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Sensory conditioning and sensory stimulation do not affect GABA-A receptor binding in the barrel field of mice

100%
Jablonski B., Skangiel-Kramska J.
Acta Neurobiologiae Experimentalis
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1995
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vol. 55
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issue 4
289-293
2
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Overlap of sensory representation in rat barrel cortex after neonatal vibrissectomy

100%
Kossut M., Siucinska E.
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EN
Cortical repesentation of the common fur of mysticial pad is situated outside poster-medial barrel subfield (PMBSF) in rat primary somatosensory cortex.Following neonatal vibrissectomy, stimulation of the common fur activates the neurone in PMBSF.We examined if sparing of the mystacial vibrissa from the neonatal ablation, which results in a very extensive increase of its cortical repesentation, would prevent the invasion of the common fur inputs into the PMBSF.The cortical representation were mapped with 2-deoxyglucose (2DG).It was found that six weeks after neonatal vibrissectomy sparing C3 vibrissa and common fur inputs were representes into the PMBSF.Their representation shifed from its normal location into the barriel field.This effect was observed in cortical layers II/III, IV and V.
3
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Dendritic pattern in mouse barrel field after a neonatal vibrissal follicles removal MAP-2 immunohistochemistry

88%
Majewska B., Skangiel-Kramska J.
Acta Neurobiologiae Experimentalis
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1996
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vol. 56
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issue 2
561-566
EN
A distribution of dendrites was studied in mouse barrel field after a neonatal partial lession of vibrissal follicles using anti-MAP-2 immunohistochemistry.The effect of a neonatal vibrissal follicles removal was studied in adult mice: barrels correspodning to intact follicles were enlarged whereas those representing removed follicles had not developed.MAP-2 immunopositive profiles were considered to be dendritic clusters and their packing density (a number per unit area) was calculated in an enlarged barrel and compared to a control barrel in a contralatral hamisphere.A decrease in the packing density of large dendritic clusters, presumably arising from layer V, was observed in an enlarged barrel in comparison to its control counterpart.This result may indicate a selective neonatal lesion of vibrissal follicles.
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