the present study demonstrated that ( 1 ) proliferating cells in the gray matter ( cerebral cortex and caudate-putamen ) are only few at birth ( li = 0.54-0.78 % ) , which further decrease during the following few weeks , and disappear by adulthood , ( 2 ) in the white matter ( corpus callosum ) , cell proliferation is relatively active within 1 week after birth ( li = 5.6-6.3 % ) , but becomes inactive thereafter , ( 3 ) the proliferative activity of the cells in the subependymal layer of the lateral ventricle is very high at birth ( li = 15.5 % ) , which somewhat decreases during the following few weeks , but still remains high in adulthood ( li = 7.5 % ) .
C0007634
cells
C0596290
cell proliferation