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ORIGINAL RESEARCH article

Front. Microbiol.

Sec. Microbial Symbioses

Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1504054

Analysis of Microbial Composition in Different Dry Skin Areas of Beijing Women

Provisionally accepted
Jingtao  WangJingtao Wang1Benyue  LiBenyue Li2Yuanman  ZhangYuanman Zhang1Wei  MaWei Ma1Ting  JiaTing Jia1Jie  YangJie Yang2Yexiang  ZhangYexiang Zhang2Fengwei  QiFengwei Qi2Yan  JiaYan Jia1Liya  SongLiya Song1*
  • 1北京工商大学, 北京市, China
  • 2Shandong Huahuitang Biotechnology Co., Ltd., shanghai, China

The final, formatted version of the article will be published soon.

The composition of the skin microbiota is shaped by the interaction of multiple factors, with area-specific changes and physiological characteristics in the skin having the most profound impact. The back of the hand and lower leg are two dry areas of human skin. Whether their microbial compositions are consistent, as well as the changes in skin microbiota at these two areas among individuals with dry skin, warrant further discussion. In this study, 16S rRNA sequencing technology was used to analyze the differences of microbiota in dry skin areas of 54 young women and their changes in dry populations. Analysis of physiological parameters showed that Hydration, TEWL and sebum secretion were significantly lower (P < 0.05) in the lower leg compared to the back of the hand. Hydration was significantly lower (P < 0.05) at the same skin area in the dry-skinned population compared to the healthy population. Regarding microbial composition, the relative abundance of Firmicutes and Proteobacteria was significantly higher on the lower leg compared to the back of the hand, whereas the relative abundance of Actinobacteriota was notably greater on the back of the hand than on the lower leg.(P < 0.05). Compared to the lower leg, the back of the hand showed a higher relative abundance of Cutibacterium (34.19% vs. 8.68%) , whereas the lower leg was predominantly colonised by Streptococcus (17% vs. 13.76%) . At the genus level, the relative abundance of Streptococcus was significantly increased in the dry skin group, whereas a decreasing trend was observed for Cutibacterium . Redundancy analysis (RDA) showed that Streptococcus was negatively correlated with Hydration, TEWL, and sebum, and vice versa for Cutibacterium. These findings suggest that differences in skin microbiota are primarily influenced by a combination of skin area microenvironmental factors and not solely dependent on dryness status, suggesting that area-specific ecological niche design should be taken into account when conducting clinical interventions.

Keywords: Dry skin, Women, Skin microbiota, Hand, Lower leg

Received: 01 Oct 2024; Accepted: 16 Jun 2025.

Copyright: © 2025 Wang, Li, Zhang, Ma, Jia, Yang, Zhang, Qi, Jia and Song. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Liya Song, 北京工商大学, 北京市, China

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