As it is the case in other animal models of MEB/WWS [41], [42], enhanced glial fibrillary acid protein (GFAP) immunoreactivity, which is reflective of astrocytic gliosis, was observed in the hippocampus and cerebral cortex of Col4a1+/Δex40 mice (Figure S2). The gene discussed is GFAP; the disease is muscular dystrophy-dystroglycanopathy, type A.