تأثیر عصاره اتانولی زعفران بر هیستوپاتولوژی و شاخص‌های آسیب بافت کبد در موش‌های صحرایی دیابتی شده با استرپتوزوتوسین

محورهای موضوعی : آسیب شناسی درمانگاهی دامپزشکی

محمد رهبانی نوبر ¹ (دانشگاه آزاد اسلامی، واحد اهر، گروه زیست شناسی، اهر، ایران)
داریوش مهاجری ² (دانشگاه آزاد اسلامی، واحد تبریز، ، دانشکده دامپزشکی، گروه پاتوبیولوژی، تبریز، ایران)
علی رضایی ³ (دانشگاه آزاد اسلامی، واحد تبریز، دانشکده دامپزشکی، گروه علوم درمانگاهی، تبریز، ایران)
عادل رضائی مقدم ⁴ (دانشگاه آزاد اسلامی، واحد اردبیل، باشگاه پژوهشگران جوان، اردبیل، ایران)

تاریخ دریافت : 1390/06/30 تاریخ پذیرش : 1390/09/03 تاریخ انتشار : 1390/09/01

کلید واژه: زعفران, کبد, هیستوپاتولوژی, موش صحرایی, دیابت, بیومارکرهای آسیب کبد,

چکیده مقاله :

در این مطالعه اثر محافظتی عصاره اتانولی زعفران بر تغییراتبیوشیمیاییوپاتولوژی بافتکبد در موش های صحرایی دیابتی شده با استرپتوزوتوسین مورد بررسی قرار گرفت. مو ش های صحرایی نر به تعداد 40 سر به طور تصادفی به 4 گروه 10 تایی شامل گروه‌های: 1- شاهد سالم، 2-سالم تیمار با عصاره الکلی کلاله زعفران، 3- دیابتی و 4- دیابتی تیمار با عصاره الکلی کلاله زعفران تقسیم شدند. برای دیابتی کردن موش‌ها، استرپتوزوتوسین با تک دز mg/kg 65 به ‌صورت داخل صفاقی تزریق شد. از زمان شروع آزمایش، به گروه‌های تیمار با عصاره، عصاره به میزان mg/kg40 به مدت 8 هفته به طور روزانه و به روش داخل صفاقی، به شکل محلول در سالین نرمال (/kgml 10) تزریق شد. به گروه های شاهد نیز، نرمال سالین با روش مشابه تجویز گردید. بعد از 8 هفته، شاخص های سرمی آسیب بافت کبد و هیستوپاتولوژی آن مورد بررسی قرار گرفت. موش های صحرایی دیابتی افزایش معنی دار شاخص های سرمی آسیب بافت کبد را در مقایسه با گروه شاهد نشان دادند (05/0p<)، در حالی که در گروه دیابتی تیمار با عصاره الکلی کلاله زعفران، این شاخص ها در مقایسه با گروه دیابتی به طور معنی داری کاهش نشان داد (05/0p<). نتایج آسیب شناسی بافت کبد با یافته های بیوشیمیایی هم راستا بود. نتایجاینمطالعهنشانداد عصاره زعفران دارایاثراتمحافظتیاز بافت کبد در دیابت ناشی از استرپتوزوتوسین می باشد.

چکیده انگلیسی:

In this study, protective effects of saffron against biochemical and histopathological changes of liver were assessed in streptozotocin-induced diabetic rats. Forty male Wistar rats were randomly divided into 4 groups of 10 animals each, including Group 1, healthy control; Group 2 healthy rats treated with saffron extract; Group 3, diabetics and Group 4, diabetics treated with saffron extract. For induction of diabetes, single dose of streptozotocin (75 mg/kg) was injected intraperitoneally. From the beginning of experiment, the extract was injected daily at a dose of 40 mg/kg b.w. by intraperitoneal route for 8 weeks. Control groups received normal saline in similar manner. At the end of experiment, serum biomarkers of liver tissue injury and histological changes of hepatic tissues were evaluated. In diabetic rats, serum levels of functional liver markers were found to be significantly increased as compared to control group (p<0.05), while this markers in diabetic rats treated with saffron extract  significantly decreased as compared to diabetic rats. Histopathological findings were in consistent with biochemical results. The results obtained showed that ethanolic extract of saffron has hepatoprotective activity against diabetic hepatopathy in streptozotocin-induced diabetic rats.  

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