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Comparison of Glucose Tolerance between Kidney Transplant Recipients and Healthy Controls.

ABSTRACT: Post-transplant hyperglycemia and new-onset diabetes mellitus after transplantation (NODAT) are common and important metabolic complications. Decreased insulin secretion and increased insulin resistance are important to the pathophysiologic mechanism behind NODAT. However, the progression of glucose intolerance diagnosed late after kidney transplantation remains clearly unknown. Enrolled in this study were 94 kidney transplant recipients and 134 kidney transplant donors, as the healthy controls, who were treated at our institution. The 75 g-oral glucose tolerance test (OGTT) was performed in the recipients, and the healthy controls received an OGTT before donor nephrectomy. We assessed the prevalence of glucose intolerance including impaired fasting glucose and/or impaired glucose tolerance, as well as insulin secretion and insulin resistance using the homeostasis model assessment, and compared the results between the two groups. Multivariate analysis after adjustment for age, gender, body mass index, estimated glomerular filtration rate, and systolic blood pressure showed that the prevalence of glucose intolerance, insulin resistance, insulin secretion, and 2 h plasma glucose levels were significantly higher in the kidney transplant recipients compared to the healthy controls. Elevation of insulin secretion in kidney transplant recipients may be compensatory for increase of insulin resistance. Impaired compensatory pancreas ? cell function may lead to glucose intolerance and NODAT in the future.

SUBMITTER: Shimada H

PROVIDER: S-EPMC6678426 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Comparison of Glucose Tolerance between Kidney Transplant Recipients and Healthy Controls.

Shimada Hisao H Uchida Junji J Nishide Shunji S Kabei Kazuya K Kosoku Akihiro A Maeda Keiko K Iwai Tomoaki T Naganuma Toshihide T Takemoto Yoshiaki Y Nakatani Tatsuya T

Journal of clinical medicine 20190627 7

Post-transplant hyperglycemia and new-onset diabetes mellitus after transplantation (NODAT) are common and important metabolic complications. Decreased insulin secretion and increased insulin resistance are important to the pathophysiologic mechanism behind NODAT. However, the progression of glucose intolerance diagnosed late after kidney transplantation remains clearly unknown. Enrolled in this study were 94 kidney transplant recipients and 134 kidney transplant donors, as the healthy controls, ...[more]

PMID: 31252561

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Project description:Survival of solid organ grafts depends on life-long immunosuppression, which results in increased rates of infection and malignancy. Induction of tolerance to allografts would represent the optimal solution for controlling both chronic rejection (CR) and side effects of immunosuppression. Although spontaneous ‘‘operational tolerance’’ can occur in human kidney transplantation, the lack of noninvasive peripheral blood biological markers of this rare phenomenon precludes the identification of potentially tolerant patients in whom immunosuppression could be tapered as well as the development of new tolerance inducing strategies. Here, the potential of high throughput microarray technology to decipher complex pathologies allowed us to study the peripheral blood specific gene expression profile and corresponding EASE molecular pathways associated to operational tolerance in a cohort of human kidney graft recipients. In comparison with patients with CR, tolerant patients displayed a set of 343 differentially expressed genes, mainly immune and defense genes, in their peripheral blood mononuclear cells (PBMC), of which 223 were also different from healthy volunteers. Using the expression pattern of these 343 genes, we were able to classify correctly >80% of the patients in a cross-validation experiment and classified correctly all of the samples over time. Collectively, this study identifies a unique PBMC gene signature associated with human operational tolerance in kidney transplantation. 250 samples were analyzed, replicates included: some patients from the TOL and CR groups were sampled twice with an interval between the two different time points of at least 16 months (mean 25.8 months, range 16–31 months). All the samples were analyzed in duplicate or quadruplicate. 1. TOL (n = 21). patients with stable graft function (blood creatinemia<150 mmol/L, proteinuria<1 g/24 h) for at least 1 year (mean 6.4 years,range 1.6–17.2 years) after complete interruption of immunosuppressive therapy. 2. STA (n = 190). Patients with stable kidney graft function under immunosuppressive therapy. 3. CR (n = 31). Patients having a progressive degradation of their renal function (blood creatinemia ≥150 mmol/L, proteinuria ≥1 g/24 h). CR was diagnosed on a graft biopsy according to the updated Banff criteria. CR was defined by histological signs of chronic allograft arteriopathy (arterial intimal fibrosis with mononuclear cell infiltration) and/or transplant glomerulopathy with glomerular double contours. 4. HV (n = 8). Subjects having normal blood formulae and no infectious or other concomitant pathology for at least 6 months before the study.

Dataset Information

Comparison of Glucose Tolerance between Kidney Transplant Recipients and Healthy Controls.

Publications

Comparison of Glucose Tolerance between Kidney Transplant Recipients and Healthy Controls.

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