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Intestinal iron absorption and mucosal transferrin in rats subjected to hypoxia
K R Osterloh1, R J Simpson, S Snape
1Division of Clinical Cell Biology, MRC Clinical Research Centre, Harrow, Middlesex, UK.
Blut
|November 1, 1987
Abstract:
Three days hypoxia (0.5 atm) increased the haemoglobin and haematocrit values in rats paralleled by enhanced intestinal iron absorption. The destination of recently-absorbed iron was primarily the erythropoietic system, viz. bone marrow, spleen and red cells. Total plasma transferrin, was increased by 30%, but no significant changes in mucosal transferrin were found. No increase in labelling of mucosal transferrin by absorbed iron was observed. These results suggest that mucosal transferrin does not play a major role in the regulation of intestinal iron absorption in hypoxia.