Scientists can't yet grow spare parts of the human brain to fix neurological injuries or defects, but they have recently used stem cells to
create brain organoids, formations of cells that mimic some of the brain's regions.
She disproved the theory that neurons are assigned a certain identity in the embryo, discovered that neurons don't all myelinate their axons in the same way, and is now a pioneer in
creating brain organoids to study basic aspects of development.
To determine whether the Zika virus caused this, a number of independent teams of researchers — including two in Brazil and one at the University of California, San Diego —
created brain organoids from healthy human cells and infected some of them with the Zika virus.
Not exact matches
Since the first human
brain organoids were
created from stem cells in 2013, scientists have gotten them to form structures like those in the
brains of fetuses, to sprout dozens of different kinds of
brain cells, and to develop abnormalities like those causing neurological diseases such as Timothy syndrome.
Chen agrees: He said his experiment «carries much less risk of
creating animals with greater «
brain power» than normal» because the human
organoid goes into «a specific region of already developed
brain.»
In the barely three years since biologists discovered how to
create these «
brain organoids,» the lentil - sized structures have taken neuroscience by storm.
His team's first
brain organoids were
created from the cells of healthy people.
Researchers elsewhere quickly adapted the methodology to
create additional
organoids — of the eye, lung, heart and
brain — and their associated diseases, including cancers.