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https://www.readbyqxmd.com/read/28511287/generation-and-characterization-of-highly-purified-canine-schwann-cells-from-spinal-nerve-dorsal-roots-as-potential-new-candidates-for-transplantation-strategies
#1
Nicole Steffensen, Annika Lehmbecker, Ingo Gerhauser, Yimin Wang, Regina Carlson, Andrea Tipold, Wolfgang Baumgärtner, Veronika M Stein
Schwann cells (SCs) are promising candidates for transplantation-strategies in the central nervous system by promoting axonal regeneration. The dog represents a translational model for human spinal cord injury (SCI) for studies with new repair strategies after intervertebral disk herniation (IVDH). To overcome the necessity for an additional surgical procedure, for the first time a protocol for isolation, and purification of canine SCs from spinal-nerve-biopsies during standard hemilaminectomy in IVDH affected paraplegic dogs for potential transplantation was developed...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28511172/donor-specific-anti-human-leukocyte-antigens-antibodies-acute-rejection-renal-function-and-histology-in-kidney-transplant-recipients-receiving-tacrolimus-and-everolimus
#2
Alexandra Ferreira, Claudia Felipe, Marina Cristelli, Laila Viana, Geovana Basso, Suelen Stopa, Juliana Mansur, Mayara Ivani, Adrieli Bessa, Priscila Ruppel, Wilson Aguiar, Erika Campos, Maria Gerbase-DeLima, Henrique Proença, Helio Tedesco-Silva, José Medina-Pestana
BACKGROUND: This analysis compared efficacy, renal function, and histology in kidney transplant recipients receiving tacrolimus (TAC) combined with everolimus (EVR) or mycophenolate (MPS). METHODS: This was a retrospective analysis from a randomized trial in kidney transplant recipients who received a single 3 mg/kg dose of rabbit antithymocyte globulin (r-ATG), TAC, EVR, and prednisone (PRED; r-ATG/EVR, n = 85), basiliximab (BAS), TAC, EVR, and PRED (BAS/EVR, n = 102) or BAS, TAC, MPS, and PRED (BAS/MPS, n = 101)...
May 17, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28508971/short-term-outcome-and-quality-of-life-in-kidney-transplant-recipient-with-monoclonal-gammopathy
#3
Masaaki Yanishi, Hiroyasu Tsukaguchi, Takashi Yoshida, Hisanori Taniguchi, Kenji Yoshida, Takao Mishima, Yoshihiro Komai, Kaneki Yasuda, Masato Watanabe, Motohiko Sugi, Hidefumi Kinoshita, Tadashi Matsuda
Monoclonal gammopathy of undetermined significance (MGUS) is the common pre-malignant B cell disorders with a general prevalence of 3-5 % at age over 50. Because of the potential malignant transformation and immune insufficiency, pre-transplant MGUS recipient should be carefully followed after allograft transplantation. The post-transplant prognosis and quality of life (QOL) in patient with MGUS have not yet been fully determined. The aim of this study is to evaluate function and pathology of the renal allograft and self-assessment QOL changes during 2 years after transplantation in our case of MGUS-bearing recipient...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28500662/application-of-a-novel-bioreactor-for-in-vivo-engineering-of-pancreas-tissue
#4
Hashemi Javad, Pasalar Parvin, Soleimani Masoud, Khorramirouz Reza, Fendereski Kiarad, Enderami Seyed Ehsan, Kajbafzadeh Abdol-Mohammad
Type 1 diabetes is characterized by autoimmune destruction of pancreatic cells. Organ transplantation is an acceptable treatment for native organ failure. However, it is associated with several problems due to a number of reasons, such as the lack of appropriate donors and immunosuppression. In our present study, a novel model is presented for in vivo recellularization of acellular pancreas by implanting between the host pancreas and the adjacent omental flap. In this study, the pancreases were harvested and cannulated via the common bile duct and then, the scaffolds were acellularized by a detergent-based protocol...
May 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28497582/an-objective-definition-for-clinical-suspicion-of-t-cell-mediated-rejection-after-liver-transplantation
#5
Manuel Rodríguez-Perálvarez, Laura De Luca, Gonzalo Crespo, Ángel Rubin, Sandra Marín, Salvador Benlloch, Jordi Colmenero, Marina Berenguer, Miguel Navasa, Emmanuel Tsochatzis, Manuel De la Mata
A uniform definition of clinical suspicion of T-cell mediated rejection (TCMR) in liver transplantation (LT) is needed to homogenize clinical decisions, especially within randomized trials. The present multicentre study included a total of 470 primary LT recipients. The derivation cohort consisted of 142 patients who had clinically-driven liver biopsies at any time after LT. The external validation cohort included 328 patients who underwent protocol biopsies at day 7-10 after LT. The rates of moderate-severe histological TCMR were 33...
