Levels of heavy metals and their binding protein metallothionein in type 2 diabetics with kidney disease.
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| Abstract |
Hyperglycemia, a major metabolic disturbance present in diabetes, promotes oxidative stress. Activation of antioxidant defense is an important mechanism to prevent cell damage. Levels of heavy metals and their binding proteins can contribute to oxidative stress. Antiradical capacity and levels of metallothionein (MT), metals (zinc and copper), and selected antioxidants (bilirubin, cysteine, and glutathione) were determined in 70 type 2 diabetes mellitus (T2DM) subjects and 80 healthy subjects of Caucasian origin. Single nucleotide polymorphism (rs28366003) in MT gene was detected. Antiradical capacity, conjugated bilirubin, and copper were significantly increased in diabetics, whereas MT and glutathione were decreased. Genotype AA of rs28366003 was associated with higher zinc levels in the diabetic group. The studied parameters were not influenced by renal function. This is the first study comprehensively investigating differences in MT and metals relevant to oxidative stress in T2DM. Ascertained differences indicate increased oxidative stress in T2DM accompanied by abnormalities in non-enzymatic antioxidant defense systems.
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| Authors | Martina Raudenska, Veronika Dvorakova, Lukas Pacal, Katarina Chalasova, Monika Kratochvilova, Jaromir Gumulec, Branislav Ruttkay-Nedecky, Ondrej Zitka, Katerina Kankova, Vojtech Adam, Michal Masarik |
| Journal | Journal of biochemical and molecular toxicology (J Biochem Mol Toxicol) Vol. 31 Issue 6 (Jun 2017) ISSN: 1099-0461 [Electronic] United States |
| PMID | 28059470 (Publication Type: Journal Article, Multicenter Study) |
| Copyright | © 2017 Wiley Periodicals, Inc. |
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