Iron is a critical component in the blood that enables oxygen to be carried from the lungs to muscles and the brain.
Mechanism
Synthesis from 3 studies
Iron is needed to build the oxygen-carrying part of red blood cells. Without enough iron, blood can't carry sufficient oxygen to muscles and the brain, causing those tissues to receive less oxygen than they need. This leads to reduced function and, over time, physical changes in the brain and blood...
Most probable mechanism
Iron is needed to make hemoglobin, the molecule in red blood cells that grabs oxygen in the lungs and carries it to muscles and the brain. Without enough iron, hemoglobin levels drop, so less oxygen gets delivered. The brain and muscles don't get enough oxygen, which causes them to work less efficiently and can even lead to tissue damage over time.
Iron is incorporated into heme groups during hemoglobin synthesis in erythrocyte precursors
Reduced hemoglobin concentration decreases arterial oxygen content, limiting oxygen delivery to peripheral and central tissues
Inadequate oxygen delivery triggers cellular hypoxia in vascular and neural tissues, impairing metabolic function
Chronic hypoxia reduces oxygen extraction efficiency and suppresses metabolic rate in oxygen-sensitive tissues such as the brain and vascular smooth muscle
Prolonged hypoxia induces structural changes in tissues, including atrophy of grey and white matter in the brain and phenotypic switching of vascular smooth muscle cells
Evidence from Studies
Supporting (3)
Community contributions welcome
Iron deficiency affects oxygen transport and activates HIF1 signaling pathway to regulate phenotypic transformation of VSMC in aortic dissection
Contradicting (0)
Community contributions welcome
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