Navigation Links
Boston University School of Medicine researchers clarify link between salt and hypertension
Date:1/11/2012

(Boston) A review article by researchers at Boston University School of Medicine (BUSM) debunks the widely-believed concept that hypertension, or high blood pressure, is the result of excess salt causing an increased blood volume, exerting extra pressure on the arteries. Published online in the Journal of Hypertension, the study demonstrates that excess salt stimulates the sympathetic nervous system to produce adrenalin, causing artery constriction and hypertension.

The research was led by Irene Gavras, MD, and Haralambos Gavras, MD, both professors of medicine at BUSM.

"The purpose of this paper is to correct an erroneous concept that has prevailed for many years, even though scientific evidence has mounted against it," said Irene Gavras, who is also a physician in Boston Medical Center's Hypertension practice.

The term "volume-expanded hypertension" implies that excess salt leads to the retention of extra fluid within the arterial circulatory system, causing an increase in blood volume and added pressure on the arterial walls. However, research has shown that conditions characterized by the expansion of blood volume from other causes, such as the secretion of antidiuretic hormone or the excessive elevation of blood sugar, do not cause a rise in blood pressure because the extra fluid is accommodated by the distention of capillaries and veins.

"The body's circulatory system is a highly flexible vascular system with the capacity to open up new capillaries and distend veins in order to accommodate increased fluid volume," said Irene Gavras.

Through a review of numerous studies, the researchers demonstrated that the mechanism of hypertension resulting from the excessive consumption and retention of salt stimulates the sympathetic nervous system in the brain to increase adrenaline production. The increased adrenalin being circulated throughout the body causes the arteries to constrict, which results in resist
'/>"/>

