Did you know that…
oligodendrocytes*
are the cells that support the functioning of neurons in the brain, but popular
disinfectants cause cell death.
Scientists[1]
have found out which of the most common chemicals affect the growth of
oligodendrocytes[2],
the glia cells[3]
that support neurons in the brain. More precisely, they serve as an insulating
"winding" for axons, contributing to the rapid transmission of nerve
impulses.
The
structure is very similar to a roll, in which the neuron serves as a
"filling" wrapped in numerous layers of glial cells instead of dough.
Thus, the
substances from the group of quaternary ammonium compounds turned out to be
toxic to oligodendrocytes - the cells died due to a nonspecific stress response
through the mechanism of programmed cell death (apoptosis[4]).
The result
is alarming, as quaternary ammonium derivatives are actively added to cosmetics
(including hair conditioners) and used for disinfection.
Many of
these disinfectants (e.g., benzalkonium chloride) were recommended for use to
protect against the coronavirus during the COVID-19 pandemic. It turned out
that they cause brain cell death.
The authors
emphasize that the described compounds are able to penetrate the brain through
the blood-brain barrier[5]
(BBB) and affect the development of the child's brain both in utero and after
birth.