Genetic Data Related to Sodium-Regulating Hormone May Help Explain Hypertension Risk
New research points to the existence of a gene on chromosome 5 that influences how much aldosterone is produced.
New research points to the existence of a gene on chromosome 5 that influences how much aldosterone is produced — which may be excessive in African-descended populations.
"Aldosterone was very important to their early ancestors living in the arid climate of Africa," said J. Howard Pratt, study co-author. "Dietary intake of sodium in today's world is much higher, and there may not be the need for the amount of aldosterone produced, leading to a level of sodium balance that places individuals at risk for hypertension."
Among people of African descent, plasma concentrations of the sodium-regulating hormone, aldosterone, are under genetic influences and are associated with higher diastolic blood pressure readings, new research shows.
Aldosterone is produced by the adrenal gland. It regulates a region in the kidney called the distal nephron, which is critically important for controlling sodium balance and blood pressure.
The study examined genetic data fr
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