hematin(redirected from oxyheme)
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1. the hydroxide of heme; it stimulates the synthesis of globin, inhibits the synthesis of porphyrin, and is a component of cytochromes and peroxidases; it is also used as a reagent.
2. hemin (def. 1).
Heme in which the iron is Fe(III); the prosthetic group of methemoglobin.
A blue to blackish-brown compound, C34H32N4O4·FeOH, formed in the decomposition of hemoglobin.
A drug administered intravenously to halt an acute porphyria attack. It causes heme biosynthesis to decrease, preventing the further accumulation of heme precursors.
Mentioned in: Porphyrias