اثر 731 miR بر روی آسیب های چشمی ماهی قزل آلای رنگین کمان (Onchorhynchus mykiss) در ابتلای به بیماری سپتی سمی خونریزی دهنده ویروسی

نوع مقاله : بیماری ها

نویسندگان

1 گروه علوم و زیست فناوری جانوری، دانشکده علوم و فن آوری زیستی، دانشگاه شهید بهشتی، تهران، ایران

2 گروه علوم پایه و بهداشت، دانشکده علوم تخصصی دامپزشکی، واحد علوم تحقیقات تهران، دانشگاه آزاد اسلامی، ایران

3 گروه فیزیولوژی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران

4 گروه پاتولوژی، دانشکده علوم تخصصی دامپزشکی، واحد علوم تحقیقات تهران، دانشگاه آزاد اسلامی، ایران

چکیده

در میان بیماری های مختلف ویروسی در ماهی، ویروس (VHSV) به عنوان مهم ترین عفونت ویروسی در ماهی قزل آلا شناخته شده است. در بررسی حاضر، تأثیر miR-731 بر روی آسیب دیدگی چشم یا اگزوفتالمی در ماهی قزل آلای رنگین کمان (Onchorhynchus mykiss) بررسی شده است. در این آزمایش ، ماهی های (1 ± 20) گرم برای تعیین احتمال پیشگیری بیماری VHS با miRNA در چهار گروه اصلی و سه تکرار، شاهد منفی بدون تزریق، فیزیولوژی با تزریق سالین، شاهد مثبت با تزریق VHSV و گروه آزمایشی  با تزریق miRNA و سپس تزریق ویروس تقسیم بندی شدند. فعالیت کربنیک آنهیدراز (CA) نقش مهمی در کنترل و تنظیم فشار داخل چشم دارد که مقدار آن در گروه ها بررسی شد. نتایج نشان داد که تمام حیوانات در کنترل مثبت دچار اگزوفتالمی شدند، در گروه شاهد منفی، گروه فیزیولوژی و گروه آزمایشی اثری از اگزوفتالمی مشاهده نشد و تفاوت معنی داری بین میزان آنزیم کربنیک آنهیدراز در گروه شاهد مثبت با سایر گروه ها وجود داشت ( P<0.05). مطالعات بیش تری برای تایید مکانیسم دقیق مهار ویروس توسط miRNA مورد نیاز است، اما نتایج حاضر تا حدی نشان دهنده کاهش علائم بیماری در چشم توسط miRNA در ماهی قزل آلای رنگین کمان در مقابل عفونت VHSV است.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of miR-731 on eye damage in rainbow trout (Onchorhynchus mykiss) infected with viral hemorrhagic septicemia

نویسندگان [English]

  • Noshin Zamannejad 1
  • Mohammadreza Bigdeli 1
  • Abbasali Motalebi 2
  • Hamid Kahram 3
  • Adel Haghigi khiabanian asl 4
1 Tehran
2 Tehran
3 Karaj
4 Tehran
چکیده [English]

Among the various viral diseases in fish, viral hemorrhagic septicemia virus (VHSV) could be mentioned as the most significant viral infection which has now been identified for its worldwide devastating effects on trout. In the present investigation, the influence of the miR-731 on eye damage with exophthalmos (pop-eye) of VHSV in rainbow trout (O. mykiss) was examined. In current clinical trials, fishes (20± 1) g were examined to determine the possibility of pretreatment VHS disease by miR-731 in four main groups, including negative control without any injection, vehicle that received saline, positive control that were infected by VHSV (IP), and experimental group that were received miR-731 48 hour pre viral injection. Each main group subdivided into three subgroups. Carbonic anhydrase (CA) activity plays an important role in controlling aqueous production in the eye and in regulating intraocular pressure. The rate of carbonic anhydrase on trout eye was assessed in each group. Our results revealed that all animals in the positive control showed pop-eye, whereas in the negative control, the vehicle and the experimental groups were not observed any exophthalmos and there is significant difference between the rate of carbonic anhydrase in the positive control group and other groups. Although more studies are needed to verify the exact mechanisms of miR-731 viral inhibition pathway, present results partly proved that miR-731 pretreatment could decrease the sign of VHS disease eye damage.

کلیدواژه‌ها [English]

  • Viral Hemorrhagic Septicemia
  • miRNA
  • exophtalmos
  • carbonic anhydrase
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