Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population

Fasting proinsulin levels may serve as a marker of β-cell dysfunction and predict type 2 diabetes (T2D) development. Kidneys have been found to be a major site for the degradation of proinsulin. We aimed to evaluate the predictive value of proinsulin for the risk of incident T2D added to a base mode...

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Main Authors: Sara Sokooti, Wendy A. Dam, Tamas Szili-Torok, Jolein Gloerich, Alain J. van Gool, Adrian Post, Martin H. de Borst, Ron T. Gansevoort, Hiddo J. L. Heerspink, Robin P. F. Dullaart, Stephan J. L. Bakker
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Journal of Personalized Medicine
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Online Access:https://www.mdpi.com/2075-4426/12/7/1131
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author Sara Sokooti
Wendy A. Dam
Tamas Szili-Torok
Jolein Gloerich
Alain J. van Gool
Adrian Post
Martin H. de Borst
Ron T. Gansevoort
Hiddo J. L. Heerspink
Robin P. F. Dullaart
Stephan J. L. Bakker
author_facet Sara Sokooti
Wendy A. Dam
Tamas Szili-Torok
Jolein Gloerich
Alain J. van Gool
Adrian Post
Martin H. de Borst
Ron T. Gansevoort
Hiddo J. L. Heerspink
Robin P. F. Dullaart
Stephan J. L. Bakker
author_sort Sara Sokooti
collection DOAJ
description Fasting proinsulin levels may serve as a marker of β-cell dysfunction and predict type 2 diabetes (T2D) development. Kidneys have been found to be a major site for the degradation of proinsulin. We aimed to evaluate the predictive value of proinsulin for the risk of incident T2D added to a base model of clinical predictors and examined potential effect modification by variables related to kidney function. Proinsulin was measured in plasma with U-PLEX platform using ELISA immunoassay. We included 5001 participants without T2D at baseline and during a median follow up of 7.2 years; 271 participants developed T2D. Higher levels of proinsulin were associated with increased risk of T2D independent of glucose, insulin, C-peptide, and other clinical factors (hazard ratio (HR): 1.28; per 1 SD increase 95% confidence interval (CI): 1.08–1.52). Harrell’s C-index for the Framingham offspring risk score was improved with the addition of proinsulin (<i>p</i> = 0.019). Furthermore, we found effect modification by hypertension (<i>p</i> = 0.019), eGFR (<i>p</i> = 0.020) and urinary albumin excretion (<i>p</i> = 0.034), consistent with an association only present in participants with hypertension or kidney dysfunction. Higher fasting proinsulin level is an independent predictor of incident T2D in the general population, particularly in participants with hypertension or kidney dysfunction.
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spelling doaj.art-ab6cbab09f90457182a0f83e2082b6592023-12-03T15:16:52ZengMDPI AGJournal of Personalized Medicine2075-44262022-07-01127113110.3390/jpm12071131Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General PopulationSara Sokooti0Wendy A. Dam1Tamas Szili-Torok2Jolein Gloerich3Alain J. van Gool4Adrian Post5Martin H. de Borst6Ron T. Gansevoort7Hiddo J. L. Heerspink8Robin P. F. Dullaart9Stephan J. L. Bakker10Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The NetherlandsTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The NetherlandsFasting proinsulin levels may serve as a marker of β-cell dysfunction and predict type 2 diabetes (T2D) development. Kidneys have been found to be a major site for the degradation of proinsulin. We aimed to evaluate the predictive value of proinsulin for the risk of incident T2D added to a base model of clinical predictors and examined potential effect modification by variables related to kidney function. Proinsulin was measured in plasma with U-PLEX platform using ELISA immunoassay. We included 5001 participants without T2D at baseline and during a median follow up of 7.2 years; 271 participants developed T2D. Higher levels of proinsulin were associated with increased risk of T2D independent of glucose, insulin, C-peptide, and other clinical factors (hazard ratio (HR): 1.28; per 1 SD increase 95% confidence interval (CI): 1.08–1.52). Harrell’s C-index for the Framingham offspring risk score was improved with the addition of proinsulin (<i>p</i> = 0.019). Furthermore, we found effect modification by hypertension (<i>p</i> = 0.019), eGFR (<i>p</i> = 0.020) and urinary albumin excretion (<i>p</i> = 0.034), consistent with an association only present in participants with hypertension or kidney dysfunction. Higher fasting proinsulin level is an independent predictor of incident T2D in the general population, particularly in participants with hypertension or kidney dysfunction.https://www.mdpi.com/2075-4426/12/7/1131type 2 diabetesproinsulinkidney dysfunctionhypertensionpredictive value
spellingShingle Sara Sokooti
Wendy A. Dam
Tamas Szili-Torok
Jolein Gloerich
Alain J. van Gool
Adrian Post
Martin H. de Borst
Ron T. Gansevoort
Hiddo J. L. Heerspink
Robin P. F. Dullaart
Stephan J. L. Bakker
Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
Journal of Personalized Medicine
type 2 diabetes
proinsulin
kidney dysfunction
hypertension
predictive value
title Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
title_full Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
title_fullStr Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
title_full_unstemmed Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
title_short Fasting Proinsulin Independently Predicts Incident Type 2 Diabetes in the General Population
title_sort fasting proinsulin independently predicts incident type 2 diabetes in the general population
topic type 2 diabetes
proinsulin
kidney dysfunction
hypertension
predictive value
url https://www.mdpi.com/2075-4426/12/7/1131
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