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Öğe Effect of flunixin meglumine on cytokine levels in experimental Endotoxemia in mice(WILEY, 2007) Yazar, E.; Er, A.; Uney, K.; Altunok, V.; Elmas, M.In this study, effect of flunixin meglumine on serum tumour necrosis factor alpha, (TNF alpha) interleukin-1 beta and interleukin-10 levels was investigated in lipopolysaccharide-induced endotoxic mice. Healthy 273 Balb/C mice were used and divided into three equal groups. Group 1 was injected lipopolysaccharide (Escherichia coli 0 111:134, 250 mu g/mouse, intraperitoneally), Group 2 was injected flunixin meglumine (2.5 mg/kg, subcutaneously), and Group 3 was injected lipopolysaccharide + flunixin meglumine. After the treatments, at 0., 1., 2., 3., 6., 12., 24th hours and 3., 5., 7. 14., 21., 28th days blood samples were taken from seven mice in each group. Serum TNF alpha, interleukin-1 beta and interleukin-10 levels were measured using commercially available kits by enzyme-linked immunoassay. Flunixin meglumine did not affect the cytokine levels in healthy animals. While lipopolysaccharide increased serum TNF alpha, interleukin-1 beta and interleukin-10 levels, flunixin meglumine inhibited increases at levels of all cytokines. As result, flunixin meglumine showed depressor effect on cytokine levels in endotoxemia and the effect may be a reason for the first chosen member of nonsteroid anti-inflammatory drug in endotoxemia.Öğe Effect of Phenobarbital on Antioxidant Enzyme Activities and Blood Gas Parameters in Balb/C Mice(ECOLE NATIONALE VETERINAIRE TOULOUSE, 2001) Demir, O.; Yazar, E.; Altunok, V.; Elmas, M.; Özdemir, V.In this study, effect of Phenobarbital was investigated on antioxidant enzyme activities and blood gas parameters in Balb/C mice. Forty male Balb/C mice were used. Ten mice were served as a control group, and thirty mice were administered phenobarbital (80 mg/kg body weight, orally, single administration). Blood, brain and liver samples were taken at 6, 12 and 24 hours after administration. Brain and liver tissues superoxide dismutase and glutathione peroxidase activities were measured by spectrophotometry, and blood gas parameters were measured with blood gas analyzer. As results, phenobarbital caused temporary respiratory acidosis and a decrease in brain tissue superoxide dismutase activity.Öğe Effect of Tilmicosin on Cardiac Muscle and Serum Creatine Kinases Activities and Serum Total Protein Level in Healthy Male Balb/C Mice(ECOLE NATIONALE VETERINAIRE TOULOUSE, 2001) Yazar, E.; Altunok, V.; Elmas, M.; Traş, B.; Baş, A. L.; Özdemir, V.In this study, the effect of tilmicosin on cardiac muscle and serum creatine kinases activities and serum total protein level was investigated. Forty male Balb/C mice were used as materials. Ten mice were used as a control group, and thirty mice were injected with tilmicosin (25 mg/kg body weight, SC, single injection) and monitored for 3 days. The results obtained in the present study show that use of tilmicosin caused temporary increases in cardiac muscle creatine kinase activity and serum total protein level in male Balb/C mice.Öğe Effects of Continuous Supplementations of Ascorbic Acid, Aspirin, Vitamin E and Selenium on Some Haematological Parameters and Serum Superoxide Dismutase Level in Broiler Chickens(Carfax Publishing, 2000) Traş, B.; Inal, F.; Baş, A. L.; Altunok, V.; Elmas, M.; Yazar, E.1. This study was conducted using male broiler chickens to determine the effects of ascorbic acid, aspirin, ascorbic acid+aspirin, vitamin E+selenium and ascorbic acid+aspirin+vitamin E+selenium supplementations on haematological parameters and serum superoxide dismutase concentration. 2. One hundred and twenty day-old male Hubbunt broiler chicks were randomly divided into 6 experimental groups of 20 chicks each and placed in different pens. Groups 2, 3, 4, 5 and 6 were given a diet supplemented with ascorbic acid, aspirin (in water), ascorbic acid+aspirin, vitamin E+selenium and ascorbic acid+aspirin+vitamin E+selenium, respectively for 45 d while group 1 was given a commercial broiler diet. 3. There was no significant effect of ascorbic acid, aspirin, ascorbic acid+aspirin, vitamin E+selenium supplementations on any of the haematological parameters (red blood cell, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin concentration, mean corpuscular haemoglobin) in broilers but ascorbic acid+aspirin+vitamin E+selenium supplementation significantly decreased the white blood cell counts. 4. In addition to this, ascorbic acid, aspirin, ascorbic acid+aspirin and ascorbic acid+aspirin+vitamin E+selenium supplementations had no significant effect on the serum superoxide dismutase level, but vitamin E+selenium supplementation increased the serum superoxide dismutase level.