12 documents found, page 1 of 2
Nanoplastic exposure inhibits feeding and delays regeneration in a freshwater p...
Cesarini, Giulia; Coppola, Francesca; Campos, Diana; Venditti, Iole; Battocchio, Chiara; Di Giulio, Andrea; Muzzi, Maurizio; Pestana, João L. T.The concentration of nanoplastics (NPs) is expected to increase in aquatic environments thus potentially threatening freshwater organisms through interactions with plastic particles that variously float, circulate in the water column or sink into the benthos. Studies into the mechanisms of any NP effects are still scarce, particularly with respect to the regenerative ability of biota for which there is no recog...
Toxicity assessment of binary mixtures of BP3 with 4-MBC (UV-filters), and BP3 ...
Campos, Diana; Morgado, Rui G.; Silva, Ana Rita R.; Machado, Ana L.; Grabicová, Kateřina; Žlábek, Vladimír; Loureiro, Susana; Soares, Amadeu M. V. M.Personal care products have various organic ultraviolet filters (UV filters) in their composition to increase protection against ultraviolet radiation. Some of these products also contain insect repellents in their formulations. Consequently, these compounds reach freshwater ecosystems, exposing aquatic organisms to a cocktail of anthropogenic contaminants. In this study, the joint effects of two most frequentl...
Can the toxicity of polyethylene microplastics and engineered nanoclays on flat...
Santana, Lígia M.B.M. [UNESP]; Rodrigues, Andreia C.M.; Campos, Diana; Kaczerewska, Olga; Figueiredo, Joana; Silva, Sara; Sousa, Isabel; Maia, FredericoMade available in DSpace on 2022-04-29T08:33:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-15; European Commission; Fundação para a Ciência e a Tecnologia; Ministério da Ciência, Tecnologia e Ensino Superior; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); European Regional Development Fund; Centro de Inves...
Can the toxicity of polyethylene microplastics and engineered nanoclays on flat...
Santana, Lígia M. B. M.; Rodrigues, Andreia C. M.; Campos, Diana; Kaczerewska, Olga; Figueiredo, Joana; Silva, Sara; Sousa, Isabel; Maia, FredericoMicroplastics and nanomaterials are applied in a myriad of commercial and industrial applications. When leaked to natural environments, such small particles might threaten living organisms' health, particularly when considering their potential combination that remains poorly investigated. This study investigated the physiological and biochemical effects of polyethylene (PE; 64-125 μm in size, 0.1, 1.0, and 10.0...
Immune response triggered by the ingestion of polyethylene microplastics in the...
Silva, Carlos J. M.; Beleza, Sónia; Campos, Diana; Soares, Amadeu M. V. M.; Patrício Silva, Ana L.; Pestana, João L. T.; Gravato, CarlosThe activation of insects' immune system due to the ingestion of microplastics (MPs) has only been evidenced by the upregulation of specific genes. The activation of phenoloxidase (PO) system is one of the primary responses involved in insects' innate immunity when facing parasites and pathogens, and ingestion of MPs can trigger a similar process. This study aimed at addressing the activities of basal PO and to...
Oxidative damage and decreased aerobic energy production due to ingestion of po...
Silva, Carlos J. M.; Patrício Silva, Ana L.; Campos, Diana; Machado, Ana Luísa.; Pestana, João L. T.; Gravato, CarlosRiverine sediments are major sinks of microplastics from inland anthropogenic activities, imposing a threat to freshwater benthic invertebrates. This study investigated the ingestion of three size-classes (SC) of irregularly shaped polyethylene microplastics (PE-MPs; SC I: 32-63 μm; II: 63-250 μm; III: 125-500 μm) after 48 h by dipteran larvae (detritivore/collector) Chironomus riparius, and the consequent effe...
Global longitudinal strain in chronic asymptomatic aortic regurgitation: system...
Campos, Diana; Teixeira, Rogério; Saleiro, Carolina; Botelho, Ana; Gonçalves, LinoChronic aortic regurgitation (AR) patients typically remain asymptomatic for a long time. Left ventricular mechanics, namely global longitudinal strain (GLS), has been associated with outcomes in AR patients. The authors conducted a systematic review to summarize and appraise GLS impact on mortality, the need for aortic valve replacement (AVR) and disease progression in AR patients. A literature search was perf...
Suborganismal responses of the aquatic midge Chironomus riparius to polyethylen...
Muñiz-González, Ana-Belén; Silva, Carlos J. M.; Silva, Ana L. Patricio; Campos, Diana; Pestana, João Luís Teixeira; Martinez-Guitarte, José-LuisResumo indisponível.
Lethal and sublethal toxicity assessment of Bacillus thuringiensis var. israele...
Bordalo, Maria D.; Gravato, Carlos; Campos, Diana; Beleza, Sónia; Lopes, Isabel; Pestana, João L. T.Despite being considered environmentally safe, a deeper environmental risk assessment is needed for microbial insecticides; special attention should be devoted to their sublethal toxicity to non-target species. This study evaluated effects of VectoBac® 12AS - VB (based on the bacterium Bacillus thurigiensis var. israelensis) and Naturalis®-L - NL (based on the fungus Beauveria bassiana) on the aquatic insect Ch...
Two-generational effects of Benzophenone-3 on the aquatic midge Chironomus ripa...
Campos, Diana; Silva, Ana Rita R.; Loureiro, Susana; Grabicová, Kateřina; Staňová, Andrea Vojs; Soares, Amadeu M. V. M.; Pestana, João L. T.Organic UV-filters are emergent contaminants continuously released into the aquatic ecosystems. These compounds are persistent showing potential for bioaccumulation. Partial life-cycle tests may underestimate the toxicity of UV-filters especially since these compounds have shown to act as endocrine disruptors. In the present study, the benthic aquatic insect Chironomus riparius was exposed to a gradient of Benz...