ATSIDOZDA NEYTROFIL “OKSIDATIV BURST”I: NADPH-OKSIDAZA FAOLLIGI VA ROS DINAMIKASI

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Tilyabov Ikrom Akrom o`g`li
Xalilov Hikmatulla Dilshodovich

Abstract

Neytrofil granulotsitlar organizmning tug‘ma immun tizimining asosiy hujayralari hisoblanib, ular patogen mikroorganizmlarni tanib olish, fagotsitoz qilish va yo‘q qilish orqali organizmni himoya qilishda muhim rol o‘ynaydi. Ushbu hujayralarning bakteritsid potensialining markaziy mexanizmlaridan biri bu "oksidativ portlash" (respirator portlash) jarayoni bo‘lib, u NADPH-oksidaza (NOX2) ferment kompleksining tez faollashuvi natijasida yuzaga keladi. Ushbu ferment kislorodni bir elektron bilan qaytarib, superoksid anion (O₂⁻) radikalini hosil qiladi, bu esa hujayra ichida va tashqarisida kuchli antimikrobiyal xususiyatlarga ega bo‘lgan birlamchi va ikkilamchi reaktiv kislorod turlarining (ROS) kaskadini boshlab beradi [1]. So‘nggi o‘n yillikda (2015-2025) olib borilgan ilg‘or tadqiqotlar nafaqat NOX2 kompleksining molekulyar tuzilishi va faollashuvining nozik mexanizmlarini, balki ROS dinamikasining vaqt va fazoviy jihatlarini, uning metabolik asoslarini va hujayra signalizatsiyasidagi qo‘shimcha funksiyalarini ham chuqur ochib berdi. Xususan, oksidativ portlashning energetik ta'minoti glikolizdan pentoza fosfat sikliga (pentose cycle) o‘tish orqali amalga oshirilishi, bu jarayonda glyukozaning to‘liq oksidativ pentoza fosfat yo‘liga yo‘naltirilib,

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ATSIDOZDA NEYTROFIL “OKSIDATIV BURST”I: NADPH-OKSIDAZA FAOLLIGI VA ROS DINAMIKASI. (2026). International Bulletin of Medical Sciences and Clinical Research, 6(2), 121-132. https://doi.org/10.37547/

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