Medical term:

coproporphyrin


coproporphyrin

 [kop″ro-por´fĭ-rin]
a porphyrin occurring as several isomers; the III isomer, an intermediate in heme biosynthesis, is excreted in the feces and urine in hereditary coproporphyria and variegate porphyria; the I isomer, a side product, is excreted in the feces and urine in congenital erythropoietic porphyria.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cop·ro·por·phy·rin

(kop'rō-pōr'fi-rin),
One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin (hence, from hemoglobin); certain corproporphyrins are elevated in certain porphyrias.
See also: porphyrinogens.
Farlex Partner Medical Dictionary © Farlex 2012

cop·ro·por·phy·rin

(kop'rō-pōr'fĭr-in)
One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin (hence, from hemoglobin); certain coproporphyrins are elevated in certain porphyrias.
See also: porphyrinogens
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

cop·ro·por·phy·rin

(kop'rō-pōr'fĭr-in)
One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin.
Medical Dictionary for the Dental Professions © Farlex 2012

coproporphyrinogen

 [kop″ro-por″fĭ-rin´o-jen]
a porphyrinogen formed from uroporphyrinogen. Two isomers exist naturally, types I and III; the latter is a functional intermediate in heme biosynthesis while the former is produced in an abortive side reaction.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

por·phy·rin·o·gens

(pōr'fi-rin'ō-jenz),
Intermediates in the biosynthesis of heme, as follows: four porphobilinogens condense to form uroporphyrinogens I and III (giving rise to side products uroporphyrins I and III) that are decarboxylated to form coproporphyrinogens I and III (giving rise to side products coproporphyrins I and III); coproporphyrinogen III is oxidized to protoporphyrinogen III (IX), which is then oxidized to form protoporphyrin III (IX) (this last intermediate adds ferrous iron to yield heme); certain porphyrinogens are elevated in certain porphyrias.
Farlex Partner Medical Dictionary © Farlex 2012

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