Barely Significant
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The PICALM protein plays a key role in iron homeostasis and cell proliferation.

PLoS One · 2012 · PMC3431333 · PMID 22952941

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Although the difference did not reach statistical significance, PICALM rescued cells contained more iron than vector controls, further suggesting a role of PICALM in increasing cellular iron.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.