bile pigment


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Related to bile pigment: bilirubin

pigment

 [pig´ment]
1. any coloring matter of the body.
2. a stain or dyestuff.
3. a paintlike medicinal preparation applied to the skin. adj., adj pig´mentary.
bile pigment any of the coloring matters of the bile, derived from heme, including bilirubin, biliverdin, and several others.
blood pigment (hematogenous pigment) any of the pigments derived from hemoglobin, such as hematoidin, hematoporphyrin, hemofuscin, and methemoglobin.
lipid pigment any of various pigments having lipid characteristics, some of which also contain protein or iron, the most important one being lipofuscin.
respiratory p's substances, e.g., hemoglobin, myoglobin, or cytochromes, which take part in the oxidative processes of the animal body.
retinal p's the photopigments in retinal rods and cones that respond to certain colors of light and initiate the process of vision.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bile pigment

Any of the complex, highly colored waste products of the hemoglobin of old red blood cells, found in the bile. Included are bilirubin (orange), biliverdin (green), their derivatives (urobilinogen, urobilin, bilicyanin, and bilifuscin), and stercobilin, which gives brown color to intestinal contents and feces. Van den Bergh's test is used to detect the type of bilirubin in the blood serum.
Synonym: hepatogenous pigment
See also: pigment
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
As a similar liver product, bilirubin, is known to be toxic to human malaria parasites, the group is also conducting studies to see how the green bile pigment from these lizards affects malaria and other parasites.
In addition to the bile pigment, the heme-to-bilirubin conversion system also generates carbon monoxide and free iron [35].
In view of these observations and the fact that the bile pigment associates stronglywith membranes, our work suggested that one beneficial role of the waste product bilirubin may be to act as a powerful biological chain-breaking antioxidant.
The liver, it seemed, was not breaking up the hemoglobin to bile pigment. Instead, it was changing some of the hemoglobin to the gold-containing variety and getting rid of it by way of eggshell.
Percentage 1 Proteinuria 27 90 2 Cast (hyaline and granular) 19 63.33 3 Red blood cells 16 53.33 4 Bile salt and bile pigment 15 50 Table 4.
Histopathological examination using H&E stained sections of liver samples of control group showed normal hepatic architecture, whereas examination of liver sections of animals treated with EE & CPZ showed numerous apoptotic figures, pyknosis and karyolysis associated with mononuclear cellular infiltration and green to yellowish brown areas of intracellular bile pigments (Figure 1(b)).
Chemical structure of a new family of bile pigments from human urine.
In bile, mixed micelle formation with cholesterol, phospholipids, bile pigments, proteins, and inorganic electrolytes protects cholangiocytes from the toxic detergent effect of bile acid salts.
Most gallstones are collections of cholesterol and bile pigments from the breakdown of red blood cells.
It contains swallowed amniotic fluid, bile salts, bile pigments, cholesterol, mucin, pancreatic enzymes, intestinal enzymes, squamous cells, lanugo hair and other cellular debris.[sup.7]
It consists primarily of water; cholesterol; hormones, including steroids--endogenous and exogenous; and broken-down fatty acids, as well as old antibodies, lecithin, poisons (including drugs), inorganic salts, bile salts, and bile pigments made from old broken-down red blood cells.
A successful KP re-establishes bile drainage with return of bile pigmented stools, clearance of jaundice and normalization of serum bilirubin by three months of age.