May 12, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28491859/autophagy-in-kidney-transplants-of-sirolimus-treated-recipients
#6
Sagar Bhayana, Arpita Baisantry, Thomas D Kraemer, Christoph Wrede, Jan Hegermann, Jan-Hinrich Bräsen, Clemens Bockmeyer, Jan Ulrich Becker, Matthias Ochs, Wilfried Gwinner, Hermann Haller, Anette Melk, Roland Schmitt
BACKGROUND: Mammalian target of rapamycin (mTOR) inhibitors are increasingly used as immunosuppressive agents in kidney transplantation. In the experimental setting it has been shown that mTOR inhibitors promote autophagy, but the concept that this might also occur in transplant patients has not been addressed. OBJECTIVES: This study was designed to investigate the association between mTOR inhibition and autophagy in renal transplants under routine clinical conditions...
March 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28489277/pancreas-after-islet-pai-transplantation-in-non-uremic-type-1-diabetes-a-strategy-for-restoring-durable-insulin-independence
#7
S A Wisel, J M Gardner, G R Roll, J Harbell, C E Freise, S Feng, S M Kang, R Hirose, D B Kaufman, A Posselt, P G Stock
Islet transplantation offers a minimally-invasive approach for beta cell replacement in diabetic patients with hypoglycemic unawareness. Attempts at insulin independence may require multiple islet re-infusions from distinct donors, thus increasing the risk for allogeneic sensitization. Currently, solid organ pancreas transplant is the only remaining surgical option following failed islet transplantation in the US. However, the immunologic impact of repeated exposure to donor antigens on subsequent pancreas transplantation is unclear...
May 10, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28475248/effectiveness-of-an-evidence-based-induction-therapy-protocol-revision-in-adult-kidney-transplant-recipients
#8
Jillian P Casale, Dave J Taber, Carmelina Staino, Kimberly Boyle, Kelly Covert, Nicole A Pilch, Caitlin Mardis, Holly B Meadows, Kenneth D Chavin, John W McGillicuddy, Prabhakar K Baliga, James N Fleming
STUDY OBJECTIVE: Induction immunosuppression significantly improves graft outcomes following kidney transplantation, but protocols vary among transplant centers due to the lack of data identifying an optimal induction agent. The objective of this study was to assess the effectiveness of an evidence-based protocol change in induction therapy in adult kidney transplant recipients. DESIGN: Retrospective cohort study. SETTING: Large tertiary care academic medical center...
May 5, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28457402/early-vascular-thrombosis-after-kidney-transplantation-can-we-predict-patients-at-risk
#9
R A P de Freitas, M L de Lima, M Mazzali
BACKGROUND: Renal transplant is the therapy of choice for patients with chronic renal disease. In recent years, improvement in immunosuppressive drugs reduced early graft loss associated with acute rejection. However, vascular thrombosis, accounting for 5% of early graft loss, can sensitize the recipient for human leukocyte antibodies, reducing the chance for a second transplant. The aim of this study was to identify risk factors for vascular thrombosis in a single transplant center, to design specific prevention protocol...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28452922/chronic-amr-in-liver-transplant-validation-of-the-1-year-camr-score-s-ability-to-determine-long-term-outcome
#10
Jacqueline G O'Leary, Cory Smith, Juncao Cai, Brent Hart, Linda W Jennings, Matthew Everly, Goran B Klintmalm, Anthony J Demetris
BACKGROUND: A proposed chronic antibody-mediated rejection (AMR) score has recently predicted 50%10-year death censored allograft loss in patients with Donor Specific Alloantibodies (DSA) Mean Florescence Intensity (MFI) >10 000 and requires confirmation in patients with lower MFI (1000-10 000). METHODS: All patients who underwent liver transplantation (LT) from 1/00-4/09, had DSA (MFI ≥1000) in serum 10-14 months post-LT, and had a protocolized liver biopsy were evaluated (n=230)...
