Component in olive oil kills cancer cells
February 16, 2015 08:52 AM - Rutgers University
A Rutgers nutritional scientist and two cancer biologists at New York City’s Hunter College have found that an ingredient in extra-virgin olive oil kills a variety of human cancer cells without harming healthy cells.
The ingredient is oleocanthal, a compound that ruptures a part of the cancerous cell, releasing enzymes that cause cell death.
Paul Breslin, professor of nutritional sciences in the School of Environmental and Biological Sciences, and David Foster and Onica LeGendre of Hunter College, report that oleocanthal kills cancerous cells in the laboratory by rupturing vesicles that store the cell’s waste.
Beavers provide insight on how to improve our enamel
February 13, 2015 09:50 AM - Northwestern University
Beavers don’t brush their teeth, and they don’t drink fluoridated water, but a new Northwestern University study reports beavers do have protection against tooth decay built into the chemical structure of their teeth: iron. This pigmented enamel, the researchers found, is both harder and more resistant to acid than regular enamel, including that treated with fluoride. This discovery is among others that could lead to a better understanding of human tooth decay, earlier detection of the disease and improving on current fluoride treatments.
When you stop at a red light you are exposed to higher levels of air pollution
February 13, 2015 08:36 AM - University of Surrey via EurekAlert.
UK commuters spend an average of about 1.5 hours a day at the wheel. Road vehicles in particular are known to emit polluting nanoparticles which contribute to respiratory and heart diseases. Now, researchers at the University of Surrey have found that where drivers spend just 2% of their journey time passing through traffic intersections managed by lights, this short duration contributes to about 25% of total exposure to these harmful particles.
The team monitored drivers' exposure to air pollutants at various points of a journey. Signalised traffic intersections were found to be high pollution hot-spots due to the frequent changes in driving conditions.
Children in cities have increased risk of neurological damage due to air pollution
February 12, 2015 08:47 AM - University of Montana
Pollution in many cities threatens the brain development in children. Findings by University of Montana Professor Dr. Lilian Calderón-Garcidueñas, MA, MD, Ph.D., and her team of researchers reveal that children living in megacities are at increased risk for brain inflammation and neurodegenerative changes, including Alzheimer’s or Parkinson’s disease. Calderón-Garcidueñas’ findings are detailed in a paper titled “Air pollution and children: Neural and tight junction antibodies and combustion metals, the role of barrier breakdown and brain immunity in neurodegeneration.”
How much sleep do you really need?
February 12, 2015 05:26 AM - LOYOLA UNIVERSITY HEALTH SYSTEM via EurekAlert.
Loyola University Chicago Stritch School of Medicine researcher Lydia DonCarlos, PhD, is a member of an expert panel that's making new recommendations on how much sleep people need.
The panel, convened by the National Sleep Foundation, is making its recommendations based on age, ranging from newborns (who need 14 to 17 hours of sleep per day) to adults aged 65 and up (7 to 8 hours per day).
Autoimmune disease risk found related to mercury exposure
February 10, 2015 07:03 AM -
One of the greatest risk factors for autoimmunity among women of childbearing age may be associated with exposure to mercury such as through seafood, a new University of Michigan study says.
The findings, which appear in Environmental Health Perspectives, found that mercury - even at low levels generally considered safe - was associated with autoimmunity. Autoimmune disorders, which cause the body's immune system to attack healthy cells by mistake, affects nearly 50 million Americans and predominately women.
Will eating Chili peppers make you thin?
February 9, 2015 08:25 AM - University of Wyoming via BIOPHYSICAL SOCIETY at EurekAlert.
Don't go chomping on a handful of chili peppers just yet, but there may be help for hopeful dieters in those fiery little Native American fruits.
A large percentage of the world's population -- fully one third, by the World Health Organization's estimates -- is currently overweight or obese. This staggering statistics has made finding ways to address obesity a top priority for many scientists around the globe, and now a group of researchers at the University of Wyoming has found promise in the potential of capsaicin -- the chief ingredient in chili peppers -- as a diet-based supplement.
Children benefit from getting outdoors
February 7, 2015 08:42 AM - Click Green staff
The health benefits of active outdoor pursuits over sedentary indoor pastimes are well known and increasingly highlighted in the battle against childhood obesity and its long-term consequences.
People of all ages extol the virtues of getting some fresh air, particularly for a generation of children in which, according to a Mothercare survey last year, more than a quarter play outside for less than half an hour a week.
US considering standards for organic fish farming
February 5, 2015 06:32 AM - KRISTOFOR HUSTED, NPR
When it comes to organic certification, food producers must follow strict guidelines.
For an organic steak, for instance, the cow it came from has to be raised on organic feed, and the feed mix can't be produced with pesticides, chemical fertilizers or genetic engineering.
Now, the U.S. Department of Agriculture is considering a set of rules for organic farmed fish.
Study Finds Leaks in Boston's Natural Gas Pipelines
February 2, 2015 04:37 PM - S.E. Smith, Care2
A team of researchers led by Kathryn McKain of Harvard University has recently discovered that approximately three percent of the natural gas delivered to Boston leaks directly into the atmosphere, taking with it a heavy load of methane, a known greenhouse gas. Their study doesn’t just have significant environmental implications: It’s estimated that the city is losing around $90 million to leaks every year. Correcting leaks is a relatively straightforward task, though it would require some investment in natural gas infrastructure and consumer education. However, these costs would be mitigated by the substantial savings offered if Boston was able to cut down on its methane problem.