Changes in expression profiles of antioxidant enzymes in diabetic rat kidneys

Eryilmaz, Nihan
Tutuncuoglu, Egemen
Cingir, Sahika
Güray, Nülüfer Tülün
Background In diabetes mellitus, increased formation of reactive oxygen species due to high level of glucose in both blood plasma and tissues creates oxidative stress and damages the tissues. Antioxidants together with the antioxidant enzymes are very important in order to protect the cells against oxidative damage.


Regulation of Glutathione S-Transferase Mu with type 1 diabetes and its regulation with antioxidants
SADİ, GÖKHAN; Kartal, Deniz Irtem; Güray, Nülüfer Tülün (2013-01-01)
Objective: Increased oxidative stress is now related with the pathogenesis and the chronic complications associated with the disease, diabetes mellitus. While roles of oxidative stress in diabetic complications are widely studied, the molecular mechanisms playing role in the regulations of detoxification enzymes in the presence of antioxidants have not been clearly established because of the complexity of the pathways.
The effects of streptozotocin induced-diabetes on rat testes and the recovery role of vitamin c
Güldağ, Damla; Severcan, Feride; Department of Biology (2012)
Type I Diabetes is a multisystem disease having both biochemical and structural consequences. It causes alterations in carbohydrate, protein, and fat metabolisms due to hyperglycemia. Type I diabetes is also correlated with increased formation of free radicals and decreased levels of antioxidant potential. Lower endogeneous antioxidant amounts and elevated lipid peroxidation levels in diabetes constitute the basis of risk factors for the development of diabetic complications. These complications lead to irr...
Evaluation of an aldo-keto reductase gene signature with prognostic significance in colon cancer via activation of epithelial to mesenchymal transition and the p70S6K pathway
Canli, Secil Demirkol; Seza, Esin Gulce; Sheraj, Ilir; Gomceli, Ismail; Turhan, Nesrin; Carberry, Steven; Prehn, Jochen H. M.; GÜRE, ALİ OSMAY; Banerjee, Sreeparna (Oxford University Press (OUP), 2020-09-01)
AKR1B1 and AKR1B10, members of the aldo-keto reductase family of enzymes that participate in the polyol pathway of aldehyde metabolism, are aberrantly expressed in colon cancer. We previously showed that high expression of AKR1B1 (AKR1B1(HIGH)) was associated with enhanced motility, inflammation and poor clinical outcome in colon cancer patients. Using publicly available datasets and ex vivo gene expression analysis (n = 51, Ankara cohort), we have validated our previous in silico finding that AKR1B1(HIGH) ...
Differential alteration of IL-8 in liver cancer stem cell enrichment in response to PI3K/Akt/mTOR inhibitors and sorafenib
Kahraman, Deniz Cansen; Kahraman, Tamer; Atalay, Rengül (2018-07-01)
Liver cancer stem cells (LCSCs) are derived from damaged and transformed hepatic progenitor cells (HPCs) during precancerous cirrhosis stage. Ras/Raf/MAPK and PI3K/AKT/mTOR signaling pathways are significantly deregulated in liver cancer. The activation of PI3K/AKT/mTOR pathway in LCSC population is one of the reasons for acquired resistance to sorafenib in advanced hepatocellular carcinoma (HCC) patients. Therefore, identifying novel inhibitors targeting this pathway acting on LCSCs is highly essential. We...
Modulation of mRNA expression and activities of xenobiotic metabolizing enzymes, CYP1A1, CYP1A2, CYP2E1, GPx and GSTP1 by the Salicornia freitagii extract in HT-29 human colon cancer cells
ALTAY, AHMET; İrtem Kartal, Deniz; SADİ, GÖKHAN; Güray, Nülüfer Tülün; YAPRAK, AHMET EMRE (2017-01-01)
Phase I-II detoxification and antioxidant enzymes are responsible for the detoxification and elimination of activated carcinogens, acting as important biomarkers for chemoprevention. Among them, cytochrome P450s plays a prominent role in the metabolic activation of xenobiotics. The herb Salicornia freitagii (SF) (Amaranthaceae) is known for its anticancer, antioxidant, antidiabetic and antiinflammatory activities. In this study, we determined the bioactive phenolics in the SF methanol extract and investigat...
Citation Formats
G. SADİ, N. Eryilmaz, E. Tutuncuoglu, S. Cingir, and N. T. Güray, “Changes in expression profiles of antioxidant enzymes in diabetic rat kidneys,” DIABETES-METABOLISM RESEARCH AND REVIEWS, pp. 228–235, 2012, Accessed: 00, 2020. [Online]. Available: