In the heart, the way hepcidin responds to iron levels is different from how it works in the liver - when the body is low on iron, the heart makes more hepcidin protein even though the gene for it is less active.

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The study shows an association between iron levels and hepcidin regulation in heart vs liver, but cannot establish causation due to study design limitations. 'Is regulated differently' is appropriate as it describes an observed association.

More Accurate Statement

“Cardiac hepcidin expression is associated with different regulation from hepatic hepcidin in response to iron levels, with cardiac hepcidin protein increasing during iron deficiency while transcript levels decrease.”

Evidence from Studies

Supporting (1)

An essential cell-autonomous role for hepcidin in cardiac iron homeostasis

Randomized Controlled Trial

Animal

2016 Nov 29

Contradicting (0)

No contradicting evidence found

Source Study

An essential cell-autonomous role for hepcidin in cardiac iron homeostasis

Score: 11

DOI: 10.7554/elife.19804

Similar Assertions

When the body is low on iron, the heart makes more hepcidin, which might help protect the heart from damage during iron deficiency.

91%

Giving iron directly into the bloodstream of mice with heart cell hepcidin deficiency stops their hearts from failing, proving that the heart problems are caused by the heart cells not getting enough iron.

81%

Heart cells make and release hepcidin using a process that requires the enzyme Furin, and they release more of it when the body is low on iron.

80%

When mice have heart cells that can't respond to hepcidin (because they have a special version of ferroportin), their hearts fail in the same way as when they don't have hepcidin at all, showing that hepcidin works by controlling ferroportin in heart cells.

79%

When mice lose the ability to make hepcidin in their heart cells, their heart cells don't get enough iron, which causes their hearts to weaken and eventually fail, even though their overall body iron levels are normal.

77%