Evidence that coronavirus invades the central nervous system inducing neurological diseases
The most characteristic symptom of COVID-19 patients is respiratory distress, and most of the patients admitted to the intensive care could not breathe spontaneously.
Additionally, some COVID-19 patients also showed neurologic signs such as headache, nausea and vomiting. Increasing evidence shows that coronavriruses are not always confined to the respiratory tract and that they may also invade the central nervous system inducing neurological diseases.
The infection of SARS-CoV has been reported in the brains from both patients and experimental animals, where the brainstem was heavily infected.
Furthermore, some coronaviruses have been demonstrated able to spread via a synaps-connected route to the medullary cardiorespiratory center from the mechano and chemoreceptors in the lung and lower respiratory airways.
CoV has been reported in the brains from both patients and experimental animals, where the brainstem was heavily infected.
Abstract
Following
the severe acute respiratory syndrome coronavirus (SARS‐CoV) and
Middle East respiratory syndrome coronavirus (MERS‐CoV), another
highly pathogenic coronavirus named SARS‐CoV‐2 (previously known
as 2019‐nCoV) emerged in December 2019 in Wuhan, China, and rapidly
spreads around the world. This virus shares highly homological
sequence with SARS‐CoV, and causes acute, highly lethal pneumonia
(COVID‐19) with clinical symptoms similar to those reported for
SARS‐CoV and MERS‐CoV. The most characteristic symptom of
COVID‐19 patients is respiratory distress, and most of the patients
admitted to the intensive care could not breathe spontaneously.
Additionally, some COVID‐19 patients also showed neurologic signs
such as headache, nausea and vomiting. Increasing evidence shows that
coronavriruses are not always confined to the respiratory tract and
that they may also invade the central nervous system inducing
neurological diseases. The infection of SARS‐CoV has been reported
in the brains from both patients and experimental animals, where the
brainstem was heavily infected. Furthermore, some coronaviruses have
been demonstrated able to spread via a synapse‐connected route to
the medullary cardiorespiratory center from the mechano‐ and
chemoreceptors in the lung and lower respiratory airways. In light of
the high similarity between SARS‐CoV and SARS‐CoV2, it is quite
likely that the potential invasion of SARS‐CoV2 is partially
responsible for the acute respiratory failure of COVID‐19 patients.
Awareness of this will have important guiding significance for the
prevention and treatment of the SARS‐CoV‐2‐induced respiratory
failure.
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