1
|
Kurnikowski A, Salvatori B, Krebs M, Budde K, Eller K, Pascual J, Morettini M, Göbl C, Hecking M, Tura A. Glucometabolism in Kidney Transplant Recipients with and without Posttransplant Diabetes: Focus on Beta-Cell Function. Biomedicines 2024; 12:317. [PMID: 38397919 PMCID: PMC10886874 DOI: 10.3390/biomedicines12020317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/09/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Posttransplant diabetes mellitus (PTDM) is a common complication after kidney transplantation. Pathophysiologically, whether beta-cell dysfunction rather than insulin resistance may be the predominant defect in PTDM has been a matter of debate. The aim of the present analysis was to compare glucometabolism in kidney transplant recipients with and without PTDM. To this aim, we included 191 patients from a randomized controlled trial who underwent oral glucose tolerance tests (OGTTs) 6 months after transplantation. We derived several basic indices of beta-cell function and insulin resistance as well as variables from mathematical modeling for a more robust beta-cell function assessment. Mean ± standard deviation of the insulin sensitivity parameter PREDIM was 3.65 ± 1.68 in PTDM versus 5.46 ± 2.57 in NON-PTDM. Model-based glucose sensitivity (indicator of beta-cell function) was 68.44 ± 57.82 pmol∙min-1∙m-2∙mM-1 in PTDM versus 143.73 ± 112.91 pmol∙min-1∙m-2∙mM-1 in NON-PTDM, respectively. Both basic indices and model-based parameters of beta-cell function were more than 50% lower in patients with PTDM, indicating severe beta-cell impairment. Nonetheless, some defects in insulin sensitivity were also present, although less marked. We conclude that in PTDM, the prominent defect appears to be beta-cell dysfunction. From a pathophysiological point of view, patients at high risk for developing PTDM may benefit from intensive treatment of hyperglycemia over the insulin secretion axis.
Collapse
Affiliation(s)
- Amelie Kurnikowski
- Department of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria
| | | | - Michael Krebs
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria
| | - Klemens Budde
- Medizinische Klinik m. S. Nephrologie, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Kathrin Eller
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Julio Pascual
- Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
- Department of Nephrology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
| | - Micaela Morettini
- Department of Information Engineering, Università Politecnica delle Marche, 60131 Ancona, Italy;
| | - Christian Göbl
- Department of Obstetrics and Gynaecology, Medical University of Graz, 8036 Graz, Austria;
| | - Manfred Hecking
- Department of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria
- Division of Nephrology and Dialysis, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria
- Kuratorium for Dialysis and Kidney Transplantation (KfH) e.V., 63263 Neu-Isenburg, Germany
| | - Andrea Tura
- CNR Institute of Neuroscience, 35127 Padova, Italy; (B.S.); (A.T.)
| |
Collapse
|