American Heritage® Dictionary of the English Language, Fourth Edition
- n. A green pigment, C33H34N4O6, occurring in bile and sometimes formed by oxidation of bilirubin.
Century Dictionary and Cyclopedia
- n. The green pigment found in the bile of herbivorous animals, to which the formula C16H20N2O5 has been given. It is produced artificially by the oxidation of bilirubin. See biliprasin.
- n. biochemistry A green tetrapyrrolic bile pigment, a product of heme catabolism, responsible for the yellowish colour in bruises.
GNU Webster's 1913
- n. (Physiol.) A green pigment present in the bile, formed from bilirubin by oxidation.
- German : Latin bīlis, bile + French verdir, to make green; see verdant. (American Heritage® Dictionary of the English Language, Fourth Edition)
“When the heme spills out, it is broken down to biliverdin, which is green.”
“You need to understand how colors blend together to really appreciate it, but you can watch a bruise start out very dark (lotsa red pigment), then as it spreads out you'll see some greeen biliverdin around the edges, then later some yellow bilirubin when it really starts to spread out, and finally the bruise looks brown right before it goes away.”
“Remember, the progression goes from heme (red), to biliverdin (green), to bilirubin (yellow), to stercobillin (brown).”
“The inducible phase II enzyme HO-1, together with the constitutively expressed isoenzyme HO-2, degrades free heme into three products: carbon monoxide (CO), biliverdin (which is rapidly converted to bilirubin), and free iron”
“Hemoglobin is metabolized into iron, carbon monoxide, and biliverdin by heme oxygenase.”
“The scientists used X-ray diffraction analysis to determine the 3D structure of the enzyme at atomic resolution both alone and in complex with its natural substrate, the green biliverdin IXa.”
“In a formal four-electron reduction, the substrate biliverdin IX to yield 3Z-PEB, a reaction that commonly requires the action of two individual FDBRs.”
“The first reaction catalyzed by PebS is the reduction of the 15,16-methine bridge of the biliverdin tetrapyrrole system.”
“The vomitus was at first composed of the gastric contents, the bile of a peculiarly pure, grass-green, biliverdin color mixed with a yellowish chyme-like material, and in the later stages of the disease showed thin masses having a fecal odor_ (ileus paralyticus).”
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