HOME >> BIOLOGY >> NEWS
Does a new hypothesis help explain higher levels of hypertension among African-Americans?

(Atlanta, GA) Some 50 million Americans have high blood pressure, according to the American Heart Association, yet the prevalence of essential hypertension -- high blood pressure with no identifiable cause -- is much higher in African-Americans than in Caucasians. While this disparity is well documented, the mechanisms by which stress might contribute to these differences are far less clear.

Most studies have used a "reactivity hypothesis" to help identify the reasons behind the differences. This hypothesis assumes that blacks exhibit exaggerated blood pressure (BP) responses to stress which produce vascular damage that underlies the premature development of essential hypertension. An alternative to this widely accepted approach is the "pressure natriuresis" hypothesis. It supposes that stress-induced impaired sodium (salt) regulation leads to an extended period of elevated BP in blacks, and that the resulting increase in BP load leads to the early development of hypertension and its consequences.

A New Study

The latter approach has been put to the test by a team of researchers. The authors of a new study entitled "Race Differences in Stress-Induced Salt Sensitivity and Resulting Blood Pressure Load," are Gregory A. Harshfield, Martha E. Wilson, Kathryn McLeod, Coral Hanevold, Gaston Kapuka, Lynne Mackey, Lesley Edmunds and Delores Gillis, all of the Medical College of Georgia, Augusta, GA. They will present their findings during the upcoming scientific conference, Understanding Renal and Cardiovascular Function Through Physiological Genomics, a meeting of the American Physiological Society (APS) (www.the-aps.org), being held October 1-4, 2003 at the Radisson Riverfront Hotel and Convention Center, Augusta, GA.

Methodology

To test the hypothesis that stress is a contributing factor through its effects on pressure natriuresis (the excretion of sodium in urine, usually in exce
'"/>

Contact: Donna Krupa
djkrupa1@aol.com
703-527-7357
American Physiological Society
30-Sep-2003


Page: 1 2

Related biology news :

1. New genetic hypothesis for the cause of autism
2. A new hypothesis about autoimmunity. Is it possible to be too clean?
3. A new hypothesis on the origin of junk DNA
4. Missing genes may help explain why plague bacteria are so deadly
5. MIT team explains yin-yang of ginseng
6. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
7. Study explains spatial orientation differences between sexes
8. New model explains why costly insect outbreaks hard to predict
9. Brain serotonin enzyme finding might explain psychiatric disorders
10. Study helps explain island populations susceptibility to exotic diseases
11. Small gene changes in some leukemia patients may explain varying responses to chemotherapy

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/13/2020)... (PRWEB) , ... February 13, 2020 , ... ... announce an exclusive interview with Nobio CEO Yoram Ashery to discuss ... Nobio is a company that combats bacteria to keep people healthy with their ...
(Date:2/7/2020)... ... February 07, 2020 , ... dicentra , a ... product, nutraceutical and dietary supplement industries, announces 2020 membership with the International Probiotics ... and research pertaining to probiotics. We are thrilled to join our IPA member ...
(Date:2/1/2020)... ... February 01, 2020 , ... Liver cancer, called hepatocellular carcinoma (HCC), occurs each ... the disease. HCC is the 5th most common cancer and the 2nd leading cause ... comes to incidence of HCC, while China has half of all patients suffering from ...
Breaking Biology News(10 mins):
(Date:1/22/2020)... ... January 20, 2020 , ... ... with WAVE Electronics, the largest independent electronics distributor in the US, to make ... Smart Home Systems with leading smart home products from a single fulfillment partner. ...
(Date:1/22/2020)... ... January 21, 2020 , ... QCDx , a private biotech company ... blood draw, today announced the sale of the proprietary RareScope™ instrument to the Carole ... used in clinical cancer research. , “The RareScope can detect and isolate intact and ...
(Date:1/10/2020)... ... January 09, 2020 , ... GenScript Biotech ... GenScript Biotech Global Forum on Jan. 14 in San Francisco, coinciding with the ... Therapy and the Booming China Market," will feature gene and cell therapy leaders ...
(Date:1/7/2020)... ... January 07, 2020 , ... ... services, today announced the launch of its VivopureX™ recombinant mouse antibodies for in ... originally obtained from rats or hamsters, which Absolute Antibody has engineered into mouse-anti-mouse ...
Breaking Biology Technology:
Cached News: