Evidence map›Paper›PMID 34396785›Full record

SynthesisJournal of cutaneous medicine and surgery

The Impact of Acne Treatment on Skin Bacterial Microbiota: A Systematic Review.

Megan Lam, Angie Hu, Patrick Fleming, Charles W Lynde

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Journal of cutaneous medicine and surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Acne and the cutaneous microbiome: A systematic review of mechanisms and implications for treatments.Journal of the European Academy of Dermatology and Venereology : JEADV · 2025
    Pooled it
  2. Trial
  3. Review
  4. Phage-Derived Endolysins TargetingAntibiotics (Basel, Switzerland) · 2026
    Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. The Human Skin Microbiome in Selected Cutaneous Diseases.Frontiers in cellular and infection microbiology · 2022
    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

4 authors at 3 institutions in 1 country.

Megan Lam12362 Michael G. DeGroote School of Medicine, Faculty of Medicine, Hamilton, ON, Canada.ORCID https://orcid.org/0000-0001-5819-7684
Angie Hu2129 Faculty of Science, University of Calgary, AB, Canada.
Patrick Fleming210484 Division of Dermatology, University of Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-5695-6798
Charles W Lynde210484 Division of Dermatology, University of Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-9163-5463
University of Toronto · CAHamilton Health Sciences · CAUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMicrobial strains such as

objectivesTo characterize the impact of acne treatment on the diversity and relative abundance of the cutaneous microbial community, particularly of the bacterial flora.

methodsAn electronic search was conducted of Embase, MEDLINE, and the Cochrane Central Register of Controlled Trials (CENTRAL) on June 5, 2020. Interventional and observational studies examining patients receiving acne treatment with culture-independent, community-level analysis of the cutaneous microbiome were included.

resultsNine studies with 170 treated acne patients were included. Five studies reported a significant change in alpha diversity following treatment, 3 of which examining systemic antibiotics reported significant increases in diversity. Two of 3 studies examining effects of benzoyl peroxide reported a decrease in diversity. However, trends in diversity were heterogeneous among studies.

conclusionsWhile individual variability in microbiome composition, and study-level heterogeneity in study sampling techniques may limit quantitative synthesis, our results support findings that acne treatment, including those not considered to have antimicrobial properties, alters the composition of the cutaneous microbiome.PROSPERO registration: CRD42020190629.

Indexed as

Acne VulgarisAnti-Bacterial AgentsBenzoyl PeroxideDermatologic AgentsHumansMicrobiotaAnti-Bacterial AgentsBenzoyl PeroxideDermatologic Agentsacneantibioticscutibacteriummicrobiometreatment

Identifiers

PMID34396785
PMCPMC8750125
OpenAlexW3194372575

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.