April 27, 2017: Transplantation
https://www.readbyqxmd.com/read/28444815/endoscopic-findings-following-retroperitoneal-pancreas-transplantation
#11
Alexey Valer'evich Pinchuk, Ilya Victorovich Dmitriev, Nonna Valer'evna Shmarina, Yury Sergeevich Teterin, Aslan Galievich Balkarov, Roman Vasil'evich Storozhev, Yuri Andreevich Anisimov, Ali Magomedovich Gasanov
AIM: An evaluation of the efficacy of endoscopic methods for the diagnosis and correction of surgical and immunological complications after retroperitoneal pancreas transplantation. MATERIALS AND METHODS: From October 2011 to March 2015, 27 patients underwent simultaneous retroperitoneal pancreas-kidney transplantation (SPKT). Diagnostic oesophagogastroduodenoscopy (EGD) with protocol biopsy of the donor and recipient duodenal mucosa and endoscopic retrograde pancreatography (ERP) were performed to detect possible complications...
April 26, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28441386/graft-derived-cell-free-dna-a-noninvasive-early-rejection-and-graft-damage-marker-in-liver-transplantation-a-prospective-observational-multicenter-cohort-study
#12
Ekkehard Schütz, Anna Fischer, Julia Beck, Markus Harden, Martina Koch, Tilo Wuensch, Martin Stockmann, Björn Nashan, Otto Kollmar, Johannes Matthaei, Philipp Kanzow, Philip D Walson, Jürgen Brockmöller, Michael Oellerich
BACKGROUND: Graft-derived cell-free DNA (GcfDNA), which is released into the blood stream by necrotic and apoptotic cells, is a promising noninvasive organ integrity biomarker. In liver transplantation (LTx), neither conventional liver function tests (LTFs) nor immunosuppressive drug monitoring are very effective for rejection monitoring. We therefore hypothesized that the quantitative measurement of donor-derived cell-free DNA (cfDNA) would have independent value for the assessment of graft integrity, including damage from acute rejection...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28405598/clearance-of-bk-virus-nephropathy-by-combination-antiviral-therapy-with-intravenous-immunoglobulin
#13
Kathy Kable, Carmen D Davies, Philip J O'connell, Jeremy R Chapman, Brian John Nankivell
BACKGROUND: Reactivation of BK polyoma virus causes a destructive virus allograft nephropathy (BKVAN) with graft loss in 46%. Treatment options are limited to reduced immunosuppression and largely ineffective antiviral agents. Some studies suggest benefit from intravenous immunoglobulin (IVIG). METHODS: We evaluated effectiveness of adjuvant IVIG to eliminate virus from blood and tissue, in a retrospective, single-center cohort study, against standard-of-care controls...
April 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28390067/tubulointerstitial-expression-and-urinary-excretion-of-connective-tissue-growth-factor-3-months-after-renal-transplantation-predict-interstitial-fibrosis-and-tubular-atrophy-at-5-years-in-a-retrospective-cohort-analysis
#14
Thomas Vanhove, Hiroshi Kinashi, Tri Q Nguyen, Christoph Metalidis, Koen Poesen, Maarten Naesens, Evelyne Lerut, Roel Goldschmeding, Dirk R J Kuypers
Connective tissue growth factor (CTGF) is an important mediator of renal allograft fibrosis, and urinary CTGF (CTGFu) levels correlate with the development of human allograft interstitial fibrosis. We evaluated the predictive value of CTGF protein expression in 160 kidney transplant recipients with paired protocol biopsies at 3 months and 5 years after transplantation. At month 3 and year 1, CTGFu was measured using ELISA, and biopsies were immunohistochemically stained for CTGF, with semiquantitative scoring of tubulointerstitial CTGF-positive area (CTGFti)...
April 8, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28370148/the-serial-duplex-index-improves-differential-diagnosis-of-acute-renal-transplant-dysfunction
#15
Markus Meier, Lutz Fricke, Katrin Eikenbusch, Emma Smith, Jan Kramer, Hendrik Lehnert, Martin Nitschke
OBJECTIVES: Renal duplex sonography represents a standard noninvasive diagnostic procedure to demonstrate morphologic changes in acute kidney transplant dysfunction. We investigated whether a newly developed serial duplex index (SDI) can differentiate between acute cellular rejection and acute vascular rejection more effectively than the established Doppler parameters of the resistive index (RI) and pulsatility index (PI) in recently transplanted patients. METHODS: Serial duplex scans of patients with histologically proven acute tubular necrosis (n = 25), acute cellular rejection (n = 28), acute vascular rejection (n = 18), and normal graft function (n = 50, partially protocol biopsied) were retrospectively analyzed...
