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33 results for “Bioaccumulation”
Cell size, chlorophyll fluorescence and cadmium bioaccumulation between wild-type and mutant strains of Chlamydomonas reinhardtii upon exposure to cadmium
<p>Heavy metal contamination presents a constant threat to biological systems. Simultaneously, heavy metals have become one of the major contaminants in the aquatic ecosystem. In this regard, the investigation of heavy metal-tolerance genes in algae is relevant. <i>Chlamydomonas reinhardtii</i> is a unicellular green alga, and an excellent model organism used in heavy metal studies. In <i>C. reinhardtii</i>, a novel gene designated as Cia7, was hypothesized to play a role in heavy metal homeostasis due to CIA7's conserved cysteine-residue motif. This study compared two strains of <i>C. reinhardtii</i>, cc4425, the wild-type possessing the functional CIA7 protein and cc5013, the mutant strain possessing the disrupted cia7- gene. The hypothesis was that the expression of Cia7 contributes to an increased cadmium (Cd)-tolerance in <i>C. reinhardtii</i>. The Cd-tolerance would be described by physiological markers of microalgae health, and by intracellular accumulation of the metal. Methods: The objectives of this study were (1) to compare chlorophyll fluorescence and cell size in cc4425 and cc5013 exposed to Cd<sup>2+</sup>, and (2) to compare Cd<sup>2+</sup> bioaccumulation in cc4425 and cc5013 strains in different growth media. Flow cytometry, and inductively coupled plasma optical emission spectrometry (ICP-OES) analysis were performed. Results: There was no significant statistical difference in Cd<sup>2+</sup> bioaccumulation between the two strains, cc4425 and cc5013, regardless of growth media. However, a statistically significant difference in Cd<sup>2+</sup> bioaccumulation (p<0.0001) was determined between the media (with acetate and without acetate). The cia7- mutant, cc5013 was found to be more susceptible to a Cd<sup>2+</sup>-induced decrease in chlorophyll fluorescence and had a reduced cell size compared to cc4425, the wild-type strain. Conclusions: These observed differences between the strains suggest that CIA7's biological activity could play a direct or indirect role in increasing Cd tolerance in <i>C. reinhardtii</i>.</p>
Study of the Bioaccumulation of Tinzaparin in Renally Impaired Patients When Given at Prophylactic Doses
ClinicalTrials.gov study NCT02719418. IPD Sharing: UNDECIDED. Countries: 1. Publications: 39.
Bioaccumulation of the pesticide Imidacloprid in stream organisms and sublethal effects in salamanders in West Virginia
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Data from: Assessing environmental pollution in birds: a new methodological approach for interpreting bioaccumulation of trace elements in feather shafts using geochemical sediment data
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Data from: Bioaccumulation of perfluorooctane sulfonic acid (PFOS) and oxidative stress in snapping turtles in New York, USA
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Data from: Arsenic bioaccumulation in subarctic fishes of a mine-impacted bay on Great Slave Lake, Northwest Territories, Canada
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Cell size, chlorophyll fluorescence and cadmium bioaccumulation between wild-type and mutant strains of Chlamydomonas reinhardtii upon exposure to cadmium
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Data from: Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals
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A Bayesian framework for estimating parameters of a generic toxicokinetic model for the bioaccumulation of organic chemicals by benthic invertebrates: proof of concept with PCB153 and two freshwater species.
<p>R Codes and corresponding .csv data files for estimating toxicokinetic model parameters for both chironomids and gammarids exposed to PCB153.</p>
Data from: Environmental context and contaminant biotransport by Pacific salmon interact to mediate the bioaccumulation of contaminants by stream-resident fish
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Acute toxicity, bioaccumulation and effects of dietary transfer of silver from brine shrimps exposed to PVP/PEI-coated silver nanoparticles to zebrafish
GEO Series GSE90457. Danio rerio. 37 samples. Type: Expression profiling by array.
Correlation of transcriptomic responses and metal bioaccumulation in Mytilus edulis L. reveals early indicators of stress
GEO Series GSE58649. Mytilus edulis. 52 samples. Type: Expression profiling by array.
Bioaccumulation, cellular and molecular effects in adult zebrafish after exposure to cadmium sulphide quantum dots and ionic cadmium
GEO Series GSE89756. Danio rerio. 22 samples. Type: Expression profiling by array.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.