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Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BackgroundPrevious studies have shown that bisphenol A exposure is associated with the risk of hypertension; however, most of them are cross-sectional and the conclusions are not consistent. ObjectiveTo evaluate the association between bisphenol A exposure and the incident risk of hypertension. MethodsBased on a nested case-control design involving 1990 subjects derived from the Dongfeng-Tongji cohort, a total of 1080 subjects were included in this study after excluding 887 hypertensive cases at baseline and 23 subjects with missing blood pressure data in follow-up visits. Epidemiological information was collected through questionnaire survey, and serum bisphenol A concentration was detected by high performance liquid chromatography tandem mass spectrometry. Logistic regression model was used to analyze the potential association between serum bisphenol A level and the risk of hypertension incidence, and linear regression model was used to analyze the association between serum bisphenol A level and blood pressure changes between baseline and follow-up. ResultsThe average age of the 1 080 participants was (62.03±7.45) years, of which 41.1% were male. During the follow-up period, a total of 477 (44.2%) developed hypertension. The median serum concentration of bisphenol A in the total population was 3.15 μg·L−1, and the baseline bisphenol A concentration in the new case group (3.24 μg·L−1) was higher than that in the control group (2.98 μg·L−1) (P0.05). ConclusionBisphenol A exposure is positively associated with the risk of hypertension.

As one of the most widely used plasticizers, BPA is often used in various types of food packaging. However, the leaching of BPA from food and water and the emission of BPA in the manufacturing process can harm human health. In recent years, carbon-based composites have shown excellent performance in the detection of BPA due to their unique physical and chemical properties. The rapid detection of BPA by electrochemical sensors based on carbon-based composites has become a research hotspot. This article provides an overview of BPA and the application of carbon-based materials modified electrochemical sensors in the detection of BPA, as well as prospects for the development direction of electrochemical detection of BPA.

The consumption of bisphenol A (BPA) in China has been steadily increasing as a popular plastic additive. However, it is also recognized as a typical environmental endocrine disruptor. Even at low concentrations, prolonged exposure to BPA can lead to neurotoxicity, liver toxicity, reproductive toxicity, immunotoxicity and other adverse effects, contributing to various diseases such as diabetes, inflammation, obesity, anxiety, depression and even cancer. In recent years, BPA has been detected in various environmental water bodies in China due to water pollution caused by industrial development and plastic waste discharge. Furthermore, the level of BPA exposure in each water sample varies depending on geographic regions, seasonal temperature variations, and other factors. This paper presents the latest research advancements in understanding the multiple toxic effects and strategies for mitigating the toxicity of BPA. It also provides a comprehensive summary of BPA pollution levels in various environmental water bodies in China over the past decade, along with an analysis and discussion of influencing factors. The aim is to offer valuable insights for studying population exposure doses and health risks associated with BPA. [ABSTRACT FROM AUTHOR]

Copyright of Journal of South China Normal University (Natural Science Edition) / Huanan Shifan Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of South China Normal University (Natural Science Edition) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food & Machinery is the property of Food & Machinery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bisphenol A (BPA) is one of the highly produced chemicals globally and extensively utilized in the manufacturing of plastic products. However, the widespread application of BPA has led to its frequent detection in aquatic environments, posing potential threats to the health of aquatic organisms. Previous studies have confirmed the reproductive and developmental toxic effects of BPA on various aquatic organisms; however, limited research exists regarding its impact on bivalve shellfish. In this study, clams ( Meretrix petechialis) were exposed to concentrations of 1, 10, and 100 μg·L-1 BPA for 14 d. The filtration rate of gill water and histopathological changes were examined while expression levels of genes in the Nrf2/Keap1 signaling pathway and the enzymatic activity, including the hydrogen peroxide (H2O2) and malondialdehyde (MDA), activities of catalase (CAT), glutathione-S-transferase (GST) and superoxide dismutase (SOD) were analyzed. The results showed that BPA exposure significantly influenced the filtration rate of the clam. BPA induced epithelial cell damage and hyperplasia in the gill tissues of the clam, accompanied by a reduction in cilia and gill filaments. Notably, the gill damage became more pronounced with increasing concentrations of BPA. BPA exposure significantly increased the levels of H2O2 and MDA, and the oxidative stress level was the most obvious under 1 μg·L-1 BPA exposure group. BPA exposure significantly decreased CAT activity in gill tissue, but had no significant effect on SOD activity. 1 μg·L-1 BPA exposure resulted in a significant increase in GST activity. In addition, the gene expression levels of Nrf2, Keap1, cat, and tnf-α in the gill tissue of clams were inhibited by 1 μg·L-1 BPA exposure. However, it is worth noting that catgene expression was upregulated specifically under 10 μg·L-1 BPA exposure. This study reveals that BPA exposure induces oxidative stress and tissue damage in clam gill tissues. [ABSTRACT FROM AUTHOR]

Under UV irradiation conditions, bisphenol A (BPA) was used as a model compound to study the composite effects of representative soluble components humic acid ( HA), Fe 3 +, and Cl - on the photolysis of BPA in the aqueous environment using response surface methodology ( RSM) . Results show that HA and Fe 3 + are the significant factors affecting the photodegradation of BPA, followed by NO - 3 and Cl - . HA, NO - 3 and Cl - significantly inhibits the photolysis of BPA, while Fe 3 + promotes it (P < 0. 05) . When HA, Fe 3 +, NO - 3 and Cl - co-exists in the water environment, an interaction on the photolysis of BPA is established. As significant factors, the combination of Fe 3 + and Cl - or HA respectively inhibits the photodegradation of BPA, while the coexistence of HA-Cl - or HA-NO - 3 shows promoting effect. As non-significant factors, there are antagonistic effects between NO - 3 and Fe 3 + or between NO - 3 and Cl - . Radical scavenging experiments unveils that the most important factor HA on BPA photodegradation is mainly attributed to triplet-excited DOM. The predicted value of the model obtained from the natural water sample is in good agreement with the experimental value, indicating that the model can be used to estimate the photolysis of BPA in the natural water sample used, but it also has certain limitations. [ABSTRACT FROM AUTHOR]