Evidence map›Paper›PMID 21990307›Full record

Trial reportCancer prevention research (Philadelphia, Pa.)2011

Phase II study of the effects of ginger root extract on eicosanoids in colon mucosa in people at normal risk for colorectal cancer.

Suzanna M Zick, D Kim Turgeon, Shaiju K Vareed, Mack T Ruffin, Amie J Litzinger, Benjamin D Wright, Sara Alrawi, Daniel P Normolle, Zora Djuric, Dean E Brenner

Registry-linked trialOpen access · greenAbstract readClinical Trial, Phase IIRandomized Controlled Trial
In one paragraph

Trial report in Cancer prevention research (Philadelphia, Pa.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01344538 (Phase II Study of the Effects of Ginger Root Extract on Eicosanoids in Colon Mucosa in People at Normal Risk for Colorectal Cancer), which is not on this map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 3% 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.

NCT01344538 phase2completednot on this map

Phase II Study of the Effects of Ginger Root Extract on Eicosanoids in Colon Mucosa in People at Normal Risk for Colorectal Cancer

TypeinterventionalSponsorUniversity of MichiganRan2007 to 2012Enrolled30ConditionsColorectal CancerArmsGinger Root Extract (Pure Encapsulations), Placebo Capsule
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Effect of ginger root on cyclooxygenase-1 and 15-hydroxyprostaglandin dehydrogenase expression in colonic mucosa of humans at normal and increased risk for colorectal cancer.European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP) · 2013
    Trial
  6. Trial
  7. Role of Fruit-Derived Antioxidants in Fighting Cancer: A Narrative Review.Indian journal of clinical biochemistry : IJCB · 2025
    Review
  8. Review
  9. Review
  10. Low-Dose Oral Ginger Improves Daily Symptom Scores in Asthma.Pharmaceuticals (Basel, Switzerland) · 2024
    Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. Polyphenols and their effects on diabetes management: A review.Medical journal of the Islamic Republic of Iran · 2017
    Review
  19. Article
  20. 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

10 authors at 2 institutions in 1 country.

Suzanna M ZickDepartment of Family Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA. szick@med.umich.edu
D Kim Turgeon
Shaiju K Vareed
Mack T Ruffin
Amie J Litzinger
Benjamin D Wright
Sara Alrawi
Daniel P Normolle
Zora Djuric
Dean E Brenner
Baylor College of Medicine · USUniversity of Michigan–Ann Arbor · US

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Jessie Nedrow · 1988 to 2026
$158.0M
MICHIGAN INSTITUTE FOR CLINICAL AND HEALTH RESEARCH (MICHR) (UL1): (BPCA)UL1RR024986 · NCRR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SHANLEY, THOMAS P. · 2007 to 2011
$51.2M
Ginger for Chemoprevention of Colorectal CancerK07CA102592 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ZICK, SUZANNA M. · 2005 to 2009
$749k
GORDON RESEARCH CONFERENCE ON MUTAGENESIS, 1988R13CA048592 · NCI · GORDON RESEARCH CONFERENCES · PI HUTCHINSON, FRANKLIN · 1988 to 1988
–
NCI NIH HHS K07 CA102592NCI NIH HHS K07CA102592NCI NIH HHS P30 CA047904NCI NIH HHS P30 CA 48592NCRR NIH HHS UL1 RR024986NCRR NIH HHS UL1RR024986
6 · The paper itself

Abstract

Inhibitors of COX indicate that upregulation of inflammatory eicosanoids produced by COX, and in particular prostaglandin E(2) (PGE(2)), are early events in the development of colorectal cancer (CRC). Ginger has shown downregulation of COX in vitro and decreased incidence/multiplicity of adenomas in rats. This study was conducted to determine if 2.0 g/d of ginger could decrease the levels of PGE(2), 13-hydroxy-octadecadienoic acids, and 5-, 12-, and 15-hydroxyeicosatetraenoic acid (5-, 12-, and 15-HETE), in the colon mucosa of healthy volunteers. To investigate this aim, we randomized 30 subjects to 2.0 g/d ginger or placebo for 28 days. Flexible sigmoidoscopy at baseline and day 28 was used to obtain colon biopsies. A liquid chromatography mass spectrometry method was used to determine eicosanoid levels in the biopsies, and levels were expressed per protein or per free arachidonic acid. There were no significant differences in mean percent change between baseline and day 28 for any of the eicosanoids, when normalized to protein. There was a significant decrease in mean percent change in PGE(2) (P = 0.05) and 5-HETE (P = 0.04), and a trend toward significant decreases in 12-HETE (P = 0.09) and 15-HETE (P = 0.06) normalized to free arachidonic acid. There was no difference between the groups in terms of total adverse events P = 0.55). On the basis of these results, it seems that ginger has the potential to decrease eicosanoid levels, perhaps by inhibiting their synthesis from arachidonic acid. Ginger also seemed to be tolerable and safe. Further investigation in people at high risk for CRC seems warranted.

Indexed as

AdultChromatography, LiquidColonColorectal NeoplasmsFemaleHumansHydroxyeicosatetraenoic AcidsMaleMiddle AgedPlant ExtractsPlant RootsPrognosisRisk FactorsSpectrometry, Mass, Electrospray IonizationYoung AdultZingiber officinaleHydroxyeicosatetraenoic AcidsPlant Extracts

Identifiers

PMID21990307
PMCPMC3208778
OpenAlexW2100751603

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.