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@ARTICLE{Peters:143753,
author = {A. S. Peters and M. Wortmann and T. H. Fleming and P. P.
Nawroth$^*$ and T. Bruckner and D. Böckler and M. Hakimi},
title = {{E}ffect of metformin treatment in patients with type 2
diabetes with respect to glyoxalase 1 activity in
atherosclerotic lesions.},
journal = {Vasa},
volume = {48},
number = {2},
issn = {1664-2872},
address = {Göttingen [u.a.]},
publisher = {Huber},
reportid = {DKFZ-2019-01322},
pages = {186 - 192},
year = {2019},
abstract = {The enzyme glyoxalase1 (GLO1) is the main opponent in the
degradation of the reactive metabolite methylglyoxal (MG),
which by glycation of macromolecules is involved in
atherogenesis. Reduced GLO1-activity in atherosclerotic
tissue is known to be associated with diabetes. It has been
shown that treatment of patients with type 2 diabetes with
metformin leads to increased GLO1-activity in
peripheral-blood-cells. The aim of this study was to
evaluate whether metformin treatment increases GLO1-activity
in atherosclerotic lesions of patients with type 2
diabetes.Patients with type 2 diabetes and carotid artery
disease were included into the study prospectively. Type of
diabetes-medication was documented upon admission along with
demographic and clinical history. Using shock frozen
endarterectomy-derived carotid artery plaques, GLO1-activity
as well as protein expression was measured by a
spectophotometric assay and western-blotting respectively.33
patients (76 $\%$ male, mean age 71 years) were included
into the study and were divided according to treatment with
metformin or not (15 vs. 18 patients). GLO1-activity was
increased by the factor 1.36 when treated with metformin -
however, not significantly (0.86 vs. 0.63 U/mg, p = 0.056).
Normalisation of GLO1-activity onto GLO1-expression level
lead to a significant increase by more than twofold (8.48
vs. 3.85, p = 0.044) while GLO1-protein levels did not
differ significantly. GLO1-activity correlated positively
with increasing HbA1c, especially under metformin
treatment.Treatment with metformin in patients with type 2
diabetes is associated with enhanced GLO1-activity in
atherosclerotic lesions. Regarding the macro- and
microvascular complications in these patients further
studies are needed to gain more insight into the effect of
metformin on the GLO/MG system.},
keywords = {Metformin (NLM Chemicals) / Lactoylglutathione Lyase (NLM
Chemicals)},
cin = {A170},
ddc = {610},
cid = {I:(DE-He78)A170-20160331},
pnm = {323 - Metabolic Dysfunction as Risk Factor (POF3-323)},
pid = {G:(DE-HGF)POF3-323},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30421661},
doi = {10.1024/0301-1526/a000762},
url = {https://inrepo02.dkfz.de/record/143753},
}