Hexosaminidase Activities in a Case of Systemic GM2 Gangliosidosis of Late Infantile Type

Abstract

An unusual systemic GM2 gangliosidosis of late infantile type was shown to have high levels of hexosaminidase activity in brain and liver. It, therefore, differs from another GM2 variant of late infantile type reported by Sandhoff et al. (2), in which hexosaminidase activity was absent.