Evidence map›Paper›PMID 27354249›Full record

ArticleScientific reports2016

Lactobacillus crispatus inhibits the infectivity of Chlamydia trachomatis elementary bodies, in vitro study.

Paola Nardini, Rogers Alberto Ñahui Palomino, Carola Parolin, Luca Laghi, Claudio Foschi, Roberto Cevenini, Beatrice Vitali, Antonella Marangoni

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 1 pooled it
11.0field-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

90 citing papers in PubMed, 1 synthesis or guideline pooled it, 119 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Anti-International journal of molecular sciences · 2026
    Review
  13. Article
  14. Review
  15. Disrupted Cervicovaginal Microbiota: Its Role inInternational journal of molecular sciences · 2025
    Review
  16. Review
  17. Bacterial vaginosis.Nature reviews. Disease primers · 2025
    Review
  18. Article
  19. Influence of cervicovaginal microbiota onMicrobial cell (Graz, Austria) · 2025
    Review
  20. Article

30 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

8 authors at 1 institution in 1 country.

Paola NardiniMicrobiology, DIMES, University of Bologna, Via Massarenti, 9, 40138, Bologna, Italy.
Rogers Alberto Ñahui PalominoDepartment of Pharmacy and Biotechnology, University of Bologna, Via San Donato, 19/2, 40127 Bologna, Italy.
Carola ParolinDepartment of Pharmacy and Biotechnology, University of Bologna, Via San Donato, 19/2, 40127 Bologna, Italy.
Luca LaghiCentre of Foodomics, Department of Agro-Food Science and Technology, University of Bologna, P.za Goidanich, 60, 47521, Cesena, Italy.
Claudio FoschiMicrobiology, DIMES, University of Bologna, Via Massarenti, 9, 40138, Bologna, Italy.
Roberto CeveniniMicrobiology, DIMES, University of Bologna, Via Massarenti, 9, 40138, Bologna, Italy.
Beatrice VitaliDepartment of Pharmacy and Biotechnology, University of Bologna, Via San Donato, 19/2, 40127 Bologna, Italy.
Antonella MarangoniMicrobiology, DIMES, University of Bologna, Via Massarenti, 9, 40138, Bologna, Italy.
University of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lactobacillus species dominate the vaginal microbiota of healthy reproductive-age women and protect the genitourinary tract from the attack of several infectious agents. Chlamydia trachomatis, a leading cause of sexually transmitted disease worldwide, can induce severe sequelae, i.e. pelvic inflammatory disease, infertility and ectopic pregnancy. In the present study we investigated the interference of Lactobacillus crispatus, L. gasseri and L. vaginalis, known to be dominant species in the vaginal microbiome, with the infection process of C. trachomatis. Lactobacilli exerted a strong inhibitory effect on Chlamydia infectivity mainly through the action of secreted metabolites in a concentration/pH dependent mode. Short contact times were the most effective in the inhibition, suggesting a protective role of lactobacilli in the early steps of Chlamydia infection. The best anti-Chlamydia profile was shown by L. crispatus species. In order to delineate metabolic profiles related to anti-Chlamydia activity, Lactobacillus supernatants were analysed by (1)H-NMR. Production of lactate and acidification of the vaginal environment seemed to be crucial for the activity, in addition to the consumption of the carbonate source represented by glucose. The main conclusion of this study is that high concentrations of L. crispatus inhibit infectivity of C. trachomatis in vitro.

Indexed as

AntibiosisChlamydia trachomatisCulture Media, ConditionedFemaleHumansHydrochloric AcidIn Vitro TechniquesLactic AcidLactobacillusLactobacillus crispatusLactobacillus gasseriNuclear Magnetic Resonance, BiomolecularSpecies SpecificityVaginaCulture Media, ConditionedHydrochloric AcidLactic Acid

Identifiers

PMID27354249
PMCPMC4926251
OpenAlexW2472593811

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.