U.S. regulators on June 7 approved Biogen Inc.’s aducanumab as the first treatment to attack a likely cause of Alzheimer’s disease despite controversy over whether the clinical evidence proves the drug works, sending the company’s shares soaring.

A study published in the Journal of the American Medical Association shows that a new blood test may be helpful for detecting Alzheimer’s disease as early as 20 years before the onset of cognitive impairment.

Researchers with the University of California, Los Angeles (UCLA) Health Sciences have identified two major groups of genes that, when mutated, results in overproduction of the tau protein, at least in mice.

Researchers have discovered a protein that could help diagnose a degenerative brain disease commonly found in athletes, veterans of military service and others who have experienced brain trauma.