Evidence map›Paper›PMID 20404023›Full record

ArticleExperimental biology and medicine (Maywood, N.J.)2010

Differential effects of whole soy extract and soy isoflavones on apoptosis in prostate cancer cells.

Anna Hsu, Tammy M Bray, William G Helferich, Daniel R Doerge, Emily Ho

Abstract read
In one paragraph

Article in Experimental biology and medicine (Maywood, N.J.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 3 pooled it
5.8field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 3 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Article
  8. Cellular and Molecular Mechanisms Modulated by Genistein in Cancer.International journal of molecular sciences · 2025
    Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. 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

5 authors at 4 institutions in 2 countries.

Anna HsuDepartment of Nutrition and Exercise Sciences, 103 Milam Hall, Oregon State University, Corvallis OR 97331, USA.
Tammy M Bray
William G Helferich
Daniel R Doerge
Emily Ho
Nutrition Sciences (Belgium) · BENational Center for Toxicological Research · USOregon State University · USUniversity of Illinois Urbana-Champaign · US

Funding

Reducing Susceptibility to Environmental Stress Throughout the Life SpanP30ES000210 · NIEHS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 1985 to 2015
$21.4M
PHYTOESTROGENS AND AGING: DOSE, TIMING &TISSUEP01AG024387 · NIA · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI HELFERICH, WILLIAM G · 2004 to 2008
$7.8M
Pharmacokinetics, Bioavailability, and Metabolism/Daniel R. DoergeP50AT006268 · NCCIH · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI HELFERICH, WILLIAM G · 2010 to 2015
$7.6M
Diet, Endocrine-Immune Interactions &Prostate CancerR01CA107693 · NCI · OREGON STATE UNIVERSITY · PI BRAY, TAMMY M · 2004 to 2008
$1.3M
NCCIH NIH HHS P50 AT006268NCI NIH HHS CA107693NCI NIH HHS R01 CA107693NIA NIH HHS P01 AG024387NIA NIH HHS P01-AG024387NIEHS NIH HHS P30 ES000210NIEHS NIH HHS P30 ES00210
6 · The paper itself

Abstract

Previous studies have suggested that soy isoflavones exert anticarcinogenic effects against prostate cancer. We propose that soy extracts, containing a mixture of soy isoflavones and other bioactive components, would be a more potent chemo-preventive agent than individual soy isoflavones. We compared the apoptotic effects of whole soy extracts and individual soy isoflavones, genistein and daidzein, on prostate cancer cells. The soy extract contained 50% w/w of total isoflavones with approximately 1:5.5:3.5 ratios of genistin, daidzin and glycitin, respectively. Benign prostate hyperplasia (BPH-1), LnCap and PC3 cells were treated with varying concentrations of soy extract, genistein or daidzein and analyzed for cell cycle alterations and induction of apoptosis. At equal concentrations (25 micromol/L), soy extract induced a significantly higher percentage of cells undergoing apoptosis than genistein or daidzein (P < 0.001). No significant changes in cell cycle arrest or apoptosis were observed in non-cancerous BPH-1 cells treated with soy extract, suggesting that the effects of soy extract may be tumor cell specific. On the contrary, both genistein and daidzein induced apoptosis in BPH-1 cells, suggesting that individual isoflavones may have cytotoxicity in non-cancerous cells. Soy extracts also increased Bax expression in PC3 cells, but no significant changes in nuclear factor kappaB (NF kappaB) activation were detected, suggesting that the induction of apoptosis was independent of the NF kappaB pathway. Food products that bear a combination of active compounds may be more efficacious and safer as chemo-preventive agents than individual compounds. This 'whole-food'-based approach is significant for the development of public health recommendations for prostate cancer prevention.

Indexed as

Anticarcinogenic AgentsApoptosisbcl-2-Associated X ProteinCaspasesCell CycleCell Line, TumorDietary SupplementsEnzyme ActivationGlycine maxHumansIsoflavonesMaleNF-kappa BPhytoestrogensPlant ExtractsProstatic NeoplasmsAnticarcinogenic AgentsBAX protein, humanbcl-2-Associated X ProteinCaspasesdaidzeingenistinIsoflavonesNF-kappa BPhytoestrogensPlant Extracts

Identifiers

PMID20404023
PMCPMC4125131
OpenAlexW2118731083

What OpenQuestion holds

Textmetadata
LicenceTDM
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.