Evidence map›Paper›PMID 20809233›Full record

ArticleHistochemistry and cell biology2010

Lamellar body ultrastructure revisited: high-pressure freezing and cryo-electron microscopy of vitreous sections.

Dimitri Vanhecke, Gudrun Herrmann, Werner Graber, Therese Hillmann-Marti, Christian Mühlfeld, Daniel Studer, Matthias Ochs

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Article in Histochemistry and cell biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.9field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Volume electron microscopy: analyzing the lung.Histochemistry and cell biology · 2021
    Review
  7. Article
  8. On Top of the Alveolar Epithelium: Surfactant and the Glycocalyx.International journal of molecular sciences · 2020
    Review
  9. ATP is stored in lamellar bodies to activate vesicular P2XThe Journal of general physiology · 2018
    Article
  10. Article
  11. Article
  12. Using electron microscopes to look into the lung.Histochemistry and cell biology · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Histochemistry and cell biology: the annual review 2010.Histochemistry and cell biology · 2011
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Dimitri VanheckeInstitute of Anatomy, University of Bern, Bern, Switzerland. vanhecke@biochem.mpg.de
Gudrun Herrmann
Werner Graber
Therese Hillmann-Marti
Christian Mühlfeld
Daniel Studer
Matthias Ochs
University of Bern · CHMax Planck Institute of Biochemistry · DEMedizinische Hochschule Hannover · DEUniversity of Giessen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lamellar bodies are the storage sites for lung surfactant within type II alveolar epithelial cells. The structure-function models of lamellar bodies are based on microscopic analyses of chemically fixed tissue. Despite available alternative fixation methods that are less prone to artifacts, such as cryofixation by high-pressure freezing, the nature of the lung, being mostly air filled, makes it difficult to take advantage of these improved methods. In this paper, we propose a new approach and show for the first time the ultrastructure of intracellular lamellar bodies based on cryo-electron microscopy of vitreous sections in the range of nanometer resolution. Thus, unspoiled by chemical fixation, dehydration and contrasting agents, a close to native structure is revealed. Our approach uses perfluorocarbon to substitute the air in the alveoli. Lung tissue was subsequently high-pressure frozen, cryosectioned and observed in a cryo-electron microscope. The lamellar bodies clearly show a tight lamellar morphology. The periodicity of these lamellae was 7.3 nm. Lamellar bifurcations were observed in our cryosections. The technical approach described in this paper allows the examination of the native cellular ultrastructure of the surfactant system under near in vivo conditions, and therefore opens up prospectives for scrutinizing various theories of lamellar body biogenesis, exocytosis and recycling.

Indexed as

AnimalsArtifactsCryoelectron MicroscopyCryopreservationCryoultramicrotomyFluorocarbonsFreeze SubstitutionFreezingIceImage Processing, Computer-AssistedMiceMice, Inbred BALB CPressurePulmonary AlveoliPulmonary SurfactantsSecretory VesiclesFluorocarbonsIcePulmonary Surfactants

Identifiers

PMID20809233
OpenAlexW1986780505

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.