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Pyrrolizidine alkaloids (PAs), sometimes referred to as necine bases, are a group of naturally occurring alkaloids based on the structure of pyrrolizidine. Their use dates back centuries and is intertwined with the discovery, understanding, and eventual recognition of their toxicity on humans and animals.
Pyrrolizidine alkaloidosis can result in damage to the liver, kidneys, heart, brain, smooth muscles, lungs, DNA, lesions all over the body, and could be a potential cause of cancer. [ 1 ] [ 2 ] Pyrrolizidine alkaloidosis is known by many other names such as "Pictou Disease" in Canada [ 3 ] and "Winton Disease" in New Zealand. [ 4 ]
Like other pyrrolizidine alkaloids, senecionine is toxic when ingested. The ingested molecule is a protoxin that is metabolized to its active form. [3] In large quantities, ingestion can lead to critical illness, including convulsions and death. Studies in rodents have shown an LD 50 of 65 mg/kg. [4]
In 1963, a 7-Eleven store near an Austin, Texas, university began to stay open all night for student shoppers. It was such a success that other stores in the chain adopted the 24/7 hours, and ...
The San Francisco 49ers’ running back problems aren’t getting any better. 49ers head coach Kyle Shanahan confirmed Monday that Isaac Guerendo sustained a foot sprain in Sunday’s 38-13 win ...
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Robert F. Kennedy Jr.'s personal attorney previously lobbied the Food and Drug Administration to revoke its approval of the polio vaccine, highlighting an influential Kennedy ally who, sources ...
An "incident" of chemical food contamination may be defined as an episodic occurrence of adverse health effects in humans (or animals that might be consumed by humans) following high exposure to particular chemicals, or instances where episodically high concentrations of chemical hazards were detected in the food chain and traced back to a particular event.