In the intestine, bilirubin is converted by bacteria to stercobilinogen.
2.
Stercobilinogen is absorbed and excreted by either the liver or the kidney.
3.
Stercobilinogen is oxidized to stercobilin, which is responsible for the pigmentation of feces.
4.
It can also be reduced to stercobilinogen, which can then be further oxidized to stercobilin.
5.
Formed an unconjugated bilirubin entering the intestine, gives a large number of stercobilinogen ( urobilinogen ).
6.
In obstructive jaundice, no bilirubin reaches the small intestine, meaning that there is no formation of stercobilinogen.
7.
Specifically, urobilinogen can be reduced to form mesobilirubinogen, and mesobilirubinogen can be further reduced to form stercobilinogen.
8.
"' Stercobilinogen "'( fecal urobilinogen ) is a chemical created by bacteria in the gut.
9.
Urobilinogen ( aka D-urobilinogen ) is closely related to two other compounds : mesobilirubinogen ( aka I-urobilinogen ) and stercobilinogen ( aka L-urobilinogen ).
10.
In early liver disease, impaired biliary excretion causes sterocobilinogen to be absorbed mostly by the kidney, and, therefore, stercobilinogen will appear in the urine in excess as urobilinogen.
