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In addition, reconstituted samples are often toxic for cells, which makes these samples unsuitable for virus neutralization assays.
However, their toxic effect upon early procaryote cells is not well determined.
Quantitative model demonstrating that recombinant adeno-associated virus and green fluorescent protein are non-toxic to the rat retina.
Post-mortem evidence of a diffuse toxic or infectious process is pleural effusions, soft tissue oedema and necrosis at the injection site.
Goats fed tannin-containing leaves do not exhibit toxic syndromes.
Furthermore, much of today's environmental disruption, loss of biodiversity, release of toxic substances, and climate change is traceable to humanity's environmentally incompetent, short-range-focused agricultural enterprise.
In addition, there is the ever-present risk of unintentional exposures of populations to toxic chemicals and pathogens through industrial accidents and food contamination.
Protecting the consumer: the development of animal tests for evaluating toxic hazards.
Emphasis is placed on small molecules that inhibit protein aggregation, upregulate molecular chaperones, or interfere with downstream toxic pathways.
Such dramatic responses to aphid feeding are unusual and probably indicate the involvement of toxic aphid saliva or hypersensitive reactions of the cypress trees.
In the present study, the metals chosen (copper, zinc, manganese and iron) are all essential for normal molluscan metabolism but are toxic at high concentrations.
Many were too toxic; others (such as the school's controversial steam-heating plant) too politically hot.
Excessive use of crop protection chemicals may also prove toxic to invertebrate populations, thus decreasing abundance and diversity11,12,14,20.
Most substances found to be toxic to digeneans are not regarded as pollutant risks.
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