Browsing by Author "Turna B."

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    EVect of lisinopril on renal tissue damage in unilateral ureteral obstruction in rats
    (2012) Karabuga Ä.; Akbay K.; Turna B.; Vatansever H.S.; Altay B.; Güzel E.; Uluer E.T.; Ustun G.; Ekren F.; Nazli O.; Muftuoglu S.; Apaydin E.
    In this study, it was aimed to investigate apoptosis in renal injury and the eVect of lisinopril in rat model, which constitute unilateral ureteral obstruction. The retroperitoneal ureter was ligated with a 4.0 silk for the experimental model of ureteral obstruction in Wistar albino rats. Untreated group (n = 20) received no treatment. For the lisinopril-treated group (n = 20), 20 mg/kg/day of drug was given orally. Ultrastructural diVerences were analyzed using electron microscopic technique; apoptotic distribution was analyzed using the TUNEL method. After electron microscopic evaluation, on the 4th and 14th day in the untreated group, edema in the glomeruli, loss of microvillus and apoptotic cells in proximal tubule cells and sclerosis in the glomeruli were detected. On the 4th day in the lisinopril-treated group, the kidney was ultrastructurally normal and a less number of apoptotic cells were only observed on the 14th day. On light microscopic examination on the 4th and 14th day in the untreated group, while the glomeruli were normal in structure, the boundary of the proximal tubule was disrupted and some picnotic cells in both the proximal and collecting tubules were observed. In both 4th and 14th day of the lisinopril-treated group, kidney showed normal structure, although in some places picnotic cells in the collecting tubules were observed. In conclusion, lisinopril was eVective and it may prevent early renal damage in the direct obstruction model. © Springer-Verlag 2011.
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    Influence of tamsulosin on the anterior segment parameters and central corneal thickness; [Tamsulosinin ön segment parametreleri ve santral kornea kali{dotless}nli{dotless}ǧi{dotless}na etkisi]
    (Turkiye Klinikleri, 2014) Palamar M.; Emre S.; Turna B.; Yaǧci A.
    Objective: To investigate the effects of tamsulosin (α-1 adrenergic receptor antagonist) on the main numerical parameters of anterior segment using Pentacam rotating Scheimmpflug camera, and on biomechanical parameters using Reichert Ocular Response Analyser (ORA) in patients with benign prostate hyperplasia. Material and Methods: In addition to full eye examination [best corrected visual acuity, keratometry, intraocular pressure (IOP) measured with Goldmann applanation tonometry], Pentacam [central corneal thickness (CCT), anterior chamber depth, anterior chamber volume, anterior chamber angle, pupil diameter] and ORA (corneal hysteresis, corneal resistance factor, corneal compensated IOP, Goldmann correlated IOP) measurements of 30 eyes of 15 male patients were performed before and one month after tamsulosin therapy. Paired t-test and non-parametric Wilcoxon test were used for comparisons. Results: Mean age in the study group was 61.50±6.10 (range 47-69) years. After tamsulosin treatment, CCT increased and this increment was statistically significant (p=0.002). None of the other parameters that were evaluated showed statistically significant difference after tamsulosin use. Conclusion: Tamsulosin leads to significant increment in CCT. The effects of tamsulosin on CCT should be taken into consideration for proper clinical interpretation in patients using tamsulosin. © 2014 by Türkiye Klinikleri.