Definitions for urobilinogen
uro·bilino·gen

Princeton's WordNetRate this definition:0.0 / 0 votes

1. urobilinogen, stercobilinogennoun

   a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine

WiktionaryRate this definition:0.0 / 0 votes

1. urobilinogennoun

   A colourless product of bilirubin reduction, formed in the intestines by bacterial action.

WikipediaRate this definition:0.0 / 0 votes

1. Urobilinogen

   Urobilinogen is a colorless 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 brownish colour stercobilin, which gives the feces their characteristic color. It can also be reduced to stercobilinogen, which can then be further oxidized to stercobilin. 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.

ChatGPTRate this definition:0.0 / 0 votes

1. urobilinogen

   Urobilinogen is a colorless by-product of bilirubin reduction, produced in the intestines by bacteria. It is normally present in urine in low concentrations and plays a vital role in the digestion of dietary fats. It is also responsible for giving urine its yellow color. High levels of urobilinogen in the urine can be an indicator of liver disease or other medical conditions.

WikidataRate this definition:1.0 / 1 vote

1. Urobilinogen

   Urobilinogen is a colourless product of bilirubin reduction. It is formed in the intestines by bacterial action. Some urobilinogen is reabsorbed, taken up into the circulation and excreted by the kidney. This constitutes the normal "enterohepatic urobilinogen cycle". Increased amounts of bilirubin are formed in hemolysis, which generates increased urobilinogen in the gut. In liver disease, 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 then oxidized to brown stercobilin, which gives the feces their characteristic color. 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.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Urobilinogen

   A colorless compound formed in the intestines by the reduction of bilirubin. Some is excreted in the feces where it is oxidized to urobilin. Some is reabsorbed and re-excreted in the bile as bilirubin. At times, it is re-excreted in the urine, where it may be later oxidized to urobilin.

Matched Categories

1. • Chromogen

How to pronounce urobilinogen?

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Numerology

1. Chaldean Numerology

   The numerical value of urobilinogen in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of urobilinogen in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=urobilinogen
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Urobilinogen
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Urobilinogen
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=urobilinogen