Purkinje cell loss accompanies motor impairment in rats developing at altered gravity.

Abstract:

:We have previously reported that the developmental exposure of rats to altered gravity (1.65 g) from gestational day 8 to postnatal day 21 impacts motor functions and cerebellar structure. The present study examined whether the decrease in cerebellar mass accompanied by impaired performance on a rotorod in hypergravity-exposed rats was related to a decrease in Purkinje cell number. The total number of Purkinje cells was determined on postnatal day 21 using a stereological analysis applied to paraformaldehyde-fixed cerebellar samples subsequently embedded in celloidin. Total Purkinje cell number was decreased by 17.7-25.3%. These results imply that exposure to altered gravity during Purkinje cell birth may affect their proliferation, resulting in a decrease in Purkinje cell number, which, in turn, leads to motor impairment.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Sajdel-Sulkowska EM,Nguon K,Sulkowski ZL,Rosen GD,Baxter MG

doi

10.1097/00001756-200512190-00014

subject

Has Abstract

pub_date

2005-12-19 00:00:00

pages

2037-40

issue

18

eissn

0959-4965

issn

1473-558X

pii

00001756-200512190-00014

journal_volume

16

pub_type

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