موقعیت‌یابی ایمونوهیستوشیمیایی گرلین در غدد ضمیمه جنسی گاو نر

نوع مقاله : مقاله کوتاه

نویسندگان

1 فارغ التحصیل کارشناسی ارشد فیزیولوژی دام، گروه علوم دامی دانشکده کشاورزی دانشگاه آزاد اسلامی واحد سنندج

2 دانشیار گروه علوم دامی دانشکده کشاورزی دانشگاه آزاد اسلامی واحد سنندج

3 مربی گروه علوم پایه دانشکده دامپزشکی دانشگاه آزاد اسلامی واحد سنندج

چکیده

گرلین هورمون پپتیدی 28 اسید­ آمینه‌ای است که در معده و اکثر بافت‌های محیطی بیان می­شود. با توجه به عدم انجام تحقیقی در خصوص وجود گرلین در غدد جنسی حیوانات، در این تحقیق موقعیت‌یابی گرلین در بافت غدد پروستات، وزیکول سمینال و آمپولای گاو هلشتاین به ‌وسیله تکنیک ایمونوهیستوشیمی بررسی شد. از آنتی‎بادی مونوکلونال موشی ضد گرلین به ‌عنوان آنتی‎بادی اولیه و آنتی‌بادی پلی‌کلونال الاغی ضد ایمنوگلوبین G هورس رادیش پروکسیداز به‌ عنوان آنتی‌بادی ثانویه استفاده شد. نمونه‌های بافتی غدد ضمیمه جنسی از پنج گاو هلشتاین بالغ دو ساله جمع‎آوری شد و برای آزمایش ایمونوهیستوشیمی در فرمالین 10% نگهداری شدند. سپس بلوک‌های پارافینی و مقاطع بافتی تهیه شدند. نتایج نشان داد که واکنش ایمونوهیستوشیمی در سیتوپلاسم سلول‎های ترشحی غده پروستات، وزیکول سمینال و آمپولا مثبت بود، اما شدت رنگ­پذیری در غده پروستات نسبت به دیگر غدد خیلی ضعیف بود. بر اساس نتایج این تحقیق بیان گرلین در برخی غدد ضمیمه جنسی گاو نر می­تواند نشان­دهنده نقش احتمالی این هورمون در پارامترهای باروری اسپرم و اثر آن بر فرآیند لقاح باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Immunohistochemical localization of Ghrelin in sex accessory glands of bull

نویسندگان [English]

  • M. Rahmi 1
  • B. Shokrollahi 2
  • A. A. Amiri 3
1 MSc. Graduated, Department of Animal Science, Agriculture Faculty, Sanandaj branch, Islaic Azad University, Kurdistan, Iran
2 Associate Professor, Department of Animal Science, Agriculture Faculty, Sanandaj branch, Islaic Azad University, Kurdistan, Iran
3 Lecturer, Department of Basic Sciences, Veterinary Faculty, Sanandaj branch, Islaic Azad University, Kurdistan, Iran
چکیده [English]

Ghrelin is a 28 amino acid peptide hormone that is expressed in the stomach and a range of peripheral tissues. Expression and functional role of ghrelin in the sex accessory glands of mammals have not been studied yet (except for human). This study was aimed to determine the immunohistochemical position of ghrelin in prostate, seminal vesicles and ampulla tissues of Holstein bulls. Anti-ghrelin mouse monoclonal antibody was used as primary antibody and donkey polyclonal antibody Anti-IgG Horseradish Peroxidase (HRP) was used as secondary antibody. Samples of sex accessory glands tissues were collected from five Holstein bulls aged two years old, and preserved in 10% buffered formalin for the immunohistochemical test. Then, paraffin blocks and tissue sections were prepared. The immunohistochemical results were positive for the secretory cells of prostate, seminal vesicles and ampulla. But the intensity of staining in the prostate glands was very weak than to the other glands. According to the results of this research, the expression of ghrelin in some accessory glands of the bull may display its possible role in fertility parameters of sperm and overall fertilization process.

کلیدواژه‌ها [English]

  • Ampulla
  • Prostate
  • Holstein bull
  • Ghrelin
  • Vesicle seminal
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