| Autor: |
Gatome C. W., Slomianka L., Mwangi D. K., Lipp H. P., Amrein I. |
| Rok vydání: |
2010 |
| Zdroj: |
Brain Struct Funct |
| Popis: |
This study describes the organisation of the entorhinal cortex of the Megachiroptera straw coloured fruit bat and Wahlberg's epauletted fruit bat. Using Nissl and Timm stains parvalbumin and SMI 32 immunohistochemistry we identified five fields within the medial (MEA) and lateral (LEA) entorhinal areas. MEA fields E(CL) and E(C) are characterised by a poor differentiation between layers II and III a distinct layer IV and broad stratified layers V and VI. LEA fields E(I) E(R) and E(L) are distinguished by cell clusters in layer II a clear differentiation between layers II and III a wide columnar layer III and a broad sublayer Va. Clustering in LEA layer II was more typical of the straw coloured fruit bat. Timm staining was most intense in layers Ib and II across all fields and layer III of field E(R). Parvalbumin like staining varied along a medio lateral gradient with highest immunoreactivity in layers II and III of MEA and more lateral fields of LEA. Sparse SMI 32 like immunoreactivity was seen only in Wahlberg's epauletted fruit bat. Of the neurons in MEA layer II ovoid stellate cells account for approximately 38 polygonal stellate cells for approximately 8 pyramidal cells for approximately 18 oblique pyramidal cells for approximately 6 and other neurons of variable morphology for approximately 29. Differences between bats and other species in cellular make up and cytoarchitecture of layer II may relate to their three dimensional habitat. Cytoarchitecture of layer V in conjunction with high encephalisation and structural changes in the hippocampus suggest similarities in efferent hippocampal > entorhinal > cortical interactions between fruit bats and primates. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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