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ŞENER, AZİZE

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ŞENER

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AZİZE

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2010 - 20162
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Author: ÖZSAVCI, DERYA × Subject: APOPTOSIS ×

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    Synthesis of Diflunisal Thiazolidinones as Anticancer Agents
    (BENTHAM SCIENCE PUBL LTD, 2016) ŞENER, AZİZE; Senkardes, Sevil; Ozakpinar, Ozlem B.; Ozsavci, Derya; Sener, Azize; Cevik, Ozge; Kucukguzel, S. Guniz
    A series of diflunisal 4-thiazolidinones were synthesized. Some selected compounds were determined at one dose towards the full panel of 60 human cancer cell lines by National Cancer Institute. 2',4'-Difluoro-4-hydroxy-N-[4-oxo-2-(thiophen-2-yl)-1,3-thiazolidin-3-yl]biphenyl-3-carboxamide (4a) demonstrated the most marked effect on K-562 cancer cell line with 58.59 % growth inhibition at 10 mu M. Compound 4a was evaluated in vitro using the MTT colorimetric method against human leukemia cell line K-562 and mouse embryonic fibroblasts cell line NIH-3T3 at different doses for cell viability and growth inhibition. Compound 4a exhibited anticancer activity with IC50 value of 5.2 mu M against K-562 cells and did not display cytotoxicity towards NIH-3T3 cells compared with diflunisal. In addition, this compound could be an interesting prototype as an antiproliferative agent.
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    New in vitro effects of clopidogrel on platelets in hyperlipidemic and healthy subjects
    (GALENOS YAYINCILIK, 2010-06-01) ŞENER, AZİZE; Ozsavci, Derya; Sener, Azize; Oba, Rabia; Demirel, Guelderen Yarukkaya; Uras, Fikriye; Yardimci, Turay Kevser
    Objective: We aimed to detect novel in vitro effects of clopidogrel on platelets by assessment of the following parameters: malondialdehyde, glutathione, nitrite, aggregation response, and expressions of P-selectin, fibrinogen, apolipoprotein A1, apolipoprotein B, and phosphatidylserine. Materials and Methods: Platelets were obtained from healthy (n: 9) and hyperlipidemic (n: 9) volunteers. Expressions of P-selectin, fibrinogen, apolipoproteins A1/B and phosphatidylserine with and without clopidogrel were assayed by flow cytometry. Malondialdehyde, glutathione, aggregation and nitrite levels were also assayed. Results: Without clopidogrel, the baseline values of platelet aggregation, malondialdehyde, and expressions of P-selectin, fibrinogen and phosphatidylserine were significantly higher, whereas nitrite and expression of apolipoproteins A1/B were significantly lower in hyperlipidemics than in the healthy group. In both groups, clopidogrel significantly reduced aggregation and expression of fibrinogen, but it elevated nitrite levels. Clopidogrel significantly decreased P-selectin and phosphatidylserine expression and malondialdehyde but increased expressions of apolipoproteins A1/B only in hyperlipidemics. Conclusion: It seems that clopidogrel has some new in vitro antiplatelet effects. The present study is a basic in vitro study to suggest new insights into the effects of clopidogrel on platelet functions. (Turk J Hematol 2010; 27: 99-108)