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Öğe Origanum majorana L. extract effects on kidney tissue in STZ-induced DM rats(Marmara Univ, 2023) Cakar, Alican; Aydemir, Oguzhan; Kiyak-kirmaci, Huemeysa; Polat, Elif Beyzanur; Taskin, Turgut; Kabasakal, Levent; Elcioglu, Hatice KubraDiabetes mellitus is a chronic disease characterized by decreased insulin synthesis or increased blood glucose due to insulin resistance. In this study, we aimed to investigate the protective role of Origanum majorana L. on the biochemical parameters of rats induced by streptozotocin (STZ). Male Sprague-Dawley (SD) rats weighing 300-400 g were used. Rats were divided into 3 groups control, diabetes mellitus, and diabetes mellitus + Origanum majorana L. Citrate buffer was used i.p. in the control group. To induce experimental diabetes in rats, streptozotocin (60 mg/kg) was injected intraperitoneally (i.p.). After 48 hours, rats with blood glucose values higher than 200 mg/dL were considered diabetic. Diabetic rats were divided into two groups. While the first group was not treated, the second group received 200 mg/kg of Origanum majorana L. extract for 6 weeks. In this study, Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), and creatinine values were measured in serum. Malondialdehyde (MDA) and glutathione (GSH) levels were measured in kidney and liver tissues. It was found that AST, ALT, and creatinine values increased in diabetes and decreased significantly in the treatment group. MDA levels were increased and GSH values were decreased in diabetes. Origanum majorana L. treatment decreased lipid peroxidation and resulted in a significant increase in GSH levels. In conclusion, our findings show that Origanum majorana L. treatment has a protective effect against nephropathy in diabetes by preventing oxidative damage.Öğe The effects of chard extract against streptozotocin-induced erectile dysfunction in rats(Istanbul University, 2024) Aydın, Mustafa; Saçan, Özlem; Kabasakal, Levent; Çetinel, Şule; Kadıhasanoğlu, Mustafa; Kendirci, Muammer; İpçi, Yeşim; Yanardağ, Refiye; Şener, GökselBackground and Aims: To analyze the potential therapeutic effects of chard against streptozotocin (STZ) -induced erectile dysfunction (ED) and oxidative damage in the corpus cavernousum in rats. Materials and Methods: In this study, Sprague-Dawley rats (250-300g) were allocated into groups as follows: control, diabetic, diabetic + chard, and diabetic + insulin. In order to induce diabetes, rats were given 65 mg/kg intraperitoneal streptozotocin. Chard extract was given orally at a dose 2 g/kg for 45 days beginning on 15 th days. Sixty days after STZ injection, intracavernosal pressure (ICP) was measured and rats were decapitated. Blood samples were obtained for glucose, asymmetric dimethylarginine (ADMA)levels, and lactate dehydrogenase (LDH) activity while cavernous tissues were taken to analyze luminol and lucigenin chemiluminescence (CL), malondialdehyde and glutathione and along with histological analysis. Results: The results revealed that diabetes caused significant decreases in cavernosal tissue glutathione levels, while luminol and lucigenin CL, and malondialdehyde levels were significantly elevated. Plasma glucose, ADMA levels, and LDH activity were also found to be increased in diabetic group. On the other hand, both chard extract and insulin treatment reversed these biochemical parameters significantly. Furthermore, it was found that the ICP value examined for evaluating erectile functions were lower in the diabetic group, but increased in both treatment groups which were similar to the control values. Conclusion: According to our results, chard extract, similar to insulin, reduced diabetes -induced oxidative damage in cavernosal tissue and protected erectile functions. This effects may be attributed its hypoglycemic and antioxidant properties.Öğe The effects of chard extract against streptozotocin-induced erectile dysfunction in rats(İstanbul Üniversitesi Yayınevi, 17.11.2024) Aydin, Mustafa; Saçan, Ozlem; Kabasakal, Levent; Cetinel, Sule; Kadihasanoglu, Mustafa; Kendirci, Muammer; Söbmez, Yeşim İpçi; Yanardag, Refıye; Şener, GökselBackground and Aims: To analyze the potential therapeutic effects of chard against streptozotocin (STZ) -induced erectile dysfunction (ED) and oxidative damage in the corpus cavernousum in rats. Materials and Methods: In this study, Sprague-Dawley rats (250-300g) were allocated into groups as follows: control, diabetic, diabetic + chard, and diabetic + insulin. In order to induce diabetes, rats were given 65 mg/kg intraperitoneal streptozotocin. Chard extract was given orally at a dose 2 g/kg for 45 days beginning on 15th days. Sixty days after STZ injection, intracavernosal pressure (ICP) was measured and rats were decapitated. Blood samples were obtained for glucose, asymmetric dimethylarginine (ADMA)levels, and lactate dehydrogenase (LDH) activity while cavernous tissues were taken to analyze luminol and lucigenin chemiluminescence (CL), malondialdehyde and glutathione and along with histological analysis. Results: The results revealed that diabetes caused significant decreases in cavernosal tissue glutathione levels, while luminol and lucigenin CL, and malondialdehyde levels were significantly elevated. Plasma glucose, ADMA levels, and LDH activity were also found to be increased in diabetic group. On the other hand, both chard extract and insulin treatment reversed these biochemical parameters significantly. Furthermore, it was found that the ICP value examined for evaluating erectile functions were lower in the diabetic group, but increased in both treatment groups which were similar to the control values. Conclusion: According to our results, chard extract, similar to insulin, reduced diabetes-induced oxidative damage in cavernosal tissue and protected erectile functions. This effects may be attributed its hypoglycemic and antioxidant properties.Öğe The effects of chard extract against streptozotocin-induced erectile dysfunction in rats(İstanbul Üniversitesi Yayınevi, 17.11.2024) Aydin, Mustafa; Saçan, Ozlem; Kabasakal, Levent; Cetinel, Sule; Kadihasanoglu, Mustafa; Kendirci, Muammer; Söbmez, Yeşim İpçi; Yanardag, Refıye; Şener, GökselBackground and Aims: To analyze the potential therapeutic effects of chard against streptozotocin (STZ) -induced erectile dysfunction (ED) and oxidative damage in the corpus cavernousum in rats. Materials and Methods: In this study, Sprague-Dawley rats (250-300g) were allocated into groups as follows: control, diabetic, diabetic + chard, and diabetic + insulin. In order to induce diabetes, rats were given 65 mg/kg intraperitoneal streptozotocin. Chard extract was given orally at a dose 2 g/kg for 45 days beginning on 15th days. Sixty days after STZ injection, intracavernosal pressure (ICP) was measured and rats were decapitated. Blood samples were obtained for glucose, asymmetric dimethylarginine (ADMA)levels, and lactate dehydrogenase (LDH) activity while cavernous tissues were taken to analyze luminol and lucigenin chemiluminescence (CL), malondialdehyde and glutathione and along with histological analysis. Results: The results revealed that diabetes caused significant decreases in cavernosal tissue glutathione levels, while luminol and lucigenin CL, and malondialdehyde levels were significantly elevated. Plasma glucose, ADMA levels, and LDH activity were also found to be increased in diabetic group. On the other hand, both chard extract and insulin treatment reversed these biochemical parameters significantly. Furthermore, it was found that the ICP value examined for evaluating erectile functions were lower in the diabetic group, but increased in both treatment groups which were similar to the control values. Conclusion: According to our results, chard extract, similar to insulin, reduced diabetes-induced oxidative damage in cavernosal tissue and protected erectile functions. This effects may be attributed its hypoglycemic and antioxidant properties.
