Diagnosing Alzheimer’s disease before irreversible damage is done is one of medicine’s major goals. Now, a Canadian team has uncovered a technique that may
detect the mind-robbing disorder at its earliest stages.
Researchers at McGill University in Montreal examined more than 7,700 brain images from 1,171 people in various stages of Alzheimer’s progression,
according to the study published in Nature Communications in June. They analyzed blood and cerebrospinal fluid samples, plus study participants’ cognitive
skills. In 78 brain regions, they factored in the pattern of amyloid concentration, glucose metabolism, cerebral blood flow, functional activity and brain
atrophy. Then, the team devised an algorithm to re-create a 30-year trajectory for each of these biological factors.