PFAS曝露と小児腸炎との関連を解明(Mount Sinai Study Links Early-Life Exposure to PFAS (“Forever Chemicals”) With Childhood Intestinal Inflammation)

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2026-07-16 マウントサイナイ医療システム(MSHS)

マウントサイナイ・アイカーン医科大学の研究チームは、乳幼児期にPFAS(有機フッ素化合物、いわゆる「永遠の化学物質」)へ曝露されると、小児期の腸管炎症リスクが高まることを明らかにした。この研究では、出生コホートを対象に、乳幼児期のPFAS曝露量と炎症関連バイオマーカーや健康データを長期間追跡・解析した。その結果、PFAS濃度が高い子どもほど、腸管の炎症を示す指標が高値となる傾向が認められ、幼少期の環境化学物質への曝露が消化管の免疫機能や炎症反応に長期的な影響を及ぼす可能性が示された。PFASは環境中で極めて分解されにくく、飲料水や食品などを通じて広く人へ曝露されることが知られている。今回の成果は、PFASが小児の腸内環境や免疫系に及ぼす健康影響を示す新たな証拠となるものであり、曝露低減策や環境規制の強化、小児の健康リスク評価の改善に役立つことが期待される。

<関連情報>

幼少期のペルフルオロアルキル物質(PFAS)曝露は小児期の腸炎症と関連している:3つの出生コホートの分析 Per- and polyfluoroalkyl substances (PFAS) in early life is associated with childhood intestinal inflammation: analyses of three birth cohorts

Vishal Midya, Amith S. Maroli, Mellissa Picker, Georgia Dolios, Damaskini Valvi, Isabella Nguyen, Taegyu Kim, Alexa Rendon, Rosemary Chen, Kaitlyn Weinstein, Haibin Guan, Gary Joseph, Joseph Eggers, Libni A. Torres-Olascoaga, Rohitha Ravisekar, Bhargavi Srinath, Romana Ranchadiya, Syam S. Andra, David Achaintre, Chris Gennings, Martha M. Téllez-Rojo, Robert O. Wright, Manish Arora, Maria José Rosa, Megan Niedzwiecki, Joana Torres, Cecilia S. Alcala, Jamil M. Lane, Shoshannah Eggers, Jean-Frederic Colombel, Inga Peter, Lauren Petrick, Manasi Agrawal
Clinical Gastroenterology and Hepatology  Available online 10 July 2026
DOI:https://doi.org/10.1016/j.cgh.2026.07.001

PFAS曝露と小児腸炎との関連を解明(Mount Sinai Study Links Early-Life Exposure to PFAS (“Forever Chemicals”) With Childhood Intestinal Inflammation)

ABSTRACT

Background and aims
Early life exposures shape intestinal and immune development and later risk of inflammatory bowel disease (IBD). Per- and polyfluoroalkyl substances (PFAS), or forever chemicals, are associated with intestinal inflammation and IBD. However, the impact of early life PFAS exposure on later intestinal inflammation is not known.

Methods
We conducted untargeted PFAS analyses in early life samples from mother-offspring dyads across three cohorts. These included dried blood spots from offspring (n=84) and cord blood (n=93) from two prospective birth cohorts of mothers with and without IBD in New York, United States, and maternal serum during pregnancy (n=14) from a birth cohort in Mexico City, Mexico. Fecal calprotectin (FC), a biomarker of intestinal inflammation, was measured longitudinally in offspring stool. Covariate-adjusted weighted quantile sum regression models were used to estimate associations between PFAS and FC.

Results
PFAS metabolites were detected across all sample types. Higher levels of PFAS mixtures were associated with higher FC between 1 and 6 years of age in both dried blood spot and cord blood analyses (covariate-adjusted β estimates for change in log-transformed fecal calprotectin at age 6 years per decile increase in the PFAS mixture was 0.44, 95% CI 0.18, 0.70 and 0.69, 95% CI 0.53, 0.85, respectively) Similarly, higher levels of PFAS mixtures in maternal serum were associated with higher FC in late childhood (β 0.19, 95% CI 0.05, 0.33). Compared to mothers-offspring dyads without maternal IBD, those with maternal IBD were more likely to have higher perfluoro-1-octane sulfonamide acetic acid and 3-perfluorohexyl-2-hydroxypropyl acrylate levels in dried blood spots and cord blood, respectively; these PFAS metabolites were also the top contributors to offspring FC.

Conclusion
PFAS chemicals are detectable in early life samples, indicating exposure during this period of vulnerability, and are associated with higher FC in childhood across three birth cohorts.

医療・健康
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