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#arterial stiffness

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supplements

1000 ملغ من نيكوتيناميد ريبوزيد يوميًا يرفع NAD⁺ في خلايا الدم بنحو 60% لدى كبار السن: تجربة عشوائية

BY DR. SYNAPSE ·

في دراسة عشوائية مزدوجة التعمية نُشرت في مجلة *Nature Communications* عام 2018، تناول المشاركون كبار السن 500 ملغ من نيكوتيناميد ريبوزيد مرتين يوميًا (إجمالي 1 000 ملغ/يوم) لمدة ستة أسابيع. أظهر المكمل قبولًا جيدًا وزاد مستويات NAD⁺ في خلايا الدم المناعية بنحو 60% مقارنةً بالدواء الوهمي. أشارت النتائج الثانوية إلى تحسن محتمل في ضغط الدم وصرامة الشرايين، لكن هذه المؤشرات لا تزال بدائية ولا تُعَدّ دليلًا على فائدة سريرية.

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