Hamsters with ’roid rage’ reveal that human teens may stay nasty for more than two years, with possible long-term brain impact
Anabolic steroids not only make teens more aggressive, but may keep them that way into young adulthood. The effect ultimately wears off but there may be other, lasting consequences for the developing brain. These findings, published in February’s Behavioral Neuroscience, also showed that aggression rose and fell in synch with neurotransmit
Hormonal treatment gaining popularity for localized prostate cancer despite little understanding of its effectiveness
Oregon Health & Science University Cancer Institute researchers wanted to know if depriving men of testosterone actually keeps cancer from spreading beyond the prostate. What they found is that men who have localized prostate cancer with certain high-risk features and receive this treatment — known as androgen deprivation therapy — remain at risk of dying from
Men with prostate cancer who experience bone loss from cancer treatment could benefit from a weekly oral therapy commonly given to women with osteoporosis, according to a study presented by the University of Pittsburgh Medical Center (UPMC) at the American Society of Clinical Oncology Prostate Cancer Symposium, Feb. 24 to 26 at the San Francisco Marriott. The study, abstract number 139, will be featured in a press program at the meeting, 7:30 a.m., Sunday, Feb. 26.
“In previous studies,
Study examines data of more than 48,000 men between age 65 and 80 and is the first known study in an older population to show survival benefit with radiation therapy
A new study shows older men with early stage prostate cancer survive longer if they are treated versus not being treated in favor of the “watchful waiting” approach advocated by many physicians for older men with other health problems. In addition, the study revealed a survival benefit for men treated with radiation therapy
“Aware” home technology has the potential to enhance the safety and well-being of aging Americans, according to an article in the Fall 2005 issue of the Public Policy & Aging Report, a quarterly publication of the National Academy on an Aging Society.
Many older adults live alone, deal with chronic medical conditions, and experience age-related changes in movement control and cognitive abilities. These same individuals largely prefer to maintain an independent lifestyle in their own home
The southern house mosquito, found everywhere in the tropics and subtropics, is actually composed of genetically different strains, according to a team of researchers led by a scientist from The Academy of Natural Sciences.
This research helps medical entomologists and doctors understand why certain infectious diseases occur in parts of the world but not in others depending on the presence of the disease-transmitting mosquito strains.
In a paper published in the Febru
How are things going at work? While there has plenty written on a wide variety of factors affecting employee well-being – on everything from management style and organizational structure to the effects of ergonomic furniture and natural lighting – the “elephant in the room” in our workplaces is something that almost everyone complains about but no one has studied: how much time we spend in meetings.
In the average workplace, there are lots of meetings. Reports indicate that the
If you’re watching the Winter Olympics, you know that snow and ice are an integral part of the sports. But did you know that snow and ice need to be different for each sport? NASA scientist Peter Wasilewski’s studies of ice using polarized light create beautiful colored pictures of the snow and ice, and enable people to see if the snow and ice is “right” for each type of sport.
Wasilewski, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Md., uses polarized light t
Rice U. study focuses on merged vowel sounds in different dialects
When Rice University alumna Brianna Conrey was in third grade in Stillwater, Okla., she misspelled “pen” on a test because her teacher unknowingly pronounced it “pin.” At the time, Conrey never would have guessed that she would write a senior thesis in college about the brain activity that takes place in people who don’t distinguish between similar-sounding words like “pin” and “pen.” Nor would she have guessed
UCSF and Cleveland Clinic scientists have discovered a new virus in human prostate tumors. The type of virus, closely related to viruses typically found in mice, has never been detected in humans. The virus’s link to human disease is still unclear, and more study is needed to determine the relationship between the virus and cancer, if any, the scientists say.
The discovery was made with the same DNA-hunting “virus chip” used to confirm the identity of the SARS virus three y
Analysis of protein interactions dispels old notions of what’s important about them
Discoveries made during the first large-scale analysis of interactions between proteins in our cells hold promise for identifying new genes involved in genetic diseases, according to researchers at Johns Hopkins and the Institute of Bioinformatics (IOB) in Bangalore.
The findings, reported in the March issue of Nature Genetics, were made using a database of more than 25,000 prot
Though some species of fish around the world’s are likely to be contaminated with mercury, PCBs and other toxins, the benefits of eating seafood continue to outweigh the risks, a panel of scientists recently said at the annual meeting of the American Association for the Advancement of Science.
“The best science coming out over the last two years has overwhelmingly been in favor of the benefits of seafood consumption,” said Michael T. Morrissey, director of Oregon State University
Recent research on the genetics of smoking has focused on genes that are thought to be related to nicotine metabolism, personality traits, and regulation of emotions. According to a genetic study just published in “Nicotine and Tobacco Research,” genes responsible for taste also may yield important information about who smokes and why they smoke.
Researchers from the University of Wisconsin-Madison and University of Utah wanted to determine if a “bitterness” gene-phenylthiocarbamide (PT
Scientists have successfully conducted the first clinical trial giving xenon gas to patients undergoing coronary artery bypass grafting in order to safeguard against postoperative brain damage that can occur following this procedure.
Research published in Anesthesiology shows how the team safely gave xenon to 12 patients undergoing coronary artery bypass grafting while on cardiopulmonary artery bypass, a step which could eventually lead to new treatments for people suffering from i
These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft, show the Ausonia Mensa massif on Mars.
The HRSC obtained these images during orbit 506 with a ground resolution of approximately 37.6 metres per pixel. The scenes show the region of Hesperia Planum, containing the massif, at approximately 30.3° South and 97.8° East. North is to the right in these images.
Ausonia Mensa is a large remnant mountain with several impact c
At the latest meeting of the European Space Agency’s Earth Observation Programme Board, which took place at ESA’s Headquarters in Paris on 23 and 24 February, ESA received the green light from its Member States to build and launch a CryoSat recovery mission, CryoSat-2.
The launch of the CryoSat spacecraft was unfortunately aborted on 8 October 2005 due to a malfunction of its Rockot launcher, which resulted in the total loss of the spacecraft.
“This decision is very important,
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