COVID-19 and the brain: What do we know so far? (medicalnewstoday.com)
From the article above, here are some points that stood out for me.
In their paper, the scientists refer to existing evidence that makes them particularly wary of SARS-CoV-2’s impact on the brain. For example, researchers have found that:
- “Intranasal administration of SARS‐CoV‐2 in mice results in rapid invasion of the brain.”
- “SARS‐CoV‐1 viral particles can be detected post mortem in the cerebrum […] in humans.”
- In post mortem brain tissue, angiotensin-converting enzyme 2 (ACE2) receptors are expressed in the vasculature of the brain’s frontal cortex. Through these receptors, SARS-CoV-2 enters healthy cells.
- In vitro studies have shown that viral spike proteins can damage the blood‐brain barrier.
- A headache, reduced taste, and loss of smell occur before the onset of respiratory symptoms in most COVID-19 patients.
- Delirium, a neuropsychiatric symptom of reduced cognition and memory, “can be the only presenting symptom of SARS‐CoV‐2 infection, even in younger patients. The incidence of delirium in severely ill COVID‐19 patients [in intensive care units (ICUs)] is reported to be as high as 84%,” note the authors.
- Finally, “Abnormal brain imaging has emerged as a major feature of COVID‐19 from all parts of the world,” the team writes.
Then
he study, which appears in the Journal of Experimental Medicine, showed that the new coronavirus was able to infect neurons in these lab-grown organoids and replicate itself by boosting the metabolism of infected cells. Simultaneously, healthy, uninfected neurons in the vicinity died as their oxygen supply was cut off.
The researchers also determined that blocking the ACE2 receptors prevented the virus from infecting the human brain organoids.
The scientists also analyzed the effects of SARS-CoV-2 on the brains of mice genetically modified to produce human ACE2 receptors. Here, the virus altered the brain’s vasculature, or blood vessels. This could, in turn, cut off the brain’s oxygen supply.
and also
“Our thinking that [COVID-19 is] more of a respiratory disease is not necessarily true,” Kumar says. “Once it infects the brain, it can affect anything because the brain is controlling your lungs, the heart, everything. The brain is a very sensitive organ. It’s the central processor for everything.”
So in a sense…
If we follow the rule that neurons that fire together, wire together
then repeated infections will only increase the mental effects and the brain damage.
Leading to a more mentally supressed state of being.
Not to mention the psychosis a lot of people have with it.
which keeps growing and the other parts of the brain are being killed off, (Oxygen deprivation)
