Showing 61-75 of 328
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Association between per- and polyfluoroalkyl substances and sex hormone levels in males based on human studies
Science
22 Jan 2024 | Ecotoxicol Environ Saf
In a meta-analysis of 12 studies involving 7506 participants, exposure to PFNA and PFOA was found to be negatively correlated with male testosterone levels, emphasizing the need to consider these chemicals as potential risk factors for male reproductive health.
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Occurrence of Major Perfluorinated Alkylate Substances in Human Blood and Target Organs
Science
28 Dec 2023 | Environ Sci Technol
PFAS levels in the liver correlated well with other organs, supporting the use of blood concentrations as a measure of PFAS exposure and suggesting the liver as the primary organ of PFAS retention, with minor variations observed in other organs.
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Associations of a Prenatal Serum Per- and Polyfluoroalkyl Substance Mixture with the Cord Serum Metabolome in the HOME Study
Science
13 Dec 2023 | Environ Sci Technol
Prenatal exposure to a mixture of PFAS in mothers is linked to alterations in infant metabolic pathways, which can result in birthweight or vaccine response abnormalities.
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Associations of Prenatal Per- and Polyfluoroalkyl Substance (PFAS) Exposures with Offspring Adiposity and Body Composition at 16-20 Years of Age: Project Viva
Science
6 Dec 2023 | Environ Health Perspect
Prenatal exposure to PFAS impacted the body weight and composition of teenagers, finding that higher concentrations of these substances were associated with an increased risk of obesity and altered BMI trajectories during late adolescence.
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Prenatal exposure to Per-and polyfluoroalkyl substances and adiposity measures of children at 4 and 6 years: A prospective birth cohort in China
Science
1 Dec 2023 | Ecotoxicol Environ Saf
Exposure to PFAS during pregnancy was linked to increased adiposity in Chinese children at ages 4 and 6, with a stronger impact on measures like arm circumference and waist circumference, particularly among girls.
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Association between probiotic consumption and serum perfluoroalkyl and polyfluoroalkyl substances (PFAS): results from NHANES, 2003–2018
Science
28 Nov 2023 | Environ. Sci. Eur.
The consumption of probiotics through yogurt or supplements is associated with lower levels of certain PFAS, suggesting potential health benefits.
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Comparison of Serum PFAS Concentrations in Incumbent and Recruit Firefighters and Longitudinal Assessment in Recruits
Science
28 Nov 2023 | J Occup Environ Med
Incumbent firefighters had lower n-PFOA and PFNA than recruits and most PFAS significantly decreased over time among male recruits, suggesting that firefighting activities may not increase PFAS exposure.
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Characterizing the Movement of Per-and Polyfluoroalkyl Substances in an Avian Aquatic–Terrestrial Food Web
Science
24 Nov 2023 | Environ. Sci. Technol.
Tree swallow nestlings were found to feed on both terrestrial and aquatic macroinvertebrates, leading to the bioaccumulation and biomagnification of PFAS, particularly PFOS, highlighting the complex and chemical-specific movement of PFAS through linked aquatic-terrestrial food webs.
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Per- and poly-fluoroalkyl substances in commercial organic eggs via fishmeal in feed
Science
7 Nov 2023 | Chemosphere
Organic eggs from certain farms in Denmark were found to contain elevated levels of PFAS originating from fishmeal used in organic feed, leading to the voluntary removal of fishmeal from the feed by producers to mitigate PFAS exposure.
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Chemical crisis: The unseen toxic threat contaminating wildlife worldwide
News
28 Oct 2023 | The Hill
An unseen but growing chemical contamination crisis is threatening wildlife across all seven continents, exacerbating a host of environmental threats they’re already facing.
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Trends in Serum Per-and Polyfluoroalkyl Substance (PFAS) Concentrations in Teenagers and Adults, 1999–2018 NHANES
Science
27 Oct 2023 | Int. J. Environ. Res. Public Health
Some longer chain PFAS levels in serum have decreased over time, however they are still detected in drinking water and consumer products, with certain racial/ethnic groups showing differing levels of exposure, highlighting the need for continued monitoring.
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Is it raining PFAS in France? An analysis of 52 PFAS at ng/L levels in French rainwaters during Autumn season
Science
27 Oct 2023 | J Environ Qual
This study analyzed rainwater in France for PFAS and detected the presence of PFNA, PFUnA, and PFHxA while also emphasizing the importance of environmental surveillance and improved analysis methods.
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Per- and Polyfluoroalkyl Substances (PFAS) in PubChem: 7 Million and Growing
Science
23 Oct 2023 | Environ. Sci. Technol.
The Organisation for Economic Co-operation and Development's 2021 revision of the PFAS definition has led to the inclusion of over 7 million PFAS compounds in PubChem.
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Metabolic Perturbations Associated with an Exposure Mixture of Per-and Polyfluoroalkyl Substances in the Atlanta African American Maternal-Child Cohort
Science
19 Oct 2023 | Environ Sci Technol
Prenatal exposure to a mixture of PFAS chemicals, including PFOA, PFNA, PFOS, and PFHxS, is associated with significant metabolic perturbations indicative of systemic inflammation and oxidative stress in pregnant African-American women, highlighting the importance of considering the joint effects of these chemicals on human health.
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Serum concentrations of per- and polyfluoroalkyl substances and risk of renal cell carcinoma in the Multiethnic Cohort Study
Science
14 Sep 2023 | Environ. Int.
Researchers found a significant positive correlation between PFNA and renal cell carcinoma risk, particularly in African American participants but also in Native Hawaiian and White participants.