Health News
Date: Jul-30-2012
New understanding of how the brain processes information from inner ear offers hope for sufferers of vertigo If you have ever looked over the edge of a cliff and felt dizzy, you understand the challenges faced by people who suffer from symptoms of vestibular dysfunction such as vertigo and dizziness. There are over 70 million of them in North America. For people with vestibular loss, performing basic daily living activities that we take for granted (e.g...
Date: Jul-30-2012
A new genre of medical tests - which determine whether a medicine is right for a patient's genes - are paving the way for increased use of personalized medicine, according to the cover story in the current edition of Chemical & Engineering News. C&EN is the weekly newsmagazine of the American Chemical Society, the world's largest scientific society. Celia Henry Arnaud, C&EN senior editor, points out that the U.S...
Date: Jul-30-2012
Almost 20 years after scientists first identified cigarette smoking as a risk factor for osteoporosis and bone fractures, a new study is shedding light on exactly how cigarette smoke weakens bones. The report, in ACS' Journal of Proteome Research, concludes that cigarette smoke makes people produce excessive amounts of two proteins that trigger a natural body process that breaks down bone...
Date: Jul-30-2012
Breast cancer patients whose tumors lacked the retinoblastoma tumor suppressor gene (RB) had an improved pathological response to neoadjuvant chemotherapy, researchers at Thomas Jefferson University Hospital and the Kimmel Cancer Center at Jefferson report in a retrospective study published in a recent online issue of Clinical Cancer Research. Many breast cancer patients undergo neoadjuvant therapy to reduce the size or extent of the cancer before surgical intervention. Complete response of the tumor to such treatment signifies an improved overall prognosis...
Date: Jul-30-2012
A brief therapeutic intervention called motivational interviewing, administered over the telephone, was significantly more effective than a simple "check-in" call in getting Iraq and Afghanistan war veterans with mental health diagnoses to begin treatment for their conditions, in a study led by a physician at the San Francisco VA Medical Center and the University of California, San Francisco...
Date: Jul-30-2012
A research team at the National Institutes of Health has found that bacteria that normally live in the skin may help protect the body from infection. As the largest organ of the body, the skin represents a major site of interaction with microbes in the environment. Although immune cells in the skin protect against harmful organisms, until now, it has not been known if the millions of naturally occurring commensal bacteria in the skin - collectively known as the skin microbiota - also have a beneficial role...
Date: Jul-30-2012
Fighting "superbugs" - strains of pathogenic bacteria that are impervious to the antibiotics that subdued their predecessor generations - has required physicians to seek new and more powerful drugs for their arsenals. Unfortunately, in time, these treatments also can fall prey to the same microbial ability to become drug resistant. Now, a research team at the University of North Carolina at Chapel Hill (UNC) may have found a way to break the cycle that doesn't demand the deployment of a next-generation medical therapy: preventing "superbugs" from genetically propagating drug resistance...
Date: Jul-30-2012
Pancreatic beta cells produce insulin, responsible for controlling blood sugar levels and thus essential for our survival. Among the numerous factors that affect the workings of these cells, a protein called Cx36 was identified a few months ago by a research team at the UNIGE. The scientists there had demonstrated that in transgenic mice, suitably modified so as not to produce any Cx36, synchronization of the beta cells ceased and insulin production went out of control. This de-synchronization of insulin secretion is the first measurable sign in people suspected of developing type 2 diabetes...
Date: Jul-29-2012
Researchers from the University of Kentucky have designed and discovered a series of highly efficient enzymes that effectively metabolize cocaine. These high-activity cocaine-metabolizing enzymes could potentially prevent cocaine from producing physiological effects, and could aid in the treatment of drug dependency. The results of this study by Chang-Guo Zhan et al are published in the journal PLOS Computational Biology...
Date: Jul-29-2012
Study results released by the HIV Prevention Trials Network (HPTN) show additional benefits of early antiretroviral therapy (ART) in HIV clinical outcomes. Expanded analysis of HPTN 052 study data, presented at the XIX International AIDS Conference in Washington, D.C., demonstrated that early versus delayed ART showed a trend toward delaying the time to both AIDS and non-AIDS primary events and significantly delayed the time to AIDS events, death and tuberculosis. The overall incidence of clinical events was significantly lower in participants treated in the early therapy arm...