Evidence map›Paper›PMID 28358699›Full record

ArticleIn vivo (Athens, Greece)

Chemopreventive Action by Ethanol-extracted Brazilian Green Propolis on Post-initiation Phase of Inflammation-associated Rat Colon Tumorigenesis.

Kenichiro Doi, Masaki Fujioka, Yui Sokuza, Mariko Ohnishi, Min Gi, Masanori Takeshita, Kenji Kumada, Anna Kakehashi, Hideki Wanibuchi

Open access · diamondAbstract read
In one paragraph

Article in In vivo (Athens, Greece). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. An Insight into Anticancer Effect of Propolis and Its Constituents: A Review of Molecular Mechanisms.Evidence-based complementary and alternative medicine : eCAM · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Propolis and Its Potential to Treat Gastrointestinal Disorders.Evidence-based complementary and alternative medicine : eCAM · 2018
    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

9 authors at 1 institution in 1 country.

Kenichiro DoiDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Masaki FujiokaDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Yui SokuzaDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Mariko OhnishiDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Min GiDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Masanori TakeshitaDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Kenji KumadaDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Anna KakehashiDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Hideki WanibuchiDepartment of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka, Japan wani@med.osaka-cu.ac.jp.
Osaka City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimPropolis has since long been utilized in numerous folk medicines with a variety of medicinal properties. In this study, the effects of ethanol-extracted (EEP) and water-extracted (WEP) Brazilian green propolis on the post-initiation phase of inflammation-associated rat colon tumorigenesis were directly compared. MATERIALS AND

methodsMale F344 rats at 6 weeks of age were subcutaneously injected with 1,2-dimethylhydrazine (DMH) at 40 mg/kg body weight twice during the first week, followed by 1% dextran sodium sulfate (DSS) in drinking water for one week. After a 1-week no-treatment period, animals were administered either basal Oriental MF powdered diet, or 1% EEP or 1% WEP in the basal diet until week 32.

resultsPost-initiation treatment with EEP significantly reduced the multiplicity of colorectal carcinomas compared to the control (0.40±0.13/rat vs. 2.29±0.84/rat, respectively, p<0.05), and EEP also reduced the tumor volume. Immunohistochemically, expression of inflammation-associated proteins inducible nitric oxide synthase, tumor necrotic factor alpha, nuclear factor kappa B and glutathione peroxidase-2 were significantly diminished in colorectal tumors from EEP-treated rats.

conclusionSuppression of inflammation and oxidative stress, which had been triggered by DMH and promoted by DSS, was a primary mechanism by which EEP suppressed carcinogenesis.

Indexed as

1,2-DimethylhydrazineAnimalsCarcinogensCell Transformation, NeoplasticColitisColonColonic NeoplasmsDextran SulfateEthanolGlutathione PeroxidaseImmunohistochemistryMaleNF-kappa BNitric Oxide Synthase Type IIPropolisRats, Inbred F3441,2-DimethylhydrazineCarcinogensDextran SulfateEthanolGlutathione Peroxidaseglutathione peroxidase 2, ratNF-kappa BNitric Oxide Synthase Type IIPropolisTumor Necrosis Factor-alphacolon cancerdextran sodium sulfatedimethylhydrazineEthanol-extracted propolisinflammationoxidative stressrat

Identifiers

PMID28358699
PMCPMC5411744
OpenAlexW2593941064

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.