Navigation Links
'Healthy' sterols may pose health risk
Date:7/14/2008

Plant sterols have been touted as an effective way to lower cholesterol and reduce the risk of heart disease. However, a research study in the July JLR has uncovered that these compounds do have their own risks, as they can accumulate in heart valves and lead to stenosis.

Aortic valve stenosis (AS) results from cholesterol accumulation in the valve between the left ventricle and aorta; this impedes the flow of blood and puts extra pressure on the heart. About 2% of individuals over 65 (and over 5% of those over 85) have AS, and as the population ages, it is becoming an increasing problem.

Plant sterols can block the absorption of dietary cholesterol into the body, and as such high vegetable diets and/or plant sterol supplements are often used to alleviate high cholesterol. However, although plant sterols themselves are poorly absorbed, they can enter the body, so Satu Helske and colleagues examined whether plant sterols can also accumulate in aortic valves.

They collected blood samples from 82 patients with severe AS and aortic valves from 21 individuals undergoing valve surgery, along with respective controls. They observed that non-cholesterol sterols, including plant sterols, can accumulate in aortic valves, and at levels that directly related to their blood concentration.

These findings suggest that beneficial plant sterols may end up becoming a risk factor for AS, although the researchers will need to conduct more studies, such as whether dietary sterols and sterol supplements produce different effects.


'/>"/>

Contact: Nick Zagorski
nzagorski@asbmb.org
301-634-7366
American Society for Biochemistry and Molecular Biology
Source:Eurekalert

Page: 1

Related biology news :

1. Healthy or diseased?
2. Caloric intake negatively influences healthy adults sleep patterns
3. Fat intake negatively influences the sleep pattern in healthy adults
4. Study finds healthy intestinal bacteria within chicken eggs
5. Healthy parents provide clues to survival of young haddock on Georges Bank
6. Crop management strategies key to a healthy Gulf, planet
7. Macadamia nuts can be included in heart healthy diet
8. U of M research finds teens who have TV in their bedroom are less likely to engage in healthy habits
9. Healthy rivers needed to remove nitrogen
10. Iowa Staters talk biofuels, healthy oils and pharma crops at AAAS meeting
11. Want healthy gums? Hit the dairy aisle
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... ANGELES , March 30, 2017  On April ... Hack the Genome hackathon at Microsoft,s ... exciting two-day competition will focus on developing health and ... Hack the Genome is the ... been tremendous. The world,s largest companies in the genomics, ...
(Date:3/29/2017)... March 29, 2017  higi, the health IT company ... North America , today announced a Series ... acquisition of EveryMove. The new investment and acquisition accelerates ... tools to transform population health activities through the collection ... higi collects and secures data today on ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. Mohamed Anwar ... the prestigious international IAIR Award for the most innovative high security ePassport ... ... Maldives Immigration Controller General, Mr. ... on the right) have received the IAIR award for the "Most innovative ...
Breaking Biology News(10 mins):
(Date:6/15/2017)... ... June 15, 2017 , ... ... (EKG) follows an artist’s journey through creative experimentation and interdisciplinary collaboration. Feature Creep, ... through July 22nd. An opening reception will be held at EKG, located at ...
(Date:6/14/2017)... ... June 14, 2017 , ... The Thailand Board of Investment ... they’re co-hosting a delegation from Thailand at BIO 2017 in San Diego, CA ... in the world, regroups more than 1,100 biotech companies, academic institutions, state biotechnology ...
(Date:6/14/2017)... , June 14, 2017   Micralyne Inc., ... and a primary supplier of sensors, is pleased ... Placentia, California to develop and ... (TSV).  The joint development of this technology leverages ... a truly flexible and cost effective Metal TSV ...
(Date:6/13/2017)... MA (PRWEB) , ... June ... ... a leading international supplier of advanced flexible materials, has chosen The Copley ... a significant growth trajectory, Boyd Technologies is aligning its manufacturing operations and ...
Breaking Biology Technology: