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Articles tagged "Gene polymorphism"

  • 2022 American Transplant Congress

    Significance of Gene Polymorphism on Infectious Complications and Rejection After Liver Transplantation

    H. Egawa1, T. Kato1, Y. Kotera1, Y. Hirata1, S. Yamashita1, S. Ariizumi1, T. Ishizuka1, Y. Tanaka2, H. Ohdan3

    1Tokyo Women's Medical University, Tokyo, Japan, 2Surgery, Hiroshima University, Hiroshima, Japan, 3Hiroshima University, Hiroshima, Japan

    *Purpose: Clinical application of gene polymorphism is a key of precision medicine in the field of organ transplantation. Hiroshima group reported significance of Fc-gamma receptor…
  • 2022 American Transplant Congress

    Recipient MCPggaac Haplotype is Associated with Poor Graft Survival in Recipients with De Novo Thrombotic Microangiopathy

    V. Petr1, D. Csuka2, P. Hruba3, Á. Szilágyi2, Z. Prohászka2, O. Viklicky1

    1Dept. of Nephrology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic, 2Dept. of Medicine and Hematology, Semmelweis University, Budapest, Hungary, 3Transplant Laboratory, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

    *Purpose: De novo thrombotic microangiopathy (TMA) is associated with poor kidney graft survival. We aimed to assess the role of common complement haplotypes in kidney…
  • 2021 American Transplant Congress

    A Single Nucleotide Polymorphism within the FCGR3A 158 F/V Gene is Associated with Decreased Survival of Renal Allografts with Chronic Active Antibody-Mediated Rejection

    N. H. Litjens, A. M. Peeters, J. A. Kal-van Gestel, M. Klepper, M. G. Betjes

    Internal Medicine, Nephrology and Transplantation, Erasmus MC, University Medical Center, Rotterdam, Netherlands

    *Purpose: Long-term allograft survival has shown little improvement over the last decades. An important factor compromising long-term allograft survival in kidney transplantation is chronic active…
  • 2021 American Transplant Congress

    Cyp3a5 Extensive Metabolizer Phenotype May be Associated with an Increase in Class 2 Donor Specific Antibodies and Antibody-Mediated Rejection

    S. Mirza1, N. Wilson2, J. Van Zyl2, P. Nguyen2, T. Sam2, S. Hall2, M. Askar2, R. Patel2

    1Texas Tech Univeristy Health Sciences Center Jerry H. Hodge School of Pharmacy, Dallas, TX, 2Baylor University Medical Center at Dallas, Dallas, TX

    *Purpose: Tacrolimus (TAC) metabolism is highly dependent on CYP3A5, yet there is limited data on the effect of CYP3A5 genetic polymorphisms in heart transplant recipients…
  • 2021 American Transplant Congress

    Higher Number of Tacrolimus Dose Adjustments and Trough Level Measurements in Kidney Transplant Recipients with CYP3A5*1 Alleles

    K. Reininger1, G. Onyeaghala2, T. Anderson-Haag1, B. Wu2, W. Guan2, C. R. Dorr2, R. Remmel2, R. Mannon3, A. Matas2, W. Oetting2, A. Israni1, P. Stahler1, P. Jacobson2

    1Hennepin County Medical Center, Minneapolis, MN, 2University of Minnesota, Minneapolis, MN, 3University of Nebraska Medical Center, Omaha, NE

    *Purpose: Tacrolimus (TAC) metabolism is dependent on the functional status of the cytochrome P450 family enzyme CYP3A5 which has three common loss of function (LoF)…
  • 2021 American Transplant Congress

    Extreme Phenotype Sampling and Next Generation Sequencing to Identify Genetic Variants Associated with Tacrolimus Metabolism in African American Kidney Transplant Recipients

    C. R. Dorr1, B. Guo2, B. Wu2, J. Abrahante2, D. Schladt3, R. Remmel2, W. Guan2, A. Muthusamy3, G. Onyeaghala3, N. Pankratz2, A. Matas2, R. Mannon4, W. Oetting2, P. Jacobson2, A. K. Israni3

    1Hennepin Healthcare Research Institute, Minneapolis, MN, 2University of Minnesota, Minneapolis, MN, 3Nephrology, Hennepin Healthcare Research Institute, Minneapolis, MN, 4University of Nebraska Medical Center, Omaha, NE

    *Purpose: Tacrolimus (TAC) pharmacogenomics studies identified common genetic variants that alter TAC troughs suggesting strategic dosing for specific populations. Common variants and clinical factors explain…
  • 2020 American Transplant Congress

    Gasdermin-D Mutation is Protective against Renal Ischemia Reperfusion Injury

    J. Li, N. Rogers, S. Alexander

    Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, Australia

    *Purpose: Pyroptosis, a pro-inflammatory form of cell death, is dependent on membrane pore formation through the assembly of cleaved Gasdermin-D molecules. We hypothesized that this…
  • 2020 American Transplant Congress

    Combining Pharmacy and Genome-Wide Genotyping Data to Examine Medication Regimen Complexity Indices (MRCI), Drug-Drug and Gene-Drug Interactions in Transplant Patients

    L. Callans, J. Obayemi, H. Gao, A. Shaked, B. Chang, B. Keating

    Penn Transplant Institute, Hospital of the University of Pennsylvania, Philadelphia, USA, Philadelphia, PA

    *Purpose: Polypharmacy, typically defined as the use of five or more medications, is a barrier to adherence, and the resulting complex medication regimens result in…
  • 2020 American Transplant Congress

    Impact of CYP3A5 Phenotype on Early Time in Therapeutic Range among Pediatric Renal and Heart Transplant Recipients

    A. Leino, A. Pasternak

    University of Michigan, Ann Arbor, MI

    *Purpose: Tacrolimus time in therapeutic range (TTR) as a measure of intra-patient variability has been associated with poor long-term outcomes. Multiple factors may contribute to…
  • 2020 American Transplant Congress

    FcγRIIIb Inhibits Renal Transplant Rejection by Inducing Neutrophils Apoptosis

    J. Zhang, J. Chen

    Kidney Disease Center, The First Affiliated Hospital of Zhejiang University, Hangzhou, China

    *Purpose: Fcγ receptors (FcγR) have been proposed to be involved in the pathogenesis of acute rejection (AR) after organ transplantation. However, the mechanisms by which…
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