Sibel Bayıl Oğuzkan

Sibel Bayıl Oğuzkan

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 December 2017 in Pakistan Journal of Biological Sciences
Verified
Journal Article
Closed access
MÖMehmet ÖZASLAN
Mehmet ÖZASLAN
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
Use of Plant Extracts in Alternative Medicine

1 January 2008 in Archives of Industrial Hygiene and Toxicology
Verified
Journal Article
Closed access
PDF file
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
HCHulya Cicek
Hulya Cicek
ICIclal Cimenci
Iclal Cimenci
MHMuhsin Hazar
Muhsin Hazar
Various effects of exposure to volatile organic compounds (VOC) have recently become an important issue because of their widespread use in industry. The aim of this study was to determine the effect of volatile organic solvents commonly used in textile paint industry on free radical levels and the antioxidant enzyme system in textile workers. The study included twenty exposed workers and twenty controls. Blood samples were taken after an overnight fast of 10 to 12 hours. Malondialdehyde (MDA) and total antioxidant capacity (TAC) were studied in serum while super oxide dismutase (SOD) activity was studied in erythrocytes. Statistical analysis was performed using the ANOVA and Kruskall-Wallis analysis tests. MDA and SOD were significantly higher in textile workers than in controls (p0.05).Elevated MDA levels in textile workers may indicate increased lipid peroxidation as a result of long-term exposure to organic solvents, whereas elevated SOD activity suggests that the antioxidant system was activated to counter lipid peroxidation. The results suggest that textile workers occupationally exposed to volatile organic solvents make a risk group and require more frequent periodic examinations.

23 July 2019 in Natural Product Communications
Verified
Journal Article
Open access
PDF file
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
Pepper, a member of the Capsicum genus of the Solanaceae family, is an annual, cultivated plant that grows in temperate climates. The main analogs of capsinoids, which are the secondary metabolites of peppers, are capsaicin and dihydrocapsaicin. During process, calyxes and peduncles are considered to be waste. Levels of capsinoids in these tissues in not well known. An optimized method was used to extract bioactive materials from the waste products from C. annum L. genotypes. Calyxes and peduncles were collected and dried in the shade. Extractions were in MeOH solutions and the extracts were analyzed using high-performance liquid chromatography (HPLC) to quantify the total amount of capsinoid, capsaicin, and dihydrocapsaicin contents. Capsinoid, and its analogs, were identified in all genotypes at varying concentrations, and their capsaicin and dihydrocapsaicin contents evidenced with liquid chromatography-mass spectrometry (LC-MS). In conclusion, the highest amount of capsinoids was found in chili Samandağ peppers, whereas the lowest amount of capsinoids was found in the red sweet pepper sample. All pepper genotypes, the capsaicin amount was higher comparison to dihydrocapsaicin. Capsanoids and anologues obtained from waste pepper can be used as raw materials in production of value added products.

1 April 2019 in Russian Journal of Genetics
Verified
Journal Article
Closed access
PDF file
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
ABA. S. Bozkurt
A. S. Bozkurt
Recent studies aiming to improve the daily milk production of cattle using both genetic and environmental factors are extremely important. The aim of this study is to determine the possible...

15 December 2021 in International Journal of Plant Based Pharmaceuticals
Verified
Journal Article
Open access
PDF file
ATArzuhan Sihoglu Tepe
Arzuhan Sihoglu Tepe
MÖMehmet ÖZASLAN
Mehmet ÖZASLAN
İKİbrahim Halil Kılıç
İbrahim Halil Kılıç
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
The aim of this study was to present information about the traditional use and phytochemistry of T. polium, to discuss contradictory views about chemotaxonomy and its toxic effect on liver and kidneys, and to make suggestions about controversial areas and gaps in the literature. Literature data showed that T. polium has toxic effect on kidney tissue. Moreover, in some of the studies on the liver and in all clinical reports, T. polium has also been proven to have toxic effect on the liver. The components responsible for toxicity are thought to be neo-clerodane diterpenoids. However, it has been reported that flavonoids and some polyphenols in the plant also show antioxidant and anti-inflammatory effects. It has been concluded that more attention should be paid to the use of this plant. More clinical studies are needed to better understand the effects of T. polium on the liver. The effects of the plant on blood serum parameters and histological changes on the liver tissue should be documented in more detail. It was also concluded that that regular consumption of T. polium should be avoided for long periods of time.

31 July 2023 in Inorganics
Verified
Journal Article
Open access
PDF file
SOSibel Bayıl Oğuzkan
Sibel Bayıl Oğuzkan
Hasan TurkezHasan Turkez
Hasan Turkez
HUHalil Ibrahim Ugras
Halil Ibrahim Ugras
ATArzu Tatar
Arzu Tatar
AMAdil Mardinoglu
Adil Mardinoglu
In this study, the biological properties of novel borenium and borinium compounds in terms of their oxidative, genotoxic, and cytotoxic effects were assessed on cultured human peripheral blood cells, as well as several types of cancer cells. Our results revealed that the borinium compounds yielded the best results in terms of supporting total antioxidant capacity (TAC). In fact, borenium 1, borenium 2, borenium 3, borinium 4, and borinium 5 compounds elevated TAC levels of cultured human blood cells at rates of 42.8%, 101.5%, 69.8%, 33.3%, and 49.2%, respectively. There were no statistically significant differences (p > 0.05) between the negative control and the groups treated with all borinium and borenium concentrations from the micronucleus (MN) and chromosome aberration (CA) assays, demonstrating the non-genotoxic effects. Moreover, borenium 1 (60.7% and 50.7%), borenium 2 (70.4% and 57.2%), borenium 3 (53.1% and 45.2%), borinium 4 (55.1% and 48.1%), and borinium 5 (51.0% and 36.1%) minimized the mitomycin C(MMC)-induced genotoxic damages at different rates as determined using CA and MN assays, respectively. Again, it was found that the borinium compounds exhibited higher cytotoxic activity on cancer cells when compared to borenium compounds. Consequently, in light of our in vitro findings, it was suggested that the novel borinium and borenium compounds could be used safely in pharmacology, cosmetics, and various medical fields due to their antioxidant and non-genotoxic features, as well as their cytotoxicity potential on cancer cells.