Results 51 to 60 of about 42,677 (219)

Overview of the re‐evaluation of trace elements as nutritional feed additives in the European Union: characterization, safety, and efficacy

Journal of the Science of Food and Agriculture, EarlyView.
Abstract The re‐evaluation of feed additives in the European Union was outlined in the Regulation (EC) No 1831/2003. The primary objectives were to ensure safety and verify efficacy, as well as to update authorizations and phase out unsafe additives or those in which the industry expressed no interest.
Gloria López‐Gálvez, Maria de Lourdes Bastos, Francesco Cubadda, Mikolaj A Gralak, Christer Hogstrand, Matteo L Innocenti, Joop de Knecht, Marta López‐Alonso, Alberto Mantovani, Alena Pechová, Fernando Ramos, Jürgen Gropp   +11 more
wiley   +1 more source

Metabolism and metabolites of polychlorinated biphenyls [PDF]

Critical Reviews in Toxicology, 2015
Abstract The metabolism of polychlorinated biphenyls (PCBs) is complex and has an impact on toxicity, and thereby on the assessment of PCB risks. A large number of reactive and stable metabolites are formed in the processes of biotransformation in biota in general, and in humans in particular.
Fabian A, Grimm, Dingfei, Hu, Izabela, Kania-Korwel, Hans-Joachim, Lehmler, Gabriele, Ludewig, Keri C, Hornbuckle, Michael W, Duffel, Åke, Bergman, Larry W, Robertson   +8 more
openaire   +2 more sources

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Congener specific analysis of polychlorinated terphenyls [PDF]

, 2010
In order to identify and to quantify polychlorinated terphenyls (PCT) in environmental matrices, the chro- matographic behavior of coplanar and non-coplanar congeners was evaluated.
Wichmann, H., Vogt, R., Wibowo, A., Bahadir, M., Pontaka, D.   +4 more
core  

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

Polychlorinated biphenyls, glycaemia and diabetes in a population living in a highly polychlorinated biphenyls-polluted area in northern Italy: a cross-sectional and cohort study

Journal of Public Health Research, 2013
Background. Polychlorinated biphenyls (PCBs) have been found to be associated with diabetes in some, but not all, studies performed so far. The aim of this study was to assess the association between PCB serum levels and glycaemia and diabetes in people ...
Claudia Zani, Francesco Donato, Michele Magoni, Donatella Feretti, Loredana Covolo, Francesco Vassallo, Fabrizio Speziani, Carmelo Scarcella, Roberto Bergonzi, Pietro Apostoli   +9 more
doaj   +1 more source

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

Assessing the ability of white-rot fungi to tolerate polychlorinated biphenyls using predictive mycology

Mycology, 2018
The aim of the present study was to assess the ability of different white-rot fungi to tolerate polychlorinated biphenyls (PCBs) using predictive mycology, by relating fungal growth inhibition to ligninolityc enzyme secretion.
Marcela Alejandra Sadañoski, Juan Ernesto Velázquez, María Isabel Fonseca, Pedro Darío Zapata, Laura Noemí Levin, Laura Lidia Villalba   +5 more
doaj   +1 more source

Beyond monofunctionality: structural perspectives on phenol oxidase side activity in a catalase

Acta Crystallographica Section D, EarlyView.
Structural and biochemical characterization of the extracellular fungal catalase ClCPO uncovers an unexpected phenol oxidase promiscuity. Crystal structures, substrate docking and electron‐transfer pathway analysis identify ligand‐binding regions and support a working mechanistic model for catalase‐associated phenol oxidase activity.Catalases are ...
Christina Ferousi, Christos Kosinas, Odyssefs Ioannis Pantelakis, Efstratios Nikolaivits, Evangelos Topakas, Maria Dimarogona   +5 more
wiley   +1 more source

Headache disorders among Indigenous communities: A scoping review undertaken with knowledge keeper guidance

Headache: The Journal of Head and Face Pain, EarlyView.
Abstract Objective We performed a scoping review of literature on headache etiology, classification, prevalence, and treatment in Indigenous communities in Canada, the United States, Australia, and New Zealand. Background In the United States, analysis of national prevalence indicates that Indigenous Americans lead all other racial/ethnic groups in ...
Maia Kelly, Candice M. Todd, Ojistoh Kahnawahere Horn, Emily Simmonds, Diane Longboat, Cynthia White, Suvendrini Lena   +6 more
wiley   +1 more source