Activated glia express TrkC.T1 mRNA at the onset of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) (Brahimi et al., 2016), glaucoma (Bai et al., 2010), and retinitis pigmentosa (Galan et al., 2017). This evidence concerns the gene NTRK3 and neurodegenerative disease.