Hepatotoxicity of OBS: A review of the emerging PFOS substitute.
Haibo Jin, Mingyue Wang, Ting Tian et al.
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In 30 seconds
This systematic review evaluates the hepatotoxic effects of sodium perfluorononenyl oxobenzene sulfonate (OBS), an alternative to PFOS, across various studies. It highlights that OBS consistently induces liver damage, including hepatomegaly and elevated serum transaminases. The review emphasizes the need for further research on chronic exposure risks and upstream epigenetic mechanisms.
Key findings
- OBS exposure leads to hepatomegaly and elevated serum transaminases.
- In vitro studies show OBS reduces cell viability and triggers necrosis.
- Mechanisms of toxicity include oxidative stress and inflammatory signaling.
- Most studies focus on subacute exposure, lacking chronic risk assessments.
Why it matters
Understanding the hepatotoxic effects of OBS is crucial for assessing its safety as a PFOS substitute. Clinicians should be aware of potential liver injury risks associated with environmental and occupational exposure to this compound.
What to keep in mind
The review primarily addresses subacute or subchronic exposure, leaving a gap in chronic risk assessment.