Yazar "Akkurt, Zeynep M." seçeneğine göre listele

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    Öğe
    The effects of oral isotretinoin (13-Cis retinoic acid) on the inner ear: A prospective clinical study
    (Canadian Soc Clinical Investigation, 2014) Akdag, Mehmet; Akkurt, Zeynep M.; Gul, Aylin; Ucmak, Derya; Yilmaz, Beyhan; Sengul, Engin; Topcu, Ismail
    Purpose: The purpose of this study was to investigate the effect of oral isotretinoin, a drug used in the treatment of acne vulgaris, on hearing function determined by serial audiology examinations. Methods: Forty patients with acne vulgaris were included in this study. Nine patients were excluded from the study because of inconsistent follow-up. The hearing of each participant was tested with pure tone audiometry and transient evoked autoacoustic emissions before and two and four weeks after treatment with isotretinoin (0.3-0.6 mg/kg/day) in the remaining 31 patients (62 ears). Results: Th e di ff erences between the mean values of the pre- treatment and post-treatment pure tone hearing thresholds at 1000, 2000, 4000 and 6000 Hz frequencies were statistically signi fi cant (p< 0.05), but there was no signi fi cant di ff erence between the pretreatment and post- treatment values at 250 and 500 Hz frequencies (p> 0.05). The difference between the pre-treatment and post-treatment signal-noise ratio values of the transient evoked autoacoustic emissions was not significantly different (p> 0.05). Conclusion: Our results suggest that the use of isotretinoin may cause bilateral hearing threshold changes. Further animal and human studies are required to investigate and characterize isotretinoin- induced neurophysiological alterations in hearing.
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    Öğe
    Pharmacological Inactivation of Src Family Kinases Inhibits LPS-Induced TNF-? Production in PBMC of Patients with Behcet's Disease
    (Hindawi Ltd, 2016) Irtegun, Sevgi; Pektanc, Gulsum; Akkurt, Zeynep M.; Bozkurt, Mehtap; Turkcu, Fatih M.; Kalkanli-Tas, Sevgi
    Behcet's disease (BD) is a multisystemic chronic inflammatory disease characterized by relapsing oral and genital ulcers, uveitis, and skin lesions. The pathogenesis of BD is still unknown. Aberrant production of some cytokines/chemokines plays an important role in the pathogenesis of various inflammatory diseases. Revealing a key signaling regulatory mechanism involved in proinflammatory cytokines/chemokines production is critical for understanding of the pathogenesis of BD. The aim of this study was to determine the role of Src family kinases (SFKs) in production of some LPS-induced proinflammatory cytokines/chemokines in peripheral blood mononuclear cells (PBMC) of active BD patients. Chemical inhibition of SFKs activity impaired LPS-induced TNF-alpha production in PBMC of active BD patients, suggesting that modulating SFKs activity may be a potential target for BD treatment.