Evidence map›Paper›PMID 17912567›Full record

ArticleLipids2008

Estradiol favors the formation of eicosapentaenoic acid (20:5n-3) and n-3 docosapentaenoic acid (22:5n-3) from alpha-linolenic acid (18:3n-3) in SH-SY5Y neuroblastoma cells.

Jean-Marc Alessandri, Audrey Extier, Bénédicte Langelier, Marie-Hélène Perruchot, Christine Heberden, Philippe Guesnet, Monique Lavialle

Abstract read
PubMed Publisher
In one paragraph

Article in Lipids, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

17 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
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  6. Article
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  9. Impact of estrogens and estrogen receptor-α in brain lipid metabolism.American journal of physiology. Endocrinology and metabolism · 2018
    Review
  10. Review
  11. Article
  12. Review
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  14. Which has the stronger impact on coronary artery disease, eicosapentaenoic acid or docosahexaenoic acid?Hypertension research : official journal of the Japanese Society of Hypertension · 2016
    Article
  15. Article
  16. Article
  17. 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.

Jean-Marc AlessandriUnit of Lipid Nutrition and Regulation of Brain Functions, Nu.Re.Li.Ce, INRA, Jouy-en-Josas, France. Jean-Marc.Alessandri@jouy.inra.fr
Audrey Extier
Bénédicte Langelier
Marie-Hélène Perruchot
Christine Heberden
Philippe Guesnet
Monique Lavialle

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Whether neurosteroids regulate the synthesis of long chain polyunsaturated fatty acids in brain cells is unknown. We examined the influence of 17-beta-estradiol (E2) on the capacity of SH-SY5Y cells supplemented with alpha-linolenic acid (ALA), to produce eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA). Cells were incubated for 24 or 72 h with ALA added alone or in combination with E2 (ALA + E2). Fatty acids were analyzed by gas chromatography of ethanolamine glycerophospholipids (EtnGpl) and phosphatidylcholine (PtdCho). Incubation for 24 h with ALA alone increased EPA and DPA in EtnGpl, by 330 and 430% compared to controls (P < 0.001) and DHA by only 10% (P < 0.05). Although DHA increased by 30% (P < 0.001) in ALA + E2-treated cells, the difference between the ALA and ALA + E2 treatments were not significant after 24 h (Anova-1, Fisher's test). After 72 h, EPA, DPA and DHA further increased in EtnGpl and PtdCho of cells supplemented with ALA or ALA + E2. Incubation for 72 h with ALA + E2 specifically increased EPA (+34% in EtnGpl, P < 0.001) and DPA (+15%, P < 0.001) compared to ALA alone. Thus, SH-SY5Y cells produced membrane EPA, DPA and DHA from supplemental ALA. The formation of DHA was limited, even in the presence of E2. E2 significantly favored EPA and DPA production in cells grown for 72 h. Enhanced synthesis of ALA-elongation products in neuroblastoma cells treated with E2 supports the hypothesis that neurosteroids could modulate the metabolism of PUFA.

Indexed as

alpha-Linolenic AcidCell Line, TumorCell ProliferationDocosahexaenoic AcidsDose-Response Relationship, DrugEicosapentaenoic AcidEstradiolFatty Acids, UnsaturatedHumansNeuroblastomaPhospholipidsTumor Cells, Culturedalpha-Linolenic AcidDocosahexaenoic Acidsdocosapentaenoic acidEicosapentaenoic AcidEstradiolFatty Acids, UnsaturatedPhospholipids

Identifiers

PMID17912567
OpenAlexW2149590791

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.