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Articles by Abuzer Tas
Total Records ( 5 ) for Abuzer Tas
  Cemal Budag , Abuzer Tas and Evrim Tas
  In the present study, effects of use of Vetch grain feed (V), which is one of leguminous grain feeds, at different levels on certain blood parameters in lamb rations were investigated. Twenty four of weaned female lambs, which are approximately 16 weeks old, were used for the test. Three feeding groups were established for the test. According to it, feed amount, which accounts for 2% of animal weight, consists of completely dry trefoil for the Control group (C). The second group was fed with vetch in an amount of 0.75% of animal weight and Dry Trefoil (DT) in an amount of 1.25% of animal weight (VI) and the third group was fed with vetch in an amount of 1.5% of animal weight and dry trefoil in an amount of 0.5% of animal weight (VII). Two blood samples were collected from the lambs, one was collected at the beginning of the study and the other was collected on the 25th day of the study. According to the analysis conducted, it was observed that, blood Triglyceride (TG), Very Low Density Lipoprotein (VLDL) and Lactate Dehydrogenasis (LDH) levels in the bloods of the lambs were not affected by F-type diet. However, blood aspartate aminotransferase (AST) level increased in all groups including control, while blood Albumin (ALB) level increased in VII depending on Vetch (V) diet (p<0.05). It was also seen that, blood alanine Aminotransferase (ALT) and Blood Urea Nitrogen (BUN) levels decreased as a result of F diet (p<0.05). The fact that use of F, which is a good protein and energy feed, increased ALB level and decreased BUN suggested that, a positive protein metabolism was formed in the animals. High ratio use of F containing anti-nutrient materials like all leguminous grain feeds was expected to increase ALT and LDH levels; however, it caused decrease in these parameters. This evidenced positive effect of F on liver.
  Cemal Budag , Abuzer Tas and A. Semra Vakit
  In the present study, effects of use of Chickling Vetch (CV) grain feed, which is one of leguminous grain feeds, at different levels on certain blood parameters in lamb rations were investigated. Twenty four of weaned female lambs, which are approximately 16 weeks old, were used for the test. Three feeding groups were established for the test. According to it, feed amount, which accounts for 2% of Body Weight (BW), consists of completely dry trefoil for the Control group (C). The second group (CVI) was fed with chickling vetch in an amount of 0.75% of BW and Dry Trefoil (DT) in an amount of 1.25% of BW and the third group (CVII) was fed with chickling vetch in an amount of 1.5% of BW and dry trefoil in an amount of 0.5% of BW. Two blood samples were collected from the lambs, one was collected at the beginning of the study and the other was collected on the 25th day of the study. According to the analysis conducted, it was observed that blood Aspartate Aminotransferase (AST) level decreased in all groups including control groups, while Blood Urea Nitrogen (BUN) levels increased of in CVI and CVII groups depending on CV diet (p<0.05). However, blood Triglyceride (TG), Very Low Density Lipoprotein (VLDL), blood Albumin (ALB), blood Globulin (GLO), blood alanine Aminotransferase (ALT) and Lactate Dehydrogenasis (LDH) levels in the bloods of the lambs were not affected by CV-type diet. The fact that use of CV, which is a good protein and energy feed, increased BUN suggested that a pore protein metabolism was formed in the animals. High ratio use of CV containing anti-nutrient materials like all leguminous grain feeds, was expected to increase ALT, AST and LDH levels; however, it were not caused any changes in ALT and LDH parameters also it decreased AST levels. This evidenced positive effect of CV on liver.
