Which of the following statement is false with respect to demyelinating disorders?

Diseases involving biochemical abnormality of myelin are k/a dysmyelinating disorders Eg. Zellweger syndrome, Adult-onset autosomal dominant leukodystrophy MS( Multiple Sclerosis) MC type of demyelinating, chronic inflammatory disorder. | in blood brain barrier permeability ( damage by immune system). More common in females than male.