Six-pack of animal tests The US Environmental Protection Agency is working to replace these in vivo animal tests with nonanimal alternatives to categorize the toxicity of pesticides.

Hypervitaminosis A, or vitamin A toxicity, occurs when you have too much vitamin A in your body. This condition may be acute or chronic. Acute toxicity occurs after consuming large amounts of ...

Vitamin A toxicity happens when you have too much vitamin A stored in your fat and liver. This can occur from either topical or oral use of vitamin A. You can experience either acute or chronic ...

“Recovery for patients with acute toxicity can be rapid when the vitamin is discontinued,” she said. “Chronic toxicity can affect bones, brain and of course the liver. … Sadly, some of the ...

Helper-dependent adenoviral (HD-Ad) vectors have great potential for gene therapy applications; however, their administration induces acute toxicity that impairs safe clinical applications.