Koleksiyon Histoloji ve Embriyo ...
170593

Investigation of the anticancer of photodynamic therapy effects by using the novel Schiff base ligand palladium complexes on human breast cancer cell line

Demirbağ, Burcu | Ballı, Ebru | Orekici Temel, Gülhan | Yılmaz, Mustafa Kemal | Değirmenci, Evren | Kibar, Deniz

Chemotherapy plays a role in many cancer therapies, including breast cancer, but due to its significant side effects, alternate treatment approaches have been investigated. One such alternative is photodynamic therapy (PDT), which employs a combination of oxygen, a photosensitizer (PS), and light of a specific wavelength. Transition metal complexes and SBL have gained interest in PDT. In this study aimed to assess the potential antitumor activity and underlying mechanism of a newly synthesized Schiff base ligand (SBL)-mediated PDT on MCF-7 cells, comparing its efficacy to cisplatin. We synthesized and characterized two novel Pd-conjugated SBL compounds (complex-1 and 2). Following the treatment of MCF-7 cells with these compounds, a light-emitting diode (LED) was utilized to deliver a ligh...

Makale2024Chemical Papers 5 | 0 Erişime Kapalı
170609

The ameliorating effect of silymarin against vancomycin-induced apoptosis and inflammation in rat liver

Güzel Kara, Sevda | Uçkun Şahinoğulları, Zuhal | Canacankatan, Necmiye | Antmen, Ş. Efsun | Kibar, Deniz

Silymarin (SL), a flavonolignan complex isolated from seeds of Silybum marianum (Asteraceae), is known for its hepatoprotective, anti-apoptotic, anti-inflammatory, and antioxidant activities. A glycopeptide antibiotic, Vancomycin (VA) which is used for the treatment of serious infections caused by multi-resistant Gram-positive microorganisms has been clinically used for a long time. The aim of the present study was to evaluate potential therapeutic efficiency of SL against VA-induced apoptosis and inflammation using apoptotic (caspase-3, -8, and, -9) enzyme activities) and inflammatory (Tumor necrosis factor-alpha (TNF-α)) markers, and histopathological examinations in rat liver. A total of 49 male Wistar albino rats was divided into 7 groups including control (saline, intraperitoneally (i...

170604

Effect of axitinib on inflammation in experimental corneal neovascularization model in rats

Canacankatan, Necmiye | Dinç, Erdem | Kibar, Deniz | Antmen, Ş. Efsun | Yılmaz, Banu COŞKUN | Taşdelen, Bahar

Purpose: This study investigated the antiinflammatory efficacy of topical application of a selective tyrosine kinase receptor inhibitor (TKI), Axitinib in experimental corneal neovascularization (CNV) model in rats. Vascular endothelial growth factor receptor 1 (VEGFR1), VEGFR2 and VEGFR3 were evaluated as angiogenic markers, nuclear factor kappa B (NF-κB), tumor necrosis factor α (TNFα) and cyclooxygenase-2 (COX2) were determined as inflammatory markers and also histopathological evaluations were carried out. Materials and Methods: Experimental CNV model was established by silver nitrate cauterization in right eye. 6 groups were included as Control; CNV; CNV+DMSO; CNV+0.04% Axitinib; CNV+0.08% Axitinib and CNV+0.24% Axitinib. The corneas were collected and VEGFR1, VEGFR2, VEGFR3, NF-κB...

Makale2018Çukurova Medical Journal 5 | 0 Erişime Açık
166691

The role of ATP-sensitive potassium channels in the vasodilatory effect of N-acetylcysteine

Söğüt, Fatma | Çömelekoğlu, Ülkü | Vezir, Özden | Sucu, Nehir | Yalın, Ali Erdinç | Yalın, Serap | Yılmaz, Şakir Necat | Akkapulu, Merih | Kibar, Deniz

N-acetyl cysteine’s (NAC) anti-inflammatory, antioxidant and vasodilator effects are well known. However, explaining the mechanism of the effects are not sufficient. In this study, on the vasodilatory effect of NAC, role of ATP-sensitive potassium (KATP) channel was investigated by using electrophysiological and molecular genetics methodologies. In this study, aorta smooth muscle cell lines were used. One con trol and three dose groups were studied. The control group were not exposed any treatment. The dose groups were treated with 2, 5 and 10 mMNACrespectively, using the cellattached patch clamp KATP channel currents were measured for 10 min. Intracellular calcium levels in the same groups has been monitored using confocal laser scanning microscope by taking images at 488 nm wavelength w...

Sunum2016THE FEBS JOURNAL 16 | 0 Erişime Açık
166230

Yemler Bilgisi Yem Teknolojisi ve Balık Besleme

Bilgüven, Murat

Her havuz alanında ya da yetiştirme biriminden elde edilen balık ve dolayısıyla balık yetiştiriciliğinin kârlılığı, büyük ölçüde kullanılan yemin miktarına bağlıdır. Su ürünleri sistemi ne kadar yoğun olursa yemlemenin önemi o kadar fazla olur ve toplam üretim maliyetinde yem maliyetinin payı da o kadar artar. Bilindiği üzere alabalık başta olmak üzere bazı balıkların yetiştiriciliği için akarsu sistemli tesisler kullanılmakta yada sıcaklığın, su bileşiminin ve akıntının dolayısıyla oksijen yoğunluğunun daha iyi olduğu tatlı su ve kıyılarda ise yüzer ağ kafeslerde yetiştiricilik yapılmaktadır. Su ürünleri yetiştiriciliğinin ileri durumda olduğu ülkelerde entansif yetiştiricilik uygulanmakta ve yetiştirme alanlarında birim hacimde maksimum ürün yetiştirilmeye çalışılmaktadır. Bu tür yetişti...

Kitap2002Akademisyen 268 | 7 Erişime Açık
167316

Role of antioxidant defense system and biochemical adaptation on stress tolerance of high mountain and steppe plants

Keleş, Yüksel

Eleven species were collected from Northwest Anatolian mountains (1500–2000 m) and 18 species were collected from the Central Anatolian steppes (850–1000 m) in June 1998 and 1999. In all the species investigated, the water and dry matter percentages and solute contents were measured. The chlorophyll, b-carotene, ascorbate and a-tocopherol contents and catalase (CAT), superoxide dismutase (SOD) andglutathione reductase (GR)enzymeactivities oftheplants werealsodetermined.Thesteppeplantshadlowerwatercontentcomparedwith alpine plants. The chlorophyll contents of the plants investigated did not change with altitude. However, the carotenoid/chlorophyll ratio of alpine plants was found to be significantly higher. The antioxidant/chlorophyll ratio of the trees and shrubs was higher than that of he...

Makale2004Acta Oecologica 35 | 0 Erişime Açık