APQ4 antibodies

AAN 2023: NMOSD antibodies seen in blood years before symptoms

Antibodies against aquaporin-4 (AQP4) are detectable in the blood several years before symptoms occur in most people with neuromyelitis optica spectrum disorder (NMOSD), according to a U.S. study. Tammy Smith, MD, PhD, of the University of Utah, presented the findings at the recent American Academy of Neurology (AAN) annual…

System Marking 4 Stages of NMOSD, by Astrocyte Damage, Proposed

A system that stages neuromyelitis optica spectrum disorder (NMOSD) based on damage to astrocytes — the specific brain cells that are attacked in NMOSD — was recently developed by a team of researchers in Japan. While more work is needed, the system identifies four stages, largely based on astrocytopathy…