Somi Igbene, PhD, science writer —

A greater number of CAG repeats within the HTT gene — the genetic cause of Huntington’s disease — is linked to earlier disease onset and death, but is not an independent predictor of mortality in people with the neurodegenerative disease, a study shows. These findings suggest that “non-genetic factors…

Scientists have created a map of the cells contained in human brain blood vessels. Using the map as a reference, they have discovered certain gene changes occurring in specific brain cells in Huntington’s disease. The study, “Single-cell dissection of the human brain vasculature,” was published in Nature.