Results 81 to 90 of about 34,895 (226)

Effects of short‐term multi‐pollutant exposure on the oxidative stress status of captive songbirds

Functional Ecology, Volume 39, Issue 5, Page 1160-1175, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The human influence on Earth's ecosystems is omnipresent. Artificial light at night (ALAN), anthropogenic noise, and air pollution are inherent features of human activities and infrastructure and pose novel environmental challenges to urban‐dwelling wildlife.
Ann‐Kathrin Ziegler, Jenny Rissler, Anders Gudmundsson, Caroline Isaksson   +3 more
wiley   +1 more source

Leveraging Epidemiology to Improve Risk Assessment. [PDF]

, 2011
The field of environmental public health is at an important crossroad. Our current biomonitoring efforts document widespread exposure to a host of chemicals for which toxicity information is lacking.
Burke, Thomas A, Fox, Mary A, Nachman, Keeve E, Rodricks, Joseph V, Sheehan, Mary C, Woodruff, Tracey J   +5 more
core  

Megatrends and emerging issues: Impacts on food safety

Comprehensive Reviews in Food Science and Food Safety, Volume 24, Issue 3, May 2025.
Abstract The world is changing at a pace, driven by global megatrends and their interactions. Megatrends, including climate change, the drive for sustainability, an aging population, urbanization, and geopolitical tensions, are producing an increasingly challenging environment for the provision of a safe and secure food supply. To ensure a robust, safe,
Margaret Thorsen, Jeremy Hill, Jeffrey Farber, Frank Yiannas, Ivonne M. C. M. Rietjens, Pierre Venter, Ryk Lues, Phil Bremer   +7 more
wiley   +1 more source

Use of headspace solid-phase microextraction for the analysis and characterisation of volatile compounds in rumen contents : a thesis presented in partial fulfillment of the requirements for the degree of Masterate of Science in Chemistry at Massey University [PDF]

, 2005
Appendix 2&3 removed due to copyright restrictions. Please consult print copy in Library.Volatile fatty acids (VFAs), alkyl phenols and indolic compounds are produced by rumen microbes during the fermentation of forages in ruminants.
Lu, Shengyi
core  

Microwave-assisted extraction for methylmercury determination in sediments by high performance liquid chromatography-cold vapour-atomic fluorescence spectrometry [PDF]

, 2001
A simple and rapid procedure for methylmercury extraction from sediments based on microwave-assisted alkaline digestion with methanolic potassium hydroxide was optimized on parameters such as microwave power, extraction time and sample size ...
Duarte, Armando, Pereira, Eduarda, Ramalhosa, Elsa, Río-Segade, Susana, Vale, Carlos   +4 more
core   +1 more source

Assessment of developmental neurotoxicity induced by chemical mixtures using an adverse outcome pathway concept

Environmental Health, 2020
Background In light of the vulnerability of the developing brain, mixture risk assessment (MRA) for the evaluation of developmental neurotoxicity (DNT) should be implemented, since infants and children are co-exposed to more than one chemical at a time ...
Francesca Pistollato, Emilio Mendoza de Gyves, Donatella Carpi, Stephanie K. Bopp, Carolina Nunes, Andrew Worth, Anna Bal-Price   +6 more
doaj   +1 more source

Glutathione Metabolism of the Brain—The Role of Astrocytes

Journal of Neurochemistry, Volume 169, Issue 5, May 2025.
Astrocytes supply neurons with the substrates for the synthesis of GSH (γGluCysGly). Astrocytes provide neurons with precursors for the three amino acids that are needed for GSH synthesis. The supply pathway involves the export of GSH from astrocytes via the multidrug‐resistance protein 1 (Mrp1), extracellular processing of GSH by astrocytic γ‐glutamyl
Ralf Dringen, Christian Arend
wiley   +1 more source

Assessment of water quality and emerging pollutants in two fish species from the mallorquin swamp in the Colombian Caribbean. [PDF]

Heliyon
The Mallorquín Swamp, an important ecosystem in Atlántico, Colombian Caribbean, underwent environmental monitoring at eight points during rainy, transition, and dry seasons. This was to assess water quality, seasonal variation, and the bioaccumulation of
Elles-Pérez C, Guzman-Tordecilla M, Ramos Y, Castillo-Ramírez M, Moreno-Ríos A, Garzón-Rodríguez C, Rojas-Solano J.   +6 more
europepmc   +2 more sources

Impaired cross-talk between the thioredoxin and glutathione systems is related to ASK-1 mediated apoptosis in neuronal cells exposed to mercury

Redox Biology, 2017
Mercury (Hg) compounds target both cysteine (Cys) and selenocysteine (Sec) residues in peptides and proteins. Thus, the components of the two major cellular antioxidant systems – glutathione (GSH) and thioredoxin (Trx) systems – are likely targets for ...
Vasco Branco, Lucia Coppo, Susana Solá, Jun Lu, Cecília M.P. Rodrigues, Arne Holmgren, Cristina Carvalho   +6 more
doaj   +1 more source

Isolation and Identification of Mercury–Dissolved Organic Matter Complexes in Mercury–Humic Acid Suspensions

Rapid Communications in Mass Spectrometry, Volume 39, Issue 8, 30 April 2025.
ABSTRACT Rationale The complexation with dissolved organic matter (DOM) is a pivotal factor influencing transformations, transport, and bioavailability of mercury (Hg) in aquatic environments. However, identifying these complexes poses a significant challenge because of their low concentrations and the presence of coexisting ions. Methods In this study,
Ghulam Hussain Qasim, Lisa Harris, Vaughn Mangal, Mario Montesdeoca, Svetoslava Todorova, Charles Driscoll   +5 more
wiley   +1 more source