Featured Research

from universities, journals, and other organizations

Hypertension In Blacks: Dietary Salt Plays Key Role

Date:
July 20, 1997
Source:
University of Maryland, Baltimore
Summary:
The first study ever to focus on high blood pressure and dietary salt in African Caribbeans living in England found many undiagnosed cases of hypertension and more whose medications were not adequately controlling their high blood pressure.

Embargoed for July 20, 1997

Hypertension in BlacksDIETARY SALT PLAYS KEY ROLE

A study of first and second-generation African Caribbeans living in the West Midlands of England found many undiagnosed cases of high blood pressure and more whose blood pressure medications were not adequately controlling their hypertension.

The study is the first to focus on blood pressure, dietary salt intake and salt sensitivity among both first and second-generation African Caribbeans living in the United Kingdom. It is one of the largest studies ever to examine the effects of dietary salt on blood pressure in a black population.

Dr. Elijah Saunders, head of the Division of Hypertension at the University of Maryland School of Medicine, will present his preliminary findings on July 21 to the 12th International Conference on Hypertension in Blacks, in London, England. A co-founder and current chairman of the board of the society sponsoring the conference, he directed the six-week study of 150 African Caribbeans living in Birmingham and Wolverhampton.

Participants had their blood pressure, pulse rate, height and weight measured at a baseline screening prior to the study. Blood and 24-hour urine examinations were done at baseline. and then weekly for three weeks while the subjects ate their normal diets, usually high in salt. Blood pressure, pulse, weight and 24-hour urine exams (for salt) were repeated weekly for a total of six weeks. During the last three weeks the subjects ate diets containing 50 percent less salt than at baseline.

Preliminary results suggest that on the salt-restricted diets, most subjects lost weight and their blood pressure dropped.

"We were not surprised to see high blood-pressure rates nearly twice that of whites, and we were not surprised to find a significant amount of obesity and diets excessively high in salt—we have seen this phenomenon in African Americans," Saunders said.

Some surprises did await the researchers, though. "Not only was a significant amount of hypertension undiagnosed, but many people who were being treated had blood pressures that were not being very well controlled by their medication," Saunders said.

Another surprise, he said, was that some doctors and patients did not seem to be aware of just how serious a condition high blood pressure can be in blacks. With complications including diabetes, kidney disease, stroke and heart disease, untreated or inadequately treated hypertension is probably the number one killer in the Western world, Saunders said.

In other research reported at the London conference, Saunders and colleague, Dr. Matthew Weir, head of the Division of Nephrology at the University of Maryland School of Medicine, reported that certain kinds of high blood-pressure medications are less effective in black people when used in the usual doses and/or when there is an excessive amount of salt in their diet. "There are ethnic differences in response to some medication, and physicians need to be aware of this," Saunders said.

The four-day international conference in London is focusing on new ways to prevent and control high blood pressure and the organ damage it can cause. The scientific meeting is sponsored by the International Society on Hypertension in Blacks, a nonprofit organization dedicated to improving the health and life expectancy of ethnic populations in the United States and around the world.

The society was founded in Atlanta, Georgia, in 1986 to respond to the problem of high blood pressure among people of African descent. It has since expanded its organizational scope and now implements programs to address other medical conditions which affect black people and other minorities disproportionately, including kidney disease, diabetes, stroke, and some heart disease. It publishes a medical journal called Ethnicity and Disease.END


Story Source:

The above story is based on materials provided by University of Maryland, Baltimore. Note: Materials may be edited for content and length.


Cite This Page:

University of Maryland, Baltimore. "Hypertension In Blacks: Dietary Salt Plays Key Role." ScienceDaily. ScienceDaily, 20 July 1997. <www.sciencedaily.com/releases/1997/07/970718111537.htm>.
University of Maryland, Baltimore. (1997, July 20). Hypertension In Blacks: Dietary Salt Plays Key Role. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/1997/07/970718111537.htm
University of Maryland, Baltimore. "Hypertension In Blacks: Dietary Salt Plays Key Role." ScienceDaily. www.sciencedaily.com/releases/1997/07/970718111537.htm (accessed August 20, 2014).

Share This




More Health & Medicine News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: World's Oldest Man Lives in Japan

Raw: World's Oldest Man Lives in Japan

AP (Aug. 20, 2014) A 111-year-old Japanese was certified as the world's oldest man by Guinness World Records on Wednesday. Sakari Momoi, a native of Fukushima in northern Japan, was given a certificate at a hospital in Tokyo. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Ebola-Hit Sierra Leone's Freetown a City on Edge

Ebola-Hit Sierra Leone's Freetown a City on Edge

AFP (Aug. 19, 2014) Residents of Sierra Leone's capital voice their fears as the Ebola virus sweeps through west Africa. Duration: 00:56 Video provided by AFP
Powered by NewsLook.com
101-Year-Old Working Man Has All The Advice You Need

101-Year-Old Working Man Has All The Advice You Need

Newsy (Aug. 19, 2014) Herman Goldman has worked at the same lighting store for almost 75 years. Find out his secrets to a happy, productive life. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins