ATC Abstracts

American Transplant Congress abstracts

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  • 2015 American Transplant Congress

    Activation of FXR Protects Against Liver Ischemia and Reperfusion Injury (IRI) in Mice Via the PI 3-Kinase/Akt (PI3K/Akt) Pathway

    J. Zhang,1 X. Liu,2 D. Li,1 H. Dai,1 J. Zhang,1 T. Lu,1 Q. Xia.1

    1Liver Transplantation Center, Renji Hospital, Shanghai, China; 2Cardiovascular, Shanghai First People/s Hospital, Shanghai, China.

    Background: FXR is a ligand-dependent transcription factor belonging to the nuclear hormone receptor superfamily, which plays important roles in lipid metabolism, glucose homeostasis, inflammatory responses…
  • 2015 American Transplant Congress

    CD52-Negative NK Cells Are Abundant in the Liver and Less Susceptible to Alemtuzumab Treatment

    R. Hotta,1 M. Ohira,2 T. Matsuura,1 I. Muraoka,1 P. Tryphonopoulos,1 J. Fan,1 A. Tekin,1 H. Ohdan,2 A. Tzakis,3 R. Vianna,1 S. Nishida.1

    1University of Miami, Miami, FL; 2Hiroshima University, Hiroshima, Japan; 3Cleveland Clinic Florida, Weston, FL.

    Background: T-cell depleting strategies have become an integral part of immunosuppressive regimens in organ transplantation. Alemtuzumab is a humanized monoclonal antibody against CD52, a cell-surface…
  • 2015 American Transplant Congress

    Plasma 4β-Hydroxycholesterol Measurement as a Potential Biomarker for CYP3A5 Activity in Informing Tacrolimus Dosing

    T. Elnahhas,1,2 E. de Jonge,4 T. Lee,2 B. van Zelst,4 J. Popoola,3 R. Ramkhelawon,3 R. van Schaik,4 A. Johnston,1,2 I. MacPhee.3

    1Clinical Pharmacology, Queen Mary University of London, London, United Kingdom; 2Analytical Services International, St.George's University of London, London, United Kingdom; 3Institute of Medical and Biomedical Education-Renal Medicine, St.George's University of London, London, United Kingdom; 4Clinical Chemistry, Erasmus MC Rotterdam, Rotterdam, Netherlands.

    Background—Recently, 4β-hydroxycholesterol (4β-OHC) has been shown to be an endogenous marker of P450 3A activity in clinical practice (Diczfalusy et al, 2011). 4β-OHC concentration increases…
  • 2015 American Transplant Congress

    "What's the Mileage?" Determining the Length of Time in Which Renal Function Returns to Pre-Calcineurin Discontinuation Levels in Patients With Interstitial Fibrosis

    A. Diez, J. Von Visger, U. Nori, T. Pesavento, M. Henry, E. Davies, R. Pelletier.

    The Ohio State University, Columbus.

    Calcineurin Inhibitors (CNI) use may be associated with progressive renal dysfunction. Clinical trials have shown that CNI minimization or discontinuation may aid in improvement in…
  • 2015 American Transplant Congress

    Reduction of Tacrolimus With Everolimus Addition in Maintenance Immunosuppression Improves Calcineurin Inhibitor-Induced Arteriolopathy in Kidney Allografts

    M. Miura,1 H. Higashiyama,1 Y. Fukasawa.2

    1Department of Renal Transplant Surgery, Sapporo Hokuyu Hospital, Sapporo, Japan; 2Department of Pathology, Sapporo City General Hospital, Sapporo, Japan.

    Objectives: Although conversion of calcineurin inhibitor (CNI)-based immunosuppression to everolimus (EVR) has been shown to improve graft function, no histopathological evidence has been reported. The…
  • 2015 American Transplant Congress

    Vitamin D Supplementation and Acute Rejection Following Kidney Transplantation

    T. Horwedel,1 K. Botkin,1 J. Hagopian,1 L. Bowman,1 D. Brennan.2

    1Barnes-Jewish Hospital, St. Louis, MO; 2Washington University in St. Louis, St. Louis, MO.

    Purpose: Low serum levels of vitamin D have been associated with deleterious effects post-transplantation, including increased risk of rejection. Low serum vitamin D levels are…
  • 2015 American Transplant Congress

    Characteristics and Outcomes of Patients With Incidental Hepatocellular Carcinoma Detected in the Explanted Liver Following Transplant

    M. Goh, J. Ali, G. Pettigrew.

    Department of Surgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, United Kingdom.

    Introduction: Despite pre-operative cross-sectional imaging, incidental hepatocellular carcinoma (iHCC) is sometimes diagnosed upon histological examination of the liver explant following transplantation for another indication. Whilst…
  • 2015 American Transplant Congress

    Health Utilities in Pediatric Liver Transplant Recipients

    S. Mohammad, A. Bharij, K. Neighbors, E. Alonso.

    Pediatrics, Northwestern U, Chicago.

    Health Utilities (HU) are preference based measures of health states required for cost effectiveness studies. We measured HU and health related quality of life (HRQOL)…
  • 2015 American Transplant Congress

    Home Dried Blood Spot Monitoring; a New Tool for Measuring Variability in Tacrolimus Blood Levels Over Time

    A. Al-Uzri, K. Freeman, K. Clark, L. Bleyle, S. Iragorri, R. Jenkins, D. Rozansky, D. Koop.

    Oregon Health & Science University, Portland, OR.

    PURPOSE: The measurement of variability in Tacrolimus (TAC) blood trough levels has been proposed to reflect the consistency with medication intake and adherence. A standard…
  • 2015 American Transplant Congress

    Identification of CXCR5+EBV-Specific CD8+ T Cells in Peripheral Blood of Pediatric Heart Transplant Recipients Correlates With IL-21 Production and EBV Reactivation

    C. Macedo,1 K. Hadi,1 D. Rowe,2 J. Luce,3 S. Webber,4 B. Feingold,3 D. Metes.1

    1Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh; 2Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh; 3Pediatrics-Cardiology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh; 4Pediatrics, Vanderbilt University School of Medicine, Nashville.

    Approximately 70% of EBV asymptomatic pediatric heart transplant (HTx) recipients carry chronic EBV loads in peripheral blood. These EBV loads may occur due to impaired…
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