Higher iron levels may protect arteries but raise clot risk
Having higher natural levels of iron could be both good and bad for cardiovascular health, according to new research. On one hand, it may lower the risk of clogged arteries, but on the other hand, it may raise the risk of blood clots related to reduced flow.
These were the conclusions of a large study that examined the relationship between people's natural iron levels and three measures of cardiovascular disease: carotid artery wall thickness,deep vein thrombosis (DVT), and carotid artery plaque.
Thickening of the vessel wall and the buildup of plaque in the carotid artery are both signs of atherosclerosis.
DVT occurs when a blood clot, or thrombus, forms in a deep vein. DVT typically affects the leg.
The researchers found that having higher levels of iron appears to raise the risk of DVT yet reduce the risk of carotid plaque. There was "no significant effect" on carotid artery wall thickness.
They report their findings in a recentJournal of the American Heart Association study paper.
"These results," write the authors, "are consistent with previous studies that suggest higher iron status has a protective role in atherosclerosis but increases the risk of thrombosis related to stasis of blood."
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