What does salt sensitive mean?
Usually, salt sensitivity is arbitrarily defined as an increase in blood pressure of 10% or greater during a high salt diet than that during a low salt diet.
How does salt sensitivity contribute to hypertension?
Salt sensitivity is a key element in the pathophysiology of hypertension. It is involved in both mechanisms of hypertension (a) increased pulse volume and inability to excrete sodium in the urine and (b) endothelial dysfunction and increased peripheral resistance.
How do I know if I have salt sensitive hypertension?
If blood pressure increases by at least 5% at the end of the high-sodium period, the person is said to be salt-sensitive. Otherwise, he or she is salt-resistant or salt-insensitive (1).
How common is salt sensitive hypertension?
Those with a decrease in blood pressure between 6 and 9 mm Hg were considered indeterminate. We found that 26% of the normotensive subjects were salt sensitive and 58% were salt resistant; in the hypertensive group, 51% were sensitive and 33% were resistant.
How do you treat salt sensitive blood pressure?
Summary: A new study has found that an alpha adrenoceptor blocker (a class of drugs that relaxes smooth muscle or blood vessels) may represent a new treatment approach for patients with salt sensitive hypertension.
Is salt sensitivity genetic?
Salt sensitivity is an independent CVD and mortality risk factor, which is present in both hypertensive and normotensive populations. It is genetically determined and it may affect the relationship between salt taste perception and salt intake.
Can a person be salt sensitive?
The reports indicated that too much salt can upset your body’s fluid balance, and that can lead to high blood pressure. In recent years, however, medical scientists have learned that some people are salt- sensitive while others are not, and that salt sensitivity may be determined by your genes.
Is there a cure for salt sensitivity?
A new BUSM study has found that an alpha adrenoceptor blocker (a class of drugs that relaxes smooth muscle or blood vessels) may represent a new treatment approach for patients with salt sensitive hypertension.
Who is at greatest risk for being salt sensitive?
An estimated one out of four people is salt-sensitive, but the condition is most common in the elderly, African-Americans, and those with high blood pressure.
How do you control salt sensitivity?
Limit your intake of processed foods, such as cured meats, frozen dinners and canned soups, stews and chili. Limit snack foods such as pretzels, chips, crackers, pickles and olives. Read food labels. Even foods that don’t taste salty, such as cookies, cakes, candy and soft drinks, may be high in salt.
What is salt sensitivity and how does it affect blood pressure?
Salt sensitivity is a measure of how your blood pressure responds to salt intake. People are either salt-sensitive or salt-resistant. Those who are sensitive to salt are more likely to have high blood pressure than those who are resistant to salt.
Is blood pressure sensitive to salt in adolescents?
A recent report of observations in 46 essential hypertensive patients suggests that salt sensitivity of blood pressure can be observed only in individuals over the age of 45 years. 40 However, reports of salt sensitivity in obese adolescents would imply that it can occur in younger subjects as well. 24
What is salt sensitivity and how is It measured?
Unfortunately, however, there is no universal definition of salt sensitivity and the method to assess salt sensitivity varies from one study to another. In most studies, salt sensitivity is defined as the acute blood pressure change in mean blood pressure corresponding to a decrease or increase of sodium intake.
Is there a genetic basis for “salt sensitive” hypertension?
Recently, a genetic basis for other forms of “salt-sensitive” hypertension, that resulting from a chimeric mutation of the 11β-hydroxylase/aldosterone synthase gene (glucocorticoid remediable hypertension) 48 as well as that resulting from a mutation in the β-subunit of the epithelial sodium channel (Liddle’s syndrome), 49 has been described.