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KMID : 1141520200350040820
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Endocrinology and Metabolism
2020 Volume.35 No. 4 p.820 ~ p.829
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Insulin Secretion and Insulin Resistance Trajectories over 1 Year after Kidney Transplantation: A Multicenter Prospective Cohort Study
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Bang Jun-Bae
Oh Chang-Kwon
Kim Yu-Seun
Kim Sung-Hoon
Yu Hee-Chul
Kim Chan-Duck
Ju Man-Ki
So Byung-Jun
Lee Sang-Ho
Han Sang-Youb
Jung Cheol-Woong
Kim Joong-Kyung
Lee Su-Hyung
Jeon Ja-Young
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Abstract
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Background: We investigated the changing patterns of insulin secretion and resistance and risk factors contributing to the development of post-transplant diabetes mellitus (PTDM) in kidney recipients under tacrolimus-based immunosuppression regimen during 1 year after transplantation.
Methods: This was a multicenter prospective cohort study. Of the 168 subjects enrolled in this study, we analyzed a total 87 kidney transplant recipients without diabetes which was assessed by oral glucose tolerance test before transplantation. We evaluated the incidence of PTDM and followed up the index of insulin secretion (insulinogenic index [IGI]) and resistance (homeostatic model assessment for insulin resistance [HOMA-IR]) at 3, 6, 9 months, and 1 year after transplantation by oral glucose tolerance test and diabetes treatment. We also assessed the risk factors for incident PTDM.
Results: PTDM developed in 23 of 87 subjects (26.4%) during 1 year after transplantation. More than half of total PTDM (56.5%) occurred in the first 3 months after transplantation. During 1 year after transplantation, insulin resistance (HOMA-IR) was increased in both PTDM and no PTDM group. In no PTDM group, the increase in insulin secretory function to overcome insulin resistance was also observed. However, PTDM group showed no increase in insulin secretion function (IGI). Old age, status of prediabetes and episode of acute rejection were significantly associated with the development of PTDM.
Conclusion: In tacrolimus-based immunosuppressive drugs regimen, impaired insulin secretory function for reduced insulin sensitivity contributed to the development of PTDM than insulin resistance during 1 year after transplantation.
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KEYWORD
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Glucose tolerance test, Diabetes mellitus, Kidney transplantation, Insulin secretion
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