Evidence map›Paper›PMID 7645762›Full record

ArticleAnatomy and embryology1995

Number of nucleoli and coiled bodies and distribution of fibrillar centres in differentiating Purkinje neurons of chick and rat cerebellum.

M Lafarga, M A Andrés, C Fernández-Viadero, J Villegas, M T Berciano

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Article in Anatomy and embryology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Review
  2. Article
  3. A Ribosomal Perspective on Neuronal Local Protein Synthesis.Frontiers in molecular neuroscience · 2022
    Review
  4. Article
  5. Cajal bodies in neurons.RNA biology · 2017
    Review
  6. Review
4 · The record

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5 · Who and what money

Authors and funding

5 authors.

M LafargaDepartment of Anatomy and Cell Biology, University of Cantabria, Santander, Spain.
M A Andrés
C Fernández-Viadero
J Villegas
M T Berciano

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We used differentiating chick and rat Purkinje cells to investigate in homologous neurons the influence of the number of nucleolar organizer regions (two in the chick and six in the rat) on the behaviour of the nucleolus and coiled bodies. We employed specific silver-staining methods on smear preparations and on semithin and ultrathin sections. In chick Purkinje cells the number of nucleolar silver-staining granules increased from 15.7 +/- 3 (mean +/- SD) at embryonic day 13 to 23.8 +/- 3 at post-hatching day 7. These nucleolar granules were unevenly distributed between the two nucleoli of binucleolated cells. Electron-microscopic cytochemistry showed that nucleolar granules are equivalent to the fibrillar centres with their associated shell of dense fibrillar component. A reduction in the number of nucleoli was found during the differentiation of both chick and rat Purkinje cells, although in mature cells the average number of nucleoli per cell was higher in the chick (1.60) than in the rat (1.07). The number of coiled bodies decreased from 1.33 in newborn rats to 0.47 at postnatal day 90 in the rat. Coiled bodies were not observed in homologous chick Purkinje cells. The dynamic behaviour of nucleoli and coiled bodies during neuronal differentiation and the relationship of these two nuclear organelles with the number of nucleolar organizer regions is discussed.

Indexed as

AnimalsAnimals, NewbornCell DifferentiationCell NucleolusCell NucleusChick EmbryoChickensMicroscopy, ElectronNucleolus Organizer RegionPurkinje CellsRatsRats, Sprague-DawleySilver Staining

Identifiers

PMID7645762

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