at the earliest stages studied ( embryonic days ( ed ) 26 to 28 ) , the afp in the brain prevails near the cerebral ventricles , while later ( ed 35-46 ) afp also appears in higher concentrations in the differentiating parenchyma of some regions of the brain ( especially in deep layers of the cortical plate or the region of the differentiating hippocampus ) and spinal cord .
C0006104
brain
C0086045
concentrations