Fig 1: Expression of transthyretin (TTR) in the choroid plexus and white matter. Immunofluorescence for TTR in frontal sections of normal (wt, a, b) and hydrocephalic hyh (c–e) mice. Choroid plexus epithelial cells expressed TTR in wt (a and b) and hyh (c) mice. Unlike those in normal mice, cells in the affected white matter of hyh mice also expressed TTR (d and e). ncx neocortex, v lateral ventricle lumen, str, striatum, wm white matter. The nuclei are stained blue with DAPI