Browsing by Author "Yur, F."

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Age and Serum Mineral Profile in Turkey
(indian veterinary Journal, 2007) Dede, S.; Yur, F.; Yoruk, I.
The objective of this research was to determine the effect of age on the concentration of minerals in the turkey.
Antioxidant Vitamin and Mineral Levels in Sheep With Fluorosis
(Humana Press inc, 2008) Yasar, S.; Yur, F.
The present study was carried out to determine the levels and changes of vitamins A, C, and E, fluoride, and calcium in 30 Morkaraman sheep with fluorosis, comparing them to unexposed healthy controls. The sheep exposed to fluoride showed significant differences in urinary fluoride and the blood levels of beta-carotene and vitamins A and C (p<0.001) as proof of the impact that fluorosis have in the overall health of the animals.
The Effects of Protein Deficiency on Na, K-Atpase Activity in Rat Kidney
(2008) Donmez, N.; Belge, F.; Yur, F.; Tatar, M.
The aim of the study was to evaluate the effects of protein deficiency on renal Na, K-ATPase activity and cholesterol levels in rats. Wistar rats were used in the study and were fed with a diet variously containing 3%, 12.5% and 25% protein. The results showed that body weight gains in protein deficient groups were lower than control group. Renal Na, K-ATPase activity was significantly higher in control than the protein deficient groups especially in 30 and 45th days (P < 0.05). Renal cholesterol concentrations were significantly lower in both protein deficient groups than in control rats. The results of this study clearly show that protein deficiency in male rats affects renal Na, K-ATPase activity.
The Importance of Serum Creatine Kinase (Ck), Aspartate Aminotransferase (Ast) and Lactate Dehydrogenase (Ldh) Activities in the Diagnosis and Prognosis of Subclinic and Clinic White Muscle Disease in Lambs
(Scientific and Technical Research Council of Turkey, 1996) Sekin, S.; Voyvoda, H.; Bildik, A.; Yur, F.
In this study ; the importance of serum CK, AST and LDH activities in the diagnosis and prognosis of subclinic and clinic White Muscle Disease in lambs was searched in consideration of the effect of vitamin E+selenium application on these enzyme values. Akkaraman 26 lambs (8 healthy, 8 subclinically and 10 clinically affected with White Muscle Disease) were used in investigation. Serum CK, AST and LDH activities were measured according to kinetic procedure with commercial test kits. Serum CK, AST and LDH activities were significantly higher in lambs with subclinical and clinical White Muscle Disease compared to healthy lambs (p<0.01). A prophylactic or therapeutic intramuscular dosage of 1mg selenium+300 IU vitamin E for subclinically and clinically affected lambs had the effect that within one week the increased enzyme activitiy had dropped again into the normal values (p<0.05, p<0.01). It has been concluded that, the joint evaluating of serum CK, AST and LDH activities will be useful in the diagnosis, prognosis and taking prophylactic measures of subclinic and clinic White Muscle Disease in lambs.
Nitric Oxide Oxidation Products and the Activities of Catalase and Carbonic Anhydrase in Sheep With Fluorosis
(int Soc Fluoride Research, 2012) Yilmaz, S.; Yur, F.
This study was conducted to determine the levels of nitrite and nitrate and the activities of catalase and carbonic anhydrase in the blood of sheep with and without endemic fluorosis. Blood samples from 20 fluorotic and 10 healthy Morkaraman sheep 3-4 years old in the Van area of Turkey were collected and analyzed. In the fluorotic sheep the average catalase activity level in the blood was significantly lower at 1.72 vs. 11.23 mg/Hb in the healthy sheep. On the other hand, carbonic anhydrase enzyme activities were significantly higher in the fluorotic sheep at 2.13 vs. 0.13 mg/Hb in the healthy sheep. Nitrite and nitrate levels from oxidation of nitric oxide were 2.31 and 3.32 vs. 0.51 and 0.84 ppm in the fluorotic and healthy sheep, respectively. These results have important health implications for the widespread occurrence of fluorosis among people and animals living in these areas of Turkey.
Serum Cytokine and Vitamin Levels in Experimental Diabetic Rats
(2011) Yazar, M.; Deger, Y.; Yur, F.
It is considered several cytokines are effective in pathogenesis and theraphy of diabetes mellitus. The aim of this study was to investigate serum concentrations of interleukin-1 β, interleukin-2, interleukin-6 and interleukin-10 cytokines thought to have relationship with diabetes mellitus and serum retinol, α-tocopherol and vitamin D3 levels notified they have constructive effects on diabetes in streptozotocyne induced diabetic rats. Male Wistar-Albino rats between 7-8 weeks old and weighing 180-210 g were used. Streptozotocin induced and blood glucose levels were found between 230-390 mg dL1 diabetic 25 rats formed the study group and 15 healthy rats constituted the control group. Serum cytokine levels in both groups were evaluated by solid phase sandwich ELISA method and serum vitamin levels were established by HPLC. Serum interleukin-1 β, interleukin-6 and interleukin-10 levels were not sufficient to constitute a statistical importance between groups. However, in diabetic group decreased interleukin-2 levels (p<0.05) were established. Besides, decreased retinol and vitamin D3 levels (p<0.05) were detected in diabetic group but reduction in levels of α-tocopherol did not reach statistical significance. In conclusion, decreased serum interleukin-2 levels established in diseased group may indicate this cytokine has a part in the pathogenesis of diabetes mellitus and reduced vitamin levels may exhibit they used for disposal of free oxygen radicals. Besides, increased vitamin D3 consumption may be due to its disposal in T cell regulation. © Medwell Journals, 2011.
Serum Total and Lipid-Bound Sialic Acid Concentrations in Sheep With Natural Babesiosis
(veterinarni A Farmaceuticka Univerzita Brno, 2007) Deger, Y.; Mert, H.; Dede, S.; Yur, F.; Mert, N.
The aim of this study was to determine the serum concentrations of total and lipid-bound sialic acid in sheep naturally infected with Babesia ovis before and after treatment. Thirty diseased sheep and ten control animals were used. Babesia infection was confirmed with Giemsa's staining of blood smears. Compared to the control animals (1.351 +/- 0.100 mmol center dot l(-1); 0.385 +/- 0.001 mmol center dot l(-1)), a marked increase of serum total and lipid bound sialic acid concentrations (1.929 +/- 0.101 mmol center dot l(-1); 0.479 +/- 0.004 mmol center dot l(-1), respectively) was obtained in infected sheep (p < 0.05). One week after treatment, serum total and lipid bound sialic acid concentrations significantly decreased (1.554 +/- 0.005 mmol center dot l(-1); 0.411 +/- 0.02 mmol center dot l(-1), respectively) (P < 0.05). Despite this decline, total and lipid bound sialic acid concentrations of treated animals were still significantly increased in sera compared to the control animals (p < 0.05). When the infected animals were treated with an antiparasitic drug (diminazene aceturate), the serum total and lipid bound sialic acid levels had a tendency to decrease to the normal ranges. It can be concluded that Babesia ovis infection induced marked and persistent elevations of serum total and lipid-bound sialic acid concentrations, suggesting that these indicators would indirectly promote the invasion and presence of the parasite in the host.