An international study led by Johns Hopkins suggests that the rate of HIV-associated dementia is so high in sub-Saharan Africa that HIV dementia along with Alzheimer's disease and dementia from strokes may be among the most common forms of dementia in the world.In the first study of HIV dementia on the African continent using rigorous neurological and neuropsychological tests, 31 percent of a small but presumably representative group of HIV-positiv...Tuesday, 30-Jan-2007 / [ Details... ]
According to a new study television commercials for prescription drugs are heavily loaded on the emotional side but offer scant information on the disease itself and do little to promote the benefits of a healthy lifestyle.The study's lead author, Dominick Frosch, an assistant professor of medicine at the University of California, Los Angeles, says TV ads on the whole use emotion instead of information to promote drugs.In 2005 alone drug co...Tuesday, 30-Jan-2007 / [ Details... ]
A small but significant study in the U.S. has found that a treatment which was designed to clear blocked carotid arteries and prevent stroke has also improved brain function. The researchers report that almost half of patients who were treated with a carotid stent to prevent a stroke showed statistically significant improvement in brain function, such as memory, judgment and reasoning.Doctors insert the tiny wire-mesh tubes, the carotid stents, via a small puncture in the groin and thread...Monday, 29-Jan-2007 / [ Details... ]
A first-of-its-kind study into time-dependent treatments of sudden sensorineural hearing loss published in the February 2007 issue of Otolaryngology- Head and Neck Surgery has determined that a combination of time and oral corticosteroid therapy can play a key role in helping patients regain full hearing, often within a month of the initial loss of hearing. Sudden sensorineural hearing loss, which affects approximately 4,000 Americans each year, is hearing loss of 30 dB or more that develops ove...Monday, 29-Jan-2007 / [ Details... ]
The American Council on Exercise (ACE) recently released results of its exclusive study that examined on-the-job physical activity of 10 common occupations. Based on Shape Up America's physical activity recommendations in their 10,000 steps program, ACE commissioned researchers at the University of Wisconsin, La Crosse to measure the amount of workday physical activity one can expect from a variety of common occupations. Led by John Po...Monday, 29-Jan-2007 / [ Details... ]
Smokers with a damaged insula - a region in the brain linked to emotion and feelings - quit smoking easily and immediately, according to a study in the Jan. 26 issue of the journal Science.The study provides direct evidence of smoking's grip on the brain. It also raises the possibility that other addictive behaviors may have an equally strong hold on neural circuits for pleasure.The senior authors of the study are Antoine Bechara and Hanna Damasio, both faculty in the year-old Brai...Monday, 29-Jan-2007 / [ Details... ]
A team led by biochemists at the University of California, San Diego has found what could be a long-elusive mechanism through which inflammation can promote cancer. The findings may provide a new approach for developing cancer therapies. The study, published in the January 26 issue of the journal Cell, shows that what scientists thought were two distinct processes in cells--the cells' normal developme...Sunday, 28-Jan-2007 / [ Details... ]
A pattern of micro molecules can distinguish pancreatic cancer from normal and benign pancreatic tissue, new research suggests. The study examined human pancreatic tumor tissue and compared it to nearby normal tissue and control tissue for levels of microRNA (miRNA). It identified about 100 different miRNAs that are present usually at very high levels in the tumor tissue compared with their levels in normal pancreatic tissue. The findings suggest that miRNAs form a signature, or expressio...Sunday, 28-Jan-2007 / [ Details... ]
One of the few studies examining methods to help homeless youth found that a comprehensive intervention program can indeed dramatically improve their life situation. The six-month study of homeless youth in Albuquerque found that teens who completed the program significantly reduced their substance abuse and depression and increased their social stability, including the number of days living off the streets, compared to those who received standard treatment. "Homeless youth are often seen...Sunday, 28-Jan-2007 / [ Details... ]
It's no secret why we shed tears. But exactly what our tears are made of has remained a mystery to scientists.A new study sheds some light on the complex design of tears. What we think of as tears, scientists call tear film, which is made up of three distinct, microscopic layers. The middle, watery layer - what we normally think of as tears when we cry - is sandwiched between a layer of mucus and an outer layer of fatty, oily substances collectively called meibum.It's in this outer layer ...Sunday, 28-Jan-2007 / [ Details... ]
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