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Pyrrolizidine is a heterocyclic organic compound. Formally, it is a saturated derivative of pyrrolizine. Pyrrolizidine forms the central chemical structure of a variety of alkaloids known collectively as pyrrolizidine alkaloids. [1] It is one of five classes of iminosugars. These are often synthesized from a carbohydrate. [2]
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.
Pages in category "Pyrrolizidine alkaloids" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. ...
By Mariam Sunny and Kamal Choudhury (Reuters) -The U.S. Food and Drug Administration has approved Ionis Pharmaceuticals' drug to treat a rare genetic disorder, making it the company's first wholly ...
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 ]
WASHINGTON − Former President Bill Clinton was hospitalized in Washington “for testing and observation after developing a fever,” his deputy chief of staff announced Monday. “He remains in ...
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