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Tag: cognitive issues

Researchers discover that COVID-19 can cause brain cells to fuse

Researchers at The University of Queensland have discovered that SARS-CoV-2 and other viruses can cause brain cells to fuse, initiating malfunctions that lead to chronic neurological symptoms.

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Could fused neurons explain COVID-19’s ‘brain fog’?

Researchers have demonstrated that a SARS-CoV-2 infection can induce brain cells to fuse together, with severe impacts on the functioning of neurons. Neurons may fuse together with other neurons or glia, and larger multicellular syncytia may be formed. The fusion of neurons may be one of the causes of the cognitive issues associated with COVID-19.

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CAMH study confirms ongoing brain inflammation associated with long COVID

A new Centre for Addiction and Mental Health (CAMH) study found elevated levels of inflammation in the brains of patients who report persistent symptoms of long COVID.

Using advanced brain scanning with positron emission tomography (PET), the researchers found elevated levels of the protein TSPO, a brain marker of inflammation, in patients with onset of depression within several months after a COVID-19 infection.

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Rapid Progression of Dementia Following COVID-19

In a new study, researchers examined the cognitive impacts of COVID-19 on people with dementia. They found that having COVID-19 rapidly accelerated the structural and functional brain deterioration of patients with dementia, regardless of the type of dementia being experienced.

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Covid infection could speed up progression of dementia, new study finds

A new study, published in the Journal of Alzheimer’s Disease Reports, has discovered that infection with SARS-CoV-2 (the virus that causes Covid) has a significant impact on cognitive function in patients with pre-existing dementia.

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Over 10% of children in Japan with COVID-related brain disease died, survey finds

More than 10% of children in Japan who developed acute brain syndrome after infection with COVID-19 have died, results of a nationwide survey recently announced by a health ministry research team has shown.

The survey identified 34 cases of acute encephalopathy associated with COVID-19 infection among those under 18 between January 2020 and May 2022. The team analyzed 31 patients who did not have any underlying illnesses that could be responsible for causing the brain disease.

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Beyond the pandemic: Long COVID emerges as a silent crisis

[I]t appears that, regardless of gender and other demographic factors, COVID-19 infection at baseline is correlated with increased problems with emotion regulation six months later: depression, anxiety and agitation.

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La COVID longue, un mal invisible (mais bien présent)

The majority of people experience extreme fatigue and many suffer post-stress discomfort, a kind of energy crash. Brain fog, lack of concentration and memory loss are also common symptoms.

Some people develop conditions and syndromes such as postural orthostatic tachycardia syndrome (POTS), characterized by dizziness and palpitations when a person is in a upright position. Others develop dysautonomia, which causes palpitations, pressure rises or falls, dizziness and gastric problems.

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Long COVID: 3 years in

March 11 marks 3 years since WHO declared COVID-19 to be a pandemic. While the world is determined to move on from the acute phase, at least 65 million people are estimated to struggle with long COVID, a debilitating post-infection multisystem condition with common symptoms of fatigue, shortness of breath, and cognitive dysfunction, impairing their ability to perform daily activities for several months or years. Although the majority of patients infected with SARS-CoV-2 recover within a few weeks, long COVID is estimated to occur in 10–20% of cases and affects people of all ages, including children, with most cases occurring in patients with mild acute illness. The consequence is widespread global harm to people’s health, wellbeing, and livelihoods—an estimated one in ten people who develop long COVID stop working, resulting in extensive economic losses.

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Long COVID linked to lower brain oxygen levels, cognitive problems and psychiatric symptoms

We are the first to show reduced oxygen uptake in the brain during a cognitive task in the months following a symptomatic COVID-19 infection. This is important because a lack of sufficient oxygen supply is thought to be one of the mechanisms by which COVID-19 may cause cognitive impairment.

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Κορωνοϊός: Οι περισσότεροι ασθενείς με long Covid εμφανίζουν βλάβες οργάνων ένα χρόνο μετά

More than half of patients with long Covid suffer from organ damage a year after the initial symptoms, new research suggests.

Even those who were not seriously ill when diagnosed with the virus report problems, with extreme difficulty breathing and cognitive impairment among the persistent symptoms.

The study, the results of which were published in the Journal of the Royal Society of Medicine, involved 536 people.

Six months after their initial diagnosis with coronavirus, the patients underwent an MRI scan which revealed ongoing health problems, with 62% of participants suffering from organ damage.

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Long COVID stemmed from mild cases of COVID-19 in most people

Even mild COVID-19 cases can have major and long-lasting effects on people’s health. That is one of the key findings from our recent multicountry study on long COVID-19—or long COVID—recently published in the Journal of the American Medical Association.

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Ten COVID Facts Health Officials Dangerously Downplay

Do not listen to powers that be who pretend that getting infected with COVID multiple times is now no big deal. They’re asking you to lower your guard for a nasty virus that can invade the brain, disregulate the immune system and damage the vascular system.

This strategy has led to predictable results — more direct deaths, more excess deaths, more disease and some 1.4 million Canadians reporting some form of long COVID over the last two years.

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How long COVID ruined my life, from crushing fatigue to brain fog

The change struck like a bolt of lightning from a clear blue sky. I’d been under the weather for a couple of weeks – nothing major, just a persistent cough, but for some reason I couldn’t seem to shift it. I took a day off work and carried on. Until 19 March, when I woke up and everything was different.

I was tired – overwhelmingly, crushingly tired, as if I’d been up for days, when in fact I’d slept all night – and I couldn’t think straight. When I tried to text my boss to tell him I wasn’t going to be able to make it into work, it took me more than an hour to string a sentence together.

Eventually, I got out a short apologetic message. Then I went back to bed, where I stayed for three days straight. It should have been scary, but I was too tired to be scared. The need for rest overwhelmed every thought or feeling.

—Rowland Manthorpe
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El camino largo: Cuando los síntomas de la COVID-19 no desaparecen.

Although most people who have COVID-19 recover within a few weeks, some struggle with heart symptoms and problems such as brain fog, fatigue, headaches, dizziness, and difficulty breathing, even months after the initial infection goes away.

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COVID-19 positive patients at higher risk of developing neurodegenerative disorders, new study shows

COVID-19 positive outpatients are at an increased risk of neurodegenerative disorders compared with individuals who tested negative for the virus, a new study presented today at the 8th European Academy of Neurology (EAN) Congress has shown.

The study, which analysed the health records of over half of the Danish population, found that those who had tested positive for COVID-19 were at an increased risk of Alzheimer’s disease, Parkinson’s disease, and ischaemic stroke.

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