coproporphyrin

(kop″ro-por┬┤fә-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.
Found on http://www.encyclo.co.uk/local/21001

coproporphyrin

A test which is used to measure red blood cell porphyrin levels. Porphyrins are pigments found in both animal and plant life. This test is useful in evaluating any number of porphyrin disorders (involving the various porphyrins) of red blood cells. Increased levels of coproporphyrins can indicate congenital erythropoietic porphyria or sideroblastic...
Found on http://www.encyclo.co.uk/local/20973

coproporphyrin

Type: Term Pronunciation: kop′rō-pōr′fi-rin Definitions: 1. 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.
Found on http://www.medilexicon.com/medicaldictionary.php?t=20308
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