بررسی بیهوشی‌های مکرر با داروی سئوفلوران در دوران نوجوانی و اثرات آنها بر اختلالات رفتاری و پاتولوژیک در موش‌های صحرایی بالغ‌شده نر و ماده نژاد ویستار

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مرکز تحقیقات الکتروفیزیولوژی، پژوهشکده علوم اعصاب، دانشگاه علوم پزشکی تهران، تهران، ایران

2 مرکز تحقیقات ضایعات مغزی نخاعی، پژوهشکده علوم اعصاب، دانشگاه علوم پزشکی تهران، تهران، ایران

3 گروه بیهوشی، مجتمع بیمارستانی امام خمینی (ره)، دانشگاه علوم پزشکی تهران، تهران، ایران

چکیده

مقدمه و هدف: بیهوشی‌های مکرر در کودکان و نوجوانان در برخی از مداخلات درمانی مانند رادیوتراپی یا سوختگی‌ها ضرورت پیدا می‌کند. تحقیقات نشان داده که بیهوشی عمومی در دوران نوجوانی می‌تواند باعث مرگ سلولی، مشکلات شناختی و بعداً مشکلات عصبی رفتاری در بزرگسالی شود. مطالعه حاضر با هدف ارائه ارزیابی دقیق مورفولوژیکی و عملکردی اثرات طولانی‌مدت مواجهه مکرر با سووفلوران انجام شد.
مواد و روش ها: 28 موش صحرایی نوجوان از روز 24 پس از تولد به‌صورت تصادفی از مادرهای مختلف جدا شده و به چهار گروه نر و ماده کنترل و استنشاقی سئوفلوران (غلظت درصد روزانه به مدت 15 روز) تقسیم شدند. حیوانات بعد از آخرین بیهوشی در روز 38 به مدت 30 تا 35 روز تحت مراقبت و جهت انجام آزمایش‌های رفتاری شامل آزمون‌های ماز آبی موریس، زمینه باز، مربع مرتفع آماده و سپس تغییرات پاتولوژیک با استفاده از رنگ‌آمیزی تولئیدین بلو بررسی و نتایج با از استفاده آزمون‌های آماری t تست غیرزوجی و واریانس‌های یک‌طرفه و دوطرفه آنالیز شد.
نتایج: نتایج مطالعه حاضر نشان داد که در حیوانات نر و ماده، قرارگرفتن مکرر در معرض سووفلوران در دوران نوجوانی می‌تواند باعث اختلال در حافظه فضایی و افزایش اضطراب در بزرگسالی شود. همچنین در حیوانات دریافت‌کننده سووفلوران در مقایسه با گروه کنترل نورون‌های تیره و مرگ سلولی در نواحی هیپوکامپ و کورتکس در حیوانات نر و ماده می‌تواند افزایش یابد.
نتیجه‌گیری: این نتایج ممکن است دیدگاه جدیدی برای درک مکانیسم تکرار قرارگرفتن در معرض اثرات سمی ناشی از سووفلوران در نوجوانی ارائه دهد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigating repeated exposure to sevoflurane during adolescence and their effects on behavioral and pathological impairment in adult male and female Wistar rats

نویسندگان [English]

  • Mahdieh Nasiri 1
  • Javad Fahanik Babaei 1
  • Maryam Jafarian 2
  • Seyed Khalil Pestehei 3
1 Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
2 Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
3 Imam Khomeini Hospital Complex, Department of Anesthesiology, Tehran University of Medical Sciences, Tehran, Iran
چکیده [English]

Background and Objective: Repeated anesthesia in adolescence is necessary for some therapeutic interventions, such as radiotherapy or burns. Research has indicated that exposure to general anesthetics during the adolescent period can induce cell death, cognitive and behavioral problems, and later neurobehavioral problems in adulthood. The current study was aimed at providing a detailed morphological and functional evaluation of the long-term impacts of repeated exposure to sevoflurane.
Materials and Methods: In this study, 28 adolescent rats were randomly divided into male and female control groups and inhaled sevoflurane (at a concentration of 2%) daily for 15 days. After last anesthesia, animals of all groups were cared for 30-35 days, and then the effects of repeated exposure to sevoflurane on cognitive functions and anxiety behavior were tested by the Morris water maze, open field, and elevated plus maze. Effects of sevoflurane on cell death and the increase of dark neurons were compared in CA1 of the hippocampus and brain cortex. Data were evaluated using one-way and two-way ANOVA.
Results: Our results indicated that repeated exposures to sevoflurane during adolescence can cause behavioral problems later in adulthood. We found a significant increase in dark neurons and cell death in the sevoflurane group compared to the control group in both male and female animals.
Conclusion: These results may provide a new perspective for understanding the mechanism of repeated exposure to sevoflurane-induced toxic effects in adolescence.

کلیدواژه‌ها [English]

  • Repeated anesthesia
  • Sevoflurane
  • Morris water maze
  • Open field
  • Elevated plus maze
  • Toluidine blue
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