Fig. 4From: The value of early and comprehensive diagnoses in a human fetus with hydrocephalus and progressive obliteration of the aqueduct of Sylvius: Case ReportProteins of ependymal cells are present in the hydrocephalic CSF. a Immunoblots of CSF samples from the hydrocephalic case and a control using antibodies against L1-CAM) and AQP-4. The 180 kDa form of L1-CAM (red arrow and star) and other compounds reacting with anti- L1-CAM are detectable in the hydrocephalic CSF but not in the control. The 35 kDa form of AQP-4 (red arrow and star) is readily detectable in the hydrocephalic CSF but not in the control. b Histograms of microdensitometric recordings of immunoblots with anti- L1-CAM and anti-AQP-4, shown in (a). Control, CSF obtained from a fetus with an arachnoid cyst, at 33rd GWBack to article page