Evidence map›Paper›PMID 40572254›Full record

ArticleMicroorganisms2025

Comparative Analysis of Bacteriome in Hair Follicle Layers of Patients with Female Pattern Androgenic Alopecia.

Yujun Park, Seoyeon Kyung, Seyoung Mun, Byung Sun Yu, Kyengeui Yun, Chaeyun Baek, Dong-Geol Lee, Seunghyun Kang, Soon Re Kim, Ju-Hee Kim and 3 more

Abstract read
In one paragraph

Article in Microorganisms, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Review
  2. Review
  3. 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

13 authors.

Yujun ParkDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.ORCID 0000-0001-9431-0824
Seoyeon KyungR&I Center, COSMAX BTI, Pangyo-ro 255, Bundang-gu, Seongnam 13486, Republic of Korea.ORCID 0009-0003-0081-5453
Seyoung MunDepartment of Cosmedical & Materials, Dankook University, Cheonan 31116, Republic of Korea.ORCID 0000-0002-9669-4494
Byung Sun YuDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.
Kyengeui YunDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.
Chaeyun BaekR&I Center, COSMAX BTI, Pangyo-ro 255, Bundang-gu, Seongnam 13486, Republic of Korea.
Dong-Geol LeeDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.
Seunghyun KangR&I Center, COSMAX BTI, Pangyo-ro 255, Bundang-gu, Seongnam 13486, Republic of Korea.ORCID 0000-0002-9318-8318
Soon Re KimDepartment of Dermatology, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.
Ju-Hee KimDepartment of Dermatology, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.
Yeji LeeDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.
Byung-Cheol ParkDepartment of Dermatology, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.
Kyudong HanDepartment of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Republic of Korea.ORCID 0000-0001-6791-2408

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Androgenetic alopecia (AGA) is the most common form of patterned hair loss, exhibiting gender-specific clinical features. Recent studies highlight the importance of the skin microbiome in maintaining skin health, but the relationship between the hair follicle microbiome and hair loss, particularly AGA, remains understudied. Hair follicle layer samples were collected directly from the crown region of female pattern hair loss (FPHL), male pattern hair loss (MPHL), and healthy adult women (control) groups. Microbial DNA was extracted and analyzed using Illumina 16S rRNA V3-V4 gene amplicon sequencing. Alpha-diversity and beta-diversity analyses and taxonomic and functional profiling were conducted through relative abundance, LEfSe, and PICRUSt2 analyses. The alpha-diversity analysis showed a significant decrease in microbial richness in the hair loss groups. Unweighted UniFrac-based beta-diversity analysis revealed significant clustering between the control group and the FPHL group. Taxonomic profiling and LEfSe analysis identified differences in microbial composition and biomarkers. PICRUSt2 analysis further revealed altered pathways related to porphyrin metabolism, fatty acid biosynthesis, and steroid hormone metabolism. Additionally, differences in microbiome composition and potential functions were found between the FPHL and MPHL groups. This study provides comprehensive insights into the hair follicle microbiome, revealing unique microbial patterns and functional alterations associated with FPHL. Understanding these microbiome characteristics may contribute to targeted approaches for addressing AGA. Further research is warranted.

Indexed as

alopeciaandrogenetic alopeciafemale pattern hair losshair follicle layer microbiomemale pattern hair lossmicrobiome analysis

Identifiers

PMID40572254
PMCPMC12196301

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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.