علامات على الشيخوخة تستدعي مراجعة الطبيب
تبدأ شيخوخة الانسان بعلامات عديدة حددتها رئيسة الجمعية الروسية لطب المسنين، فما هي هذه العلامات التي تستدعي استشارة الطبيب؟
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علامات على الشيخوخة تستدعي مراجعة الطبيب
أفادت أولغا تكاتشيفا، رئيسة الجمعية الروسية لطب المسنين، إنّ المشي غير المتوازن وفقدان الوزن، فضلاً عن اضطرابات الذاكرة والرؤية والسمع، هي علامات على شيخوخة الجسم Aging تستدعي مراجعة الطبيب.
وبحسب تكاتشيفا، فعندما يبدأ الشخص المسن في المشي ببطء أكبر أو، على سبيل المثال، يبدأ في السقوط، ففي هذه الحالة يجب عليه بالضرورة مراجعة أخصائي.
Scientists Reverse Signs of Cellular Aging in Just Four Days Researchers at Harvard Medical School identified six chemical combinations that restored youthful gene-expression patterns in aging human cells in a 2023 study published in Aging. The treatments improved cellular functions associated with aging, including communication between the nucleus and cytoplasm, without changing the cells' original identity. Unlike genetic reprogramming, this approach used chemicals alone. The findings offer a promising direction for regenerative medicine. However, the experiments were conducted in laboratory-grown cells, not humans. More research is needed before this approach can become an anti-aging treatment. Source: Yang, J. H., et al. (2023). Aging, 15(13), 5966–5989.
— SciTech Girl (@scitechgirl) November 6, 2026
كما أشارت الأخصائية إلى أنّ عوامل الخطر الرئيسية للأمراض المزمنة المرتبطة بالعمر معروفة جيداً اليوم، مشددةً على أنّ الفحص الطبي الشامل الدوري والفحص السريري الوقائي يتيحان اكتشاف عوامل الخطر هذه، وتشخيص الأمراض في مرحلة مبكرة، والبدء في الوقت المناسب بالوقاية أو العلاج.
Scientists Have Made 80-Year-Old Cells Look Younger Than 20 in the Lab What if scientists could turn old human cells into much younger ones? Researchers at the University of Bonn in Germany have achieved something remarkable. They converted blood cell precursors from donors as old as 101 into neural stem cells with dramatically younger molecular age markers. Even more fascinating, cells from an 80-year-old donor showed a molecular age of less than 20! The process works by directly reprogramming blood cell precursors into neural stem cells. Over several weeks, the cells gradually lose many of their age-related molecular signatures, effectively resetting their epigenetic clocks. These newly created stem cells can also develop into different types of brain cells, including neurons. The discovery could help researchers understand how cellular aging works and develop better laboratory models for studying diseases such as Alzheimer's. However, there is an important distinction: Scientists have rejuvenated cells in the laboratory, not reversed aging in human beings. This is not yet an anti-aging treatment. Still, the discovery raises an exciting possibility: some biological signs of aging may be more reversible than scientists once thought. Source: Berg, L. J., et al. (2026). Protracted fate acquisition and epigenetic de-aging during induced neural stem cell conversion of human blood cells. Aging Cell, 25(10), e70751.
— Next Science (@NextScience) November 1, 2026
وقالت تكاتشيفا إنّ مراكز طول العمر الصحي التي تُقام في جميع أنحاء روسيا تساعد على اكتشاف مؤشرات الخطر المبكرة، عندما تكون التغيرات غير المواتية قد بدأت بالفعل لكن المرض لم يتطور بعد.
🧬 Scientists Reversed Signs of Cellular Aging in Just 4 Days Using Chemicals! What if aging cells could be made to behave younger without changing their DNA? Scientists at Harvard Medical School have discovered six chemical combinations that may do exactly that. In a fascinating 2023 study, researchers led by David Sinclair found that these chemical cocktails restored youthful gene activity patterns in aging human cells in less than a week. Even more interesting, the treatments improved the way cells organize and separate genetic material inside their nuclei, another feature associated with healthy, younger cells. Previous approaches often relied on introducing special genes to reprogram cells. This new method achieved similar signs of rejuvenation using chemical compounds instead, without erasing the cells' original identity. Some treatments reduced estimated cellular age by several years in just four days! The discovery could eventually open new possibilities for repairing age-related cellular damage and treating diseases associated with aging. However, this is still an early laboratory discovery. It has not been proven to reverse aging in humans or extend human lifespan. Could the future of anti-aging medicine lie in teaching our cells how to become young again? Source: Yang, J. H., et al. (2023). Chemically induced reprogramming to reverse cellular aging.
— Next Science (@NextScience) November 5, 2026
وأضافت أنّ هذا النهج بالتحديد لا يتيح الوقاية من الأمراض فحسب، بل والتأثير أيضاً على مسار الشيخوخة.
يُذكر أنّ طبيب المسنين فاليري نوفوسيلوف، كان قد فسر ثبات مصطلح "كبار السن الشباب" أو "المسنّون الشباب". وبحسب قوله، فإنّ الجيل الأكبر سناً يصبح أكثر نشاطاً ويسعى إلى الظهور بمظهر أصغر سناً.
Signs of aging that warrant a doctor's visit https://t.co/H7R9m1SOCT
— MShariqFaraz (@MShariqFaraz) November 6, 2026