X chromosome genes boost female brain
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Silent X chromosome genes 'reawaken' in older females, perhaps boosting brain power, study finds
83% Informative
A new study shows that dormant genes on the X chromosome may reawaken in old age.
This may help explain why females show a higher level of cognitive resilience in age than males.
The findings come from a new study in lab mice and genetic data from humans.
More research is still needed to confirm that the findings translate to people.
PLP1 carries instructions to make a key component of myelin , the insulation that helps neurons send signals efficiently.
It's known that mutations in the gene can decrease myelin in the brain, resulting in intellectual disability.
The researchers ran experiments with male and female mice to see if the gene reawakening might boost cognition.
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