اثر تمرینات تناوبی و تداومی بر بیان ژن‌های کبدی مربوط به انتقال معکوس کلسترول

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه علوم ورزشی، واحد شیروان، دانشگاه آزاد اسلامی، شیروان، ایران

2 استادیار، گروه زیست شناسی، دانشگاه پیام نور، تهران، ایران

چکیده

 
دفع کلسترول اضافی از کبد به روده با فعالیت پروتئین‌هایی چون LXRα، LXRβ، RXRα، ABCG5 و ABCG8 صورت می‌گیرد که در پیشگیری از آتروسکلروز مؤثر است. در این تحقیق تأثیر تمرینات کم‌شدت تداومی (LIT) و پرشدت تناوبی (HIT) بر بیان ژن‌های این مواد در رت‌های نر ویستار پس از رژیم پرچرب بررسی شده است. پژوهش حاضر در دو مرحلة چاق کردن (13 هفته) و سپس تمرین (12 هفته) انجام گرفت. گروه‌ها در مرحلة تمرین شامل کنترل، تمرین HIT و تمرین LIT بودند. در پایان تمرینات میزان بیان ژن متغیرهای وابسته بررسی شد. تجزیه‌وتحلیل یافته‌ها نشان داد که میزان بیان ژن همة متغیرها به‌غیر از ABCG8 در گروه‌های تجربی نسبت به گروه کنترل به‌طور معناداری بیشتر بود (05/0P≤). در مورد ABCG8 به‌غیر از تفاوت غیرمعنادار گروه‌های کنترل با تمرین LIT (P>0.05)، تفاوت بقیة گروه‌ها معنادار بود (05/0P≤). به‌طور کلی تمرینات HIT و LIT تأثیر مطلوبی بر بیان ژن‌های کبدی مربوط به انتقال معکوس کلسترول می‌گذارند و تأثیر تمرینات HIT بیشتر از LIT است.

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Interval and Continuous Training on Liver Genes Expression Related to Reverse Cholesterol Transport

نویسندگان [English]

  • Mohsen Jafari 1
  • sediqeh jalali 2
1 Department of Sport Sciences, Shirvan Branch, Islamic Azad University, Shirvan, Iran
2 Department of Biology, Payam Noor University, , Tehran, Iran
چکیده [English]

 
The excretion of excess cholesterol from liver into ileum is accompanied with the activity of proteins such as LXRα, LXRβ, RXRα, ABCG5 and ABCG8 that influences the prevention of atherosclerosis. In this study, the effect of low intensity continuous training (LIT) and high intensity interval training (HIT) on gene expression of these substances in male Wistar rats after high fat diet was examined.This study was conducted in two steps: fatten (13 weeks) and training (12 weeks). Groups in the training step included control, HIT and LIT. After the training, gene expression of dependent variables was analyzed.Analysis of data showed significant elevation of genes expression in all variables except for ABCG8 in experimental groups compared with the control group (P≤0.05). Regarding ABCG8, except for the insignificant difference between control and LIT groups (P>0.05), the differences of other groups were significant (P≤0.05).Overall, HIT and LIT have beneficial effects on liver genes expression related to reverse cholesterol transport and HIT has greater effect than LIT.

کلیدواژه‌ها [English]

  • Reverse Cholesterol Transport
  • Endurance Training
  • High Intensity Interval Training
  • High Fat Diet
  • Liver
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