April 3, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28369969/a-rare-potentially-life-threatening-presentation-of-passenger-lymphocyte-syndrome
#16
Thomas J Gniadek, Andrea M McGonigle, R Sue Shirey, Patricia A Brunker, Michael Streiff, Benjamin Philosophe, Evan M Bloch, Paul M Ness, Karen E King
BACKGROUND: Passenger lymphocyte syndrome occurs when donor lymphocytes are transplanted with a solid organ and produce alloantibodies that react with antigens on the recipient's red blood cells (RBCs). Typically, passenger lymphocyte syndrome presents as immunoglobulin G antibody-mediated, extravascular hemolytic anemia with reticulocytosis. Often, the donor was alloimmunized before transplantation. CASE REPORT: A 34-year-old Group O, D+ man with a negative antibody screen received a liver transplant from a Group O, D- donor...
May 2017: Transfusion
https://www.readbyqxmd.com/read/28366875/dual-role-of-muc1-mucin-in-kidney-ischemia-reperfusion-injury-nephroprotector-in-early-phase-but-pro-fibrotic-in-late-phase
#17
Jean-Baptiste Gibier, Brigitte Hémon, Mélanie Fanchon, Kelly Gaudelot, Nicolas Pottier, Bélinda Ringot, Isabelle Van Seuningen, François Glowacki, Christelle Cauffiez, David Blum, Marie-Christine Copin, Michaël Perrais, Viviane Gnemmi
Acute kidney injury (AKI) is characterized by acute tubular necrosis (ATN) which involves mainly proximal tubules. Past AKI is associated with higher risk of chronic kidney disease (CKD). The MUC1 mucin is a large glycoprotein responsible for epithelial protection and locates to convoluted distal tubules and collecting ducts. Since MUC1 activates the epithelial-mesenchymal transition (EMT) in carcinoma cells, we hypothesized that MUC1 could be involved in epithelial tubular cell plasticity, a process that not only accompanies epithelial repair, but also participates into kidney fibrosis, histological substratum of CKD...
March 31, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28366698/steroid-free-immunosuppression-is-associated-with-enhanced-th1-transcripts-in-kidney-transplantation
#18
Petra Hruba, Irena Tycova, Eva Krepsova, Eva Girmanova, Alena Sekerkova, Janka Slatinska, Ilja Striz, Eva Honsova, Ondrej Viklicky
BACKGROUND: Steroid avoidance in immunosuppression in kidney transplantation offers several metabolic advantages, however it is associated with higher early acute rejection rate. Cellular and molecular mechanisms of this phenomenon remain poorly understood. METHODS: In this single center observational study, low-risk kidney transplant recipients randomized into large multicenter prospective ADVANCE trial with steroid avoidance/early withdrawal and center standard of care treated patients were monitored for 12months...
March 30, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28360525/the-importance-of-a-multidisciplinary-approach-to-hepatocellular-carcinoma
#19
REVIEW
Osama Siddique, Eric R Yoo, Ryan B Perumpail, Brandon J Perumpail, Andy Liu, George Cholankeril, Aijaz Ahmed
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. The rising incidence, genetic heterogeneity, multiple etiologies, and concurrent chronic liver diseases make diagnosis, staging, and selection of treatment options challenging in patients with HCC. The best approach to optimize the management of HCC is one that utilizes a core multidisciplinary liver tumor board, consisting of hepatologists, pathologists, interventional radiologists, oncologists, hepatobiliary and transplant surgeons, nurses, and general practitioners...
2017: Journal of Multidisciplinary Healthcare
https://www.readbyqxmd.com/read/28340817/efficacy-and-safety-of-atg-fresenius-as-an-induction-agent-in-living-donor-kidney-transplantation
#20
M Yilmaz, T Ö Sezer, E Günay, I Solak, A Çeltik, C Hoşcoşkun, H Töz
BACKGROUND: Induction therapy is mostly recommended for deceased-donor transplantation, whereas it has some controversies in live-donor transplantation. In this study, we described the outcomes of live-donor renal transplant recipients who received ATG-Fresenius (ATG-F) induction. METHODS: Live-donor transplantations in patients over 18 years old with ATG-F induction between 2009 and 2015 were included. All patients received quadruple immunosuppression, one of which was ATG-F induction...
April 2017: Transplantation Proceedings
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