اثر امواج الکترومغناطیسی پیوسته با فرکانس پایین بر غلظت متابولیت سروتونین تولید شده در هسته‌ی رافه‌ی مغز موش‌های صحرایی بالغ

نوع مقاله : مقاله کوتاه

نویسندگان

1 استاد، گروه فیزیک و مهندسی پزشکی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 دانشجوی کارشناسی ارشد، گروه فیزیک و مهندسی پزشکی، دانشکده‌ی پزشکی و کمیته‌ی تحقیقات دانشجویی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

3 استاد، گروه فیریولوژی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

4 استاد، گروه فیزیولوژی و فارماکولوژی، انستیتو پاستور ایران، تهران، ایران

5 استادیار، گروه فیزیک و مهندسی پزشکی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

6 دانشجوی دکتری، گروه شیمی، دانشکده‌ی علوم پایه، دانشگاه لرستان، خرم‌آباد، ایران

7 دانشجوی دکتری، گروه فیزیک و مهندسی پزشکی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

8 دانشجوی دکتری، گروه اپیدمیولوژی، دانشکده‌ی بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران

چکیده

مقدمه: طبق مطالعات متعدد، امواج الکترومغناطیس با فرکانس پایین (ELF یا Extremely low frequency)، بر بیولوژیک بدن تأثیرات گسترده‌ای دارد. این امواج به خاطر ماهیت الکتریکی‌ سیستم عصبی و نوروترانسمیتر‌ها، بر این سیستم آثاری به جای می‌گذارد که در برخی موارد، درمانی و در برخی موارد، مخرب است. هدف از این مطالعه، بررسی تأثیر امواج الکترومغناطیس با فرکانس پایین (ELF)، با فرکانس Hz 10 و شدت µT 720-540، بر سطح متابولیت سروتونین (HIAA-5 یا Hydroxyindoleacetic acid-5) در هسته‌ی رافه‌ی مغز موش‌های نر بالغ بود.روش‌ها: با استفاده از یک کویل مغناطیسی، میدان ELF تولید شد. شدت این میدان در مرکز کویل µT 690 بود. تعداد 6 موش صحرایی، روزانه 3 ساعت و به مدت 15 روز متوالی تحت این امواج قرار گرفتند. پس از آن، از هر موش صحرایی به روش میکرودیالیز، 6 نمونه‌ی µl 40 از هسته‌ی رافه‌ی مغز جمع‌آوری شد. سپس این نمونه‌ها به وسیله‌ی دستگاه کروماتوگرافی با فشار بالا (HPLC-ECD یا High pressure liquid chromatography- electro chemical detector)، سنجش و میزان متابولیت سروتونین آن به دست آمد و با گروه شاهد مقایسه گردید.یافته‌ها: امواج ELF با مشخصات پیش‌گفته، به طور معنی‌داری متابولیت سروتونین در هسته‌ی رافه را نسبت به گروه شاهد کاهش داد (050/0 > P).نتیجه‌گیری: امواج ELF، در سیستم سروتونرژیک تأثیرگذار است و می‌توان در درمان برخی بیماری‌ها از آن استفاده کرد. 

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Extremely Low-Frequency Magnetic Fields on the Level of Serotonin Metabolite in the Raphe Nuclei of Adult Male Rat

نویسندگان [English]

  • Daryoush Shahbazi 1
  • Leila Shiri 2
  • Hojatollah Alaei 3
  • Naser Naghdi 4
  • Saeid Kermani 5
  • Hossein Afrouzi 6
  • Ali Kiani 7
  • Mojtaba Akbari 8
1 Professor, Department of Biomedical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 MSc Student, Department of Biomedical Engineering, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
3 Professor, Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
4 Professor, Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
5 Assistant Professor, Department of Biomedical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
6 PhD Student, Department of Chemistry, School of Basic Sciences, Lorestan University, Khorramabad, Iran
7 PhD Student, Department of Biomedical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
8 PhD Student, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
چکیده [English]

Background: According to several studies, the extremely low-frequency magnetic fields (ELF fields) affect extensively on biological system. These fields can influence the nervous and neurotransmitter system due to the electrical nature of them. The influences in some cases are therapeutic and sometimes are destructive. The purpose of this study was to investigate the effect of extremely low-frequency magnetic fields, with frequency of 10 Hz and intensity of 720 to 540 microtesla, on the level of serotonin metabolite, 5-Hydroxyindoleacetic Acid (5-HIAA), in the raphe nuclei of adult male rat.Methods: Using a magnetic coil, the extremely low-frequency magnetic field, with 690 microtesla strength at the center of the coil, was produced. 6 rats were under this field 3 hours daily for 15 consecutive days. Then, 6 samples were collected from the raphe nucleus of each rat using microdialysis technique. Each sample was 40 microliters in volume. Then, the serotonin metabolite levels in each sample were measured via high-pressure liquid chromatography and compared with its control sample.Findings: Extremely low-frequency magnetic field with mentioned characteristics significantly decreased the level of serotonin metabolite in the raphe nucleus compared to the control group (P < 0.05).Conclusion: It can be concluded that extremely low-frequency magnetic fields affect the serotonergic system and can be used to treat some diseases.

کلیدواژه‌ها [English]

  • Electromagnetic fields
  • Hydroxyindoleacetic acid
  • Microdialysis
  • High-pressure liquid chromatography
  • Raphe nuclei
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