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J Neural Transm (Vienna). 1997;104(4-5):549-59.

Cortical layer I changes in schizophrenia: a marker for impaired brain development?

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Department of Psychiatry, University of W├╝rzburg, Federal Republic of Germany.


The prefrontal cortices of healthy control subjects and schizophrenic patients were examined with an antibody mixture against non-phosphorylated neurofilaments (SMI 311). SMI 311 immunoreactivity was observed in numerous pyramidal neurons of layers II to VI and in Cajal-Retzius cells (CRC) of layer I. On the basis of their Golgi-like immunostaining, CRC could be classified into three morphologically heterogeneous groups, which showed different distributions in the two proband groups. The overall density of CRC in layer I did not differ significantly between controls and schizophrenics. However, CRC were more numerous in the lower third of layer I in schizophrenics and in the upper and middle third of layer I in controls. CRC play a key role in neuronal migration, thus, our results support the neurodevelopmental hypotheses of schizophrenic pathophysiology.

[Indexed for MEDLINE]

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