Author Archives: Marisa Wexler MS

Elevated GFAP Levels Linked to More Motor Impairment in SMA

Higher levels of the glial fibrillary acidic protein (GFAP) in the fluid around the brain and spinal cord are associated with poorer motor function among people with spinal muscular atrophy (SMA), a new study reports. These results indicate that cells called astrocytes are more active in advanced SMA,…

Molecular Feedback Loop May Explain Motor Neuron Damage

The RNA-binding protein Mid1 increases levels of the mutated androgen receptor (AR) that drives nerve cell degeneration in spinal and bulbar muscular atrophy (SBMA), a new study shows. Since Mid1 is expressed mainly in lower motor neurons, the nerve cells mainly affected in SBMA, the study’s researchers proposed…