دراسة لا تجد دليلاً على وجود التهاب دماغي واسع النطاق لدى مصابي كوفيد طويل الأمد

28 مايو، 2026

من إعداد الذكاء الاصطناعي

لم يجد باحثون في فنلندا أي دليل على وجود التهاب دماغي واسع النطاق لدى الأشخاص الذين يعانون من كوفيد طويل الأمد. وبدلاً من ذلك، تربط النتائج الأعراض الأكثر حدة بزيادة النشاط في مناطق الدماغ المسؤولة عن العاطفة والذاكرة.

فحص فريق في جامعة توركو 14 شخصاً مصاباً بكوفيد طويل الأمد باستخدام التصوير المقطعي بالإصدار البوزيتروني (PET) والتصوير بالرنين المغناطيسي (MRI). وقارنوا النتائج بمسوحات أجريت لـ 11 متطوعاً يتمتعون بصحة جيدة و13 مريضاً بالتصلب المتعدد. لم تظهر أي اختلافات جوهرية في مؤشرات التهاب الدماغ بين مجموعة كوفيد طويل الأمد ومجموعة الأصحاء. كما أظهر مرضى كوفيد طويل الأمد التهاباً أقل بكثير في المادة البيضاء مقارنة بمجموعة التصلب المتعدد.

Study links a distinct CD14+ monocyte state to fatigue and breathing symptoms in long COVID

26 مارس، 2026 من إعداد الذكاء الاصطناعي صورة مولدة بواسطة الذكاء الاصطناعي تم التحقق من الحقائق

Researchers analyzing immune cells from people with long COVID have identified a distinct molecular state in CD14+ monocytes—labeled “LC-Mo”—that was more prevalent among patients whose initial COVID-19 illness was mild to moderate and that tracked with reported fatigue and respiratory symptoms, along with higher levels of inflammatory signaling molecules in blood plasma.

Severe COVID or flu may raise lung cancer risk years later

New research indicates that severe cases of COVID-19 or influenza can alter lung immune cells, potentially increasing cancer risk months or years afterward. The study, conducted by scientists at the University of Virginia, highlights the role of chronic inflammation in this process and emphasizes vaccination as a preventive measure. Findings suggest closer monitoring for affected patients to enable early detection.

UCSF study explains severe flu and COVID in older adults

3 أبريل، 2026 من إعداد الذكاء الاصطناعي

Researchers at the University of California, San Francisco have identified how aging lungs contribute to severe flu and COVID-19 outcomes in older adults. Their study shows that lung fibroblasts trigger excessive inflammation, forming damaging clusters of immune cells. The findings, published in Immunity on March 27, suggest potential new treatments.

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Study links major depression in young adults to altered cellular energy patterns in brain and blood

صحة

Large VIVID trial finds high-dose vitamin D3 did not lessen acute COVID-19 severity, but adherence analysis suggests possible long COVID signal

صحة

Stroke prompts rejuvenation-like changes in undamaged brain areas

USC researchers identify compounds targeting Alzheimer’s brain inflammation

Scientists at the University of Southern California have found experimental compounds that may reduce harmful brain inflammation associated with Alzheimer’s disease. The work focuses on the enzyme cPLA2 and people who carry the high-risk APOE4 gene.

Study links monocyte “biological aging” in blood to emotional depression symptoms in women with and without HIV

4 مايو، 2026 من إعداد الذكاء الاصطناعي تم التحقق من الحقائق

A study of 440 participants from the Women’s Interagency HIV Study found that accelerated epigenetic aging in monocytes—an immune cell type—tracked more closely with emotional and cognitive depression symptoms such as hopelessness and loss of pleasure than with physical symptoms like fatigue. The work, published in The Journals of Gerontology: Series A, adds evidence that cell-type-specific aging measures could contribute to future biological tools to complement symptom-based depression screening, though researchers say more validation is needed before clinical use.

09 يونيو 2026 02:14

دراسة لا تجد دليلاً على وجود التهاب دماغي واسع النطاق لدى مصابي كوفيد طويل الأمد

مقالات ذات صلة

Study links a distinct CD14+ monocyte state to fatigue and breathing symptoms in long COVID

Severe COVID or flu may raise lung cancer risk years later

UCSF study explains severe flu and COVID in older adults

Study links major depression in young adults to altered cellular energy patterns in brain and blood

Large VIVID trial finds high-dose vitamin D3 did not lessen acute COVID-19 severity, but adherence analysis suggests possible long COVID signal

Stroke prompts rejuvenation-like changes in undamaged brain areas

USC researchers identify compounds targeting Alzheimer’s brain inflammation

Study links monocyte “biological aging” in blood to emotional depression symptoms in women with and without HIV

Home-based exercise program may ease “chemo brain” symptoms during chemotherapy, Phase II trial suggests

Texas A&M nasal spray reverses brain aging in study

Cochrane review questions benefits of anti-amyloid Alzheimer’s drugs

Personalized treatment plans improve early dementia symptoms

Fluvoxamine eases severe fatigue in long COVID patients

Severe infections raise dementia risk in large Finnish study

Study links blood-brain barrier damage to CTE in athletes

Pre-pandemic ill health common among those with postcovid

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