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In 1989, an acquired high anion gap metabolic acidosis due to elevated 5-oxoproline (pyroglutamic acid) was first reported. This is related to chronic acetaminophen use in malnourished patients and women with chronic medical conditions, it could happen even using therapeutic or low doses. The mainstay of treatment is cessation of acetaminophen use along with the administration of intravenous fluids. N-acetyl cysteine might accelerate improvement. The best explanation of the disorder is glutathione depletion and activation of a key enzyme in the ╬│-glutamyl cycle. This review article aims to highlight the mechanism and management of acquired high anion gap metabolic acidosis caused by 5-oxoproline in the adult population. Copyright┬ę South Dakota State Medical Association.


Sarah Elsayed, Ahmed Gohar, Muhammad Omar. A Review Article on 5-Oxoproline Induced High Anion Gap Metabolic Acidosis. South Dakota medicine : the journal of the South Dakota State Medical Association. 2021 Oct;74(10):468-470

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PMID: 34995428

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