乳幼児の皮膚常在菌叢と早期曝露との関連性
Conor Broderick1, Casper Sahl Poulsen2, Mathis Hjort Hjelmsø2
1Unit for Paediatric & Population-Based Dermatology Research, St John's Institute of Dermatology, King's College London and Guy's & St Thomas' Hospitals, London, UK.
The British journal of dermatology
|January 16, 2026
まとめ
乳幼児の皮膚常在菌叢の組成は、年齢、体の部位、民族性、衛生習慣などの要因によって影響を受ける。また、皮膚バリア機能や早期のアトピー性皮膚炎の発症とも関連している。
科学分野:
- 微生物学;皮膚科学;遺伝学
- Area_of_Science
背景:
- アトピー性皮膚炎(AD)における早期の皮膚常在菌叢の役割は十分に理解されていません。;乳幼児の皮膚常在菌叢に影響を与える要因を特定するための研究が必要です。
- Background
研究 の 目的:
- 生後1年間における乳幼児の皮膚常在菌叢と様々な要因との関連性を調査すること。;皮膚常在菌叢とアトピー性皮膚炎の発症との関係を探ること。
- Purpose_of_the_Study
主な方法:
- Enquiring About Tolerance(EAT)出生コホートから148人の乳幼児を対象に研究を行いました。;生後3か月と1歳で皮膚スワブを採取し、16S rRNA遺伝子配列決定を行いました。;AD、TEWL、フィラグリンの状態、環境要因に関するデータを収集しました。
- Main_Methods
主要な成果:
- 体の部位や年齢によって常在菌叢の組成は大きく異なりました。;人種、フィラグリンの状態、居住地、兄弟姉妹の有無、入浴製品などが常在菌叢と関連していました。;皮膚常在菌叢は、経表皮水分喪失量(TEWL)の増加およびアトピー性皮膚炎(AD)の同時発症と相関し、特定の細菌(例:Streptococcus parasanguinis)はADを有する乳幼児ではより少ないことがわかりました。
- Main_Results
結論:
- 乳幼児の皮膚常在菌叢の発達は、内的要因(年齢、遺伝)と外的要因(環境、衛生)の組み合わせによって影響されます。;皮膚常在菌叢は、皮膚バリア機能およびアトピー性皮膚炎の病因と密接に関連しています。
- Conclusions
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