Browsing by Author "Ozdemir, B."

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Karyological Analysis on Wheat Tir (Triticum Aestivum Var. Aestivum L. Spp. Leucospermum Körn.) Ecotypes in Lake Van Basin, Turkey
(Association of Agricultural Technology in Southeast Asia, 2022) Najafi, S.; Ulker, M.; Altuner, F.; Oral, E.; Ozdemir, B.; Jamal Salih, S.; Selem, E.
Karyotypic is studied within ecotypes species which are importantly found with different ecotypes, and it may possible showing specific genomic adaptation with their environmental growing conditions. Chromosome karyotype and morphology in wheat Tir by analyzing chromosomes in five ecotypes (Ahlat, Ercis, Muradiye, Patnos and central part of Van) in order to present the best instruction for cytogenetic studies in chromosome analysis was investigatred. Pre-treatment with %1 alpha-bromo naphthalene, fixation in karnoy 1, hydrolysis in NaOH and staining by %2 Aceto-Orcein were proved using root meristem segments followed by studying the microscopic preparations. Karyotype analysis of each ecotype. There was separately performed and showing several indices (TL: Total Length, LA: Long Arm, SA: Short Arm, Sat: Satellite and AR: Arm Ratio). The somatic chromosome numbers of all studied ecotypes are hexaploid with 2n=6x=42 and the averages of chromosomes length ranged from 4.60 ±0.02 µm to 16.05 ±0.02 µm. The longest chromosome was observed in chromosome number 1 from ecotype 3 which belongs to Muradiye and the shortest one was related to the chromosome number 21 from ecotype 4 from Patnos. © 2022 Association of Agricultural Technology in Southeast Asia. All rights reserved.
Nanosilver-Based Strategy To Control Zoonotic Viral Pathogens
(Elsevier, 2021) Budama-Kilinc, Y.; Ozdemir, B.; Zorlu, T.; Gok, B.; Kurtur, O.B.; Ceylan, Z.
In the 20th and 21st centuries, more than 200 zoonotic diseases have identified, which caused mortalities. Especially, the effect of zoonotic infections on economies of the countries is quite high. To prevent economic losses caused by zoonotic diseases, many industrialized countries have made various investments, especially for the development of new antiviral agents. It is well known that silver nanoparticles (Ag NPs) possess antibacterial, antifungal, antiprotozoal, and, especially, antiviral properties. In particular, biological activities of Ag NPs are of great attention to use for the control of zoonotic viral pathogens. In this regard, novel materials produced with nanotechnological methods to control zoonotic viral pathogens have been gaining much more importance. In this chapter, we have mentioned the properties, synthesis methods, biological activities of Ag NPs, and the role of Ag NPs in the control of zoonotic viral pathogens. © 2021 Elsevier Inc. All rights reserved.
Production of Rosmarinic Acid Nanoparticles, and Investigation of Anti-Oxidation Effects on Salmon Fish Meat
(Turkish Chemical Society, 2022) Ceylan, Z.; Budama Kilinc, Y.; Yilmaz, A.; Unal, K.; Ozdemir, B.
In this study, an anti-oxidant nanoformulation to prevent the oxidation of salmon was developed using rosmarinic acid (RA). Minced salmon samples (MSs) were treated with 8.10-3 g (RAT1) and 16.10-3 g (RAT2) RA-loaded nanoparticles for 100 g MS rosmarinic acid, separately. The thiobarbituric acid (TBA) values of control (C), RAT1, and RAT2 samples stored at 4 °C were found as 2.995, 1.350, and 0.994 mg MDA/kg; respectively, after 9 days. While the initial free fatty acid (FFA) value of C samples was 2.011%, RAT1 and RAT2 were found as 2.765% and 2.494%, respectively. The 2,2,diphenylpicrylhydrazyl (DPPH) values of MSs treated with RAT1 and RAT2 were observed to be higher than that of C samples. C samples were evaluated as unfit for human consumption on the 5th day of the storage, it was revealed that but the sensory scores of MSs treated with RAT1 and RAT2 were still acceptable for human consumption. © 2022, Turkish Chemical Society. All rights reserved.
Prolidase, Paraoxonase-1, Arylesterase Activity in Oral Squamous Cell Carcinoma
(Yuzuncu Yil Universitesi Tip Fakultesi, 2021) Belli, S.; Demir, H.; Ozdemir, B.; Demir, C.
In many types of cancer, reactive oxygen and nitrogen products have been detected at high levels. Arylesterase, and paraoxonase1 are esterase enzymes that have strong antioxidant characteristics. The prolidase enzyme is a rate-limiting metalloenzyme which also plays a role in collagen turnover, and is dependent on its NO-activity. In this study, we aimed to investigate the possible relationship between serum paraoxonase1, arilesterase and prolidase enzyme activity in patients with squamous cell carcinoma of the oral cavity and to investigate the etiology and mechanism of oral cavity cancer. The study included 24 patients with oral cavity cancer, and 22 healthy age-and sex-matched individuals. Arylesterase, paraoxonase1 and prolidase activities were measured using spectrophotometry. Paraoxonase1 activity was 11.6±2.32 nmol/l in the patient group and 29.46±6.18 nmol/l in the controls. Arylesterase activity was 32.2±14.57 nmol/l in the patient group and 80.71±7.23 nmol/l in the controls. Prolidase activity was 39.51±3.02 nmol/l in the patient group and 19.53±1.13 nmol/l in the controls. The mean paraoxonase1 and arylesterase levels in the patient group were statistically lower than the control group and the mean prolidase levels were high (p = 0.0001). In our study, arylesterase and paraoxonase1 enzyme activity was low in patients with oral cav ity cancer. The prolidase activity was higher in the same group. As a result, paraoxonase1, arylesterase and prolidase enzyme activities play an important role in the etiopathogenesis of oral cavity cancers. In addition, more research should be done on bot h clinical and molecular levels of oral cavity cancer. © 2021, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.