(PHILADELPHIA) A novel signaling pathway plays a significant role in the production of aldosterone, a hormone that promotes heart failure after a myocardial infarction, according to a study conducted by Thomas Jefferson University researchers.

The findings, which will be published online this week in Proceedings of the National Academy of Sciences, show that aldosterone production is mediated by a protein called beta-arrestin-1. Beta-arrestin-1 binds to angiotensin II receptors when they are activated by angiotensin II.

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