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@ARTICLE{Schttker:179339,
author = {B. Schöttker$^*$ and E. L. Larsen and A. Weimann and T.
Henriksen and H. Brenner$^*$ and H. E. Poulsen},
title = {{A}ssociations of urinary metabolites of oxidized {DNA} and
{RNA} with the incidence of diabetes mellitus using
{UPLC}-{MS}/{MS} and {ELISA} methods.},
journal = {Free radical biology and medicine},
volume = {183},
issn = {0891-5849},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {DKFZ-2022-00605},
pages = {51 - 59},
year = {2022},
note = {#EA:C070#},
abstract = {To evaluate the association of urinary oxidized
guanine/guanosine (OxGuo) levels with incident type 2
diabetes (T2D) among older adults.A nested case-control
design was applied with 440 cases of incident T2D and 440
controls, randomly sampled from all 65-75 year-old study
participants of the ESTHER study, which is a
population-based German cohort study with 14 years of
follow-up. Analyses of 8-hydroxy-2'-deoxyguanosine
(8-oxo-dGuo; DNA oxidation product) and 8-hydroxyguanosine
(8-oxo-Guo; RNA oxidation product) were measured by
ultra-performance liquid chromatography tandem-mass
spectrometry (UPLC-MS/MS). The sum of the two OxGuo molecule
concentrations was calculated and called OxGuo-UPLC-MS/MS.
The corresponding OxGuo-ELISA levels were measured by
Cayman's DNA/RNA oxidative damage ELISA, which detects a mix
of 8-oxo-dGuo, 8-oxo-Guo and one other OxGuo molecule.
Logistic regression was applied and models were adjusted for
age, sex, BMI, HbA1c, and C-reactive protein
levels.8-oxo-dGuo and 8-oxo-Guo were highly correlated with
each other (r = 0.642) and weakly correlated with
OxGuo-ELISA (r = 0.22 and r = 0.14, respectively).
OxGuo-ELISA levels were statistically significant associated
with T2D incidence (odds ratio (OR) and $95\%$ confidence
interval $[95\%CI]$ for comparison of top and bottom
quartile: 1.77 [1.14; 2.76]). In contrast, the ORs did not
increase stepwise from quartile 2 to 4 for neither
8-oxo-Guo, 8-oxo-dGuo levels nor OxGuo-UPLC-MS/MS and
comparisons of top and bottom quartile were not
statistically significant. In a post-hoc analysis comparing
bottom quartile 1 with a combined group of quartile 2-4, the
association of OxGuo-UPLC-MS/MS with T2D incidence reached
statistical significance (OR $[95\%CI]:$ 0.66 [0.46; 0.96])
and was very similar with the one obtained for OxGuo-ELISA
(OR $[95\%CI]:$ 0.66 [0.45; 0.95]).Although only the
measurements of the DNA/RNA oxidative damage ELISA kit of
Cayman were statistically significantly associated with T2D
incidence in the main analysis, confidence intervals
overlapped and the post-hoc analysis showed that results for
OxGuo-UPLC-MS/MS were quite comparable.},
keywords = {8-Hydroxy-2′-deoxyguanosine (Other) / Cohort study
(Other) / Diabetes mellitus (Other) / Free radicals (Other)
/ Oxidative stress (Other) / Type 2 (Other)},
cin = {C070},
ddc = {610},
cid = {I:(DE-He78)C070-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35307553},
doi = {10.1016/j.freeradbiomed.2022.03.007},
url = {https://inrepo02.dkfz.de/record/179339},
}