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The acute toxicities of 19 chemicals were assessed using G. mellonella larvae. The results obtained were compared against LD50 values derived from in vitro cytotoxicity tests and against in vivo acute oral LD50 values. In general, cell culture systems overestimated the toxicity of chemicals, especially low toxicity chemicals. In contrast, toxicity testing in G. mellonella larvae was found to be a reliable predictor for low toxicity chemicals. For the 9 chemicals tested which were assigned to Globally Harmonised System (GHS) category 5, the toxicity measured in G. mellonella larvae was consistent with their GHS categorisation but cytotoxicity measured in 3T3 or NHK cells predicted 4 out of 9 chemicals as having low toxicity. A more robust assessment of the likely toxicity of chemicals in mammals could be made by taking into account their toxicities in both cell cultures and in G. mellonella larvae.
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Studies conducted over the last decades have shown the potential of entomopathogenic fungi for the biocontrol of some insect pests. They infect their host through the cuticle, so they do not need to b...
The entomopathogenic fungus Conidiobolus coronatus produces enzymes that may hydrolyze the cuticle of Galleria mellonella. Of these enzymes, elastase activity was the highest: this figure being 24 tim...
Over the past 3 decades, in a series of studies on some of the most extensively studied toxic chemicals and pollutants, scientists have found that the amount of toxic chemical linked with the developm...
Both the evaluation and the determination of toxicity of chemical substances present in the environment have implications in human health. In this present study, the natural phenomenon named autotomy,...
After 40 years, the 1976 US Toxic Substances Control Act (TSCA) was revised under the Frank R. Lautenberg Chemical Safety for the 21st Century Act. Its original goals of protecting the public from haz...
To determine whether treatment of patients who have toxic epidermal necrolysis with a drug called remicaide increases the number of patients who are alive 30 days laters.
RATIONALE: Chemoprotective drugs such as carboxypeptidase-G2 may protect normal cells from the toxic effects of chemotherapy. PURPOSE: Clinical trial to study the effectiveness of carboxy...
To determine the toxic effects of AS-101 at various doses in patients with AIDS or AIDS related complex. Also to determine the effect of various doses of AS-101 on immune functions and the...
Twenty-four healthy hookworm-naive volunteers will be exposed to 50 L3 Necator americanus larvae for a maximum of three times.
Toxic Shock Syndrome (TSS) a severe condition with high morbidity and mortality results from the hosts overwhelming inflammatory response and cytokine storm. Staphylococcal superantigen to...
A highly toxic compound used as a gasoline additive. It causes acute toxic psychosis or chronic poisoning if inhaled or absorbed through the skin.
The science concerned with the detection, chemical composition, and biological action of toxic substances or poisons and the treatment and prevention of toxic manifestations.
Toxic, chlorinated, saturated hydrocarbons. Include both the 1,1- and 1,2-dichloro isomers. The latter is considerably more toxic. It has a sweet taste, ethereal odor and has been used as a fumigant and intoxicant among sniffers. Has many household and industrial uses.
Experiments designed to determine the potential toxic effects of mid-term (a few months) exposure to a chemical or chemicals.
Experiments designed to determine the potential toxic effects of a long-term exposure to a chemical or chemicals.
Types of Cell Culture Open https://www.youtube.com/watch?v=WGKoJRNKADY to view video on cell culture basics. Four catagories of cell culture techniques are listed below: Adherent cells Cells shown to require attachment for growth are sa...