Friday, October 14, 2011

Hemoglobin

Hemoglobin is also found outside red blood cells and their progenitor lines. Other cells that contain hemoglobin include the A9 dopaminergic neurons in the substantia nigra, macrophages, alveolar cells, and mesangial cells in the kidney. In these tissues, hemoglobin has a non-oxygen-carrying function as an antioxidant and a regulator of iron metabolism.[6]

Hemoglobin variants are a part of the normal embryonic and fetal development,

http://en.wikipedia.org/wiki/Hemoglobin

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