Disease relevance of Toxicity Tests, Chronic

• In general, for both acute and chronic toxicity tests, the order of increasing relative toxicity based on the water-borne exposure concentrations was: chloroethanes, chloroethylenes, chlorobenzenes, and chlorophenols [1].

High impact information on Toxicity Tests, Chronic

• A chronic toxicity test was carried out in groups of 20 male and female F344 rats with vinyl acetate dissolved in drinking water at two concentrations, 2500 and 1000 mg/liter [2].
• However, the chronic toxicity tests disclosed a narrow concentration range over which cell proliferation decreased dramatically but calcein metabolism was sustained [3].
• Chronic toxicity tests were carried out using sublethal propanil concentrations (0.07, 0.10, 0.21 and 0.55 mg/l) during 21 days [4].
• Algal food density had a significant influence in reducing the toxicity of methyl parathion to B. patulus under both acute and chronic toxicity test conditions [5].
• To test chronic toxicity, worker bees were fed sucrose solutions containing 0.1, 1, and 10 microg/L of imidacloprid and its metabolites for 10 d [6].

Chemical compound and disease context of Toxicity Tests, Chronic

• The RIp estimation technique, with level of inhibition p = 25%, is applied to a series of chronic toxicity test data from a U.S. EPA Region 9 database of reference toxicity tests [7].
• The findings of this investigation provide information on the acute toxicity, metabolism, and distribution of picric acid, which can be used in risk assessment analyses and in the design of subchronic and chronic toxicity tests [8].

Biological context of Toxicity Tests, Chronic

• Additional chronic toxicity tests indicated that toxaphene acclimation occurs between 7 and 12 days following initial exposure, at which time sex determination is no longer affected [9].
• Preclinical toxicology studies with acyclovir: carcinogenicity bioassays and chronic toxicity tests [10].

Associations of Toxicity Tests, Chronic with chemical compounds

• In a chronic toxicity test 0.1 and 0.05% p-phenylenediamine were given to both sexes in their diet for 80 weeks, but no carcinogenic effects were found in either sex [11].
• Acute and chronic toxicity tests were conducted on the herbicide benzofenap (Taipan 300) using two Australian freshwater invertebrates [12].
• A chronic toxicity test (18 days) performed in six experimental channels with 15 microg l(-1) of atrazine showed significant changes in grazer behaviour, increased searching velocity and different movement patterns in animals exposed to herbicide [13].
• The addition of 100 micrograms/L of Aroclor 1242 (A1242) or 2,5,2',5'-tetrachlorobiphenyl (TeCB) during 10 week chronic toxicity tests with Hyalella azteca resulted in complete mortality [14].
• Toxicological studies on bestatin. III. Chronic toxicity test and recovery study in beagle dogs [15].

Gene context of Toxicity Tests, Chronic

• P. promelas, however, had less tolerance for Stam M-4 in irrigation water (4.45 mg/L) than in synthetic water (5.93 mg/L) in 7-d chronic toxicity tests [16].

References