bilirubin

• In the liver, Mrp2 transports bilirubin-glucuronide, glutathione (GSH), and drug conjugates into bile, whereas Mrp3 and Mrp4 efflux these entities into blood. —  CiteULike: Everyone's library
• [7] The major components of bile include cholesterol, phospholipids, bilirubin (a metabolite of red blood cell hemoglobin), and bile salts. —  CreationWiki - Recent changes [en]
• Slide 8: Labs: bilirubin, alkaline phosphatase, Hb / Hct   Radiographic  —  Recently Uploaded Slideshows
• The yellow pigment is from bilirubin, a byproduct of old red blood cells that don't get filtered out by the liver. —  Gawker
• In the new study, Cary Pirone and colleagues note that bilirubin is a brownish yellow substance resulting from the liver's breakdown of hemoglobin, the red pigment that carries oxygen in the blood.

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