<0...
February 21, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29464837/isolated-vascular-v-lesions-in-liver-allografts-how-to-approach-this-unusual-finding
#19
H L Stevenson, M M Prats, K Isse, A Zeevi, Y Avitzur, V L Ng, A J Demetris
According to the Banff criteria for kidney allografts, isolated vascular or "v" lesions are defined as intimal inflammation, age-inappropriate fibro-intimal hyperplasia, or both, without the presence of associated interstitial T cell-mediated rejection (TCMR). In general, these lesions portend a worse outcome for kidney allografts, particularly in those where the "v" lesions are identified in patients with co-existent donor specific antibodies (DSA) or later after transplantation. Although affected arteries are rarely sampled in liver allograft biopsies, we identified 9 patients at a mean of 1,805 days post-transplantation and compared these to matched controls...
February 21, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29464832/differential-effects-of-donor-specific-hla-antibodies-in-living-versus-deceased-donor-transplantation
#20
E G Kamburova, B W Wisse, I Joosten, W A Allebes, A van der Meer, L B Hilbrands, M C Baas, E Spierings, C E Hack, F E van Reekum, A D van Zuilen, M C Verhaar, M L Bots, A C A D Drop, L Plaisier, M A J Seelen, J S F Sanders, B G Hepkema, A J Lambeck, L B Bungener, C Roozendaal, M G J Tilanus, C E Voorter, L Wieten, E M van Duijnhoven, M Gelens, M H L Christiaans, F J van Ittersum, S A Nurmohamed, N M Lardy, W Swelsen, K A van der Pant, N C van der Weerd, I J M Ten Berge, F J Bemelman, A Hoitsma, P J M van der Boog, J W de Fijter, M G H Betjes, S Heidt, D L Roelen, F H Claas, H G Otten
The presence of donor-specific anti-HLA antibodies (DSA) is associated with increased risk of graft failure after kidney transplantation. We hypothesized that DSA against HLA class-I, -II or both indicate a different risk for graft loss between deceased- and living-donor transplantation. In this study we investigated the impact of pretransplant DSA, assessed using single antigen bead assays, on long-term graft survival in 3237 deceased- and 1487 living-donor kidney transplantations with a negative complement-dependent crossmatch...
February 21, 2018: American Journal of Transplantation
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