Results 71 to 80 of about 13,743 (208)

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

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

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

Methylmercury toxicity and functional programming

Reproductive Toxicology, 2007
Adverse health effects of developmental toxicants may induce abnormal functional programming that leads to lasting functional deficits. This notion is considered from epidemiological evidence using developmental methylmercury neurotoxicity as an example.Accumulating evidence indicates that adverse effects may occur even at low-level methylmercury ...
openaire   +6 more sources

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

Silica‐based Materials for Mercury Detection and Removal: A Chelation‐Free Solution

Chemistry – An Asian Journal, Volume 20, Issue 8, April 17, 2025.
This work presents a chelating ligand‐free approach to the dual‐functional detection and removal of Hg2+ in aqueous media using a new silica‐based material functionalized with pyrene (PySiO2). PySiO2 exhibits high selectivity, sensitivity, and reusability, making it a promising candidate for sustainable water purification.
Thanudkit Jitjaroendee, Supphachok Chanmungkalakul, Vuthichai Ervithayasuporn, Supavadee Kiatisevi   +3 more
wiley   +1 more source

Effect of Metallothionein-III on Mercury-Induced Chemokine Gene Expression

Toxics, 2018
Mercury compounds are known to cause central nervous system disorders; however the detailed molecular mechanisms of their actions remain unclear.
Jin-Yong Lee, Maki Tokumoto, Gi-Wook Hwang, Min-Seok Kim, Tsutomu Takahashi, Akira Naganuma, Minoru Yoshida, Masahiko Satoh   +7 more
doaj   +1 more source

Deep sea cold seeps are a sink for mercury and source for methylmercury

Communications Earth & Environment
The effect of seafloor cold seeps on the biogeochemical cycling of mercury (Hg) remains enigmatic. Here we demonstrate substantial enrichments of mercury and methylmercury, along with the presence of microbes capable of metabolizing mercury in sediments ...
Jiwei Li, Xiyang Dong, Yongjie Tang, Chuwen Zhang, Yali Yang, Wei Zhang, Shanshan Liu, Wei Yuan, Xinbin Feng, Lars-Eric Heimbürger-Boavida, Feiyue Wang, Lihai Shang, Xiaotong Peng   +12 more
doaj   +1 more source

Distribution of Total and Organic Mercury in Superficial Soils in the Upper Manzanares River Watershed, Sucre State, Venezuela

Air, Soil and Water Research, 2008
Total and organic mercury contents were determined from samples of surface soils (0-5 cm), sieved at ≤63 μm. collected from 10 different locations in the upper Manzanares River watershed, using cold vapor atomic absorption spectroscopy. Methylmercury was
Yahsέ Rojas Challa, Luisa Rojas de Astudillo, Armando Ramirez, Andrέs Escalona, Gregorio Martínez   +4 more
doaj   +1 more source

Determination of Methylmercury Compounds in Foodstuffs. I. Methylmercury Compounds in Fish; Identification and Determination. [PDF]

, 1966
Gunnel Westöö, Åke Nilsson, Lars Rymo, J. H. Bowie, D. H. Williams, E. Bunnenberg, Carl Djerassi, Ruth Records   +7 more
openalex   +1 more source