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    Hematoprotective Effect of N(G)-Nitro-L-Arginine Methyl Ester and Lycopene on Hematoxicity in Trinitrobenzene Sulfonic Acid–Induced Colitis in Rat
    (2015) Cetik, Songul; Ayhanci, Adnan; Altuner, Yilmaz; Musmul, Ahmet; Sahinturk, Varol
    Anemia is a neglected manifestation of inflammatory bowel disease (IBD) although it is commonly observed in IBD patients. Attempts to overcome anemia in IBD would help not only general well being of the patients but also minimize disease consequences. In this experimental study, the possible hematoprotective effects of lycopene and NG–nitro-L-arginine methyl ester (L-NAME) on colitis induced by TNBS were analyzed. 112 rats were assigned to 16 groups; control group, intrarectal 120 mg/kg TNBS group, intraperitoneal 40 mg/kg L-NAME group, 1 mg/kg olive oil group, 5 and 10 mg/kg lycopene groups. Each experimental group was divided into 3 subgroups according to duration of treatment. On the very first day of treatment number of erythrocytes decreased in all groups except TNBS treated group whereas leukocyte numbers increased in all groups except TNBS treated group pointing out an inflammation. The number of platelets decreased in all study groups with the exception of TNBS group. On the second day, while erythrocyte and platelet numbers increased in all but not in TNBS group, leukocytes decreased in all the groups. On the third day, erythrocyte and platelet numbers increased in all groups except for the 10 mg/kg lycopene group. While the number of leukocytes decreased in the 10 mg/kg lycopene group, it remained the same in the other groups as those observed on the second day. These results show that lycopene could have effects on hemopoiesis as well as in prevention of anemia in IBD.
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    Protective Effect of Carvacrol Against Oxidative Stress and Heart Injury in Cyclophosphamide-Induced Cardiotoxicity in Rat
    (INST TECNOLOGIA PARANA, 2015) Cetik, Songul; Ayhanci, Adnan; Sahinturk, Varol
    Possible protective effects of carvacrol (Car) against cyclophosphamide (CP)-induced cardiotoxicity was examined in this study. Experimental groups of the rats were randomly divided into 13 groups, each including seven animals: Group 1 (control) treated with saline; groups 2, 3, and 4 treated with 50, 100, or 150 mg/kg of CP, respectively; group 5 treated with 0.5 mL olive oil; groups 6 and 7 treated with 5.0 and 10 mg/kg of Car, respectively; groups 8, 9, or 10 treated with respective CP plus 5.0 mg/kg of Car; and groups 11, 12, or 13 treated with respective CP plus 10 mg/kg of Car. Serum alanine transaminase (ALT), aspartat transaminase (AST), lactate dehydrogenase (LDH), malondialdehyde (MDA), creatine kinase-MB (CK-MB), total oxidant state (TOS), oxidative stress index (OSI), and levels were high only in the CP groups. There was a dose-dependence on the CP-induced cardiotoxicity. Hemorrhage, inflammatory cell infiltration and the separation of the muscle fibers in the heart tissue supported the biochemical data. With 5.0 and 10 mg/kg Car, there was an important decrease in the CP toxicity and this was related to the oxidative and nitrosative stress in the CP-induced cardiotoxicity. Reduced inflammation and lipid peroxidation in the heart tissue and increase of serum glutathione (GSH) and total antioxidant capacity (TAS) levels were found when carvacrol was applied. Based on these findings, it could be proposed that Car was a strong candidate in preventing the CP-induced cardiotoxicity but further clinical studies should be done in order to verify its application on humans.
  • Küçük Resim
    Öğe
    Protective Effect of Carvacrol Against Oxidative Stress and Heart Injury in Cyclophosphamide–Induced Cardiotoxicity in Rat
    (2016) Cetik, Songul; Ayhanci, Adnan; Sahinturk, Varol
    Possible protective effects of carvacrol (Car) against cyclophosphamide (CP)-induced cardiotoxicity was examined in this study. Experimental groups of the rats were randomly divided into 13 groups,each including seven animals: Group 1 (control) treated with saline; groups 2, 3, and 4 treated with 50, 100, or 150 mg/kg of CP, respectively; group 5 treated with 0.5 mL olive oil; groups 6 and 7 treated with 5.0 and 10 mg/kg of Car, respectively; groups 8, 9, or 10 treated with respective CP plus 5.0 mg/kg of Car; and groups 11, 12, or 13 treated with respective CP plus 10 mg/kg of Car. Serum alanine transaminase (ALT),aspartat transaminase (AST), lactate dehydrogenase (LDH), malondialdehyde (MDA),creatine kinase-MB (CK-MB), total oxidant state (TOS), oxidative stress index (OSI), and levels were high only in the CP groups. There was a dose-dependence on the CP-induced cardiotoxicity. Hemorrhage, inflammatory cell infiltration and the separation of the muscle fibers in the heart tissue supported the biochemical data. With 5.0 and 10 mg/kg Car, there was an important decrease in the CP toxicity and this was related to the oxidative and nitrosative stress in the CP-induced cardiotoxicity. Reduced inflammation and lipid peroxidation in the heart tissue and increase of serum glutathione (GSH) and total antioxidant capacity (TAS) levels were found when carvacrol was applied. Based on these findings, it could be proposed that Car was a strong candidate in preventing the CP-induced cardiotoxicity but further clinical studies should be done in order to verify its application on humans.