Öğe Effects of Continuous Supplementations of Ascorbic Acid, Aspirin, Vitamin E, and Selenium on Performance, Immune Response, and Some Biochemical Parameters Under Normal Environmental and Management Conditions in Broilers(EUGEN ULMER GMBH CO, 2001) Traş, B.; İnal, F.; Baş, A. L.; Altunok, V.; Elmas, M.; Yazar, E.Male broiler chickens were used to determine the effects of ascorbic acid, aspirin, ascorbic acid + aspirin, vitamin E + selenium, and ascorbic acid + aspirin + vitamin E + selenium supplementation on performance, IgG levels, and some biochemical parameters in blood. Three hundred and ninety six 1-day-old male. Hubbunt broilers were randomly divided into six groups. Each group was placed in different pens and feed and water were provided ad libitum. Performance parameters (body weight, feed intake and feed conversion), IgG levels, vitamins A and E, and some biochemical parameters in blood (Na, K, Cl, total protein and albumin) were measured on days 15, 30, and 45 in all groups. The results revealed at the end of the study showed that aspirin, vitamin C, vitamin E + selenium administrations exhibited no effects on levels of vitamin A, vitamin E, total protein, albumin, Na, Cl and K in blood, while aspirin administration decreased IgG level. Vitamin C administration increased IgG level in serum, aspirin + vitamin C administration increased albumin and K in serum, aspirin + vitamin C + vitamin E + selenium administration increased vitamin E and Na level in serum. Also, there was no significant difference in performance between the control and the experimental groups. It was suggested that vitamin C administration to diets may be useful for broiler breeds due to the observed increased IgG level.Öğe Erythrocyte and spermatozoa glucose-6-phosphate dehydrogenase activity in merino rams: An experimental study(Research and Clinical Center for Infertitlity, 2018) Gürel, H.; Başpınar, Nuri; Akalın, Pınar Peker; Altunok, V.; Kazak, F.Background: Glucose-6-phosphate dehydrogenase (G6PD) is the first enzyme of the pentose phosphate metabolic pathway that supplies reducing agents by maintaining the level of reduced nicotinamide adenine dinucleotide phosphate. Objective: It was aimed to determine the activity of erythrocyte and spermatozoa G6PD in the breeding and non-breeding seasons in Merino rams. And also, to find out the relation of these parameters with sperm quality parameters for better understanding the role of this enzyme in male fertility. Materials and Methods: 1.5-2 yr-old healthy, 14 Merino rams were involved. Ejaculate samples were collected using an artificial vagina, in October (the breeding season) and April (the non-breeding season). Blood samples were collected prior to sperm collection. Sperm volume (ml), motility (%), mass activity (1-5), concentration (×106), viability (%), abnormal acrosome morphology (%) and abnormal sperm morphology (%) was evaluated. The activities of spermatozoa and erythrocyte G6PD were determined and the relation of sperm parameters with G6PD activity was evaluated. Results: Erythrocyte G6PD activity was higher (p?0.001), whereas spermatozoa G6PD activity was lower (p?0.001) in the breeding season (1.928±0.231 U/g hemoglobin, 129.65±28.41 U/g protein, respectively) from that in the non-breeding (0.530±0.066 U/g hemoglobin, 562.36±94.92 U/g protein, respectively). There were also significant differences among sperm quality parameters within the seasons. Positive correlation was determined between spermatozoa G6PD activity (r=0.053, p=0.03 and sperm concentration in the breeding season. Conclusion: Higher spermatozoa G6PD activity in October, where the level of polyunsaturated fatty acids is suggested to be increased, may reflect the increased need of nicotinamide adenine dinucleotide phosphate and thus higher G6PD activity for the oxidative balance. © 2018, Research and Clinical Center for Infertitlity. All rights reserved.Öğe Genetic chracterisation of various cat breeds by using microsatellites in Turkey(BLACKWELL PUBLISHING, 2008) Eroglu, T.; Kurar, E.; Altunok, V.; Ozsensoy, Y.; Nizamlioglu, M.; Yuksek, N.[Abstract not Available]Öğe Investigation of Haematological and Biochemical Side Effects of Tilmicosin in Healthy New Zealand Rabbits(WILEY-BLACKWELL, 2002) Altunok, V.; Yazar, E.; Elmas, M.; Traş, B.; Baş, A. L.; Cöl, R.In this study, the effects of tilmicosin on some haematological and biochemical variables were investigated. Ten male New Zealand rabbits were used as material. The tilmicosin was injected (25 mg kg body weight. subcutaneously as a single injection), and the rabbits were monitored for 4 days. No negative effects of tilmicosin on haematological and biochemical variables were observed, but it did cause a temporary decrease in red and white blood cell counts.Öğe Selected blood serum elements in van (Turkey) cats(VETERINARNI A FARMACEUTICKA UNIVERZITA BRNO, 2007) Altunok, V.; Yazar, E.; Yuksek, N.The Turkish Van cat originates from eastern Turkey. One of the characteristic features of Van cats is the colour of their eyes, which can be both eyes blue, both eyes amber or one eye blue and the other amber. Serum essential trace, macro and industrial element concentrations of Van cats (n = 47) according to sex, age, hair length and eye colour differences were investigated. Serum aluminium, arsenic, boron, barium, cobalt, chromium, copper, gallium, indium, iron, lead, lithium, manganese, nickel, selenium, silver, sulphur, strontium, vanadium and zinc were measured with ICP-OES plasma optical atomic emission spectrometer. In result, serum alummium, barium, copper, manganese and strontium levels in male cats were found higher (p < 0.05) than in female cats. Serum aluminium, copper, manganese, strontium and zinc amounts of blue-blue eyed cats were found higher (p < 0.05) than amber-amber, amber-blue and blue-amber eyed cats, and serum lithium of blue-amber eyed cats was higher (p < 0.05) than blue-blue eyed cats. There were no statistically significant differences (p > 0.05) found in the age and hair length groups. Our results indicate that several of the blood serum elements of Van cats may be related to their eye colours and sex differences.