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Κυριακή 4 Φεβρουαρίου 2018

Bilirubin in the Liver–Gut Signaling Axis

Publication date: Available online 3 February 2018
Source:Trends in Endocrinology & Metabolism
Author(s): Abdul-Rizaq Hamoud, Lauren Weaver, David E. Stec, Terry D. Hinds
Bilirubin is a component of the heme catabolic pathway that is essential for liver function and has been shown to reduce hepatic fat accumulation. High plasma bilirubin levels are reflective of liver disease due to an injurious effect on hepatocytes. In healthy liver, bilirubin is conjugated and excreted to the intestine and converted by microbes to urobilinoids, which are reduced to the predominant pigment in feces, stercobilin, or reabsorbed. The function of urobilinoids in the gut or their physiological relevance of reabsorption is not well understood. In this review, we discuss the relationship of hepatic bilirubin signaling to the intestinal microbiota and its regulation of the liver–gut axis, as well as its capacity to mediate these processes.



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