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uroporphyrin

   Also found in: Medical 0.06 sec.
uroporphyrin [¦yu̇r·ə′pȯr·fə·rən]
(biochemistry)
Any of several isomeric, metal-free porphyrins, occurring in small quantities in normal urine and feces; molecule has four acetic acid (‒CH2COOH) and four propionic acid (‒CH2CH2COOH) groups.


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The disease is characterized biochemically by marked increases in uroporphyrin and heptaporphyrin in urine (3).
Evaluation of urinary porphyrin excretion in neonates born to mothers ... by Sunyer, Jordi / Environmental Health Perspectives
5] M) to liver cell cultures completely abolished the induction of uroporphyrin formation by 3,3',4,4'-tetra-chlorobiphenyl (TCB), suggesting that the uroporphyrin induction response may be regulated by the availability of heme in the liver cell.
Chlorophyll Derived from Chlorella Inhibits Dioxin Absorption from ... by Hasegawa, Takashi / Environmental Health Perspectives
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