Yazar "Sayoglu, Burcu" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Azole derivatives with naphthalene showing potent antifungal effects against planktonic and biofilm forms ofCandidaspp.: an in vitro and in silico study
    (Springer, 2021) Sari, Suat; Kocak, Ebru; Kart, Didem; Ozdemir, Zeynep; Acar, M. Fahir; Sayoglu, Burcu; Karakurt, Arzu
    Candidainfections pose a serious public health threat due to increasing drug resistance. Azoles are first-line antifungal drugs for fungal infections. In this study, we tested an in-house azole collection incorporating naphthalene ring to find hits against planktonic and biofilm forms of resistantCandidaspp. In the collection, potent derivatives were identified against the susceptible strains ofCandidawith minimum inhibitory concentration (MIC) values lower than those of the reference drug, fluconazole. MIC values of 0.125 mu g/ml againstC. albicans, 0.0625 mu g/ml againstC. parapsilosis, and 2 mu g/ml againstC. krusei, an intrinsically azole-resistant non-albicans Candida, were obtained. Some of the derivatives were highly active against fluconazole-resistant clinical isolate ofC. tropicalis. Inhibition ofC. albicansbiofilms was also observed at 4 mu g/ml similar as amphotericin B, the reference drug known for its antibiofilm activity. Through molecular docking studies, affinities and key interactions of the compounds with fungal lanosterol 14 alpha-demethylase (CYP51), the target enzyme of azoles, were predicted. The interactions of imidazole with heme cofactor and of the naphthalene with Tyr118 were highlighted in line with the literature data. As a result, this study proves the importance of naphthalene for the antifungal activity of azoles againstCandidaspp. in both planktonic and biofilm forms.
  • Küçük Resim Yok
    Öğe
    Synthesis of some novel 1-(2-naphthyl)-2-(imidazol-1-yl)ethanone oxime ester derivatives and evaluation of their anticonvulsant activity
    (Elsevier France-Editions Scientifiques Medicales Elsevier, 2012) Karakurt, Arzu; Alagoz, Mehmet A.; Sayoglu, Burcu; Calis, Unsal; Dalkara, Sevim
    Twenty-three new oxime ester derivatives of nafimidone were synthesized with the prospect of potential anticonvulsant activities. MES and ScM tests were employed for their anticonvulsant activities and rotorod test for neurological deficits. Eighteen compounds were found to be protective against MES seizures. Alkyl (1-8) and arylalkyl (9,10) oxime ester derivatives were found to be more active than aryl oxime ester derivatives (11-23). Five compounds (2, 3, 7, 9, 10), which were protective at 0.5 h at the doses of 30 mg/kg and higher in MES test, showed the highest activity. Compound 17 was the most active one in ScM test at all dose levels at 4 h. (C) 2012 Elsevier Masson SAS. All rights reserved.