مطالعه تاثیر حفاظتی نارینژنین بر آسیب پیش رس کبد در موش‌های صحرایی دیابتی شده با آلوکسان

محورهای موضوعی : آسیب شناسی درمانگاهی دامپزشکی

داریوش مهاجری ¹ (استاد گروه پاتوبیولوژی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران.)
غفور موسوی ² (استادیار گروه علوم درمانگاهی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران.)
رامین کفاشی الهی ³ (استادیار گروه علوم درمانگاهی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران.)
مهرداد نشاط قراملکی ⁴ (استادیار گروه علوم درمانگاهی، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران.)

تاریخ دریافت : 1394/09/29 تاریخ پذیرش : 1395/03/05 تاریخ انتشار : 1395/03/01

کلید واژه: کبد, موش صحرایی, نارینژنین, دیابت, آلوکسان, استرس اکسیداتیو,

چکیده مقاله :

چکیده دیابت ملیتوس اختلالی متابولیکی است که از شیوع بالایی در سراسر جهان برخوردار می‌باشد. نارسایی کبدی از عوارض عمده بیماری دیابت می باشد. داروهای بسیاری از سراسر جهان جهت مداوای افراد دیابتی توصیه شده‌اند. هدف از این مطالعه ارزیابی اثرات محافظتی نارینژنین بر آسیب پیش رس کبدی در موش های صحرایی دیابتی شده با آلوکسان می باشد. تعداد 40 سر موش صحرایی نر ویستار به طور تصادفی در 4 گروه 10تایی شامل: 1- گروه شاهد سالم، 2-گروه سالم تیمار با نارینژنین، 3- گروه کنترل دیابتی و 4- گروه دیابتی تیمار با نارینژنین تقسیم شدند. دیابت تجربی نیز با تزریق داخل صفاقی تک دز آلوکسان (mg/kg 120) ایجاد گردید. موش های گروه‌های 2 و 4 نارینژنین را به میزان mg/kg50 از راه خوراکی به صورت گاواژ، روزانه و به مدت 3 هفته دریافت کردند. به موش های گروه های شاهد متناظر (گروه‌های 1 و 3) نیز نرمال سالن با حجمی برابر تزریق شد. در پایان دوره آزمایش، شاخص های بیوشیمیایی عملکرد کبد در خون شامل آنزیم‌های آلانین آمینوترانسفراز، آسپارتات آمینوترانسفراز و آلکالین فسفاتاز و آلبومین، پروتئین تام و بیلی‌روبین تام و همچنین ماحصل پراکسیداسیون لیپیدی (مالون‌دی‌آلدئید) و فعالیت آنزیم های سوپراکسید دیسموتاز، کاتالاز، گلوتاتیون پراکسیداز و گلوتاتیون ردوکتاز در هموژنات بافت کبد موش ها اندازه گیری شد. همچنین، آسیب شناسی بافتی جهت ارزیابی درجات مختلف آسیب کبد انجام شد. در موش‌های دیابتی، نارینژنین به‌ طور معنی‌داری میزان آنزیم‌های شاخص آسیب کبد و بیلی‌روبین تام را کاهش و سطوح آلبومین و پروتئین تام سرم را افزایش داد. همچنین، نارینژنین به ‌طور معنی‌داری میزان پراکسیداسیون لیپیدی را در موش‌های دیابتی کاهش و سطوح آنزیم های آنتی‌اکسیدان ‌را در آنها افزایش داد. نتایج هیستوپاتولوژی کبد نیز با یافته‌های بیوشیمیایی در توافق بودند. نتایج بررسی حاضر نشان داد که نارینژنین با خاصیت آنتی اکسیدانی خود از بروز آسیب‌های زود هنگام دیابتی کبد در موش های صحرایی جلوگیری می کند.

چکیده انگلیسی:

Abstract    Diabetes mellitus is a metabolic disorder and its incidence is considered to be high all over the world. Hepatic insufficiency is one of the most important consequences in this disease. A multitude of drugs has been described for the treatment of diabetes throughout the world. The aim of the present study was to assess the protective effect of Naringenin on early liver injury in alloxan-induced diabetic rats. Forty male Wistar rats were randomly assigned into 4 different groups of 10 rats each, including healthy control rats, normal healthy rats receiving Naringenin (50 mg/kg), diabetic rats and diabetic rats receiving Naringenin (50 mg/kg). Diabetes was induced with a single injection of alloxan (120 mg/kg i.p.). Naringenin groups received the drug daily for 3 weeks through gavage. At the end of the experiment, levels of liver function marker enzymes AST (Aspartate aminotransferase), ALT (Alanine aminotransferase) and ALP (Alkaline Phosphatase), TB (Total Bilirubin), Alb (Albumin) and TP (Total Proteins) were assessed in serum. Product of lipid peroxidation (Malondialdehyde; MDA), activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and glutathione reductase (GR) were also assayed in liver homogenate to evaluate antioxidant activity. Moreover, histopathological observations were made to assess the degree of hepatic injury. In alloxanized diabetic rats, Naringenin significantly decreased the levels of serum biomarkers of hepatic injury and TB, and elevated the levels of Alb and TP. Furthermore, Naringenin significantly decreased the lipid peroxidation and elevated the levels of antioxidant enzymes in these rats. Histopathological changes were in agreement with biochemical findings. The findings of this study indicated that Naringenin due to its antioxidant activities protects rats liver from early diabetic hepatopathy.

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