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Articles tagged "Histology"

  • 2020 American Transplant Congress

    The Composite Molecular and Cellular Instability Score Identifies the Sub-Phenotypes of Histologically Stable Kidney Transplants

    D. Rychkov

    Department of Surgery, BCHSI, University of California San Francisco, San Francisco, CA

    *Purpose: Recent molecular studies have highlighted the unrecognized burden of sub-clinical graft rejection of a histologically stable allograft, defined as transplants with absence of clinical…
  • 2020 American Transplant Congress

    Risk of Histological Relapse in Patients with Monoclonal Gammopathy of Renal Significance after Kidney Transplantation

    A. Bentall1, C. Heybeli2, F. G. Cosio1, M. El Ters1, N. Leung1, M. P. Alexander3

    1Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, 2Department of Internal Medicine, Dokuz Eylul University, Izmir, Turkey, 3Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN

    *Purpose: There is increased recognition of Monoclonal Gammopathy of Renal Significance (MGRS) but data on kidney transplant (ktx)outcomes are lacking. We assessed KTX outcomes of…
  • 2020 American Transplant Congress

    Calibration of Donor-Derived Cell-Free DNA Criteria for Rejection with Molecular Diagnoses of Kidney Transplant Biopsies

    I. Moinuddin1, D. Kumar1, L. Kamal1, A. King1, L. Kang1, M. Levy1, S. Bobba1, D. Massey1, P. Halloran2, G. Gupta1

    1Virginia Commonwealth University, Richmond, VA, 2Alberta Transplant Genomics Applied Centre, Edmonton, AB, Canada

    *Purpose: Traditional microscopic histopathologic assessment (HDx) can be prone to error due to inter-observer variability as well as the non-specificity of some histologic lesions. Donor-derived…
  • 2020 American Transplant Congress

    Chronic Active T-Cell Mediated Rejection is Variably Responsive to Immunosuppressive Therapy

    V. Kung1, M. Haas1, M. Gillespie2, E. Huang2, R. Sandhu2

    1Pathology, Cedars-Sinai Medical Center, Los Angeles, CA, 2Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA

    *Purpose: Chronic active T cell-mediated rejection (CACMR) is a newly described variant of kidney allograft rejection associated with long-term graft loss. A key histologic feature…
  • 2020 American Transplant Congress

    Accelerated Decline in Glomerular Density: An Unrecognized Pathologic Process after Kidney Transplantation

    A. Denic, B. H. Smith, W. D. Park, M. V. Luhman, M. P. Alexander, A. D. Rule, M. D. Stegall

    Mayo Clinic, Rochester, Rochester, MN

    *Purpose: Studies in healthy adults have shown that glomerular density slowly declines with older age (-0.5% per decade), and globally sclerotic glomeruli (GSG) slowly increase…
  • 2020 American Transplant Congress

    Kidney Cortical Wedge Biopsies for Human Organ Research: Does Anatomic Variability Impact Their Utility?

    C. M. Edwards1, J. T. Langford1, M. Reschke2, J. R. DiRito1, D. Mulligan1, D. Haakinson1, G. T. Tietjen1

    1Surgery, Yale School of Medicine, New Haven, CT, 2Biomedical Engineering, Yale University, New Haven, CT

    *Purpose: The purpose of this study is to characterize human kidney anatomic variability both within singular biopsies and between biopsy sites in order to investigate…
  • 2020 American Transplant Congress

    Computer-Assisted Cardiac Histologic Evaluation (CACHE) for Grading Cardiac Allograft Rejection

    E. Peyster1, S. ArabYarmohommadi2, A. Janowczyk2, M. Sekulic3, C. Cassol4, M. Feldman1, K. Margulies1, A. Madabhushi2

    1University of Pennsylvania, Philadelphia, PA, 2Case Western Reserve University, Cleveland, OH, 3University Hospitals Cleveland Medical Center, Cleveland, OH, 4Ohio State University, Columbus, OH

    *Purpose: Cardiac allograft rejection (CAR) is a serious concern in heart transplantation, occurring in 30-40% of patients during the first year. Endomyocardial biopsy (EMB) with…
  • 2019 American Transplant Congress

    Eculizumab Deposition in Renal Transplants

    D. WANG1, S. H. Nasr1, A. B. Farris2, C. A. Schinstock3, M. P. Alexander1, L. D. Cornell1

    1Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 2Pathology & Laboratory Medicine, Emory University, Atlanta, GA, 3Division of Nephrology & Hypertension, Department of Internal Medicine, Mayo Clinic, Rochester, MN

    *Purpose: Eculizumab is a recombinant humanized IgG monoclonal antibody that inhibits C5, thereby preventing the activation of C5a and formation of membrane attack complex C5b-C9.…
  • 2019 American Transplant Congress

    Kinetics of Pretransplant DSA, Post-Transplant Histology, and Graft Failure after Kidney Transplantation

    A. Senev1, E. Lerut2, V. Van Sandt3, J. Callemeyn1, M. Coemans1, B. Sprangers2, D. Kuypers2, M. Emonds1, M. Naesens2

    1Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium, 2University Hospitals Leuven, Leuven, Belgium, 3Histocompatibility and Immunogenetics Laboratory, Belgian Red Cross-Flanders, Mechelen, Belgium

    *Purpose: The association between the kinetics of pretransplant DSA levels and outcome after kidney transplantation is currently not well known. In this large cohort study…
  • 2019 American Transplant Congress

    Recurrent Diabetic Nephropathy Despite Intensive Glycemic Control: An Observational Cohort Study

    M. Coemans, E. Van Loon, E. Lerut, D. Kuypers, B. Sprangers, P. Gillard, C. Mathieu, G. Verbeke, M. Naesens

    KU Leuven, Leuven, Belgium

    *Purpose: After kidney transplantation, recurrence of diabetic nephropathy has been reported. The presentation and kinetics of recurrent diabetic nephropathy and its risk factors remain however…
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