Alteration of CaBP expression pattern in the nucleus magnocellularis following unilateral cochlear ablation in adult zebra finches.

ABSTRACT: Songbirds have the rare ability of auditory-vocal learning and maintenance. Up to now, the organization and function of the nucleus magnocellularis (NM), the first relay of the avian ascending auditory pathway is largely based on studies in non-vocal learning species, such as chickens and owls. To investigate whether NM exhibits different histochemical properties associated with auditory processing in songbirds, we examined the expression patterns of three calcium-binding proteins (CaBPs), including calretinin (CR), parvalbumin (PV) and calbindin-D28k (CB), and their relations to auditory inputs in NM in adult zebra finches. We found enriched and co-localized immunostaining of CR, PV and CB in the majority of NM neurons, without neuronal population preference. Furthermore, they were sensit

SUBMITTER: Li J 

PROVIDER: S-EPMC3828381 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature