Bipolar disorder type 1 and schizophrenia are accompanied by decreased density of parvalbumin- and somatostatin-positive interneurons in the parahippocampal region

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ID: 117954
2011
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Abstract
GABAergic interneurons synchronize network activities and monitor information flow. Post-mortem studies have reported decreased densities of cortical interneurons in schizophrenia (SZ) and bipolar disorder (BPD). The entorhinal cortex (EC) and the adjacent subicular regions are a hub for integration of hippocampal and cortical information, a process that is disrupted in SZ. Here we contrast and compare the density of interneuron populations in the caudal EC and subicular regions in BPD type I (BPD-I), SZ, and normal control (NC) subjects. Post-mortem human parahippocampal specimens of 13 BPD-I, 11 SZ and 17 NC subjects were used to examine the numerical density of parvalbumin-, somatostatin- or calbindin-positive interneurons. We observed a reduction in the numerical density of parvalbumin- and somatostatin-positive interneurons in the caudal EC and parasubiculum in BPD-I and SZ, but no change in the subiculum. Calbindin-positive interneuron densities were normal in all brain areas examined. The profile of decreased density was strikingly similar in BPD-I and SZ. Our results demonstrate a specific reduction of parvalbumin- and somatostatin-positive interneurons in the parahippocampal region in BPD-I and SZ, likely disrupting synchronization and integration of cortico-hippocampal circuits.
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wang2011actabipolar Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Alice Y. Wang;Kathryn M. Lohmann;C. Kevin Yang;Eric I. Zimmerman;Harry Pantazopoulos;Nicole Herring;Sabina Berretta;Stephan Heckers;Christine Konradi;Alice Y. Wang;Kathryn M. Lohmann;C. Kevin Yang;Eric I. Zimmerman;Harry Pantazopoulos;Nicole Herring;Sabina Berretta;Stephan Heckers;Christine Konradi;
Journal acta neuropathologica
Year 2011
DOI
doi:10.1007/s00401-011-0881-4
URL
https://link.springer.com/article/10.1007/s00401-011-0881-4
Keywords
pathology neurosciences

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