Alzheimer’s disease-like changes in COVID-19
"The impact I am seeing on my clients post-COVID is something I hadn’t seen previously in the years I have worked in this field. The cognitive decline post-COVID infection is immense, thus confirming the impact this virus has on the brain..."
"The impact I am seeing on my clients post-COVID is something I hadn’t seen previously in the years I have worked in this field. The cognitive decline post-COVID infection is immense, thus confirming the impact this virus has on the brain..."
Neurological syndromes associated with COVID-19: a multicenter study in Brazil - BMC Infectious Diseases
“197 patients were included, presenting with vascular syndromes (81), encephalopathy (68), encephalitis (19), Guillain-Barré syndrome (13), other neuropathies (12), and myelitis (4). The incidence curve of neurocovid mirrored that of COVID-19. Neurological syndromes were present regardless of COVID-19 severity. The median time from COVID-19 to onset of neurological symptoms was 14 days, suggesting a post-infectious immune-mediated mechanism.”
Clinical and radiological characteristics and 1-year self-reported outcomes from patients with encephalitis and coronavirus disease 2019 - Journal of Medical Case Reports
The Impact of the COVID-19 Pandemic on Dementia Risk: Potential Pathways to Cognitive Decline
“The Impact of the COVID-19 Pandemic on Dementia Risk: Potential Pathways to Cognitive Decline”
Long Covid ‘changes brains of people differently to those who recover from virus’
“Long Covid ‘changes brains of people differently to those who recover from virus’
More than two million people in the UK are thought to be suffering from long Covid”
As many as 10-25% of people who get Covid will get Long Covid.
Long Covid ‘changes brains of people differently to those who recover from virus’More than two million people in the UK are thought to be suffering from long Covid
COVID-19 will never be like the Flu. Never.
“I have spent hundreds of hours in the microscope looking at the worst viruses can do to the brain, including the Zika virus, HIV, Flu, and others. I've never seen the type of damage SARS-CoV-2 leaves behind after infection with other viruses. “
Long COVID Breakthrough: Spike Proteins Persist in Brain for Years
“A study reveals that the spike protein of SARS-CoV-2 remains in the brain long after infection, causing potential neurological issues and accelerated brain aging. mRNA vaccines help lower this risk but are not completely effective in eliminating the protein.”
A study reveals that the spike protein of SARS-CoV-2 remains in the brain long after infection, causing potential neurological issues and accelerated brain aging. mRNA vaccines help lower this risk but are not completely effective in eliminating the protein.
Clinic evaluation of cognitive impairment in post-COVID syndrome: Performance on legacy pen-and-paper and new digital cognitive tests
“Post-Covid cognitive impairment affects daily function and quality of life. • ACE-III fails to detect cognitive impairment in most post-Covid patients. • 89% of patients have impaired attention, executive function, processing speed on novel tests. • New tests are needed for post-Covid cognitive assessment in clinical practice.”
Post-Covid cognitive impairment affects daily function and quality of life.•ACE-III fails to detect cognitive impairment in most post-Covid patients.•89% of patients have impaired attention, executive function, processing speed on novel tests.•New tests are needed for post-Covid cognitive assessment in clinical practice.
What We Know About Covid’s Impact on Your Brain?
Brain shrinkage is observed even in mild or asymptomatic cases of Covid and impacts cognition.
COVID-19 may Enduringly Impact cognitive performance and brain haemodynamics in undergraduate students
“COVID-19 may Enduringly Impact cognitive performance and brain haemodynamics in undergraduate students”
“37 % of the undergraduates exhibited impaired cognition up to 17 months post-infection.”
COVID & the BRAIN… a thread 🧵
Hamsters with long Covid exhibits a neurodegenerative signature in the brainstem
“Using the golden hamster as a model, we provide further evidence that SARS-CoV-2 is neuroinvasive and can persist in the central nervous system, as we found viral RNA and replicative virus in the brainstem after 80 days of infection.”
Association between COVID-19 infection and new-onset dementia in older adults: a systematic review and meta-analysis - BMC Geriatrics
Older adults recovering from COVID-19 face a 58% higher risk of developing dementia compared to those uninfected, with rates peaking 12 months post-infection.
Study reviewed 11 studies, 940k cases, 6.8M controls.
Long COVID: SARS-CoV-2 spike protein accumulation linked to long-lasting brain effects
“The study shows that the SARS-CoV-2 spike protein remains in the brain's protective layers, the meninges, and the skull's bone marrow for up to four years after infection. This persistent presence of the spike protein could trigger chronic inflammation in affected individuals and increase the risk of neurodegenerative diseases.”
The study shows that the SARS-CoV-2 spike protein remains in the brain's protective layers, the meninges, and the skull's bone marrow for up to four years after infection. This persistent presence of the spike protein could trigger chronic inflammation in affected individuals and increase the risk of neurodegenerative diseases.
