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Egyptian FM holds calls with Iranian counterpart , U.S. Envoy on regional developmentsZverev into French Open last-fourIsraeli fire kills four people in Gaza, medics sayEgypt, Singapore discuss expanding cooperation in tourism, antiquitiesAncelotti eases Neymar W. Cup fearsArab, Islamic states condemn Israeli actions at Al-AqsaSyria Hopes for Terrorism Delisting to Spur Economic RecoveryBenfica linked with Fulham’s SilvaVan der Breggen takes Giro leadKremlin: Saudi Arabia Named Guest of Honor at St. Petersburg Economic ForumTrump administration proposes 25% tariff to punish Brazil over trade practicesرياضة محلية‘Really cool to share this journey with her’: Michelle Wie West playing for her family at U.S. Women’s OpenArchaeological Replicas Showcase Saudi Arabia’s Rich History at Kuala Lumpur Int’l Book FairRenewable Energy Helps Red Sea Global Avoid 118,000 Tons of Carbon EmissionsLetter: Carol Rumens obituaryEngland v India: third and deciding women’s T20 cricket international – liveHealthVolunteers serve comfort food in a worrying Ebola outbreak – Sault Michigan NewsEconomyTrump signs AI executive order asking companies to give government early access to modelsLocalSouth West Water fined nearly £2million after supplying homes with parasite-ridden water that left four people in hospital – and telling people it was safe to drinkScience & TechYour car is following you – how to reclaim your data privacy on the open roadEgyptian FM holds calls with Iranian counterpart , U.S. Envoy on regional developmentsZverev into French Open last-fourIsraeli fire kills four people in Gaza, medics sayEgypt, Singapore discuss expanding cooperation in tourism, antiquitiesAncelotti eases Neymar W. Cup fearsArab, Islamic states condemn Israeli actions at Al-AqsaSyria Hopes for Terrorism Delisting to Spur Economic RecoveryBenfica linked with Fulham’s SilvaVan der Breggen takes Giro leadKremlin: Saudi Arabia Named Guest of Honor at St. Petersburg Economic ForumTrump administration proposes 25% tariff to punish Brazil over trade practicesرياضة محلية‘Really cool to share this journey with her’: Michelle Wie West playing for her family at U.S. Women’s OpenArchaeological Replicas Showcase Saudi Arabia’s Rich History at Kuala Lumpur Int’l Book FairRenewable Energy Helps Red Sea Global Avoid 118,000 Tons of Carbon EmissionsLetter: Carol Rumens obituaryEngland v India: third and deciding women’s T20 cricket international – liveHealthVolunteers serve comfort food in a worrying Ebola outbreak – Sault Michigan NewsEconomyTrump signs AI executive order asking companies to give government early access to modelsLocalSouth West Water fined nearly £2million after supplying homes with parasite-ridden water that left four people in hospital – and telling people it was safe to drinkScience & TechYour car is following you – how to reclaim your data privacy on the open road

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US dollar56.27EGPEuro62.95EGPBritish pound75.10EGPSaudi riyal15.01EGPUAE dirham15.32EGPKuwaiti dinar181.23EGPJordanian dinar79.37EGPQatari riyal15.46EGPTurkish lira1.13EGPChinese yuan8.42EGPGold 247,333.26EGP/gGold 216,416.60EGP/gGold 185,499.94EGP/gSilver98.68EGP/g

Health

من أين تأتي أمراض المناعة الذاتية؟

By الشرق الأوسط · 2 hours ago · 1 min read الشرق الأوسط ↗

من أين تأتي أمراض المناعة الذاتية؟

ما يعرفه ريفو عن الخبر

قد تنشأ أمراض المناعة الذاتية من طفرات جينية كانت مفيدة قديماً في مواجهة العدوى ولكنها أصبحت عوامل خطر حالياً.
تُعرف هذه الظاهرة بـ تعدد التأثير المتضاد حيث يتحول الجين من مفيد في سياق معين إلى ضار في سياق آخر.
أظهرت الدراسات أن طفرات جينية انتشرت قبل 5000 عام وفرت حماية ضد الفيروسات والبكتيريا لكنها تزيد خطر الإصابة بالتصلب المتعدد اليوم.

تشمل أكثر من 100 نوع وتصيب ما بين 5 في المائة و10 في المائة من سكان الدول الصناعية.

المصدر: الشرق الأوسط

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