Fereshteh Keshavarzian; Abdolhassan Doulah; Maryam Rafieirad
Abstract
Parkinson is a chronic and widespread neurodegenerative disorder. In this study, the effects of swimming exercise and oleuropein supplementation on oxidative stress of brain tissue in experimental model of Parkinson's disease in rat were investigated. In this experimental study, 40 adult male Wistar ...
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Parkinson is a chronic and widespread neurodegenerative disorder. In this study, the effects of swimming exercise and oleuropein supplementation on oxidative stress of brain tissue in experimental model of Parkinson's disease in rat were investigated. In this experimental study, 40 adult male Wistar rats were selected and divided into five groups including: control group, Parkinson's group, swimming exercise, oleuropein consumption, swimming exercise with oleuropein consumption. The groups were forced to swim for 4 weeks (five sessions per week for 30 minutes each session) and groups 4 and 5 received 20 mg of oleuropein daily per kilogram of body weight orally for 4 weeks. Serum levels of the variables were evaluated using the thiobarbituric acid method. Data were analyzed using one-way ANOVA and Tukey post hoc tests (p≥0.05). In this study, oleuropein-Parkinson, swimming exercise-Parkinson, and swimming exercise with oleuropein-Parkinson consumption significantly decreased Malondialdehyde levels, significantly increased glutathione peroxidase activity and thiol compared to Parkinson's group (P<0/001). Swimming exercise with oleuropein consumption can improve antioxidant defense and decrease lipid peroxidation. Therefore, this interactive effect may necessitate more therapeutic and preventive treatment to prevent oxidative stress-related diseases.
Zahra Nazari Parchestani; Maryam Rafieirad
Abstract
Ischemia in rat brain causes severe neuronal damage and consequently anxiety and depression disorders. The herniarin has a phenolic compound and is a powerful antioxidant. The aim of this study was to investigate the effect of herniarin on anxiety and depression in ischemia model in male rats. In this ...
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Ischemia in rat brain causes severe neuronal damage and consequently anxiety and depression disorders. The herniarin has a phenolic compound and is a powerful antioxidant. The aim of this study was to investigate the effect of herniarin on anxiety and depression in ischemia model in male rats. In this experimental study, 50 male Wistar rats(200-250g) were divided into 5 groups: control group, sham and ischemic group and ischemic groups receiving doses of 150 and 300 mg/kg herniarin by gavage method. To induce ischemia, bilateral carotid arteries were separated, blocked in two, and cut off in the middle section. Anxiety assessment was performed during the open-box test. Immobility time in forced swimming was also measured to measure depression. In the ischemic rats a significantly increased anxiety and an increase of mobility duration in both open box and forced swimming tests were observed (P<0.001). When the doses of 150-300 mg/kg herniarin was prescribed the times of elevation of hands was increased (P<0.001) and a significantly reduction of excretion times in each dose was observed (P<0.001) and consumption of herniarin doses 150-300 mg/kg was significantly increased in the ischemicrats when they passed several times through squares in the open box (P<0.001). herniarin has the effect of both anti-anxiety and- depression in the experimental model.
Seyed Ebrahim Hosseini; Davood Mehrabani; Yasaman Avazpour; Maryam RafieiRad
Abstract
Glucocorticoids are observed to increase at anxiety and different stressful situations. This augmentation is driven by stimulation of the hypothalamic-pituitary-adrenal axis which can threaten physical and mental health in long-term. Thus, this study compared the effects of diazepam and currant hydroalcoholic ...
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Glucocorticoids are observed to increase at anxiety and different stressful situations. This augmentation is driven by stimulation of the hypothalamic-pituitary-adrenal axis which can threaten physical and mental health in long-term. Thus, this study compared the effects of diazepam and currant hydroalcoholic extract on serum corticosterone level in adult male rat. In this reserch, 48 adult male mice were used in 6 groups of 8 animals, including the control (no treatment), Sham (receiving water) and 4 experimental groups receiving doses of 100, 200, 400 mg/kg from currant hydroalcoholic extract and 1 mg/kg of diazepam by gavage. After 15 days, rats perceived stress in elevated plus maze, after which corticosterone level was measured in the serum of the blood collected from their heart. Results were statically analyzed using ANOVA and Tukey's test. The results showed that the doses of 200 and 400 mg/kg from currant extract significantly increases (P≤0.05) and diazepam significantly decreases (P≤0.01) the corticosterone levels, serum. Diazepam reduced corticosterone levels in serum by affecting the benzodiazepine receptors and facilitating inhibitory effect of GABA while currant extract increased it probably by stimulating noradrenergic pathways.
