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- Urobilinogen abstract "Urobilinogen is a colourless by-product of bilirubin reduction. It is formed in the intestines by bacterial action on bilirubin. About half of the urobilinogen formed is reabsorbed and taken up via the portal vein to the liver, enters circulation and is excreted by the kidney.Increased amounts of bilirubin are formed in hemolysis, which generates increased urobilinogen in the gut. In liver disease (such as hepatitis), the intrahepatic urobilinogen cycle is inhibited also increasing urobilinogen levels. Urobilinogen is converted to the yellow pigmented urobilin apparent in urine.The urobilinogen in the intestine is directly reduced to brown stercobilin, which gives the feces their characteristic color. It can also be reduced to stercobilinogen, which can then be further oxidized to stercobilin. This constitutes the normal \"enterohepatic urobilinogen cycle\".In biliary obstruction, below-normal amounts of conjugated bilirubin reach the intestine for conversion to urobilinogen. With limited urobilinogen available for reabsorption and excretion, the amount of urobilin found in the urine is low. High amounts of the soluble conjugated bilirubin enter the circulation where they are excreted via the kidneys. These mechanisms are responsible for the dark urine and pale stools observed in biliary obstruction.Low urine urobilinogen may result from complete obstructive jaundice or treatment with broad-spectrum antibiotics, which destroy the intestinal bacterial flora. (Obstruction of bilirubin passage into the gut or failure of urobilinogen production in the gut.)Low urine urobilinogen levels may result from congenital enzymatic jaundice (hyperbilirubinemia syndromes) or from treatment with drugs that acidify urine, such as ammonium chloride or ascorbic acid.Elevated levels may indicate hemolytic anaemia (excessive breakdown of red blood cells RBC ), overburdening of the liver, increased urobilinogen production, re-absorption - a large hematoma, restricted liver function, hepatic infection, poisoning or liver cirrhosis.".
- Urobilinogen thumbnail Structure_of_urobilinogen.png?width=300.
- Urobilinogen wikiPageExternalLink show_image?L6&up.
- Urobilinogen wikiPageID "2997400".
- Urobilinogen wikiPageLength "4950".
- Urobilinogen wikiPageOutDegree "14".
- Urobilinogen wikiPageRevisionID "688971510".
- Urobilinogen wikiPageWikiLink Ammonium_chloride.
- Urobilinogen wikiPageWikiLink Ascorbic_acid.
- Urobilinogen wikiPageWikiLink Bacteria.
- Urobilinogen wikiPageWikiLink Bilirubin.
- Urobilinogen wikiPageWikiLink Category:Hepatology.
- Urobilinogen wikiPageWikiLink Category:Tetrapyrroles.
- Urobilinogen wikiPageWikiLink Ehrlichs_reagent.
- Urobilinogen wikiPageWikiLink Hematoma.
- Urobilinogen wikiPageWikiLink Hemolysis.
- Urobilinogen wikiPageWikiLink Para-Dimethylaminobenzaldehyde.
- Urobilinogen wikiPageWikiLink Stercobilin.
- Urobilinogen wikiPageWikiLink Stercobilinogen.
- Urobilinogen wikiPageWikiLink Urobilin.
- Urobilinogen wikiPageWikiLinkText "Urobilinogen".
- Urobilinogen wikiPageWikiLinkText "Urobilinogen#Ehrlich unit".
- Urobilinogen wikiPageWikiLinkText "Urobilinogen#Ehrlich_unit".
- Urobilinogen wikiPageWikiLinkText "urobilinogen".
- Urobilinogen imagefile "Structure of urobilinogen.png".
- Urobilinogen imagesize "250".
- Urobilinogen verifiedrevid "441677480".
- Urobilinogen watchedfields "changed".
- Urobilinogen wikiPageUsesTemplate Template:Cascite.
- Urobilinogen wikiPageUsesTemplate Template:Chembox.
- Urobilinogen wikiPageUsesTemplate Template:Chembox_Hazards.
- Urobilinogen wikiPageUsesTemplate Template:Chembox_Identifiers.
- Urobilinogen wikiPageUsesTemplate Template:Chembox_Properties.
- Urobilinogen wikiPageUsesTemplate Template:Heme_metabolism_intermediates.
- Urobilinogen wikiPageUsesTemplate Template:Reflist.
- Urobilinogen wikiPageUsesTemplate Template:Tetrapyrroles.
- Urobilinogen subject Category:Hepatology.
- Urobilinogen subject Category:Tetrapyrroles.
- Urobilinogen type ChemicalCompound.
- Urobilinogen type ChemicalSubstance.
- Urobilinogen type Chemical.
- Urobilinogen type Macrocycle.
- Urobilinogen type Specialty.
- Urobilinogen type ChemicalObject.
- Urobilinogen type Thing.
- Urobilinogen type Q11173.
- Urobilinogen comment "Urobilinogen is a colourless by-product of bilirubin reduction. It is formed in the intestines by bacterial action on bilirubin. About half of the urobilinogen formed is reabsorbed and taken up via the portal vein to the liver, enters circulation and is excreted by the kidney.Increased amounts of bilirubin are formed in hemolysis, which generates increased urobilinogen in the gut.".
- Urobilinogen label "Urobilinogen".
- Urobilinogen sameAs Q57054.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Ουροχολινογόνο.
- Urobilinogen sameAs Urobilinógeno.
- Urobilinogen sameAs اوروبیلینوژن.
- Urobilinogen sameAs Urobilinogène.
- Urobilinogen sameAs Urobilinóxeno.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Urobilinogeno.
- Urobilinogen sameAs ウロビリノーゲン.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Urobilinogênio.
- Urobilinogen sameAs m.08jl9j.
- Urobilinogen sameAs Уробилиноген.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Urobilinogen.
- Urobilinogen sameAs Q57054.
- Urobilinogen wasDerivedFrom Urobilinogen?oldid=688971510.
- Urobilinogen depiction Structure_of_urobilinogen.png.
- Urobilinogen isPrimaryTopicOf Urobilinogen.