Navigation Links
Walnuts, walnut oil, improve reaction to stress
Date:10/3/2010

A diet rich in walnuts and walnut oil may prepare the body to deal better with stress, according to a team of Penn State researchers who looked at how these foods, which contain polyunsaturated fats, influence blood pressure at rest and under stress.

Previous studies have shown that omega-3 fatty acids -- like the alpha linolenic acid found in walnuts and flax seeds -- can reduce low density lipoproteins (LDL) -- bad cholesterol. These foods may also reduce c-reactive protein and other markers of inflammation.

"People who show an exaggerated biological response to stress are at higher risk of heart disease," said Sheila G. West, associate professor of biobehavioral health. "We wanted to find out if omega 3-fatty acids from plant sources would blunt cardiovascular responses to stress."

The researchers studied 22 healthy adults with elevated LDL cholesterol. All meals and snacks were provided during three diet periods of six weeks each.

The researchers found that including walnuts and walnut oil in the diet lowered both resting blood pressure and blood pressure responses to stress in the laboratory. Participants gave a speech or immersed their foot in cold water as a stressor. Adding flax seed oil to the walnut diet did not further lower blood pressure. They report their findings in the current issue of the Journal of the American College of Nutrition.

"This is the first study to show that walnuts and walnut oil reduce blood pressure during stress," said West. "This is important because we can't avoid all of the stressors in our daily lives. This study shows that a dietary change could help our bodies better respond to stress."

A subset of the participants also underwent a vascular ultrasound in order to measure artery dilation. Results showed that adding flax oil to the walnut diet significantly improved this test of vascular health. The flax plus walnuts diet also lowered c-reactive protein, indicating an anti-inflammatory effect.
'/>"/>

Contact: A'ndrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Walnuts slow prostate tumors in mice
2. FSU joins coalition working to improve nations power grid
3. For insulin sensitive overweight patients, 1 session of exercise improves metabolic health
4. NIH awards Clemson bioengineer $1.5 million to improve durability of tissue heart valves
5. Researchers study how pistachios may improve heart health
6. Scientists identify gene that may contribute to improved rice yield
7. Research about plant viruses could lead to new ways to improve crop yields
8. RNA molecules, delivery system improve vaccine responses, effectiveness
9. British scientists go cloud-hopping in the Pacific to improve climate predictions
10. How eating fruit and vegetables can improve cancer patients response to chemotherapy
11. USAID grant awarded to improve food security in Africa
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Walnuts, walnut oil, improve reaction to stress
(Date:11/10/2014)... detergent pods began appearing on U.S. store shelves in ... numbers ever since. The small packets can be tossed ... out a liquid or powder. The convenience, though, has ... study from researchers at Nationwide Children,s Hospital found that ... reports of 17,230 children younger than 6 years of ...
(Date:11/7/2014)... -- In conjunction with the Glendale and ... of the Verdugos has announced the " GLENDALE ... initiative to keep the Verdugo Regional Crime Lab operational after ... of existence, the Lab has processed more than 400 DNA ... "Because our number one priority is the wellbeing ...
(Date:11/6/2014)... Fla. -- A groundbreaking paper from a team of ... understanding of how plants could adapt to and survive ... research, published in the latest issue of the journal ... chromatin (the complex of DNA and proteins) is organized ... so that some genes are turned on and others ...
Breaking Biology News(10 mins):Study finds laundry detergent pods, serious poisoning risk for children 2Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2Maize analysis yields whole new world of genetic science 2
... Kosterhavet National Park was created to provide a ... researchers at the University of Gothenburg have analysed species ... national park to determine which marine areas require special ... meter manually in the national park. That,s why I,ve ...
... comes to apples, consumers like a crisp bite. Apple ... important "sensory attributes" in apples. Because new apple varieties ... to consumers, breeders are constantly searching for methods to ... test the "old-fashioned" wayusing panels of experts who taste-test ...
... POPLARVILLE, MSAzalea web blight, caused by a species ... each year on some containerized azalea cultivars during ... United States. Azalea shoots can harbor the pathogen, ... Research has indicated that simply submerging terminal ...
Cached Biology News:Life on Kosterhavet's seabed analyzed 2Computerized tool takes a bite out of traditional apple testing 2Thermotherapy rids azaleas of deadly fungal disease 2
(Date:11/27/2014)... 2014 The Europe Thermal Protective ... to provide crucial revenue forecasts. It estimates the ... at a CAGR of 7.5%, from 2013 to ... Europe Thermal Protective Clothing market report for a ... supported by various tables and figures. , ...
(Date:11/27/2014)... -- Calcivis, a medical devices company ... today announces that it has completed a first ... System. The Calcivis Caries Activity Imaging ... combination designed to transform the assessment and management ... unique, proprietary bioluminescence approach combined with a specialised ...
(Date:11/26/2014)... Texas (PRWEB) November 26, 2014 ... Industryā€¯ is a professional and in-depth research report ... Bifluoride information, like its definition, classification, application, and ... This report covers the international market analysis, including ... as the US, Europe, Asia, China, Japan etc. ...
(Date:11/26/2014)... PHILADELPHIA , Nov. 26, 2014 ... environments. Human exploration of space requires astronauts to maintain ... safety and success, and prevent potential errors and accidents. ... little is known about how cognition is affected by ... affected. Now, Penn Medicine researchers are poised ...
Breaking Biology Technology:The Europe Thermal Protective Clothing market is estimated to grow up to $577.9 million by 2018 - Report by MicroMarket Monitor 2The Europe Thermal Protective Clothing market is estimated to grow up to $577.9 million by 2018 - Report by MicroMarket Monitor 3Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 2Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 3Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 2Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 3Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 2Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 3Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 4
... - A Madison-based developer of predictive traffic information ... help of a $1 million line of credit from ... Financial Group of Santa Clara, Calif. , , TrafficCast ... of its cellular probe technology in Shanghai, China, and development ...
... Pfizer spent about $800 million to develop ... until people began to die in clinical trials. Hours ... called a halt to further trials, a decision that ... in jeopardy. , ,The drama surrounding Pfizer's high-stakes choice ...
... manufacturers polled in a recent survey say that ... pressures outweigh anxiety about offshore competition. , ,The ... consulting organization for small and mid-sized manufacturers, conducted ... themselves on performance and external market issues. , ...
Cached Biology Technology:Failure of heart drug offers lessons for drug industry 2Failure of heart drug offers lessons for drug industry 3
... Dish uses include large-scale colony-counting and plaque-lifting, ... Flexys TM automated colony picking and ... new product number, created to easily match ... yet, please order under the old Sigma-Aldrich ...
Mouse Anti-Human Killer cell immunoglobulin-like receptor, two domains, long cytoplasmic tail, 4 (KIR2DL4 Monoclonal Antibody Family: New...
BD BioCoat Laminin 150 mm Culture Dishes...
...
Biology Products: