یکشنبه 24 اردیبهشت 1396 :: نویسنده : نویسنده وبلاگ
فقدان ویتامین A در بدن , در صورت فقدان این ماده، سلول های بنیادی فعال قادر به بازگشت به حالت خفته نخواهند بود و در عوض در سلول های خونی خاص رشد کرده و بالغ می شوند و این به معنای از بین رفتن ذخایر آنهاست.
فقدان ویتامین A در بدن
فقدان ویتامین A در بدن , طبق اعلام محققان، فقدان ویتامین A بدن تاثیر زیانباری بر سیستم خونسازی در مغز استخوان دارد و کمبود آن
بسیاری از سلول های مشخص شده نظیر سلول های موجود در پوست، روده یا خون، طول عمری فقط برای مدت چند روز دارند.
به علاوه گروهی از سلول های بنیادی بسیار خاص هم در مغز استخوان وجود دارند که اکثر مواقع در حالت نهان و خفته هستند و فقط در مواقع ضروری نظیر
فقدان ویتامین A در بدن
زمانیکه کارشان را انجام دادند، بدن اکثر سلولهای بنیادی قوی را به حالت خفته باز میگرداند.
تاکنون مکانیسم فعال سازی این سلول های بنیادی خاص یا برگرداندن آنها به حالت خواب نامعلوم بود.
محققان دریافته اند در صورت فقدان این ماده، سلول های بنیادی فعال قادر به بازگشت به حالت خفته نخواهند بود و در عوض
نینا کبزس والشید، سرپرست تیم تحقیق، در این باره می گوید:
به گفته محققان، این مطالعه نتایج مطالعات قبلی نیز در مورد اینکه کمبود ویتامین A به سیستم ایمنی بدن آسیب می رساند را نیز اثبات می کند.
مطلب فقدان ویتامین A در بدن چه عوارضی برای سلامت انسان دارد؟! در سایت مفیدستان
لینک منبع و پست :فقدان ویتامین A در بدن چه عوارضی برای سلامت انسان دارد؟!
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