ورزش و علوم زیست حرکتی

ورزش و علوم زیست حرکتی

تاثیر یک دوره تمرین شنا بر میزان حافظه و اینترلوکین 6 در هیپوکامپ و پرفرونتال کورتکس موش های مبتلا به ترومای مغزی

نوع مقاله : مقاله پژوهشی

نویسندگان
گروه فیزیولوژی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، واحد مرکزی کرج، دانشگاه پیام نور، استان البرز، ایران
چکیده
مقدمه و هدف: ترومای ­مغزی یکی از شایع­ ترین علل آسیب به سیستم عصبی مرکزی است که می­ تواند باعث مرگ و ناتوانی­ های بلندمدت شود. هدف از انجام پژوهش حاضر، بررسی تاثیر یک دوره تمرین شنا بر میزان حافظه و اینترلوکین 6 در هیپوکامپ و پرفرونتال کورتکس موش­ های مبتلا به ترومای مغزی است.
مواد و روش­ ها: تحقیق حاضر از نوع تجربی و توسعه­ ای بود. تعداد 40 سر موش نر نژاد NMRI به صورت تصادفی ساده به 2 گروه مساوی (موش­ های تمرین و موش­های بدون تمرین) تقسیم شدند. موش­ های گروه تمرین از سن 28 روزگی تا سن 80 روزگی به مدت 8 هفته (5 روز در هفته) تحت انجام تمرین شنا قرار گرفتند. بعد از اتمام پروتکل ورزشی هرگروه به روش تصادفی ساده به 2 گروه مساوی، موش­ های بدون تمرین (کنترل، تروما) و موش ­های تمرین (تمرین شنا، تمرین شنا + تروما) تقسیم شدند. در انتهای هفته هشتم، القای تروما در گروه تمرین شنا + تروما و تروما با روش سقوط وزنه، بر روی ناحیه تمپورال راست تنظیم و انجام شد. 14 روز پس از القای تروما موش ­ها مورد سنجش حافظه تشخیص شی جدید قرار گرفتند. تحلیل آماری از طریق آزمون تحلیل واریانس یک طرفه با آزمون تعقیبی توکی در سطح معناداری 0.05≥P و با استفاده از نرم ­افزار SPSS-26 صورت پذیرفت.
یافته‌ها: نتایج پژوهش نشان داد که 8 هفته تمرین شنا باعث افزایش معنادار میزان حافظه در موش­ های مبتلا به ترومای­ مغزی می­شود (0.001=P). همچنین 8 هفته تمرین شنا باعث کاهش معنادار میزان اینترلوکین 6 در پرفرونتال کورتکس موش­ های مبتلا به ترومای ­مغزی می­ شود (0.003=P) ولی این کاهش در هیپوکامپ معنادار نبود (0.076=P).
بحث و نتیجه‌گیری: نتایج پژوهش حاضر نشان داد تمرینات شنا قبل از ترومای مغزی از طریق مکانیسم­ هایی از جمله کاهش سطح سایتوکاین­ های پیش التهابی مانند اینترلوکین 6 می ­تواند باعث کاهش التهاب و اختلالات حافظه ناشی از ترومای مغزی شود.
کلیدواژه‌ها

عنوان مقاله English

The effect of a swimming training course on memory and IL-6 level in the Hippocampus and Prefrontal Cortex of Mice with Traumatic Brain Injury

نویسندگان English

arefe naseri
adele naseri
Department of Sports Physiology, Faculty of Physical Education and Sports Sciences, Karaj Central Branch, Payam Noor University, Alborz Province, Iran
چکیده English

Introduction and Purpose: Brain trauma is one of the most common causes of damage to the central nervous system that can cause death and long-term disabilities. The purpose of this research is to investigate the effect of a swimming training course on the amount of memory and interleukin-6 in the hippocampus and prefrontal cortex of rats with brain trauma.
Materials and Methods: The current research is experimental and developmental. 40 NMRI male mice were randomly divided into 2 equal groups (trained mice and non-trained mice). Mice in the training group underwent swimming training from the age of 28 days to the age of 80 days for 8 weeks (5 days per week). After completing the exercise protocol, each group was divided into 2 equal groups by a simple random method, rats without training (control, trauma) and training rats (swimming training, swimming training trauma). At the end of the eighth week, trauma induction was performed on the right temporal region in the trauma swimming training group and trauma by weight drop method. 14 days after trauma induction, the rats were tested for new object recognition memory. Statistical analysis was done through one-way analysis of variance with Tukey's post hoc test at a significance level of P≥ 0.05 and using SPSS-26 software.
Results: The results of the research showed that 8 weeks of swimming exercise significantly increases the amount of memory in rats suffering from brain trauma (P=0.001). Also, 8 weeks of swimming exercise causes a significant decrease in the amount of interleukin-6 in the prefrontal cortex of rats with brain trauma (P=0.003), but this decrease was not significant in the hippocampus (P=0.076).
Discussion and Conclusion: The results of the present study showed that swimming exercises before brain trauma can reduce inflammation and memory disorders caused by brain trauma through mechanisms such as reducing the level of pro-inflammatory cytokines such as interleukin-6.

کلیدواژه‌ها English

swimming practice
Memory
Interleukin 6
Hippocampus
Prefrontal Cortex
Brain trauma
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