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  1. Article ; Online: Effects of the herbicide ametryn on development and thyroidogenesis of bullfrog tadpoles (Aquarana catesbeiana) under different temperatures.

    Grott, Suelen Cristina / Israel, Nicole Grasmuk / Lima, Daína / Velasquez Bastolla, Camila Lisarb / Carneiro, Francisco / Alves, Thiago Caique / Bitschinski, Daiane / Dias Bainy, Afonso Celso / Barbosa da Silva, Elizia / Coelho de Albuquerque, Claudia Almeida / Alves de Almeida, Eduardo

    Environmental pollution (Barking, Essex : 1987)

    2023  Volume 322, Page(s) 121159

    Abstract: Thyroid hormones (TH) are essential for the metamorphosis of amphibians and their production can be influenced by environmental stressors, such as temperature fluctuations, and exposure to aquatic pollutants, such as herbicides. In the present study we ... ...

    Abstract Thyroid hormones (TH) are essential for the metamorphosis of amphibians and their production can be influenced by environmental stressors, such as temperature fluctuations, and exposure to aquatic pollutants, such as herbicides. In the present study we evaluated the influence of different temperatures (25 and 32 °C) on the effects of the herbicide ametryn (AMT, 0 - control, 10, 50 and 200 ng.L
    MeSH term(s) Animals ; Rana catesbeiana ; Larva ; Herbicides/toxicity ; Temperature ; Metamorphosis, Biological
    Chemical Substances Herbicides ; ametryne (1SPQ95183Y)
    Language English
    Publishing date 2023-01-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2023.121159
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2599: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Gender influences molecular and histological biomarkers in mature oysters Crassostrea gasar (Adanson, 1757) after pyrene exposure.

    Martins Dos Reis, Isis Mayna / Mattos, Jacó Joaquim / Siebert, Marília Nardelli / Zacchi, Flávia Lucena / Velasquez Bastolla, Camila Lisarb / Saldaña-Serrano, Miguel / Bícego, Márcia Caruso / Taniguchi, Satie / Araujo de Miranda Gomes, Carlos Henrique / Rodrigues de Melo, Claudio Manoel / Dias Bainy, Afonso Celso

    Chemosphere

    2022  Volume 311, Issue Pt 1, Page(s) 136985

    Abstract: Oysters are frequently used as sentinel organisms for monitoring effects of contaminants due to their sessile, filtering habits and bioaccumulation capacity. These animals can show elevated body burden of contaminants, such as pyrene (PYR). PYR can be ... ...

    Abstract Oysters are frequently used as sentinel organisms for monitoring effects of contaminants due to their sessile, filtering habits and bioaccumulation capacity. These animals can show elevated body burden of contaminants, such as pyrene (PYR). PYR can be toxic at a molecular level until the whole oyster, which can show reproductive and behavioral changes. Considering that biologic parameters, such as gender or reproductive stage can interfere in the toxic effects elicited by contaminants uptake, the aim of this study was to evaluate some molecular and histological responses in females and males of oyster Crassostrea gasar exposed to PYR (0.25 and 0.5 μM) for 24 h at the pre-spawning stage. PYR concentrations were analyzed in water and in tissues of female and male oysters. Gene transcripts related to biotransformation (CYP3475C, CYP2-like, CYP2AU1, CYP356A, GSTO-like, GSTM-like, SULT-like), stress (HSP70), and reproduction (Vitellogenin, Glycoprotein) were quantified in gills. In addition, histological analysis and histo-localization of CYP2AU1 mRNA transcripts in gills, mantle and digestive diverticulum were carried out. Females and males in pre-spawning stage bioconcentrated PYR in their tissues. Males were more sensitive to PYR exposure. CYP2AU1 transcripts were higher in males (p < 0.05), as well as tubular atrophy was observed only in males exposed to PYR (p < 0.05). As expected, vitellogenin transcripts were lower in males (p < 0.05). Given these results, it is suggested that levels of CYP2AU1 be a good biomarker of exposure to PYR in oyster C. gasar and that it is important to consider the gender for the interpretation of biomarker responses.
    MeSH term(s) Female ; Animals ; Male ; Crassostrea/metabolism ; Vitellogenins ; Water Pollutants, Chemical/toxicity ; Water Pollutants, Chemical/metabolism ; Pyrenes/toxicity ; Biomarkers
    Chemical Substances Vitellogenins ; Water Pollutants, Chemical ; pyrene (9E0T7WFW93) ; Pyrenes ; Biomarkers
    Language English
    Publishing date 2022-10-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.136985
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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