Contact: Jenny Eriksen Leary
jenny.eriksen@bmc.org
617-638-6841
Boston University Medical Center
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Boston University School of Medicine professor honored by American College of Nutrition
2. Register now! Boston meeting will showcase latest aging discoveries
3. NIH training grant awarded to Boston University School of Medicine and College of Engineering
4. Join GSA in Boston for the nations premier aging conference
5. BU researchers identify extensive methane leaks under streets of Boston
6. Boston Medical Center receives support from CVS Caremark Charitable Trust
7. Boston Medical Center to receive $245,000 grant from Attorney General Martha Coakley
8. Boston Medical Center receives grant from Astrazeneca to end diabetes
9. Aetna Foundation funding Boston University obesity research
10. Boston Medical Centers CARE Unit receives additional NIH funding
11. Boston University School of Medicine researchers receive NIMH brain awards
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/22/2013)... investigators also conclude that the 20 percent reduction ... (LDCT) versus chest X-ray (CXR) screening previously reported ... experienced screening centers in the United States. , ... their patients about the benefits and risks of ... the New England Journal of Medicine ...
(Date:5/22/2013)... cell powered buses, including a team from Simon ... processes and bus membrane durability. , The team ... in the operating cycle of the bus on ... study, led by SFU graduate student Natalia MaCauley, ... Burnaby-based Ballard Power Systems and funded by Automotive ...
(Date:5/22/2013)... can detect molecular variants in chemical mixtures greatly ... important, though time-consuming, processes in analytical chemistry. , ... post-doctoral researcher David Patterson, Professor of Physics John Doyle ... Laser Science (CFEL) in Hamburg, Germany developed a system ... variants apart, and to determine how much variant is ...
Breaking Biology News(10 mins):NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 2NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 3Tests lead to doubling of fuel cell life 2Detecting mirror molecules 2Detecting mirror molecules 3
... Fungi do not have sexes, just so-called mating types. ... PLoS shows that there are great similarities between the parts ... and the parts of DNA that determine mating types in ... organisms in studies of the evolutionary development of sex chromosomes. ...
... Lung Cancer Partnership is pleased to announce that Adam ... is the winner of the organizations 2007 Career Development ... $80,000, provides two years of protected time for newly independent ... With the support of the Lilly Foundation and our very ...
... systems biological analysis of genome-scale data from the ... identified that the master gene controlling the biological ... will appear in the latest issue of the ... hypothesis derived from multi-network analysis of Arabidopsis genomic ...
Cached Biology News:Fungi can tell us about the origin of sex chromosomes 2Systems biology approach identifies nutrient regulation of biological clock in plants 2
(Date:5/22/2013)... Canada (PRWEB) May 22, 2013 ... approaches for deciphering the information they encode. There ... ribosome profiling (deep sequencing of ribosome protected fragments) ... in vivo. , Keynote speakers include Dr. Jonathan ... Francisco and the Howard Hughes Medical Institute, who ...
(Date:5/21/2013)... 2013 First patients dosed with ... bromide designed using Prosonix, particle engineering platform ... of inhaled Respiratory Medicines by Design , has ... will assess its effect on lung function and the ... moderate to severe chronic obstructive pulmonary disease (COPD). The ...
(Date:5/21/2013)... Lindsley F. Kimball Research Institute of the New York Blood ... Explorations winner, an initiative funded by the Bill ... , Head of the Laboratory of Molecular Parasitology will ... Innovative 3-D in vitro culturing system for ... to help eliminate onchocerciasis (river blindness) in Africa ...
(Date:5/21/2013)... Through science fairs, workshops, kits for building optical ... organizations will continue their work to increase awareness about ... daily life with the aid of SPIE Education ... countries, are the first of two groups of recipients ... international society for optics and photonics , in 2013. ...
Breaking Biology Technology:Monitoring Protein Synthesis One Codon at a Time Through Ribosome Profiling, a Webinar Hosted by Xtalks 2Prosonix Initiates Phase 2 Clinical Study with PSX1002 in Patients with Moderate to Severe Chronic Obstructive Pulmonary Disease (COPD) 2Prosonix Initiates Phase 2 Clinical Study with PSX1002 in Patients with Moderate to Severe Chronic Obstructive Pulmonary Disease (COPD) 3Prosonix Initiates Phase 2 Clinical Study with PSX1002 in Patients with Moderate to Severe Chronic Obstructive Pulmonary Disease (COPD) 4New York Blood Center's Research Institute Receives Grand Challenges Explorations Grant For Groundbreaking Research in Global Health and Development 2New York Blood Center's Research Institute Receives Grand Challenges Explorations Grant For Groundbreaking Research in Global Health and Development 3Learning About Light: Education Outreach Projects Funded in 10 Countries Through First Round of SPIE Grants 2Learning About Light: Education Outreach Projects Funded in 10 Countries Through First Round of SPIE Grants 3
... , , , , BOTHELL, Wash., Dec. 23 ... manufacturer, and marketer of biopreservation tools for cells, tissues, and ... its quality systems and GMP production facility in Bothell, Washington ... ISO 13485:2003, an international standard for quality systems supporting the ...
... of Houston, Oak Ridge National Laboratory and Southern California ... demonstration project award announced by U.S. Department of Energy ... be used to manufacture a transformer for electric utilities ... grid. , "The project is for a fault ...
... 22 /PRNewswire/ - Viron Therapeutics Inc., a biotechnology company ... that it has been granted U.S. patents related to ... These patents join a portfolio of more than 80 ... drug discovery platform identifies proteins expressed by non-human viruses ...
Cached Biology Technology:BioLife Solutions Achieves ISO 13485 Quality Management Systems Certification 2BioLife Solutions Achieves ISO 13485 Quality Management Systems Certification 3Waukesha Electric partners with SuperPower and UH to build fault current limiting superconducting transformer for Dept. of Energy 2Waukesha Electric partners with SuperPower and UH to build fault current limiting superconducting transformer for Dept. of Energy 3Viron granted U.S. Patents for Organ Transplant and Arthritis Drug Candidates 2Viron granted U.S. Patents for Organ Transplant and Arthritis Drug Candidates 3
Request Info...
... qualitatively detect EGFR gene ... (FFPE) tissue sections, metaphase ... preparations, using Chromogenic In ... In Situ Hybridization (FISH) ...
Request Info...
Many mammalian cell types and experimental situations create challenges for standard transfection experiments. The ViraPower Lentiviral Expression System overcomes these challenges with efficient vir...
Biology Products: