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논문 기본 정보

자료유형
학술저널
저자정보
Kim Suh Min (Department of Surgery Chung-Ang University College of Medicine Seoul Korea.) Lim Younggyun (Seoul National University Biomedical Informatics (SNUBI) Division of Biomedical Informatics Seoul N) Min Sangil (Department of Surgery Seoul National University College of Medicine Seoul Korea.) Min Byung-Joo (Seoul National University Biomedical Informatics (SNUBI) Division of Biomedical Informatics Seoul N) Seo Myung-Eui (Seoul National University Biomedical Informatics (SNUBI) Division of Biomedical Informatics Seoul N) Lee Kye Hwa (Department of Information Medicine Asan Medical Center University of Ulsan College of Medicine Seou) Kim Ju Han (Seoul National University Biomedical Informatics (SNUBI) Division of Biomedical Informatics Seoul N) Ha Jongwon (Department of Surgery Seoul National University College of Medicine Seoul Korea.Transplantation Res)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.37 No.5
발행연도
2022.2
수록면
1 - 11 (11page)
DOI
10.3346/jkms.2022.37.e33

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Background: Tacrolimus is the most commonly used immunosuppressive drug in solid organ transplantation. After administering a conventional twice-daily dose of tacrolimus, peak levels were achieved within the first 1.5 to 2 hours. A group of patients showed different early absorption phase of tacrolimus after kidney transplantation. Methods: Trough(C0) and 1.5-hour blood levels (C1.5) of tacrolimus were measured in 95 kidney transplantation recipients. Patients with a C1.5/C0 < 1.5 and > 1.5 were defined as those having flat pattern peaks and as controls, respectively. Transplantation outcomes were compared between the groups. Whole exome sequencing was performed to investigate the genetic susceptibility to flat pattern peaks. Results: Twenty-eight patients showed flat pattern peaks. The mean C1.5/C0 values were 1.13 ± 0.22 and 3.78 ± 1.25 in the flat pattern peak and control groups, respectively. In multivariate analysis, flat pattern peak was an independent risk factor for biopsy-proven acute rejection (BPAR) and/or borderline change (P = 0.014). Patients having flat pattern peaks showed significantly lower post-transplant 36-month estimated glomerular filtration rate (P = 0.001). Two single nucleotide variants in ABCB1 genes, rs1922242 and rs2235035, were associated with flat pattern peaks (P = 0.019 and P = 0.027, respectively). Conclusion: Both of C1.5 and C0 should be measured to distinguish the patients showing unique initial absorption. A C1.5/C0 ratio lower than 1.5 was associated with an increased risk of BPAR and/or borderline change. Single nucleotide variants s in ABCB1 gene might influence the flat pattern peaks of tacrolimus absorption.

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