Abstract:
:We examined the responsiveness of rat vestibular ganglion neurons (VGNs) to exogenous neurotrophic factors, BDNF, NT-3, and GDNF, during postnatal development in dissociated cultures. VGNs were obtained from postnatal days (P) 1, 3, 7, and 14. After two days in culture, the survival of VGNs in control cultures without any exogenous neurotrophic factors was greater in younger (P1 or 3) rats than older (P7 or 14) rats. None of the three neurotrophic factors used facilitated survival of VGNs from older rats while only BDNF facilitated survival of VGNs from younger rats. BDNF was also effective both for increasing neurite sprouting in VGNs from younger rats and for neurite extension in VGNs from each of the postnatal ages. VGNs from P1 rats showed responsiveness to all three neurotrophic factors in their neurite sprouting. Developmental changes of VGNs in their responsiveness to exogenous neurotrophic factors should be considered in treating or preventing neuronal degeneration caused by peripheral vestibular lesions.
journal_name
Brain Resjournal_title
Brain researchauthors
Chihara Y,Iwasaki S,Kondo K,Yamasoba Tdoi
10.1016/j.brainres.2011.06.058subject
Has Abstractpub_date
2011-08-23 00:00:00pages
1-7eissn
0006-8993issn
1872-6240pii
S0006-8993(11)01229-7journal_volume
1408pub_type
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