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FXR

FXR

The farnesoid X receptor (FXR) is a nuclear receptor superfamily member and ligand-activated transcription factor. By binding to DNA as a monomer or a heterodimer with the common NR partner, retinoid x receptor (RXR), to FXR response elements, FXR controls the expression of numerous genes. Two known FXR genes exist, the FXRα and FXRβ.

FXR is primarily expressed in the liver and small intestine, where it is critical for the metabolism of bile acids, lipids, and glucose. FXR regulates bile acid (BA) synthesis and homeostasis, glucose and lipid metabolism, as well as playing a significant role in intestinal bacterial growth and liver regeneration through its specific target genes. 

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