ملخص المقالة :
بیماری آلزایمر یک اختلال تخریبی نورونی است که باعث مرگ نورون و از دست دادن حافظه می شود و موجب تولید رادیکال های آزاد و فاکتورهای التهابی بروز می کند. مطالعات نشان می دهد بورنیل استات به عنوان یک مونوترپن دارای اثرات آنتی اکسیدانی و ضد التهابی می باشد. بنابراین در این مطالعه اثرات بورنیل استات با دوزهای20 و 50 میلی گرم/کیلوگرم در موش آلزایمری شده نر نژاد ویستار مورد بررسی قرار گرفت . برای ایجاد مدل آلزایمری از تزریق دو طرفه Aβ1-42 درون هیپوکامپ رتهای نر استفاده شد. در این مطالعه آنزیم های بیوشیمیایی SOD و MDA، تست رفتاری شاتل باکس، بررسی های هیستولوژیکی و رنگ آمیزی هماتوکسیلین و ائوزین و تیوفیلاوین S جهت بررسی نوروژنز و پلاک های آمیلوئیدی و اثرات استرس بی حرکتی کوتاه مدت بر موشهای آلزایمری و همچنین اثرات ترکیب ذکر شده در محیط in vitro نیز مورد بررسی قرار گرفت. فاکتورهای بیوشیمیایی، تصاویر بافت شناسی و آزمون رفتاری گروه آلزایمری در مقایسه با گروه های کنترل به طور معناداری متفاوت بود . به طوریکه شاخص های یادگیری و حافظه در گروه آلزایمری شده در مقایسه با گروه کنترل کاهش معنا داری نشان داد. همچنین دریافت ترکیب بورنیل استات باعث افزایش معنادار نوروژنز و کاهش معنادار تراکم پلاک ها و همچنین تغییرات شاخص های بیوشیمیایی و آزمون رفتاری شد. علاوه بر این، دریافت ترکیب بورنیل استات توام با استرس بی حرکتی باعث افزایش سرعت یاد گیری و بهبود حافظه نسبت به گروه آلزایمری شد. قابل ذکر است که ترکیب فوق در محیط in vitro باعث کاهش فیبریل های آمیلوئیدی شد. با توجه به نتایج به دست آمده در این مطالعه و گزارشهای قبلی مبنی بر اثرات ضد التهابی و آنتی اکسیدان بورنیل استات به نظر میرسد این ترکیب میتوانند اختلالات و عارضههای ایجاد شده در حافظه را بهبود ببخشند.
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