since the regulation of the vascular permeability in the cns is dependent partly on the enzymes associated with the wall of brain capillaries , the histochemical demonstration of these enzymes may furnish further data on the function of the blood brain barrier ( bbb ) , a new methodological approach , using brain smears was developed for the histochemical demonstration of several enzymes participating in the function of the bbb .
C3714787
cns
C0006104
brain