  Cemal Budag , Evrim Tas and Abuzer Tas
  In the present study, effects of use of vetch grain feed (V), which is one of leguminous grain feeds, at different levels on certain blood parameters in lamb rations were investigated. Twenty four of weaned female lambs, which are approximately, 16 week old, were used for the test. Three feeding groups were established for the test. According to it, feed amount, which accounts for 2% of Body Weight (BW), consists of completely dry trefoil for the Control group (C). The second group (VI) was fed with vetch in an amount of 0.75% of BW and Dry Trefoil (DT) in an amount of 1.25% of BW and the third group (VII) was fed with vetch in an amount of 1.5% of BW and dry trefoil in an amount of 0.5% of BW. Two blood samples were collected from the lambs, one was collected at the beginning of the study and the other was collected on the 25th day of the study. According to the analyses conducted, it was observed that blood Triglyceride (TG), Very Low Density Lipoprotein (VLDL) and Lactate Dehydrogenasis (LDH) levels in the bloods of the lambs were not affected by V-type diet. However, blood Aspartate Aminotransferase (AST) level increased in all groups including control, while blood Albumin (ALB) level increased in VII depending on Vetch (V) diet (p<0.05). It was also, seen that blood alanine Aminotransferase (ALT) and Blood Urea Nitrogen (BUN) levels decreased as a result of V diet (p<0.05). The fact that use of V, which is a good protein and energy feed, increased ALB level and decreased BUN suggested that a positive protein metabolism was formed in the animals. High-ratio use of V containing anti-nutrient materials like all leguminous grain feeds, was expected to increase ALT and LDH levels; however, it caused decrease in these parameters. This evidenced positive effect of V on liver.
  Ismail Kati , Murat Tekin , Abuzer Tas , Cetin Ragbetli and Serdar Ugras
  The aim of this study was to histopathologically assess the toxic effect of desflurane on the liver and the kidney. The rats (n = 150) were grouped into five main and three subgroups according to the exposure time to the anesthetic agent. The first group was planned as 1 MAC Desflurane+N2O+O2, the second group as 1 MAC Desflurane+O2, the third group as 2 MAC Desflurane+N2O+O2, the fourth group as 2 MAC Desflurane+O2 and the 5th group as the control group. Each group was given the anesthetic agent for 1, 3 or 6 h. The rats that were exposed to the anesthetic agent with an adequate dose and for an adequate period of time were sacrificed properly. Livers and kidneys were resected and examined by light microscopes following the routine tissue follow-up procedures. Significant histopathological changes were observed in all groups compared to the control group. However, the pathological findings of the group 2 MAC Desflurane+N2O+O2 at the 6th h with the light microscope was significantly more than those of other groups at all times. It was concluded that although, desflurane caused cellular changes in liver and kidney tissue, it did not cause any clinical changes. Nevertheless, further studies are required to support this opinion.
  Baris Atalay Uslu , Fatma Ilhan , Fetih Gulyuz , Abdullah Karasu , Abuzer Tas , Sait Sendag and Axel Wehrend
  Sildenafil citrate is an active ingredient used successfully in the treatment of erection disorders caused by a variety of factors. The purpose of this study is to research the effects of Sildenafil citrate and vitamins A, C and E on testicular degeneration in rats with alloxan diabetes. The rats were divided into II groups; healthy control and diabetic groups. The diabetic rats were divided into X groups with ten animals in each group. Group I consisted of control diabetic rats that were given only distilled water, Group II was the diabetic group treated with glibenclamide; Group III was the diabetic group treated with insulin, Group IV was the diabetic group treated with Sildenafil citrate, Group V was the diabetic group treated with Vitamin A, Group VI was the diabetic group treated with vitamin C, Group VII was the diabetic group treated with vitamin E, Group VIII was the diabetic group treated with Sildenafil citrate and vitamin A, Group IX was the diabetic group treated with Sildenafil citrate and vitamin C and Group X was the diabetic group treated with Sildenafil citrate and vitamin E. Testis tissue samples were collected on the 3, 7 and 15th days of treatment in control and diabetic groups. In the histopathological examination of the testicles of diabetic rats, the seminiferous tubules and interstitium of testes in the control groups were normal and the complete spermatogenic cells in the seminiferous tubules were healthy and uniformly arranged. Severe degeneration and tubular atrophy was observed in the seminiferous tubules on the 3, 7 and 15th days in the group with induced alloxan diabetes given only distilled water (Group I). The lesions on day 3rd in the diabetic group given glibenclamide (Group II) were similar to those in the diabetic control group given only distilled water. All of the tubules had been affected by the 3rd day in group three which was given insulin. A small number of spermatogenic cells and giant cells were observed in some tubules. However, almost al of the degenerated tubules had healed on the 7 and 15th days. Even though, recovery on day 15th was very similar in Groups IV-X recovery was much more pronounced in Groups VIII-X beginning from day 3rd.
 
 
 
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