Evidence map›Paper›PMID 18077362›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Molecular identification of bacteria in bronchoalveolar lavage fluid from children with cystic fibrosis.

J Kirk Harris, Mary Ann De Groote, Scott D Sagel, Edith T Zemanick, Robert Kapsner, Churee Penvari, Heidi Kaess, Robin R Deterding, Frank J Accurso, Norman R Pace

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 194 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
194citing papers in PubMed, 1 pooled it
17.1field-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.

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

194 citing papers in PubMed, 1 synthesis or guideline pooled it, 368 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Clinical features ofFrontiers in cellular and infection microbiology · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Respiratory medicine case reports · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. The presence of cystic fibrosis-related diabetes modifies the sputum microbiome in cystic fibrosis disease.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

134 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

10 authors at 1 institution in 1 country.

J Kirk HarrisDepartment of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA.
Mary Ann De Groote
Scott D Sagel
Edith T Zemanick
Robert Kapsner
Churee Penvari
Heidi Kaess
Robin R Deterding
Frank J Accurso
Norman R Pace
University of Colorado Boulder · US

Funding

ZORVIRAX ORAL SUSPENSION FOR SEVERE CHILDHOOD HERPES VIRUS INFECTIONSM01RR000069 · NCRR · UNIVERSITY OF COLORADO DENVER · PI KRUGMAN, RICHARD D. · 1985 to 2008
$22.1M
LABORATORY COREU01HL081335 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI ABMAN, STEVEN HERBERT · 2005 to 2008
$4.1M
NCRR NIH HHS M01 RR000069NCRR NIH HHS M01 RR00069NHLBI NIH HHS U01 HL081335
6 · The paper itself

Abstract

Culture of bronchoalveolar lavage fluid (BALF) is the gold standard for detection of pathogens in the lower airways in cystic fibrosis (CF). However, current culture results do not explain all clinical observations in CF, including negative culture results during pulmonary exacerbation and inflammation in the absence of pathogens. We hypothesize that organisms not routinely identified by culture occur in the CF airway and may contribute to disease. To test this hypothesis we used a culture-independent molecular approach, based on use of rRNA sequence analysis, to assess the bacterial composition of BALF from children with CF and disease controls (DC). Specimens from 42 subjects (28 CF) were examined, and approximately 6,600 total clones were screened to identify 121 species of bacteria. In general, a single rRNA type dominated clone libraries from CF specimens, but not DC. Thirteen CF subjects contained bacteria that are not routinely assessed by culture. In four CF subjects, candidate pathogens were identified and include the anaerobe Prevotella denticola, a Lysobacter sp., and members of the Rickettsiales. The presumptive pathogens Tropheryma whipplei and Granulicatella elegans were identified in cases from the DC group. The presence of unexpected bacteria in CF may explain inflammation without documented pathogens and consequent failure to respond to standard treatment. These results show that molecular techniques provide a broader perspective on airway bacteria than do routine clinical cultures and thus can identify targets for further clinical evaluation.

Indexed as

AdolescentAdultBacteriaBronchoalveolar Lavage FluidChildChild, PreschoolCystic FibrosisDNA, BacterialFemaleGenes, BacterialGenes, rRNAHumansInfantLung DiseasesMaleMolecular Sequence DataDNA, Bacterial

Identifiers

PMID18077362
PMCPMC2154465
OpenAlexW2088620429

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.