High Blood Pressure Causes in African Americans
More than 40 percent of African Americans suffer from high blood pressure, agreeing to a study just released by the Centers for Disease operate (Cdc).
Many theories exist about why black Americans perceive higher levels of hypertension disease than other groups. One major study recomMend a connection in the middle of high levels of uric acid and hypertension among blacks as a inherent explanation. Researchers and curative professionals already know that inordinate levels of uric acid are a major cause of kidney disease. African Americans also perceive higher levels of kidney disease.
Other theories consist of a failure by physical systems to eliminate inordinate salt in the urine and the nearnessy of higher levels of the hormone aldosterone. Let's look briefly at each of these.
Do High Uric Acid Levels Cause Hypertension?
Study results, published in the American Heart Association's Hypertension Journal in 2006, revealed a stronger connection in the middle of high uric acid levels and high blood pressure (Hbp) among African Americans than for other groups. The level of uric acid in the body is influenced by diet. For example, eating large amounts of protein can increase uric acid levels.
Usually, uric acid is eliminated straight through urine. But, when the body produces inordinate amounts of uric acid and the kidneys fail to remove sufficient of it, then it can build up in the blood.
None of the 9,104 particiPants in the study, conducted by Wake Forest University Baptist curative Center, had Hbp when the study began. ParticiPants represented many races and ethnic groups and ranged in age from 45 to 64. This was the first time that African Americans had been included in this type of study in numbers that were statistically significant. All particiPants' blood pressure and uric acid levels were examined every three years.
Participants whose uric acid levels registered in the highest quartile had an increased risk for high blood pressure of about 15 percent. The strongest link in the middle of uric acid and hypertension was found among black Men. The interracial findings were particularly telling. African American woMen whose results registered in the highest quartile were at a 30 percent higher risk for hypertension than African American women who ranked in the bottom quartile. African American men in the highest percentile had duplicate the risk of African American men in the bottom percentile.
The implications from the study propose that if doctors can lower uric acid levels in patients, they might be able to forestall or operate high blood pressure in black Americans and other groups with higher than normal levels. A blood test for uric acid levels could predict either an private was at risk.
Does inordinate Salt in the Urine Cause Hbp?
In a salutary body, stress is relieved by the release of sodium into the bloodstream. That salt is then later removed from the body straight through urine. However, in a up-to-date study, researchers found that this fail-safe theory breaks down in about one-third of African American youths. The result is that inordinate salt levels remain in the body, putting them at risk for high blood pressure now and as they grow older.
The study of 168 black and white youths by researchers at the curative College of Georgia found vital differences in the middle of the functioning of this natural blood pressure regulator theory in the two groups. The system, known as renin-angiotensin-aldosterone (Raas), works by instructing the kidneys to preserve salt when blood pressure is too low and excrete it as urine when it is too high.
Researchers are doing supplementary studies to conclude either a genetic mutation may interfere with the allowable release of salts from the kidneys in African Americans.
Is Too Much Aldosterone the Cause?
Another inherent cause may be aldosterone, agreeing to a study conducted at the curative College of Wisconsin. Aldosterone is a hormone secreted by the adrenal glands that causes kidneys to preserve salt.
The study, whose findings appeared in the September 17, 2009, edition of the American Journal of Hypertension, compared African Africans with Hbp to those without it. The 224 blacks with Hbp had statistically vital higher levels of aldosterone than the 217 blacks who did not have it.
The research, funded by the National Institutes of Health's National Heart, Lung and Blood build for more than a decade, suggests that aldosterone not only contributes to high blood pressure but to heart, kidney, and blood vessel diseases among African Americans as well.
Researchers continue to study these and other theories that may one day tell the key to preventing high blood pressure among all groups.
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