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2009 | 69 | 2 |

Tytuł artykułu

Regional differences in the vulnerability of substantia nigra dopaminergic neurons in weaver mice

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Vulnerability of midbrain dopaminergic (DA) neurons in the weaver mouse was studied at postnatal (P) days 8 and 90, in chosen coronal levels throughout the anteroposterior (AP) extent of the substantia nigra pars compacta (SNc). Wild-type (+/+) and homozygous weaver (wv/wv) mice used were the offspring of pregnant dams injected in several cases with tritiated thymidine on embryonic days 11-15. DA neurons were identified for their tyrosine hydroxylase immunoreactivity. Data reveal that at P8, the frequency of both +/+ and wv/wv late-generated DA cells increases from rostral to caudal SNc. No apparent DA-cell loss was observed at P8 in the mutant genotype, irrespective of the AP level considered. However, throughout the AP, there was a significant reduction in the number of these neurons at any level in 90-day-old weavers. Comparison of P8 and P90 +/+ SNc suggests that cell death is not a major aspect in the developmental regulation of normal DA neurons, although numerical cell depletion in the postnatal development of weaver SNc probably results from the amplification of a basal cell-death process, which affected all the coronal levels studied.

Wydawca

-

Rocznik

Tom

69

Numer

2

Opis fizyczny

p.198-206,fig.,ref.

Twórcy

autor
  • Antonomous University of Barcelona, Barcelona, Spain
autor
autor
autor
autor
autor

Bibliografia

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Typ dokumentu

Bibliografia

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Identyfikator YADDA

bwmeta1.element.agro-article-06fc0986-1a90-4f59-820a-c57bcc7fd22b
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