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High production of transfer RNAs identifies the presence of developing oocytes in ovaries and intersex testes of teleost fish
(Elsevier, 2023-04)
5S rRNA is highly transcribed in fish oocytes and this transcription levels can be used to identify the presence of oocytes in the intersex testes of fish exposed to xenoestrogens. Similar to 5S rRNA, tRNAs are transcribed ...
Predicting environmental concentrations and the potential risk of Plant Protection Products (PPP) on non-target soil organisms accounting for regional and landscape ecological variability in european soils
(Elsevier, 2022-09)
[EN] Plant Protection Products (PPP) raise concerns as their application may cause effects on some soil organisms considered non-target species which could be highly sensitive to some pesticides. The European Food and ...
Environmental risk assessment of PPP application in European soils and potential ecosystem service losses considering impacts on non-target organisms
(Elsevier, 2023-11)
The use of Plant Protection Products (PPPs) is leading to high exposure scenarios with potential risk to soil organisms, including non-target species. Assessment of the effects of PPPs on non-target organisms is one of the ...
Antioxidant activities and selenogene transcription in the european sea bass (Dicentrarchus labrax) liver depend, in a non-linear manner, on the Se/Hg molar tatio of the feeds
(Springer Nature ; Humana Press, 2021-07-01)
[EN] Feeding 3.9 and 6.7 mg Hg/kg (Se/Hg molar ratios of 0.8 and 0.4, respectively) for 14 days negatively affected Dicentrarchus
labrax growth and total DNTB- and thioredoxin-reductase (TrxR) activities and the transcription ...
Innovative in vivo and in vitro bioassays for the establishment of toxicity thresholds of pollutants in sediment quality assessment using polychaetes and their immune cells.
(Elsevier, 2023-01)
Sediment toxicity testing has become a crucial component for assessing the risks posed by contaminated sediments and for the development of sediment quality assessment strategies. Commonly used organisms for bioassays with ...
Alteration in molecular markers of oocyte development and intersex condition in mullets impacted by wastewater treatment plant effluents
(Elsevier, 2016-06-11)
Wastewater Treatment Plant (WWTP) discharges are an important source of endocrine disrupting chemicals (EDCs) into the aquatic environment. Fish populations inhabiting downstream of WWTP effluents show alterations in gonad ...
5S rRNA and Accompanying Proteins in Gonads: Powerful Markers to Identify Sex and Reproductive Endocrine Disruption in Fish
(ACS, 2012-06-22)
In anuran ovaries, 5S rDNA is regulated transcriptionally by transcription factor IIIA (TFIIIA), which upon transcription, binds 5S rRNA, forming 7S RNP. 5S rRNA can be stockpiled also in the form of 42S RNP bound to 42sp43. ...
Molecular markers of oocyte differentiation in European eel during hormonally induced oogenesis
(Elsevier, 2017-09-01)
Reproduction in captivity is a key study issue in Anguilla anguilla as a possible solution for its dwindling population. Understanding the mechanisms controlling the production of ribosomal building blocks during artificially ...
Cadmium bioaccumulation in aquatic oligochaetes using a biodynamic model: a review of values of physiological parameters and model validation using laboratory and field bioaccumulation data
(Springer, 2017-05)
This study reviews certain physiological digestive parameters in the literature that could be used to predict tissue residues in aquatic oligochaetes using the biodynamic model. Predictions were evaluated with independently ...
Baseline tissue concentrations of metal in aquatic oligochaetes: field and laboratory approaches.
(Elsevier, 2017-02-04)
Metal tissue residue evaluation in benthic macroinvertebrates is an important component of an integrated approach to ecological risk assessment of metals and metalloids in the Nalón River basin (North Spain), where historic ...