Evidence map›Paper›PMID 21724580›Full record

Trial reportCancer prevention research (Philadelphia, Pa.)2011

Effects of supplemental vitamin D and calcium on biomarkers of inflammation in colorectal adenoma patients: a randomized, controlled clinical trial.

Myfanwy H Hopkins, Joy Owen, Thomas Ahearn, Veronika Fedirko, W Dana Flanders, Dean P Jones, Roberd M Bostick

Registry-linked trialOpen access · bronzeAbstract readRandomized 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 NCT00208793 (Calcium, Vitamin D, and Colon Cancer Risk Biomarkers), which is not on this map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 2% 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.

NCT00208793 phase2completednot on this map

Calcium, Vitamin D, and Colon Cancer Risk Biomarkers

TypeinterventionalSponsorEmory UniversityRan2005 to 2013Enrolled92ConditionsColorectal Adenomatous PolypsArmsCalcium and vitamin D3 combined, Placebo, Calcium, Vitamin D3
3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 137 citations in OpenAlex.

  1. Pooled it
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  6. Changes in Mineral Micronutrient Status During and After Pulmonary Exacerbation in Adults With Cystic Fibrosis.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2015
    Trial
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  13. Review
  14. Associations between Calcium Intake and T-cell Infiltration in Colorectal Tumors.Cancer prevention research (Philadelphia, Pa.) · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. A Single Oral Vitamin DInternational journal of molecular sciences · 2022
    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

7 authors at 2 institutions in 1 country.

Myfanwy H HopkinsDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
Joy Owen
Thomas Ahearn
Veronika Fedirko
W Dana Flanders
Dean P Jones
Roberd M Bostick
Winship Cancer InstituteEmory University · US

Funding

Calcium, Vitamin D, and Colon Cancer Risk BiomarkersR01CA104637 · NCI · EMORY UNIVERSITY · PI BOSTICK, ROBERD MANER · 2004 to 2005
$565k
Vitamin D/Calcium and Oxidative Stress and Inflammation BiomarkersR03CA136113 · NCI · EMORY UNIVERSITY · PI BOSTICK, ROBERD MANER · 2009 to 2010
$155k
NCI NIH HHS R01 CA104637NCI NIH HHS R03 CA136113
6 · The paper itself

Abstract

Vitamin D and calcium affect several pathways involved in inflammation, tumor growth, and immune surveillance relevant to carcinogenesis. Also, epidemiologic evidence indicates that calcium and vitamin D may reduce risk for developing colorectal adenomas and cancer. To investigate the effects of calcium and vitamin D on biomarkers of inflammation in colorectal adenoma patients, we conducted a pilot, randomized, double-blind, placebo-controlled, 2 × 2 factorial clinical trial (n = 92) of 2 g/d calcium and/or 800 IU/d vitamin D(3) supplementation versus placebo over 6 months. Plasma concentrations of proinflammatory markers [C-reactive protein (CRP), TNF-α, interleukin (IL)-6, IL-1β, and IL-8] and an anti-inflammatory marker (IL-10) were measured using ELISAs. After 6 months of treatment, in the vitamin D(3) supplementation group, CRP decreased 32% overall (P = 0.11), 37% in men (P = 0.05), and 41% among non-nonsteroidal anti-inflammatory drug (NSAID) users (P = 0.05) relative to placebo. In the vitamin D(3) supplementation group, TNF-α decreased 13%, IL-6 32%, IL-1β 50%, and IL-8 15%; in the calcium supplementation group, IL-6 decreased 37%, IL-8 11%, and IL-1β 27%. Although these changes were not statistically significant, a combined inflammatory markers z-score decreased 77% (P = 0.003) in the vitamin D(3) treatment group overall, 83% (P = 0.01) among men, and 48% among non-NSAID users (P = 0.01). There was no evidence of synergy between vitamin D(3) and calcium or effects on IL-10. These preliminary results are consistent with a pattern of reduction in tumor-promoting inflammation biomarkers with vitamin D(3) or calcium supplementation alone and support further investigation of vitamin D(3) as a chemopreventive agent against inflammation and colorectal neoplasms.

Indexed as

Dietary SupplementsAdultAgedBiomarkers, TumorCalciumColorectal NeoplasmsDouble-Blind MethodEnzyme-Linked Immunosorbent AssayFemaleFollow-Up StudiesHumansImmunoenzyme TechniquesInflammation MediatorsMaleMiddle AgedPrognosisBiomarkers, TumorCalciumInflammation MediatorsVitamin D

Identifiers

PMID21724580
PMCPMC3188339
OpenAlexW2105494350

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.