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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.
Senecionine is a toxic pyrrolizidine alkaloid isolated from various botanical sources. It takes its name from the Senecio genus and is produced by many different plants in that genus, including Jacobaea vulgaris (Senecio jacobaea).
Another group of alkaloids, the senecio-type alkaloids, are produced by various plants and like the lolines, the senecio alkaloids possess a pyrrolizidine ring structure. Unlike the lolines, however, the senecio alkaloids exhibit strong hepatotoxicity , [ 13 ] owing to a double bond between C-1 and C-2 in their ring structure. [ 13 ]
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 ]
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Police believed William Dale Archerd killed three of his wives, two men, and his 15-year-old nephew. From left, top, are William Edward Jones Jr., Zella Winders Archerd and Juanita Plum Archerd.
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