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مهار تولید ROS از طریق افزودن آنتی اکسیدان هدفمند 2-4-دی‌نیتروفنول و تاثیر آن بر عملکرد اسپرم منجمد-یخ‌گشایی خروس | ||
| علوم دامی | ||
| مقاله 1، دوره 32، شماره 123، شهریور 1398، صفحه 3-16 اصل مقاله (1.12 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/asj.2018.121379.1674 | ||
| نویسندگان | ||
| ناهید محمدی1؛ حسین دقیق کیا* 2 | ||
| 1دانشجوی کارشناسی ارشد علوم دامی، فیزیولوژی دام دانشگاه تبریز | ||
| 2استاد گروه علوم دامی، دانشکده کشاورزی، دانشگاه تبریز | ||
| چکیده | ||
| میتوکندری‌ها مهمترین منبع تولید کننده ROS بوده و ویژگی‌های منحصر به فرد میتوکندری مانع از ورود آنتی‌اکسیدان‌ها به آن می‌شود. لذا، استفاده از آنتی‌اکسیدان‌هایی که بتوانند از غشای میتوکندری عبور کرده و ROSهای این قسمت را مهار نمایند، می‌تواند راهکار مناسبی در کاهش آسیب‌های ناشی از ROS و بهبود کیفیت اسپرم و باروری باشد. هدف از پژوهش حاضر استفاده از ترکیبات جفت‌جدا کن میتوکندری به منظور کاهش صدمات ناشی از ROS و افزایش زنده‌مانی اسپرم بعد از یخ‌گشایی می‌باشد. استحصال منی با استفاده از روش مالش پشتی- شکمی از 14 خروس نژاد راس با 28 هفته سن انجام گرفت. بعد از ارزیابی اولیه، نمونه های منی با هم مخلوط و پس از رقیق‌سازی و افزودن 2-4-دی‌نیتروفنول ( (DNPدر پنج سطح (0، 25/0، 50/0، 75/0، 1 نانومولار)، سردسازی شده و متعاقباً منجمد شدند. پس از دو ماه، نمونه‌های منی یخ‌گشایی شده از نظر درصد اسپرم‌های مرده و زنده، فراسنجه‌های حرکتی اسپرم، یکپارچگی‌غشای اسپرم و میزان لیپید پراکسیداسیون و مورفولوژی اسپرم مورد ارزیابی قرار گرفتند. نتایج این مطالعه نشان داد که افزودن DNP در سطح 75/0 نانومولار سبب بهبود تحرک کل، تحرک پیش-رونده، زنده‌مانی، یکپارچگی غشای پلاسمایی، اسپرم سالم، همچنین کاهش معنی‌دار غلظت MDA نسبت به گروه شاهد شد (05/0p <). | ||
| کلیدواژه‌ها | ||
| میتوکندری؛ جفت‌جدا‌کن‌های میتوکندری؛ گونه‌های فعال اکسیژن | ||
| عنوان مقاله [English] | ||
| Effect of 2, 4-Dinitrophenol on reactive oxygen species production in mitochondria and improvement of sperm viability after freeze-thawing process of Rooster semen | ||
| نویسندگان [English] | ||
| Nahid Mohammadi1؛ Hossein Daghigh Kia2 | ||
| 1Department of Animal Science, Faculty of Agriculture, University of Tabriz | ||
| 2University of Tabriz | ||
| چکیده [English] | ||
| Regarding the role of mitochondria in the quality of sperm motility and fertility, protection of mitochondrial function against ROS-induced damage can be an important step in improving roster sperm fertility. The mitochondria are the most important source of ROS and the unique properties of mitochondria prevent antioxidants from entering, which results in poor antioxidant performance in protecting ROS-induced damage. Therefore, the use of antioxidants that can pass through the mitochondrial membrane and inhibit ROS in this region can be a good way to reduce the damage caused by ROS and improve the sperm quality and fertility. The aim of the present study was to use mitochondrial mild uncoupling combinations to reduce the risk of ROS-induced injuries and increase the survival of sperm after freeze-thawing. For this purpose, 14 Ross breed rooster with 28 weeks of age were used. The semen was taken by massaging the abdomen-back procedure. After initial evaluation, semen samples were pooled After dilution of semen samples and addition of 2-4-dinitrophenol (DNP) at five levels (0, 0.25, 0.5, 0.75, 1 nM), they were cooled and then frozen. After two months, semen samples were thawed and evaluated for the percentage of dead and live sperm, sperm motility parameters, membrane integrity, lipid peroxidation and sperm morphology. The results of this study showed that addition of DNP at 0.75 nM resulted in improvement in total and progressive motility, viability, plasma membrane integrity and sperm normality compared to the control group, and significantly decreased MDA concentration compared to control group (p <0.05). | ||
| کلیدواژه‌ها [English] | ||
| Mitochondria, Mitochondrial mild uncoupling, Reactive oxygen species | ||
| مراجع | ||
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