Evidence map›Paper›PMID 17467345›Full record

ArticleJournal of cystic fibrosis : official journal of the European Cystic Fibrosis Society2007

Induction of cathelicidin in normal and CF bronchial epithelial cells by 1,25-dihydroxyvitamin D(3).

Sunghan Yim, Puneet Dhawan, Chandran Ragunath, Sylvia Christakos, Gill Diamond

2 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 141 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed, 5 pooled it
11.8field-weighted citation impact, top 1% 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.

NCT01372995 phase2completednot on this mapstarted 2011, after this paper: background citation

High-Dose Vitamin D and Antimicrobial Peptide Expression in Lung Failure

TypeinterventionalSponsorEmory UniversityRan2011 to 2014Enrolled31ConditionsRespiratory FailureArmsEnteral Vitamin D3 50,000 IU, Enteral Vitamin D3 100,000IU, Inactive substance
NCT04636086 phase4completednot on this mapstarted 2020, after this paper: background citation

Vitamin D Supplementation and Covid-19: a Randomised, Double- Blind, Controlled Study

TypeinterventionalSponsorUniversity of LiegeRan2020 to 2022Enrolled50ConditionsCovid19ArmsCholecalciferol, Placebo
3 · Its place in the literature

Who cites it

141 citing papers in PubMed, 5 syntheses or guidelines pooled it, 350 citations in OpenAlex.

  1. Pooled it
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  10. Impact of high-dose vitamin DNutrition (Burbank, Los Angeles County, Calif.) · 2017
    Trial
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  12. Randomized controlled trial of calcitriol in severe sepsis.American journal of respiratory and critical care medicine · 2014
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  14. Article
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  16. Combating Bacterial Infections with Vitamin D-Induced Antimicrobial Peptides.Advances in experimental medicine and biology · 2026
    Review
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  18. Immune Modulatory Effects of Vitamin D on Herpesvirus Infections.International journal of molecular sciences · 2025
    Review
  19. Review
  20. Article

81 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Sunghan YimDepartment of Oral Biology, UMDNJ-New Jersey Dental School, 185 South Orange Ave., Newark, NJ 07103, USA.
Puneet Dhawan
Chandran Ragunath
Sylvia Christakos
Gill Diamond
Rutgers, The State University of New Jersey · US

Funding

VITAMIN D HORMONE--FUNCTION AND MECHANISM OF ACTIONR01DK038961 · NIDDK · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI CHRISTAKOS, SYLVIA S · 1987 to 2010
$3.2M
Bacteria-host cell interactions in periodontal diseaseR01DE014897 · NIDCR · UNIV OF MED/DENT OF NJ-NJ DENTAL SCHOOL · PI DIAMOND, GILL · 2002 to 2005
$1.6M
Host-Pathogen Interactions in the Mammalian AirwayR01HL067871 · NHLBI · UNIV OF MED/DENT OF NJ-NJ DENTAL SCHOOL · PI DIAMOND, GILL · 2003 to 2006
$1.2M
NHLBI NIH HHS 1R01 HL67871NHLBI NIH HHS R01 HL067871NIDCR NIH HHS 1R01 DE14897NIDCR NIH HHS R01 DE014897NIDDK NIH HHS 5R01 DK38961NIDDK NIH HHS R01 DK038961
6 · The paper itself

Abstract

backgroundAntimicrobial peptides (AMPs) such as cathelicidins contribute to initial defense of the airway against inhaled pathogens. Recent studies have shown that the hormonally active form of vitamin D(3), 1,25-dihydroxyvitamin D(3) (1,25(OH)(2)D(3)) up-regulates AMP gene expression in several established cell lines. Furthermore, serum levels of vitamin D are often deficient in cystic fibrosis (CF) patients.

methodsWe investigated the effect of 1,25(OH)(2)D(3) on AMP mRNA levels in primary cultures of normal human bronchial epithelial (NHBE) cells by real-time PCR, and protein levels by Western blot. Antimicrobial activity of airway surface fluid from these cells was measured by in vitro assay against laboratory strains of bacteria.

resultsTreatment of NHBE cells with 1,25(OH)(2)D(3) (10(-8)M), resulted in a 10-fold up-regulation of cathelicidin mRNA levels after 12 h, which was augmented 2-fold with co-incubation of 1 mM Calcium. Moreover, 1,25(OH)(2)D(3) induced antimicrobial activity against the airway pathogens Bordetella bronchiseptica and Pseudomonas aeruginosa. 1,25(OH)(2)D(3) induced cathelicidin mRNA expression equally in both normal and CF bronchial epithelial cells.

conclusionsElucidation of the effect of 1,25(OH)(2)D(3) on cathelicidin expression in NHBE cells and CF bronchial epithelial cells will aid in the development of novel therapeutic agents for treatment of airway infections in CF.

Indexed as

Antimicrobial Cationic PeptidesCalcitriolCathelicidinsCell LineCystic FibrosisEpithelial CellsHumansRespiratory MucosaRNA, MessengerTissue Culture TechniquesUp-RegulationAntimicrobial Cationic PeptidesCalcitriolCathelicidinsRNA, Messenger

Identifiers

PMID17467345
PMCPMC2099696
OpenAlexW2068698172

What OpenQuestion holds

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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.