Evidence map›Paper›PMID 20652274›Full record

ArticleEuropean journal of nutrition2011

Apple juice intervention modulates expression of ARE-dependent genes in rat colon and liver.

Bülent Soyalan, Jutta Minn, Hans J Schmitz, Dieter Schrenk, Frank Will, Helmut Dietrich, Matthias Baum, Gerhard Eisenbrand, Christine Janzowski

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European journal of nutrition, 2011. 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
2.6field-weighted citation impact, top 11% 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, 47 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
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  5. The beginning of GPX2 and 30 years later.Free radical biology & medicine · 2022
    Review
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  9. Article
  10. Protective Effects of L-Malate against Myocardial Ischemia/Reperfusion Injury in Rats.Evidence-based complementary and alternative medicine : eCAM · 2016
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Phytochemicals and colorectal cancer prevention--myth or reality?Nature reviews. Gastroenterology & hepatology · 2011
    Article
  17. 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

9 authors at 2 institutions in 1 country.

Bülent SoyalanFaculty of Chemistry, Food Chemistry & Toxicology, University of Kaiserslautern, Kaiserslautern, Germany. bsoyalan@yahoo.de
Jutta Minn
Hans J Schmitz
Dieter Schrenk
Frank Will
Helmut Dietrich
Matthias Baum
Gerhard Eisenbrand
Christine Janzowski
University of Kaiserslautern · DEHochschule Geisenheim University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe risk of cancer and other degenerative diseases is inversely correlated with consumption of fruits and vegetables. This beneficial effect is mainly attributed to secondary plant constituents such as polyphenols, supposed to play a major role in protection against ROS (reactive oxygen species)-associated toxicity. AIM OF THE STUDY: To elucidate the potential of differently manufactured apple juices (clear AJ/cloudy AJ/smoothie, in comparison with a polyphenol-free control juice) to modulate expression of ARE-dependent genes.

methodsIn male Sprague-Dawley rats (n = 8/group; 10d juice intervention, 4d wash-out; 4 treatment cycles), expression of target genes (superoxide dismutase, SOD1/SOD2; glutathione peroxidase, GPX1/GPX2; γ-glutamylcysteine ligase, GCLC/GCLM; glutathione reductase, GSR; catalase, CAT; NAD(P)H:quinone oxidoreductase-1, NQO1 and transcription factor erythroid-derived 2-like-2, Nrf2) was quantified with duplex RT-PCR, using glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as control.

resultsIn colon and liver of rats consuming polyphenol-free control juice, rather similar basic expressions were observed (relative GAPDH ratios ranging from 2 to 0.7 and 2.5-0.3, respectively). In the distal colon, apple juice intervention slightly but significantly induced most genes (e.g. GPX2, GSR, CAT, Nrf2; p < 0.001), whereas in the liver only GPX1 and NQO1 mRNA were up-regulated; other hepatic target genes were not affected or down-regulated (SOD1, SOD2, GCLC/M, GSR), concomitant with the absence of Nrf2 induction. Induction of antioxidant gene expression differed with juice type (cloudy AJ > clear AJ ~ smoothie).

conclusionTaken together, the results underline the potential of polyphenol-rich apple juice to increase the expression of ARE-dependent antioxidant genes.

Indexed as

AnimalsAntioxidantsBeveragesCatalaseColonDipeptidesFlavonoidsFruitGlutathione PeroxidaseGlutathione Peroxidase GPX1LiverMaleMalusNAD(P)H Dehydrogenase (Quinone)Oxidative StressPhenolsAntioxidantsCatalaseDipeptidesFlavonoidsgamma-glutamylcysteineGlutathione Peroxidaseglutathione peroxidase 2, ratGlutathione Peroxidase GPX1NAD(P)H Dehydrogenase (Quinone)NQO1 protein, ratPhenolsPolyphenolsReactive Oxygen SpeciesSod1 protein, ratSuperoxide DismutaseSuperoxide Dismutase-1Superoxide Dismutase 2

Identifiers

PMID20652274
OpenAlexW2022069722

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.