Publications by authors named "Omur K Bulan"

The oral biguanide metformin is used to treat type 2 diabetic mellitus (T2DM). Anti-cancer effects have been proven by metformin in different hormone-sensitive tumors, including breast, pancreatic, colon, and prostate cancer. Therefore, we investigated whether metformin could defend against small intestine damage in Dunning's prostate cancer.

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The body can host the spread of prostate cancer cells. Metastases from prostate cancer are more frequently seen in the brain, liver, lungs, and lymph nodes. A well-known antidiabetic drug, metformin, is also known to have antitumor effects.

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Background: There are evidences linking diabetes to the pathogenesis and progression of various cancers. Metformin is a well-known antidiabetic drug that reduces the levels of circulating glucose and insulin in patients with both insulin resistance and hyperinsulinemia. Aim of the present study was to evaluate the effect of metformin on the liver of rats bearing prostate cancer, diabetes and prostate cancer + diabetes via histopathological and biochemical methods.

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Article Synopsis
  • - The study examined the toxicity of various pesticides on rat liver and investigated whether lupeol could mitigate this toxicity.
  • - Male Wistar rats were divided into groups receiving either control substances or different pesticides, with some groups also receiving lupeol for comparison over ten days.
  • - Results showed severe liver damage and oxidative stress from pesticides, while lupeol appeared to have a protective effect against this damage.
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In this study, the effect of metformin on boron levels and oxidative brain damage in rats due to diabetes and prostate cancer was investigated for the first time. Myeloperoxidase (MPO) activity and the amount of DNA were investigated as tissue oxidative and toxic damage parameters. In Copenhagen rats, Dunning prostate cancer was induced using high metastatic MAT-Lylu cells and diabetes was induced by single dose of streptozotocin (STZ) injection.

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Plastic pollution, which is one of the most important environmental problems at the present time, has been understood recently, and the effects of this pollution on ecosystem and biota are becoming a growing problem, especially in the aquatic ecosystems. Direct or indirect exposure to those particles leads to adverse effects on marine organisms. In the marine environment, plastic materials interact with other pollutants such as metals, thereby affecting the uptake levels of those pollutants in marine organisms.

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In this study, the effects of combined antioxidants treatment against cadmium toxicity were investigated microscopically, immunohistochemically, and biochemically in small intestine of Sprague Dawley rats. The rats were subdivided into four groups as intact control, cadmium was administrated, and both control and cadmium groups treated with ascorbic acid, alpha-tocopherol, and selenium. Metallothionein expression was localized in the base of intestinal glands in control rats and similar expression was observed with antioxidants treatment.

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