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        1 - Effect of ellagic acid on oxidative stress duo to brain ischemia/hypoperfusion in male rat
        مریم رفیعی راد خدیجه قاسم زاده دهکردی
        Background & Aim: Free radicals are produced in ischemic processes. Nerve damage caused by free radicals may play a role in neurological diseases and antioxidants are protective activity. Ellagic acid is a polyphenol compound with antioxidant properties which is fou More
        Background & Aim: Free radicals are produced in ischemic processes. Nerve damage caused by free radicals may play a role in neurological diseases and antioxidants are protective activity. Ellagic acid is a polyphenol compound with antioxidant properties which is found in fruits like pomegranate, blackberry, and all types of mulberry. This study aimed to evaluate the effect of 14 days of oral administration of ellagic acid (50 mg/kg) on brain oxidative stress indices after permanent bilateral common carotid artery occlusion or ischemia/hypoperfusion in male adult rats. Experimental: A number of 30 rats were divided into test and control groups. To make animal model of permanent cerebral hypo perfusion/ischemia, carotid arteries were ligatured as upper and lower and cut bilaterally. Rat brain tissue was extracted to separate hippocampus and measure malondialdehyde, and thiol (-Sh) groups. Results & Discussion: Our results indicated that malondialdehyde and thiol in ischemia group has significantly increased (p < 0.001) than to control group. In addition, the rate of malondialdehyde and thiol in ischemia group receiving the ellagic acid has significantly decreased (p < 0.001), than to ischemia group. Recommended applications/industries: Ellagic acid possibly with powerful antioxidant properties, can improve the effect of ischemia such as production of free radicals. Manuscript profile
      • Open Access Article

        2 - The effect of Kardeh (Biarum Bovei) Hydro-alcoholic extract on pain threshold in STZ induced diabetic rats
        معصومه سیفی زنگنه مریم رفیعی راد حسین سازگار
        Background & Aim: Diabetes mellitus in long-term through various means such as augmented oxidative stress is associated with disturbances such as pain and cognition in humans and laboratory animals. According to the evidence of anti-diabetic extract of Biarum Bovei More
        Background & Aim: Diabetes mellitus in long-term through various means such as augmented oxidative stress is associated with disturbances such as pain and cognition in humans and laboratory animals. According to the evidence of anti-diabetic extract of Biarum Bovei (BB), Effect of oral administration of this extract was evaluated on blood glucose level and pain threshold in diabetic rats. Experimental: Animals were divided into; Control (intact), diabetic (STZ 70 mg /kg) and diabetic group that received Biarum Bovei Extract (BBE) (50, 100, 200, 400, 800 mg/kg) for two weeks by gavage. Blood glucose was measured from tail blood, then performed tail filick test to measure pain threshold. The results were analyzed statistically through SPSS, One way ANOVA and Tukey's test. Diabetes led to a decrease in blood glucose (p < 0.001) and pain threshold (p <0.001) prescribed doses (100, 200 mg/kg) BBE resulted a decrease in blood glucose (p Results & Discussion: The findings of this study showed that Hydro-alcoholic extract of kadeh (BB) possibly with high-antioxidant property is able to reduce blood glucose and diabetes complications such as pain in animals. Recommended applications/industries: Considering the low side effects of herbal medicines, especially antioxidants including Kardeh can be used to reduce the complications of diabetes with drug therapy. Manuscript profile
      • Open Access Article

        3 - Effect of ellagic acid on thiol levels in different brain tissue in an animal model of Parkinson's disease
        مریم رفیعی راد زینب عیدی پور
        Background & Aim: Parkinson's disease (PD) can be created with loss of dopaminergic substantial nigra neurons which is widely associated with oxidative stress and reduced glutathione (GSH), as the most important and abundant thiol in tissues and one of the antioxida More
        Background & Aim: Parkinson's disease (PD) can be created with loss of dopaminergic substantial nigra neurons which is widely associated with oxidative stress and reduced glutathione (GSH), as the most important and abundant thiol in tissues and one of the antioxidant defense, is one of the earliest biochemical events related to Parkinson's and consumption of antioxidants has a protective effect. In the present study, effect of ellagic acid on the rate of thiol groups has been studied within the hippocampus, striatum, cortex and cerebellum tissues in Parkinson's disease. Experimental: In this study were used 40 adult male rats that were divided randomly into eight groups: control, Parkinson's, and three Parkinson groups that once daily for 14 days received the gavage from doses 10, 25, and 50 mg/kg of ellagic acid. Parkinson's disease was induced with injection of 8 µg of 6_ hydroxy dopamine (6-OHDA) nerve toxin in 2 ml of saline containing 1% ascorbic acid in the middle-anterior bundle (MFB) of the left cerebral hemisphere of rats. After 14 days all rat brain were collected for the isolation and measurement of tissue thiol. Results & Discussion: In the PD group, in the all tissues observed a significant decrease in the thiol levels than the control group and administered ellagic acid in particular, 25 and 50 mg/kg was able to induce the effect of increase in the all tissues. This increase was significant in all tissues except cerebellum than PD group. Recommended applications/industries: Ellagic acid with having the ability to increase thiol can be used for treating and preventing progression of Parkinson's disease that created by oxidative stress. Manuscript profile