Tuesday, 1 December 2020

Malevolent Designer News - How Covid-19 Destroys Your Brain

An electron microscope image (ultrathin section, artificially colored) shows a section of a ciliated cell in the olfactory mucosa. Large numbers of intact SARS-CoV-2 particles (red) are found both inside the cell and on cellular processes. Yellow: kinocilia.

Photo: Michael Laue/RKI & Carsten Dittmayer/Charité
How SARS-CoV-2 reaches the brain: Charité – Universitätsmedizin Berlin

As though intelligent [sic] design Creationists hadn't got enough to worry about trying to explain why their putative designer designed the coronavirus currently killing people by the hundreds of thousands and making millions more sick, they now have to contend with the virus attacking their brain when they stupidly expose themselves to it in one of their super-spreader events when they gather together to shout down their doubts and sing the praises of this malevolent, misanthropic monster.

A team of scientists at the Charité – Universitätsmedizin Berlin, Germany, has now explained how the virus looks for all the world as though it was tailor-made for attacking and destroying the human brain, gaining access to it through the nasal mucosa - if you subscribe to the half-baked intelligent [sic] design notion, that is.

Of course, as proper scientists, they don't ascribe this to deliberate design by a magician, the way cult dogma requires Creationist to, but to the unfortunate close proximity of the lining of the nose to the nerve-endings of the olfactory nerves and the track to the brain that these provide. Creationists, however, must ascribe this to the deliberate design of a sentient magic designer who knew exactly what it was doing and did it in full knowledge of the consequences.

Immunofluorescence staining shows a nerve cell (pink) inside the olfactory mucosa which has been infected with SARS-CoV-2 (yellow). Supporting (epithelial) cells appear blue.
Photo: Jonas Franz/Universitätsmedizin Göttingen
The press release from Universitätsmedizin Berlin explains:
Using post-mortem tissue samples, a team of researchers from Charité – Universitätsmedizin Berlin have studied the mechanisms by which the novel coronavirus can reach the brains of patients with COVID-19, and how the immune system responds to the virus once it does. The results, which show that SARS-CoV-2 enters the brain via nerve cells in the olfactory mucosa, have been published in Nature Neuroscience*. For the first time, researchers have been able to produce electron microscope images of intact coronavirus particles inside the olfactory mucosa.

It is now recognized that COVID-19 is not a purely respiratory disease. In addition to affecting the lungs, SARS-CoV-2 can impact the cardiovascular system, the gastrointestinal tract and the central nervous system. More than one in three people with COVID-19 report neurological symptoms such as loss of, or change in, their sense of smell or taste, headaches, fatigue, dizziness, and nausea. In some patients, the disease can even result in stroke or other serious conditions. Until now, researchers had suspected that these manifestations must be caused by the virus entering and infecting specific cells in the brain. But how does SARS-CoV-2 get there? Under the joint leadership of Dr. Helena Radbruch of Charité’s Department of Neuropathology and the Department’s Director, Prof. Dr. Frank Heppner, a multidisciplinary team of researchers has now traced how the virus enters the central nervous system and subsequently invades the brain.

As part of this research, experts from the fields of neuropathology, pathology, forensic medicine, virology and clinical care studied tissue samples from 33 patients (average age 72) who had died at either Charité or the University Medical Center Göttingen after contracting COVID-19. Using the latest technology, the researchers analyzed samples taken from the deceased patients’ olfactory mucosa and from four different brain regions. Both the tissue samples and distinct cells were tested for SARS-CoV-2 genetic material and a ‘spike protein’ which is found on the surface of the virus. The team provided evidence of the virus in different neuroanatomical structures which connect the eyes, mouth and nose with the brain stem. The olfactory mucosa revealed the highest viral load. Using special tissue stains, the researchers were able to produce the first-ever electron microscopy images of intact coronavirus particles within the olfactory mucosa. These were found both inside nerve cells and in the processes extending from nearby supporting (epithelial) cells. All samples used in this type of image-based analysis must be of the highest possible quality. To guarantee this was the case, the researchers ensured that all clinical and pathological processes were closely aligned and supported by a sophisticated infrastructure.

“These data support the notion that SARS-CoV-2 is able to use the olfactory mucosa as a port of entry into the brain,” says Prof. Heppner. This is also supported by the close anatomical proximity of mucosal cells, blood vessels and nerve cells in the area. “Once inside the olfactory mucosa, the virus appears to use neuroanatomical connections, such as the olfactory nerve, in order to reach the brain,” adds the neuropathologist. “It is important to emphasize, however, that the COVID-19 patients involved in this study had what would be defined as severe disease, belonging to that small group of patients in whom the disease proves fatal. It is not necessarily possible, therefore, to transfer the results of our study to cases with mild or moderate disease.”
Not only does the virus enter the brain but the team found evidence of the damage it does once in there:
The researchers also studied the manner in which the immune system responds to infection with SARS-CoV-2. In addition to finding evidence of activated immune cells in the brain and in the olfactory mucosa, they detected the immune signatures of these cells in the cerebral fluid. In some of the cases studied, the researchers also found tissue damage caused by stroke as a result of thromboembolism (i.e. the obstruction of a blood vessel by a blood clot). “In our eyes, the presence of SARS-CoV-2 in nerve cells of the olfactory mucosa provides good explanation for the neurologic symptoms found in COVID-19 patients, such as a loss of the sense of smell or taste,” explains Prof. Heppner. “We also found SARS-CoV-2 in areas of the brain which control vital functions, such as breathing. It cannot be ruled out that, in patients with severe COVID-19, presence of the virus in these areas of the brain will have an exacerbating impact on respiratory function, adding to breathing problems due to SARS-CoV-2 infection of the lungs. Similar problems might arise in relation to cardiovascular function.”
The team's findings were published yesterday in the journal Nature Neuroscience.
Abstract
The newly identified severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes COVID-19, a pandemic respiratory disease. Moreover, thromboembolic events throughout the body, including in the CNS, have been described. Given the neurological symptoms observed in a large majority of individuals with COVID-19, SARS-CoV-2 penetrance of the CNS is likely. By various means, we demonstrate the presence of SARS-CoV-2 RNA and protein in anatomically distinct regions of the nasopharynx and brain. Furthermore, we describe the morphological changes associated with infection such as thromboembolic ischemic infarction of the CNS and present evidence of SARS-CoV-2 neurotropism. SARS-CoV-2 can enter the nervous system by crossing the neural–mucosal interface in olfactory mucosa, exploiting the close vicinity of olfactory mucosal, endothelial and nervous tissue, including delicate olfactory and sensory nerve endings. Subsequently, SARS-CoV-2 appears to follow neuroanatomical structures, penetrating defined neuroanatomical areas including the primary respiratory and cardiovascular control center in the medulla oblongata.
Not surprisingly, given their refusal to consider difficult questions, I can never get an answer to my very simple question for creationists:
Why is undirected, unplanned, amoral evolution the only explanation for the SARS-CoV-2 virus and the devastating pandemic it is causing, that doesn't leave their putative designer looking like a malevolent, misoginistic, sadistic monster?







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