Meanings of reduce myelin in English

Spared axons exhibited a marginally reduced myelin thickness and significantly shorter internodes.

Finding something as subtle as reduced myelin on cranial nerves would be kinda iffy.

These quantitative MT-MRI changes correlated highly with postmortem findings of reduced myelin basic protein in bilateral white matter tracts.

However, these newly differentiated oligodendrocytes were dysfunctional as suggested by their reduced myelin basic protein and monocarboxylate transporter 1 expression.