Evidence map›Paper›PMID 15497500›Full record

ArticleCell stress & chaperones2004

Expression of cytoprotective proteins, heat shock protein 70 and metallothioneins, in tissues of Ostrea edulis exposed to heat and heavy metals.

Annamaria Piano, Paola Valbonesi, Elena Fabbri

Open access · greenAbstract read
In one paragraph

Article in Cell stress & chaperones, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

38 citing papers in PubMed, 184 citations in OpenAlex.

  1. Heat Stress Response inEcology and evolution · 2025
    Article
  2. Stress Induced by Fishing in Common Octopus (Animals : an open access journal from MDPI · 2025
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  3. Article
  4. Article
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  6. Article
  7. Seasonal variation in the expression pattern of heat shock protein 70 and 90 in Common carp (Veterinary research forum : an international quarterly journal · 2023
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Exposure ofOxidative medicine and cellular longevity · 2018
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. DnaJ/Hsp40 Family and Parkinson's Disease.Frontiers in neuroscience · 2017
    Review
  18. Responses to elevated COJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2017
    Article
  19. Article
  20. Article
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

3 authors at 1 institution in 1 country.

Annamaria PianoInterdepartment Centre for Environmental Science Research, University of Bologna, via Tombesi dall'Ova 55, 48100 Ravenna, Italy.
Paola Valbonesi
Elena Fabbri
University of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heat shock proteins (Hsps) are constitutively expressed in cells and involved in protein folding, assembly, degradation, intracellular localization, etc, acting as molecular chaperones. However, their overexpression represents a ubiquitous molecular mechanism to cope with stress. Hsps are classified into families, and among them the Hsp70 family appears to be the most evolutionary preserved and distributed in animals. In this study, the expression of Hsp70 and the related messenger ribonucleic acid (mRNA) has been studied in Ostrea edulis after exposure to heat and heavy metals; moreover, levels of metallothioneins (MTs), another class of stress-induced proteins, have contemporaneously been assessed in the same animals. Thermal stress caused the expression of a 69-kDa inducible isoform in gills of O edulis but not in the digestive gland. Northern dot blot analysis confirmed that the transcription of Hsp69-mRNA occurs within 3 hours of stress recovery after oyster exposure at 32 and 35 degrees C. Hsp69-mRNA transcripts were not present in the gills of animals exposed to 38 degrees C after 3 hours of poststress recovery, but they were detected after 24 hours. The expression of the 69-kDa protein in O edulis exposed to 38 degrees C was rather low or totally absent, suggesting that the biochemical machinery at the base of the heat shock response is compromised. Together with the expected increase in MT content, the oysters exposed to Cd showed a significant enhancement of Hsp70, although there was no clear appearance of Hsp69. Interestingly, the levels of MT were significantly increased in the tissues of individuals exposed to thermal stress. Unlike oysters, heat did not provoke the expression of inducible Hsp isoforms in Mytilus galloprovincialis, Tapes philippinarum, and Scapharca inaequivalvis, although it significantly enhanced the expression of constitutive proteins of the 70-kDa family. The expression of newly synthesized Hsp70 isoforms does not seem therefore a common feature in bivalves exposed to thermal stress.

Indexed as

Hot TemperatureAnimalsBlotting, WesternCadmiumDensitometryDose-Response Relationship, DrugDrug SynergismGene Expression RegulationHeat-Shock ResponseHSP70 Heat-Shock ProteinsMetallothioneinMetals, HeavyOstreidaeRNA, MessengerTime FactorsTissue DistributionCadmiumHSP70 Heat-Shock ProteinsMetallothioneinMetals, HeavyRNA, MessengerZinc

Identifiers

PMID15497500
PMCPMC1065293
OpenAlexW1925686649

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.