August 30, 2012 |
In what is almost certainly a medical first, a physician from my hometown of St. Joseph, Mo., has identified a new viral disease thought to be transmitted by ticks. The virus is related to hantaviruses, which have recently caused at least two deaths at Yosemite National Park, but so far only two confirmed cases have been observed. Because the two farmers who contracted the virus live 60 miles apart, however, researchers from the Centers for Disease Control and Prevention suspect there are probably many more unrecognized cases.
September 6, 2012 |
As a parent, I never wished popularity on my children; it takes a lot of work to stay on top. And researchers have come up with a reason I hadn't thought of: Popular kids are more likely to smoke cigarettes, they say. The conclusion, published Wednesday in the Journal of Adolescent Health, is based on surveys among teenagers in ninth and 10 th grades at seven predominantly Latino high schools in the Los Angeles area. It confirms previous studies about high school students in the U.S. and Mexico.
July 26, 2013 |
When it comes to picking peacocks, beauty is in the eye of the peahen. But what, precisely, does a peahen look for in a mate's ornately feathered displays? Gentlemen of a plumed persuasion, take note: The ladies spend a lot of time checking out the bottom half. It's long been known that peacocks, the males of the species known for their brilliant jewel-toned plumage, show off their sapphire-and-emerald assets to attract a female. The peahens inspect the peacocks before deciding whether or not to mate with them.
April 20, 2012 |
DNA and RNA molecules are the basis for all life on Earth, but they don't necessarily have to be the basis for all life everywhere, scientists have shown. Researchers at the Medical Research Council in Cambridge, England, demonstrated that six synthetic molecules that are similar to - but not exactly like - DNA and RNA have the potential to exhibit "hallmarks of life" such as storing genetic information, passing it along and undergoing evolution. The man-made molecules are called "XNAs.
April 7, 2014 |
Are the millions of dollars spent to try to reverse childhood obesity a good investment? One answer might be found in the cost if the condition goes unchecked: about $19,000 per obese child in lifetime medical costs, researchers reported Monday. That's $14 billion just for the obese 10-year-olds in the United States, according to researchers at the Duke Global Health Institute and the Duke-NUS Graduate Medical School in Singapore. They reported their results in the journal Pediatrics.
July 17, 2010 |
Malaria kills nearly 1 million people a year, but it has a weakness — to infect humans, it needs mosquitoes. In a potential step toward eradicating the disease, researchers report that they have developed a genetically engineered breed of mosquito that cannot be infected by the malaria-causing parasite. Genetically-modified mosquitoes are far from ready for use in the field, but the researchers achieved an unprecedented 100% blockage of the Plasmodium parasite, highlighting the promise of this approach, according to their study.
August 30, 2011 |
A study looking at differences in suicide methods between men and women found that while women are less likely to shoot themselves in the head than men, there may be specific reasons why they choose to die that way. Researchers from the University of Akron and Ohio State University examined 621 suicides that occurred from 1997 to 2006 in Summit County, Ohio. In addition to looking at methods of suicide and what led up to them they also divided the data by gender to see if men's and women's means to suicide were different.
October 30, 2013 |
It's not just what you eat but where and how you eat that seems to affect obesity, say researchers who looked at the effects of family dinner rituals. Families who frequently ate dinner in the kitchen or dining room had significantly lower body mass indices for adults and children, compared with families who ate elsewhere, including in front of the television, the researchers wrote. “Family meals and their rituals might be an underappreciated battleground to fight obesity,” the researchers wrote in the journal Obesity, published Wednesday.
April 22, 2014 |
African American high school students and boys in low- to middle-income families reported short, fragmented sleep, and that could play a role in their health risks, researchers reported Monday. Anyone who's ever lived with a teenager knows they often don't get the eight to nine hours of sleep the Centers for Disease Control and Prevention recommends. Researchers writing in the journal of the American Academy of Pediatrics looked at one group of young people - those in a lower socioeconomic community.
May 12, 2012 |
For the first time, an international team of researchers has used satellites to track the movements of manta rays, providing valuable new information about the massive rays, which are considered "vulnerable" to extinction by the International Union for Conservation of Nature. The preliminary findings for the Atlantic mantas showed that they traveled as far as 680 miles over a one- to two-month period searching for food, sticking close to the coastline. They also spent considerable time in shipping lanes, which rendered them vulnerable to being hit by freighters.