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Halogenated organic compounds in mangrove sediments from Bintan Island, Indonesia: Occurrence, profiles, sources, and potential ecological risk.
Environ Pollut
January 2025
Center of Advanced Technology for the Environment (CATE), Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan; Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. Electronic address:
The first comprehensive analysis of halogenated organic compounds (HOCs), including 209 full congeners of polychlorinated biphenyls (PCBs), 26 organochlorinated pesticides (OCPs), 41 polybrominated diphenyl ethers (PBDEs), and four other brominated flame retardants (BFRs), was performed on surface mangrove sediments from Bintan Island, Province of the Riau Archipelago, Indonesia. Among the measured HOC contaminants, the mean concentration of ∑PCBs (2.3±0.
View Article and Find Full Text PDFNondestructively-measured leaf ammonia emission rates can partly reflect maize growth status.
Plant Physiol Biochem
January 2025
School of Life Sciences, Anhui Agricultural University, Hefei 230036, China; Engineering Research Center of Environmentally-friendly and Efficient Fertilizer and Pesticide of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China. Electronic address:
A deep understanding of ammonia (NH) emissions from cropland can promote efficient crop production. To date, little is known about leaf NH emissions because of the lack of rapid detection methods. We developed a method for detecting leaf NH emissions based on portable NH sensors.
View Article and Find Full Text PDFEnzymatic activity and gene expression changes in the earthworms induced by co-exposure to beta-cypermethrin and triadimefon.
Ecotoxicology
January 2025
Anshun City Branch of Guizhou Tobacco Company, Anshun, Guizhou, China.
Pesticides often exist as complex mixtures in soil environments, yet the toxicity of these combinations has not been thoroughly investigated. In light of this, the current study aimed to assess the enzymatic activity and gene expression responses in the earthworm Eisenia fetida when exposed to a mixture of beta-cypermethrin (BCY) and triadimefon (TRI). The findings revealed that co-exposure to BCY and TRI triggered acute synergistic toxicity in E.
View Article and Find Full Text PDFEvaluation of sources, spatial and temporal distribution, ecological and health risk associated with CAF (Caffeine) and DEET (N, N-diethyl-meta-toluamide) contamination in the urban groundwater parts of Vellore city, Tamilnadu, India.
Environ Geochem Health
January 2025
School of Civil Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India.
Urban environments are heavily influenced by various activities, leading to contamination of water sources by emerging contaminants (ECs). Among these, caffeine (CAF) and N, N-diethyl-meta-toluamide (DEET) are notable ECs frequently found in domestic sewage due to human activities. Despite extensive research on emerging contaminants, limited studies have focused on the seasonal variations, human health and ecological risks of CAF and DEET in urban groundwater, particularly in Indian cities.
View Article and Find Full Text PDFCharacterization and Fluctuations of an Ivermectin Binding Site at the Lipid Raft Interface of the N-Terminal Domain (NTD) of the Spike Protein of SARS-CoV-2 Variants.
Viruses
November 2024
Department of Biology, Faculty of Medicine, Aix-Marseille University, INSERM UA16, 13015 Marseille, France.
Most studies on the docking of ivermectin on the spike protein of SARS-CoV-2 concern the receptor binding domain (RBD) and, more precisely, the RBD interface recognized by the ACE2 receptor. The N-terminal domain (NTD), which controls the initial attachment of the virus to lipid raft gangliosides, has not received the attention it deserves. In this study, we combined molecular modeling and physicochemical approaches to analyze the mode of interaction of ivermectin with the interface of the NTD-facing lipid rafts of the host cell membrane.
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