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American Transplant Congress abstracts

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  • 2022 American Transplant Congress

    Longitudinal Mortality Risks and Renal Functional Outcomes in Living Kidney Donors

    K. Hotta1, T. Osawa1, I. Yokota2, T. Inao2, T. Tanabe1, N. Iwahara1, N. Shinohara1

    1Urology, Hokkaido University Hospital, Sapporo, Japan, 2Biostatistics, Hokkaido University Graduate School of Medicine, Sapporo, Japan

    *Purpose: Previous studies have suggested that living kidney donors do not have a higher risk of death or end-stage kidney disease (ESKD) than the general…
  • 2022 American Transplant Congress

    Modification of Gut Microbiota Accelerates Kidney Repair After Experimental Ischemia Reperfusion Injury

    S. Gharaie, K. Lee, S. Noel, L. Arend, H. Rabb

    Johns Hopkins Medicine, Baltimore, MD

    *Purpose: Kidney ischemia reperfusion injury (IRI) leads to changes in gut microbiome, and pre-IR microbiome changes can modify course of experimental tissue injury. There is…
  • 2022 American Transplant Congress

    Long-Term Kidney Allotransplant Acceptance is Defined by a Shift from a T Cell to a B Cell Rich Immune Microenvironment Within the Graft

    E. S. Szuter1, T. Yokose1, M. T. Guinn1, J. Ge2, I. Rosales3, B. Kwon4, P. S. Russell1, A. Cuenca2, D. Kreisel5, P. Sage6, J. C. Madsen1, R. B. Colvin3, A. Alessandrini1

    1Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, 2Department of Surgery, Boston Children's Hospital, Boston, MA, 3Department of Pathology, Massachusetts General Hospital, Boston, MA, 4Harvard College, Cambridge, MA, 5Department of Surgery, Washington University, St. Louis, MO, 6Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Boston, MA

    *Purpose: Mouse kidney allografts are spontaneously accepted in select, fully-mismatched donor-recipient strain combinations, such as DBA/2J to C57BL/6 (B6). Tolerant renal grafts develop aggregates of…
  • 2022 American Transplant Congress

    An Acceptable Challenge for Specialized Transplant Centres: Small Kidney Donors for Small Recipients

    R. Büscher, M. Cetiner, P. F. Hoyer, A. K. Büscher

    Department of Pediatrics II, University Hospital Essen, Essen, Germany

    *Purpose: Kidneys from small donors (SDK, donor weight
  • 2022 American Transplant Congress

    Impact of Target Tacrolimus Levels on BK Polyomavirus DNAemia and Allograft Rejection Among Pediatric Kidney Transplant Recipients

    H. Huang1, P. Winterberg1, R. George1, A. Serluco2, R. Liverman2, I. Yildirim3, R. Garro1

    1Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, 2Children's Healthcare of Atlanta, Atlanta, GA, 3Yale University School of Medicine, New Haven, CT

    *Purpose: BK Polyomavirus (BK) DNAemia is a serious and common infectious complication after kidney transplant (KT). We evaluated the impact of targeting lower tacrolimus levels…
  • 2022 American Transplant Congress

    Single Blind Randomized Controlled Trial Comparing BNT162b2 Vs JNJ-78436735 Vaccine As An Additional Dose After Two Doses Of BNT162b2 Vaccine In Solid Organ Transplant (SOT) Recipients

    Y. Natori1, E. Martin2, A. Mattiazzi3, J. Bini Viotti1, K. S. Ortecho4, S. Pallikkuth5, S. Anjan1, J. Simkins1, G. Guerra3

    1Department of Medicine, Division of Infectious Diseases, University of Miami, Miami, FL, 2Department of Medicine, Division of Hepatology, University of Miami, Miami, FL, 3Department of Medicine, Division of Nephrology, University of Miami, Miami, FL, 4Miami Transplant Institute, Jackson Health System, Miami, FL, 5University of Miami, Miami, FL

    *Purpose: Even though a high efficacy and immunogenicity of COVID-19 vaccines have been reported in the general population, vaccine immunogenicity is suboptimal in SOT recipients…
  • 2022 American Transplant Congress

    The Impact of Donor Nephrectomy on the Living Donors Aged 75 Years and Older

    T. Hiramitsu, T. Tomosugi, K. Futamura, M. Okada, N. Goto, T. Ichimori, S. Narumi, Y. Watarai

    Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan

    *Purpose: Due to the profound organ shortage, number of living donor kidney transplantation (LDKT) from elder living donor (LD) is increasing. However, there has been…
  • 2022 American Transplant Congress

    The Role of Donor Sex in Females Undergoing Repeat Kidney Transplant: Does Prior Donor Sex Matter?

    S. Craig1, K. Tennankore2, A. J. Vinson2

    1Dalhousie University, Halifax, NS, Canada, 2Nova Scotia Health Authority, Halifax, NS, Canada

    *Purpose: Female recipients of male donor kidneys are at increased risk for graft failure compared with all other donor-recipient sex pairings. The presumed mechanism relates…
  • 2022 American Transplant Congress

    Higher Proinflammatory Cytokines Are Associated with Increased Antibody Titer After a Third Dose of SARS-CoV-2 Vaccine in Solid Organ Transplant Recipients

    A. H. Karaba1, X. Zhu1, S. E. Benner1, O. Akinde1, Y. Eby1, K. H. Wang1, S. Saraf2, J. M. Garonzik-Wang3, S. L. Klein1, J. R. Bailey1, A. L. Cox1, J. N. Blankson1, C. M. Durand1, D. L. Segev1, W. A. Werbel1, A. A. Tobian1

    1Johns Hopkins University, Baltimore, MD, 2National Institute of Allergy and Infectious Diseases, Bethesda, MD, 3University of Wisconsin School of Medicine and Health, Madison, WI

    *Purpose: Solid organ transplant recipients (SOTRs) are at increased risk for severe COVID-19 and exhibit lower antibody responses to SARS-CoV-2 vaccines. This study aimed to…
  • 2022 American Transplant Congress

    Single Cell RNAseq Analysis of Liver Transplant Rejection Reveals Highly Restricted TCR Clonal Expansion of Tissue-Resident Memory CD8+ T Cells That Persist Despite Corticosteroids and ATG Therapy

    A. L. Peters1, G. Begum1, K. Roskin2, E. Woodle3, D. Hildeman4

    1Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 2Department of Bioinformatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 3Department of Surgery, University of Cincinnati, Cincinnati, OH, 4Department of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH

    *Purpose: Conventional therapy for liver transplant rejection (corticosteroids and ATG) has remained unchanged for six decades, and is not infrequently met with treatment failure. Here,…
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