<prompt> All of the following are true about Hepcidin exceptIt is a 25- amino acid peptide secreted by Kupffer cellsDecreases duodenal absorption of ironIt regulates activity of transpoers DMT - 1 and ferropoin - 1Mice with enhanced hepcidin expression have elevate body iron stores  <response>: Hepcidin, a 25-amino acid peptide secreted by hepatic Kupffers cells downregulates duodenal iron absorption by regulating DMT1 activity as well as other proteins in the iron-responsive pathways e.g., FP1. Hepcidin is a negative regulator of iron absorption because mice that fail to express hepcidin have elevated body iron stores, whereas mice with enhanced hepcidin expression have profound iron deficiency. . 