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Titolo:
PHENOTYPIC EFFECTS OF THE WEAVER GENE ARE EVIDENT IN THE EMBRYONIC CEREBELLUM BUT NOT IN THE VENTRAL MIDBRAIN
Autore:
BAYER SA; WILLS KV; WEI JJ; FENG Y; DLOUHY SR; HODES ME; VERINA T; GHETTI B;
Indirizzi:
INDIANA UNIV,SCH MED,DEPT MED & MOL GENET INDIANAPOLIS IN 46202 INDIANA UNIV,SCH MED,DEPT MED & MOL GENET INDIANAPOLIS IN 46202 INDIANA UNIV PURDUE UNIV,DEPT BIOL INDIANAPOLIS IN 46202 INDIANA UNIV,SCH MED,DEPT PATHOL & LAB MED INDIANAPOLIS IN 46202
Titolo Testata:
Developmental brain research
fascicolo: 1-2, volume: 96, anno: 1996,
pagine: 130 - 137
SICI:
0165-3806(1996)96:1-2<130:PEOTWG>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTERNAL GRANULAR LAYER; MUTANT MICE; MOUSE CEREBELLUM; POSTNATAL-DEVELOPMENT; DOPAMINE DEFICIENCY; FOLIAL PATTERN; CELL; CORTEX; STRIATUM; NEURONS;
Keywords:
[H-3] THYMIDINE AUTORADIOGRAPHY; CEREBELLAR DEVELOPMENT; DOPAMINE; TYROSINE HYDROXYLASE IMMUNOCYTOCHEMISTRY; WEAVER MUTANT MOUSE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
S.A. Bayer et al., "PHENOTYPIC EFFECTS OF THE WEAVER GENE ARE EVIDENT IN THE EMBRYONIC CEREBELLUM BUT NOT IN THE VENTRAL MIDBRAIN", Developmental brain research, 96(1-2), 1996, pp. 130-137

Abstract

Degeneration of neurons in two structures, the cerabellum and the dopaminergic neurons in the ventral midbrain, is a well characterized action of the weaver gene, In order to see whether the gene has effects prenatally, both the cerebellum and the ventral midbrain were examined in mouse embryos genotyped for the weaver gene (wv, Girk2) on day E19. Anatomically matched sections of the midline cerebellar vermis were quantitatively analyzed 2 h after the dams were given a single injection of [H-3]thymidine. A gene-dose effect was seen in the retardation offissure development. This was more pronounced in homozygotes (wv/wv) and less so in heterozygotes (wv/+) when compared with wild type controls (+/+). Quantitative measures of the following features showed stepwise differences between genotypes so that the wv/wv are most affectedand wv/+ are somewhat affected compared with +/+ : surface length of the midline vermis, area of the entire midline vermis and the externalgerminal layer (egl), total number of cells in the egl, [H-3]thymidine-labeled and -unlabeled egl cells, cells in the Purkinje cell layer, cells in the region of the deep nuclei, [H-3]thymidine-labeled cells in the Purkinje cell layer (presumptive proliferating Bergmann glia), and [H-3]thymidine-labeled cells in the region of the deep nuclei. In contrast to the obvious phenotypic effects of wv in the embryonic cerebellum, qualitative immunocytochemical examination of tyrosine hydroxylase staining in the ventral midbrains of the same embryos showed that tile position and density of the presumptive dopaminergic neurons was similar in all genotypes.

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Documento generato il 01/12/20 alle ore 13:42:44