Publications by authors named "Evane Thorel"
The intensive use of sunscreen products has raised concerns regarding their environmental toxicity and the adverse impacts of ultraviolet (UV) filters on ecologically important coral communities. Prior metabolomic analyses on symbiotic coral exposed to the UV filter butyl methoxydibenzoylmethane (BM, avobenzone) revealed unidentified ions in the holobiont metabolome. In the present study, follow-up differential metabolomic analyses in BM-exposed detected 57 ions with significantly different relative concentrations in exposed corals.
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- The study investigated how octocrylene affects coral, revealing that exposure leads to the accumulation of octocrylene derivatives and changes in tissue concentration of various compounds indicating stress.
- Increases in acylcarnitines and sphingoid bases suggest mitochondrial dysfunction and cellular aging processes in corals exposed to this pollutant.
- The findings indicate that octocrylene could have broader environmental impacts on multiple reef-building species, and that the extent of its contamination in the food chain might be underestimated.
Metabolomic profiling of the hexacoral Pocillopora damicornis exposed to solar filters revealed a metabolomic signature of stress in this coral. It was demonstrated that the concentration of the known steroid (3β, 5α, 8α) -5, 8-epidioxy- ergosta- 6, 24(28) - dien- 3- ol (14) increased in response to octocrylene (OC) and ethylhexyl salicylate (ES) at 50 µg/L. Based on the overall coral response, we hypothesize that steroid 14 mediates coral response to stress.
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- Pharmaceutical and personal care product (PPCP) residues are increasingly contaminating aquatic environments through gray water, posing risks to ecosystems and public health.
- The study investigates the toxicity of nine UV filters on marine autotrophs and heterotrophs, finding homosalate (HS) and octocrylene (OC) to be the most toxic, while other compounds had minimal or no effect.
- Alarmingly, OC and HS were tested at concentrations significantly higher than those typically found in aquatic systems, indicating a potential future risk to marine life as these chemicals become more prevalent.