Aquaporin-1 and aquaporin-4, water channel membrane proteins reported in both
experimental animals and in adult humans, have been detected in different, non-
overlapping areas of the central nervous system. This immunohistochemical study describes
the developmental expression pattern of the water channel membrane proteins, aquaporin-1
and aquaporin-4, in various structures of human fetal brain over the gestational period of 14–
40 weeks. Aquaporin-1 immunostaining was exclusively found in the epithelial cells of the …