Video showing accumulation of spike protein (red) in skull bone marrow from a patient who died from Covid
Video showing accumulation of spike protein (red) in skull bone marrow from a patient who died from Covid
Persistence of spike protein at the skull-meninges-brain axis may contribute to the neurological sequelae of COVID-19
Evidence that a COVID-19 infection can induce neurological sequelae.
The SARSCoV2 spike protein can persist in the brain—skull bone marrow and meninges—to induce neurologic damage
SARS-CoV-2 spike protein accumulates & persists in the body for years after infection, especially in the skull-meninges-brain axis, potentially driving long COVID. mRNA vaccines help but cannot stop it.
In mice, it caused inflammation, anxiety, and worsened brain injuries. Vaccines reduced but did not fully eliminate it.
Cognitive deficits after COVID-19 associated with brain injury biomarkers and volume loss
“Cognitive deficits after COVID-19 associated with brain injury biomarkers and volume loss”
Honestly it kinda pisses me off how some people act like we can't talk about the brain damage from Covid, especially on the population level.
“Honestly it kinda pisses me off how some people act like we can't talk about the brain damage from Covid, especially on the population level. Yes, it's important to consider the ableism. But I have brain damage from Covid, including to my emotions, and we need to talk about it...”
Cross-Section of Neurological Manifestations Among SARS-CoV-2 Omicron Subvariants—Single-Center Study
“The Omicron variant of SARS-CoV-2 presents a wide spectrum of neurological manifestations."
"Although there is an improvement in the survival rate of patients with COVID-19, the frequency of neurological manifestations increases."
"The occurrence of delirium, cerebrovascular diseases, and ischemic stroke results in higher mortality."
Part 2 of 2
Part 1 of 2
Why people can no longer drive.
Cognition and Memory after Covid-19 in a Large Community Sample | NEJM
Cognition and Memory after Covid-19 in a Large Community Sample
Cognition and Memory after Covid-19 in a Large Community Sample
We Just Got More Evidence That Long COVID Is a Brain Injury
“Signs of brain inflammation were present up to 18 months after first contracting the SARS-CoV-2 virus.
‘We show that the brainstem is a site of vulnerability to long-term effects of COVID-19, with persistent changes evident in the months after hospitalization,’ the authors of the study conclude.”
Signs of brain inflammation were present up to 18 months after first contracting the SARS-CoV-2 virus.
if ('undefined' !== typeof window.tmntag && 'undefined' !== typeof window.tmntag.cmd) {
tmntag.cmd.push(function () {
tmntag.adTag('Purch_Y_C_0_2', false);
});
}
"We show that the brainstem is a site of vulnerability to long-term effects of COVID-19, with persistent changes evident in the months after hospitalization," the authors of the study conclude.
A case-control study of reaction time deficits in a 3D virtual reality in patients with Post-COVID syndrome
“A case-control study of reaction time deficits in a 3D virtual reality in patients with Post-COVID syndrome”
A case-control study of reaction time deficits in a 3D virtual reality in patients with Post-COVID syndrome
From COVID to Cognition | Kentucky researchers find COVID-19 could lead to Alzheimer's
“From COVID to Cognition | Kentucky researchers find COVID-19 could lead to Alzheimer's”
From COVID to Cognition | Kentucky researchers find COVID-19 could lead to Alzheimer's
Limbic system damage following SARS-CoV2 infection | Brain Communications | Oxford Academic
Limbic system damage from Covid:
SARS-CoV-2 is a neurotropic virus that may cause long-term neurological symptoms by damaging the limbic system.
This research shows that COVID-19 can impair emotion recognition, memory, and olfactory abilities, with altered brain connectivity patterns.
The buddy from college I talk about every now and again.
“The buddy from college I talk about every now and again.
He’s prolly 50 or so. He posted this a few days ago. He has already had a rough go of it, he has a daughter he is devoted to, and who loves him immensely.
I am as sad as I am angry. “
SARS-CoV-2 Invasion and Pathological Links to Prion Disease
Nearly half of those infected with SARS-CoV-2 experience long-term neurological problems, including brain fog and memory issues.
An infection may accelerate or exacerbate prion diseases like Creutzfeldt–Jakob disease, leading to rapid neurodegeneration.
Worse, most people don’t even notice it has happened to themselves.
“Worse, most people don’t even notice it has happened to themselves.
But I can tell you we who continue to mask and have many fewer COVID infections can see the growing cognitive damage in more and more people around us.
Memory problems, like recall and word finding delays. Weakness and fatigue and motor control impairment. Growing executive function and emotional regulation deficits.
More and more friends disables and forced out of work or school by Long COVID symptoms.
It’s scary to witness the broad societal decline, and dispiriting to see so many governments and Public Health agencies persist in minimizing the growing problem.”