2026年1月17日 星期六

全氟和多氟烷基物質, Polyfluoroalkyl Substances, PFAS

 

Substance

PFASPer- and Polyfluoroalkyl Substances[1].

一大類人工合成含氟有機化合物,具高度化學穩定性與生物累積性

常見代表:PFOAPerfluorooctanoic acid,PFOSPerfluorooctane sulfonate[1]

 

Common Name(常見名稱)

 

全氟/多氟烷基物質

永久化學物(Forever chemicals

防水、防油、防污塗層化學品 [2]

列管物質:台灣已將 PFOAPFOSLPOSPOSFPFHxS 等列為毒性或關注化學物質,有條件開放用途,如半導體、特定紡織品、滅火器等。

廣泛存在:市面上仍有許多未列管的PFAS種類流通,用於食品包裝、紡織品、化妝品、工業用途等,因其防水、防油特性。

台灣市售的許多隱形眼鏡都可能含有PFAS(全氟/多氟烷基物質)這類有機氟化物,主要用於提升鏡片光滑度、防止蛋白附著; 雖然專家認為從眼球進入體內的機會不大且致癌性未定,台灣消費者不必過度恐慌,但應關注,並追蹤 國際研究及美國 FDA 等單位對安全性的認定

 

Involving System(影響系統)

 

Multisystem, predominantly chronic effects

Liver: Elevated liver enzymes and hepatic steatosis [1]

Endocrine/Metabolic: Thyroid dysfunction and dyslipidemia [3] [4]

Immune system: Reduced vaccine antibody responses and immunosuppression [5]

Reproductive and developmental: Infertility, low birth weight, and developmental delay

                      increased FSH and decreased AMH, estradiol, and progesterone. [6]

Kidneys: Increased risk of chronic kidney disease [7].

Cardiovascular: Hypercholesterolemia and increased risk of atherosclerosis [4]

 

 

Presentation(臨床表現)

 

Acute exposure:

Mostly no obvious acute symptoms

Chronic exposure (common):

Asymptomatic with laboratory abnormalities:

ALT / AST [1]

Long-term epidemiological associations:

Metabolic syndrome [8]

Chronic kidney disease (CKD)[8]

Impaired immune function [5]

 

Antidote(解毒劑)

 

No specific antidote

Management principles:

Cessation of exposure (most important)

Supportive care

Investigational strategies (non-standard treatments):

Cholestyramine / bile acid sequestrants: may enhance elimination via interruption of Cholestyramine treatment led to a 23.1-fold increase in serum-adjusted fecal PFOS excretion. [9], 1 week 1 pack qd-bid ac

Over a 12-week period, colesevelam intervention reduced serum PFOS levels by an average of 38%, significantly outperforming the 2% decline observed in the control group [9]

Hemodialysis: does not work (largely ineffective for PFAS due to high protein binding)

 

Disposition(處置與去向)

                  Emergency department:

o    Asymptomatic or mildly symptomatic → outpatient follow-up

o    Routine hospitalization or gastric lavage is not required

Outpatient care / follow-up:

o    For individuals with occupational or environmental exposure:

§  Regular monitoring of:

§  Liver function

§  Lipid profile

§  Thyroid function

§  Renal function

o    Notify environmental or occupational medicine authorities (e.g., in cases of clustered exposure)

 

References

[1]. https://pubmed.ncbi.nlm.nih.gov/41543329/

[2]. https://pubmed.ncbi.nlm.nih.gov/41181096/

[3]. https://pubmed.ncbi.nlm.nih.gov/41391234/

[4]. https://pubmed.ncbi.nlm.nih.gov/41428216/

[5]. https://pubmed.ncbi.nlm.nih.gov/41456666/

[6]. https://pubmed.ncbi.nlm.nih.gov/41465861/

[7]. https://pubmed.ncbi.nlm.nih.gov/41440749/

[8]. https://pubmed.ncbi.nlm.nih.gov/40609416/

[9]. https://pubmed.ncbi.nlm.nih.gov/40974835/


Edited by Yu-Jang Su   Jan 17, 2026  

 

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