تأثیر عصاره متانولی گیاه Lippia citriodora در پیشگیری و کنترل القاء شده توسط استیک اسید در موش
محورهای موضوعی : زیست شناسی سلولی تکوینی گیاهی و جانوری ، تکوین و تمایز ، زیست شناسی میکروارگانیسممریم تیموری 1 , فریبا خسروی نژاد 2
1 - استادیارگروه زیست شناسی، واحد رودهن ، دانشگاه آزاد اسلامی ، رودهن ، ایران
2 - گروه زیستشناسی، واحد تهران شمال، دانشگاه آزاد اسلامی، تهران، ایران
کلید واژه: پراکسیداسیون لیپیدی, موش, بیماری التهابی روده, Lippia citriodora,
چکیده مقاله :
بیماری التهابی روده (IBD) وضعیتی از درگیری مزمن روده با عوامل ناشناخته می باشد. هر چند که عوامل ایمونولوژیک، ژنتیکی و فاکتورهای محیطی به عنوان زمینه ساز مطرح شده اند. هدف این مطالعه ، بررسی اثرات عصاره متانولی گیاه Lippia citriodora به عنوان یک گیاهدارویی مؤثر در پیشگیریو کنترل القاء شده توسط استیک اسید در موش نژاد Balb/C بود. عصاره گیاه Lippia citriodora با غلظت ، و به موش های نژاد Balb/C مبتلا به داده شد. ( با استفاده از اسیداستیک ایجاد شد). پردنیزولون نیز به عنوان استانداردآزمایش و بررسیهای ماکروسکوپیک و میکروسکوپیک و بیوشیمیایی روی بافت کولون انجام شد. مطالعات بیوشیمیایی از بافت ملتهب شده کولون بهوسیله اندازهگیری فعالیت آنزیم میلوپراکسید از و تعیین غلظت مواد واکنشدهنده باتیوباربیتوریک به عنوان مارکر فعالیت رادیکالهای آزاد و پراکسیداسیون لیپیدی در سلولها انجام شد. نتایج نسان داد که میزان فعالیت آنزیم میلوپراکسیداز و تیوباربیتوریک اسید در موش های دریافت کنندۀ اسیداستیک افزایش یافت درحالیکه در موش های تحت درمان با دوزهای و عصاره Lippia citriodora و پردنیزولون مقادیر و کاهش نشان داد. همچنین موشهای تحت درمان با عصاره متانولی Lippia citriodora و پردنیزولون مقادیر کمتری را برای ویژگیهای ماکروسکوپیک و میکروسکوپیک برطبق خراشیدگی های صورت گرفته، در مقایسه با گروه دریافت کننده اسیداستیک نشان دادند. مؤترترین دوز ، عصاره Lippia citriodora بود که تاثیری مشابه با پردنیزولون داشت. فعالیت آنتیاکسیدانی، ضدمیکروبی و ضدالتهابی Lippia citriodora اثرات درمانی در داشت. ولی مطالعات بالینی بیشتری جهت بررسی اثرات این گیاه در درمان در انسان مورد نیاز است.
Inflammatory bowel disease (IBD) is a chronic condition of the intestine with unknown etiology involving multiple immune, genetic and environmental factors. We were interested to examine the effect of extract from Lippia citrodoria, a medicine plant in prevention and control of experimental mouse IBD. L.citrodoria was administered (50, 150.200 mg/kg) through drinking water to IBD mice (induced by intrarectal administration of acid-induced). Prednisolone was used as the standard drug for comparison. Biochemical, macroscopic and microscopic examination of colon were performed. Biochemical evaluation of inflamed colon was done using assay of myeloperoxidase (MPO) activity and thiobarbituric acid reaction substances(TBARS) concentration as indicators of free radical activity and cells lipid peroxidation. Results indicated that the activity of MPO and lipid peroxidation products (TBARS) increased in acetic acid-treated group while recovered by pretreatment of animals with L.citrodoria (50,150,200 mg/kg) and prednisolone. L.citrodoria (50-100mg/kg) and prednisolone. L.citrodoria (50-200 mg/kg) and prednisolone-treated groups showed significantly lower score values of macroscopic and microscopic characters when compared to the acetic acid – treated group. The benefical effect of L.citrodoria ( 200mg/kg) was comparable to that of prednisolone.It is concludes that the antioxidant, antimicrobial, and anti-inflammatory potentials of L.citrodoria might be the mechanisms by which this extract protects animals against experimentally induced IBD. Proper clinical investigation should be carried out to confirm the activity in human
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