“永遠の化学物質”曝露が妊娠糖尿病リスクを増加させることを発見(Exposure to “Forever Chemicals” Linked to Higher Risk of Gestational Diabetes, Major Review Finds)

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2026-01-14 マウントサイナイ医療システム(MSHS)

米国マウントサイナイ医科大学の研究者らは、いわゆる「永遠の化学物質」と呼ばれるPFAS(有機フッ素化合物)への曝露が、妊娠糖尿病の発症リスク上昇と関連することを示す包括的レビュー研究を発表した。PFASは撥水・耐熱性を持ち、調理器具や衣類、食品包装などに広く使用されてきたが、環境中や体内で分解されにくい特性を持つ。本研究では、これまでに発表された多数の疫学研究を統合解析し、妊娠中のPFAS曝露がインスリン抵抗性や糖代謝異常を引き起こし、妊娠糖尿病のリスクを高める可能性が高いと結論づけた。妊娠糖尿病は母体・胎児双方の健康に長期的影響を及ぼすため、PFAS曝露低減策や公衆衛生上の規制強化の重要性が示唆されている。

<関連情報>

パーフルオロアルキルおよびポリフルオロアルキル化合物と血糖コントロール、インスリン分泌および感受性、糖尿病リスクのマーカーとの関連:系統的レビューおよびメタアナリシス Associations of perfluoroalkyl and polyfluoroalkyl substances with markers of glycaemic control, insulin secretion and sensitivity, and diabetes risk: a systematic review and meta-analyses

Sandra India Aldana ∙ Xin Yu ∙ Meizhen Yao ∙ Nathan Cohen ∙ Eftychia Markopoulou ∙ Maanal Chowdhury ∙ et al.
eClinicalMedicine  Published: January 12, 2026
DOI:https://doi.org/10.1016/j.eclinm.2025.103747

“永遠の化学物質”曝露が妊娠糖尿病リスクを増加させることを発見(Exposure to “Forever Chemicals” Linked to Higher Risk of Gestational Diabetes, Major Review Finds)

Summary

Background

Growing literature examines the impact of per- and polyfluoroalkyl substances (PFAS) on diabetes risk. We aimed to conduct a comprehensive systematic review and meta-analysis of epidemiological studies to characterize the associations of exposures to PFAS with markers of glycemic control, insulin resistance, pancreatic β-cell function, and diabetes risk.

Methods

A systematic search of epidemiological articles published through July 21, 2025 was conducted by two researchers in PubMed/MEDLINE and Ovid/EMBASE following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Experimental studies were excluded from our review. Reported findings were extracted from published articles. Risk of bias was evaluated using the Navigation Guide. Random-effects meta-analyses stratified by study design estimated PFAS associations with gestational diabetes mellitus (GDM), type 2 diabetes (T2D), and continuous measures of Homeostatic Model Assessment for Insulin Resistance (HOMA-IR), HOMA-β, fasting insulin, fasting glucose, and hemoglobin A1c (HbA1c). This study was registered in PROSPERO (CRD42022369711).

Findings

Out of 738 records retrieved, we identified 129 eligible studies. Most studies focused on GDM (n = 25) and/or T2D (n = 36), while three focused on type 1 diabetes (T1D). Participant numbers ranged from n = 40 to n = 1,331,541 in the systematic review and from n = 399 to n = 111,544 in the meta-analyses. We found consistent associations between 8 different PFAS and higher odds of GDM across prospective and other study designs, including PFOS [n = 8, OR (95%CI) per doubling PFOS increase: 1.13 (1.01, 1.26), I2 = 0.0%] among other PFAS. We also found positive associations between several legacy PFAS such as PFOS with HOMA-IR [(n = 8), β (95%CI): 0.06 (0.01, 0.12), I2 = 0.0%] and fasting insulin [n = 5, β (95% CI) in μU/mL: 0.23 (0.06, 0.40), I2 = 0.0%] in prospective studies, and HOMA-β in cross-sectional studies [(n = 6), β (95% CI): 5.93 (1.72, 10.2), I2 = 67.0%], among other. Less consistent or null associations were with T2D, fasting glucose, and HbA1c. The evidence was of low-moderate quality and limited strength. Most studies were categorized as low risk of bias for other criteria, except for study design (cross-sectional).

Interpretation

Evidence from observational studies supports PFAS associations with higher odds of GDM and increased markers of insulin resistance and secretion. PFAS associations with established T2D or T1D remain to be elucidated, as evidence is still limited and effect sizes for some continuous diabetes markers were small and should be interpreted with caution. Larger life-course prospective studies with greater representation of well-characterized cases and evaluating emerging PFAS and mixtures are needed to fully capture the potential PFAS impacts on diabetes.

Funding

National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS).

医療・健康
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