Navigation Links
Low potassium linked to high blood pressure

As a risk factor for high blood pressure, low levels of potassium in the diet may be as important as high levels of sodiumespecially among African Americans, according to research being presented at the American Society of Nephrology's 41st Annual Meeting and Scientific Exposition in Philadelphia, Pennsylvania.

"There has been a lot of publicity about lowering salt or sodium in the diet in order to lower blood pressure, but not enough on increasing dietary potassium," comments lead author Susan Hedayati, MD, of the University of Texas Southwestern Medical Center in Dallas, Texas, and the Dallas VA Medical Center. The new study suggests that low potassium may be a particularly important contributor to high blood pressure among African Americans, and also identifies a gene that may influence potassium's effects on blood pressure.

The researchers analyzed data on approximately 3,300 subjects from the Dallas Heart Study, about half of whom were African American. The results showed that the amount of potassium in urine samples was strongly related to blood pressure. "The lower the potassium in the urine, hence the lower the potassium in the diet, the higher the blood pressure," says Dr. Hedayati. "This effect was even stronger than the effect of sodium on blood pressure."

The relationship between low potassium and high blood pressure remained significant even when age, race, and other cardiovascular risk factorsincluding high cholesterol, diabetes, and smokingwere taken into account.

Previous studies, including the landmark "Dietary Approaches to Stop Hypertension" study (DASH), have linked potassium deficiency to high blood pressure. The new results support this conclusion, and provide important new data on the relationship between potassium and blood pressure in a sample that was 50% African American. "Our study included a high percentage of African-Americans, who are known to consume the lowest amounts of potassium in the diet," according to Dr. Hedayati.

Research performed in the laboratory of Dr. Chou-Long Huang, a co-author of this study, has found evidence that a specific gene, called WNK1, may be responsible for potassium's effects on blood pressure. "We are currently doing more research to test how low potassium in the diet affects blood pressure through the activity of this gene," adds Dr. Hedayati.

The conclusions are limited by the fact that people in the Dallas Heart Study weren't following any specific diet. The researchers are currently performing a study in which participants are on fixed potassium diets while measuring the activity of the WNK1 gene to see if WNK1 is responsible for this phenomenon.

Meanwhile, they urge efforts to increase the amount of potassium in the diet, as well as lowering sodium. "High-potassium foods include fruits such as bananas and citrus fruits and vegetables," says Dr, Hedayati. "Consuming a larger amount of these foods in the diet may lower blood pressure."


Contact: Shari Leventhal
American Society of Nephrology

Related medicine news :

1. A drug-sensitive traffic cop tells potassium channels to get lost
2. Watson Receives FDA Approval of Potassium Chloride Extended-Release Capsules
3. Unilever Unveils Promise(R) SuperShots(R) for Blood Pressure, the First Functional Shot to Increase Daily Potassium Intake to Help Reduce the Risk of High Blood Pressure
4. Pot bellies linked to early signs of cardiovascular disease
5. Diet high in meat, fat and refined grains linked to risk for colon cancer recurrence, death
6. Immune deficiency linked to a type of eye cancer
7. Drop in breast cancer incidence linked to hormone use, not mammograms
8. Clinical depression linked to abnormal emotional brain circuits
9. Air pollution linked to cardiovascular risk indices in healthy young adults
10. High pollution linked to poor lung function growth in children in Mexico City
11. Early Weight Loss in Women Linked to Dementia
Post Your Comments:
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... ... a safe and convenient way to dispense prescription medications at home, so he ... effective way to monitor and dispense prescription medications. In doing so, it could ...
(Date:11/27/2015)... ... November 27, 2015 , ... ProSidebar: Fashion is ... Pro X. With ProSidebar: Fasion, video editors can easily add an informative sidebar ... minimalist title opener. Utilize presets featuring self-animating drop zones, lines, bars, and text ...
(Date:11/27/2015)... ... , ... A simply groundbreaking television series, "Voices in America", which is hosted ... array of issues that are presently affecting Americans. Dedicated to providing the world with ... changing the subjects consumers focus on, one episode at a time. , In ...
(Date:11/27/2015)... ... November 27, 2015 , ... ... successful and prominent nonprofit healthcare organizations in the country. They have overseen financial ... organizations, and helped advance the healthcare industry as a whole through their advocacy ...
(Date:11/26/2015)... (PRWEB) , ... November 26, 2015 , ... ... substance abuse located in central Michigan, have come together on Thanksgiving Day to ... produced video, available for viewing on the Serenity Point YouTube channel, patients displayed ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... total global healthcare industry is expected to grow at a ... has the highest projected growth at 12.7%, and ... ), is second with growth projected at 11.5%. ... In 2013-2014, total government funded healthcare was nearly 68%. Federal ... in 2013-2014. In real terms, out of pocket expenditure increased ...
(Date:11/25/2015)... , Nov. 25, 2015  The American Academy ... Gynecologists (ACOG), and the March of Dimes cheered ... Protecting Our Infants Act of 2015 (S.799), ... of newborns born exposed to drugs, such as ... bill,s introduction, all three organizations have worked together ...
(Date:11/25/2015)... , Nov. 25, 2015 AAIPharma ... planned investment of at least $15.8  Million to ... Wilmington, NC . The expansion will ... to meet the growing demands of the pharmaceutical ... site expansion will provide up to 40,000 ...
Breaking Medicine Technology: