A neuroscientist at the
University of Colorado School of Medicine I Aurora, Colorado, was doing studies
with mice. So the story goes, she was surprised to notice that the brains of
some female mice who had Down Syndrome (a defect involving chromosome 21), evidenced some unexpected
abnormalities. She already knew that the brains of trisomic male mice (with
Down Syndrome) showed changes in their hippocampus related to protein levels.
These female mice, however, showed the most serious changes in their
cerebellums. Mice and rats have similarities to the human brain. Therefore,
findings in these rodents often lead to potential correlations with human
brains. Gardener has been quoted as saying, “If we find that
males or females are differing not only in their baseline impairment, but in
their response to drugs, we need to know that. We could be missing a big piece
of information that could lead to better or different clinical trials.” So, if male mice had changes in their hippocampus
(the brain’s search engine), and female mice had more significant changes in
their cerebellum, this potentially could have implications for humans with Down
Syndrome. More tomorrow.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment