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ELBAY, AHMET

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2017 - 20207
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Author: Elbay, AHMET × Author: ÖZDEMİR, MEHMET HAKAN ×

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Now showing 1 - 7 of 7
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    Regression of Serous Macular Detachment After Intravitreal Dexamethasone Implant in Patients with Diabetic Macular Edema.
    (2019-10-24) Ozdemir, MH; Ekinci, C; Kirik, F; Koytak, A; ÖZDEMİR, MEHMET HAKAN; ELBAY, AHMET; KIRIK, FURKAN; EKİNCİ, CANSU; KOYTAK, İBRAHİM ARİF
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    Are the effects of hemodialysis on ocular parameters similar during and after a hemodialysis session?
    (2017-09-01) Elbay, AHMET; ALTINISIK, M; DINCYILDIZ, A; KUTLUTÜRK, I; CANAN, J; AKKAN, U; KOYTAK, A; OZDEMIR, HÜSEYİN; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN; KOYTAK, İBRAHİM ARİF
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    Intravitreal Dexamethasone Implant for Treatment of Serous Macular Detachment in Central Retinal Vein Occlusion.
    (2017-07-01) Elbay, AHMET; OZDEMIR, HÜSEYİN; MELIKOV, A; KOYTAK, A; ELBAY, AHMET; KOYTAK, İBRAHİM ARİF; ÖZDEMİR, MEHMET HAKAN
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    Response to commentary -Retinal nerve fiber layer analysis in unaffected first-degree relatives of schizophrenia patients-.
    (2020-04-18T00:00:00Z) Ozdemir, MH; Kurtulmus, A; Elbay, AHMET; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN
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    Comparison of serum thiol-disulphide homeostasis and total antioxidant-oxidant levels between exudative age-related macular degeneration patients and healthy subjects
    (2017-10-01) Elbay, AHMET; Ozer, Omer Faruk; AKKAN, Julide Canan Umurhan; Celik, Ugur; KUTLUTURK, Isil; Koytak, Arif; OZDEMIR, Hakan; ELBAY, AHMET; ÖZER, ÖMER FARUK; KOYTAK, İBRAHİM ARİF; ÖZDEMİR, MEHMET HAKAN
    The purpose of the study was to calculate serum total oxidant status (TOS), total antioxidant status (TAS), and dynamic thiol-disulphide (T-D) homeostasis in patients with age-related macular degeneration (AMD), and compare the results with healthy individuals.
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    A novel tool reflecting the role of oxidative stress in the cataracts: thiol/disulfide homeostasis
    (2017-01-01) Elbay, AHMET; Ozer, Omer Faruk; ALTINISIK, Muhammed; ELBAY, Arif Emre; Sezer, TAHA; Bayraktar, HAVVANUR; OZDEMIR, Hakan; ELBAY, AHMET; ÖZER, ÖMER FARUK; SEZER, TAHA; BAYRAKTAR, HAVVANUR; ÖZDEMİR, MEHMET HAKAN
    We investigated serum and aqueous humor thiol/disulfide (T-D) homeostasis in patients with cataracts versus healthy controls. In total, 56 patients with cataracts and 49 healthy controls were enrolled in this case-control study. Serum total thiol (TT), native thiol (NT), and disulfide (DS) concentrations were determined using a novel automated measurement method. Additionally, DS/TT, DS/NT and NT/TT percentage ratios were compared between the groups. In comparison with the control group, serum NT levels and aqueous humor TT and NT levels were significantly lower (p<.05, p<.05 and p<.001, respectively), whereas serum and aqueous humor DS levels were significantly higher in cataract patients (p<.01 and p<.001). DS/TT and DS/NT ratios were significantly higher and the NT/TT ratio was lower in cataract patients in serum (p<.005) and aqueous humor samples (p<.001). In conclusion, serum T-D homeostasis may be useful as biochemical markers, indicating the role of oxidative stress in the development of cataracts. Further studies are needed to confirm the pathophysiological role of T-D homeostasis in cataractogenesis.
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    Insomnia Might Influence the Thickness of Choroid, Retinal Nerve Fiber and Inner Plexiform Layer.
    (2020-03-19T00:00:00Z) Sahbaz, C; Elbay, AHMET; Ozcelik, M; Ozdemir, H; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN
    Sleep may play a fundamental role in retinal regulation and the degree of retinal variables. However, no clinical study has investigated optical coherence tomography (OCT) parameters in patients with primary insomnia. All participants were evaluated with the insomnia severity index (ISI) and the Pittsburgh sleep quality index (PSQI). The retinal nerve fiber layer (RNFL), ganglion cell layer (GC), inner plexiform layer (IPL), macula and choroidal (CH) thickness were compared between 52 drug-naïve patients with primary insomnia and 45 age-gender-BMI-smoke status matched healthy controls (HC). The patients with primary insomnia differed from the HC regarding RNFL-Global (p = 0.024) and RNFL-Nasal inferior (p = 0.010); IPL-Temporal (p < 0.001), IPL-Nasal (p < 0.001); CH-Global (p < 0.001), CH-Temporal (p = 0.004), CH-Nasal (p < 0.001), and CH-Fovea (p = 0.019). ISI correlated with RNFL-Global and RNFL-Nasal inferior. The regression analysis revealed that ISI was the significant predictor for the thickness of RNFL- Nasal inferior (p = 0.020), RNFL-Global (p = 0.031), and CH-Nasal (p = 0.035) in patients with primary insomnia. Sleep disorders are seen commonly in patients with psychiatric, including ocular diseases. Adjusting the effect of insomnia can help to clarify the consistency in findings of OCT.