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American scientists say they have found the solution to the puzzle, paving the way for new treatments to combat the pandemic.
Very close to solution to another great mystery around him coronavirus COVID-19 is the home of the scientific community. American scientists from Vanderbilt University in Nesville, Tennessee announced that they had found one of his mysteries COVID-19 and specifically because the virus attacks many cases its elderly people while seems to leave the children intact.
THE discovery could to pave the way for new therapies to fight the pandemic. According to the research team, children have lower levels of receptor protein SARS-CoV-2 -the virus that causes Covid-19- must invades the lungs.
“Our study provides a biological justification: why children and especially babies are less likely to become infected or have severe symptoms,” he said. Jennifer Sucre, an assistant professor of pediatrics who led the research.
The “spike” protein
When a virus particle is inhaled into the lungs, the “spike” protein attaches to the receptor ACE2, which is found on the surface of some cells in the lung. They found that ACE2 receptor gene expressed at low levels in the mouse lung.
The group then met human lung tissue analysis from donors of different ages and found results similar to what they had seen in mice.
the enzyme that allows the virus to enter the cell increases significantly as a person agesResearchers believe the enzyme could be used to treat people infected with the virus and as a means of preventing exposure. High risk.
