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- 저자 : Kabay, Sahin (검색결과 4 건)
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Kabay, Sahin,Ozden, Hilmi,Guven, Gul,Burukoglu, Dilek,Ustuner, Mehmet Cengiz,Topal, Fatma,Gunes, Hasan Veysi,Ustuner, Derya,Ozbayer, Cansu The Korean Society of Pharmacology 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.4
Testicular torsion results with the damage of the testis and it is a surgical emergency. Pyrrolidine dithiocarbamate (PDTC) is a low-molecular-weight antioxidant and potent inhibitor of nuclear factor kappa B (NF-${\kappa}B$) activation. In this study, we aimed to investigate the effects of PDTC to testicular torsion-detorsion (T/D) injury. Forty adult male Sprague-Dawley rats were separated into four groups. A sham operation was performed in group I. In group II, torsion is performed 2 hours by 720 degree extravaginally testis. In group III, 4 h reperfusion of the testis was performed after 2 h of testicular torsion. In group IV, after performing the same surgical procedures as in group III, PDTC (100 mg/kg, intravenous's) was administered before 30 min of detorsion. The testes tissue malondialdehyde (MDA), superoxide dismutase (SOD) catalase (CAT) level was evaluated. Histological evaluations were performed after hematoxylin and eosin staining. Testicular tissue MDA levels were the highest in the T/D groups compared with treatment group. Administration of PDTC prevented a further increase in MDA levels. Significant decrease occurred in CAT and SOD levels in treatment group compared with the control group. The rats in the treatment group had normal testicular architecture. The results suggest that PDTC can be a potential protective agent for preventing the biochemical and histological changes related to oxidative stress in testicular injury caused by testis torsion.
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Sahin Kabay,Hilmi Ozden,Gul Guven,Dilek Burukoglu,Mehmet Cengiz Ustuner,Fatma Topal,Hasan Veysi Gunes,Derya Ustuner,Cansu Ozbayer 대한약리학회 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.4
Testicular torsion results with the damage of the testis and it is a surgical emergency. Pyrrolidinedithiocarbamate (PDTC) is a low-molecular-weight antioxidant and potent inhibitor of nuclear factorkappa B (NF-κB) activation. In this study, we aimed to investigate the effects of PDTC to testiculartorsion-detorsion (T/D) injury. Forty adult male Sprague-Dawley rats were separated into four groups. A sham operation was performed in group I. In group II, torsion is performed 2 hours by 720 degreeextravaginally testis. In group III, 4 h reperfusion of the testis was performed after 2 h of testiculartorsion. In group IV, after performing the same surgical procedures as in group III, PDTC (100 mg/kg,intravenous’s) was administered before 30 min of detorsion. The testes tissue malondialdehyde (MDA),superoxide dismutase (SOD) catalase (CAT) level was evaluated. Histological evaluations were performedafter hematoxylin and eosin staining. Testicular tissue MDA levels were the highest in theT/D groups compared with treatment group. Administration of PDTC prevented a further increase inMDA levels. Significant decrease occurred in CAT and SOD levels in treatment group compared withthe control group. The rats in the treatment group had normal testicular architecture. The resultssuggest that PDTC can be a potential protective agent for preventing the biochemical and histologicalchanges related to oxidative stress in testicular injury caused by testis torsion.
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Ozlu, Busra,Kabay, Gozde,Bocek, Ilyas,Yilmaz, Merve,Piskin, Ayse Kevser,Shim, Bong Sup,Mutlu, Mehmet Elsevier 2019 International Journal of Pharmaceutics Vol.570 No.-
<P><B>Abstract</B></P> <P>In this study, polyethylene glycol (PEG) conjugated melanin nanoparticles (MNPs) were prepared (PEG-MNPs). A model chemotherapy drug, doxorubicin (DOX), was loaded into the PEG-MNPs with varied concentrations (0.125, 0.250, 0.500 mg/mL). TEM images showed that, DOX-PEG-MNPs are spherical-shaped and 15 ± 2.2 nm in diameter. FTIR spectroscopy analysis demonstrated that MNPs were successfully modified with PEG. The UV–Vis spectroscopy results showed that the drug loading capacity of MNPs was 0.7 mg/ml of DOX in 2 mg/ml of PEG-MNPs. The time course data showed that, the release behavior of DOX from MNPs was primarily diffusion controlled. In vitro cytotoxicity assays demonstrated that MNP and PEG-MNP did not show any toxic effect on mouse fibroblast cells while DOX-PEG-MNP was able to inhibit the proliferation of human breast cancer cells. The results confirm that the application area of MNPs in controlled and prolonged drug release could be extended to the different types of cancer therapeutics.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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Sevda Yilmaz,Muhammed Rasid Aykota,Utku Ozgen,Onur Birsen,Selda Simsek,Burhan Kabay 대한외과학회 2023 Annals of Surgical Treatment and Research(ASRT) Vol.104 No.6
Purpose: The aim of this study is to examine the effectiveness of the neutrophil-lymphocyte ratio (NLR) and CRP/albumin ratio (CAR) in evaluating disease severity and predicting clinical outcomes in patients diagnosed with acute cholecystitis (AC). Methods: A total of 186 patients with AC were evaluated retrospectively. NLR, CAR, Mannheim Peritonitis Index (MPI), and P-POSSUM (Portsmouth Physiological and Operative Severity Score for the enUmeration of Mortality and Morbidity) scores were compared with AC severity grade. Results: The rates of the grade 1 patients (group 1) and the grade 2–3 patients (group 2) were 57.5% (n = 107) and 42.5% (n = 79) according to the disease severity according to Tokyo Guidelines criteria (TG) 18/TG13, respectively. The morbidity rates determined in groups 1 and 2 were 26.7% (n = 28) and 51.9% (n = 41), respectively. No mortality was found in group 1, whereas the mortality rate in group 2 was 6.3% (n = 5). According to multivariate analysis, CAR (odds ratio [OR], 1.234; P < 0.001) and MPI (OR, 1.175; P = 0.001) were found to be associated with moderate-severe disease while CAR (OR, 1.109; P = 0.035) and P-POSSUM morbidity (OR, 1.063; P = 0.007) variables were found to be associated with the presence of morbidity. Conclusion: We have demonstrated that CAR can be used in predicting severity of AC and that CAR is an alternative simple parameter of P-POSSUM morbidity score in prediction of morbidity in these cases. In addition to other assessment methods, these scores can provide valuable and complementary information in assessment of disease severity and prognosis in AC.
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