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Relationship of sodium to angiotensin

WillowJ

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http://health.clevelandclinic.org/2015/06/if-you-have-high-blood-pressure-salt-still-matters/

excerpt:
That’s exactly what Dr. Karnik and his team have done. In their research, they uncovered the exact structure of AT1R.

But they also made a surprising discovery along the way: AT1R binds not only to angiotensin, but also to sodium. This knowledge suggests — for the first time — that AT1R serves as a sensor of the sodium level in the blood.

AT1R is an angiotensin receptor.