Thiols as markers of redox status in type 1 diabetes mellitus

Introduction: Type 1 diabetes mellitus (T1DM) is associated with inflammation and the production of reactive oxygen species (ROS). Systemically, free thiols (R-SH) can be oxidized by ROS and circulating R-SH concentrations may directly reflect the systemic redox status. In this study the association...

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Published in:Therapeutic advances in endocrinology and metabolism 2020, Vol.11, p.2042018820903641-2042018820903641
Main Authors: van Dijk, Peter R., Pasch, Andreas, van Ockenburg-Brunet, Sonja L., Waanders, Femke, Eman Abdulle, A., Muis, Marian J., Hillebrands, J. L., Bilo, Henk J. G., van Goor, Harry
Format: Article
Language:English
Subjects:
Complications
Confidence intervals
Correlation coefficient
Correlation coefficients
Diabetes
Diabetes mellitus
Diabetes mellitus (insulin dependent)
Hemoglobin
Microvasculature
Original Research
Oxidative stress
Parameters
Quartiles
Reactive oxygen species
Regression analysis
Statistical analysis
Thiols
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Summary:Introduction: Type 1 diabetes mellitus (T1DM) is associated with inflammation and the production of reactive oxygen species (ROS). Systemically, free thiols (R-SH) can be oxidized by ROS and circulating R-SH concentrations may directly reflect the systemic redox status. In this study the association between R-SH and clinical parameters of T1DM, including glycated haemoglobin A1c (HbA1c), was investigated. This is of particular interest since thiols are amendable to therapeutic intervention. Methods: As part of a prospective cohort study, data from 216 patients with a mean age of 45 (12) years, 57% male, diabetes duration 22 (16, 30) years and HbA1c of 60 (11) mmol/mol were examined. Baseline data were collected in 2002 and follow-up data in 2018. Cox proportional hazards regression analysis, with age, sex, HbA1c and R-SH, was used to assess prognostic factors for the development of complications. Results: At baseline, the plasma concentration of R-SH was 281.8 ± 34.0 μM. In addition to a lower concentration of NT-proBNP in the highest R-SH quartile (305–379 µM) there were no differences in baseline characteristics between the quartiles of R-SH. The Pearson correlation coefficient for R-SH and NT-proBNP was −0.290 (p 
ISSN:2042-0188
2042-0196
DOI:10.1177/2042018820903641