ScienceDaily Health Headlines
for Tuesday, November 22, 2011
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Improved method of electrical stimulation could help treat damaged nerves (November 22, 2011) -- A plastic surgery research team and an engineering team have described a new method of nerve stimulation that reduces electrical threshold by 40 percent, compared with traditional functional electrical stimulation therapy. ... > full story
Key gene function against cell death discovered (November 22, 2011) -- Scientists have discovered that two genes (TSC/Tuberin and PRAS40) are extremely important regulators in the development of stem cells: if these genes are switched off, the stem cells do not develop but instead die a programmed cell death. ... > full story
Research examines college students' knowledge about eating disorders (November 22, 2011) -- They're the prime demographic for developing eating disorders, yet new research suggests that it could be difficult for college students to notice the warning signs of disordered eating. ... > full story
People with early Alzheimer's disease may be more likely to have lower BMI (November 22, 2011) -- Studies have shown that people who are overweight in middle age are more likely to develop Alzheimer's disease decades later than people at normal weight, yet researchers have also found that people in the earliest stages of Alzheimer's disease are more likely to have a lower body mass index (BMI). A current study examines this relationship between Alzheimer's disease and BMI. ... > full story
Erectile dysfunction study shows high prevalence of peripheral neuropathy (November 22, 2011) -- Researchers have uncovered clear links between erectile dysfunction (ED) and peripheral neuropathy. This study of 90 patients shows that men with more severe symptoms of peripheral neuropathy, which can be caused by disease, trauma or illness, had greater self-reported ED and required more aggressive treatment. The findings underline the importance of clinicians carrying out neurophysiological tests on patients with ED, particularly in the pelvic area. ... > full story
Public asked to help in fight against malaria (November 22, 2011) -- IBM's Watson computing system broke new ground earlier this year when it defeated two celebrated human competitors on the Jeopardy! game show. Now, The Scripps Research Institute is hoping to do something equally novel but more critical to human health with part of the prize money from that tournament: Find a cure for drug-resistant malaria. And it's asking for the public's help. ... > full story
Measuring outcome in the treatment of depression via the Web (November 22, 2011) -- A newly published article reports that Web-based assessments for outcome measurements of patients in treatment for depression are valid and reliable. The findings indicate that the Internet version of the depression scale was equivalent to the paper version, and that patients preferred the Internet version. ... > full story
Future prostate cancer treatments might be guided by math (November 21, 2011) -- Scientists have designed a first draft of a mathematical model that someday could guide treatment decisions for advanced prostate cancer, in part by helping doctors predict how individual patients will respond to therapy based on the biology of their tumors. These decisions would apply to treatment of cancer that has already spread beyond the prostate gland or that has recurred after initial treatments, such as surgery or radiation. ... > full story
Hemoglobin A1c testing method fails to identify kids with diabetes, study shows (November 21, 2011) -- In 2009, the American Diabetes Association (ADA) recommended that Hemoglobin A1c be exclusively used for the diagnosis of diabetes in children. The simple test measures longer-term blood sugar levels -- without requiring patients to fast overnight. However, a new study has shown that these tests are not very accurate in children. ... > full story
Ignorance is bliss when it comes to challenging social issues (November 21, 2011) -- The less people know about important complex issues such as the economy, energy consumption and the environment, the more they want to avoid becoming well-informed, according to new research. ... > full story
Key molecules for hearing and balance discovered: Can hearing be restored? (November 21, 2011) -- Researchers have identified two proteins that may be the key components of the long-sought after mechanotransduction channel in the inner ear -- the place where the mechanical stimulation of sound waves is transformed into electrical signals that the brain recognizes as sound. A gene-therapy trial based on this research will attempt to restore hearing in deaf mice. ... > full story
Cancer drug cisplatin found to bind like glue in cellular RNA (November 21, 2011) -- An anti-cancer drug used extensively in chemotherapy binds pervasively to RNA -- up to 20-fold more than it does to DNA, a surprise finding that suggests new targeting approaches might be useful, according to researchers. ... > full story
Too much undeserved self-praise can lead to depression (November 21, 2011) -- People who try to boost their self-esteem by telling themselves they've done a great job when they haven't could end up feeling dejected instead, according to new research. ... > full story
New way to boost potency of natural pain relief chemical in body (November 21, 2011) -- Researchers have discovered a new means of enhancing the effects of anandamide -- a natural, marijuana-like chemical in the body that provides pain relief. ... > full story
Cancer vaccine impact limited unless drug industry focuses on difficult-to-treat tumors, experts say (November 21, 2011) -- Drug companies currently developing therapeutic cancer vaccines may be determining the cancers they target based on the number of annual cases, not the number of deaths they cause. This approach may limit the patient benefits of such drugs, according to a new University of Michigan report. ... > full story
Nerve cells key to making sense of our senses (November 21, 2011) -- The human brain is bombarded with a cacophony of information from the eyes, ears, nose, mouth and skin. Now scientists have unraveled how the brain manages to process those complex, rapidly changing, and often conflicting sensory signals to make sense of our world. ... > full story
Retinal microvascular changes associated with disability in daily activities among older adults (November 21, 2011) -- Retinal microvascular changes appear to be associated with development of disability in performing activities of daily living among older adults, and retinal signs may be useful in predicting outcomes among this population, according to new report. ... > full story
Older women still suffer from hot flashes and night sweats years after menopause, study finds (November 21, 2011) -- Women still have hot flashes and night sweats years after menopause, a new study finds. Hot flashes and night sweats (HF/NS) are the main physical signs of the menopause, however their prevalence, frequency, severity and duration vary considerably. ... > full story
New test for coronary artery disease linked to higher rates of cardiac procedures and greater costs (November 21, 2011) -- A new, noninvasive diagnostic test for coronary artery disease is associated with a higher rate of subsequent invasive cardiac procedures and higher health-care spending, according to an observational study of Medicare recipients. ... > full story
New class of small molecules discovered through innovative chemistry (November 21, 2011) -- Inspired by natural products, scientists have now created a new class of small molecules with the potential to serve as a rich foundation for drug discovery. ... > full story
Poverty-related stress affects readiness for school (November 21, 2011) -- Researchers studying 1,300 mostly low-income children looked at demographic characteristics, household environment, parenting quality, and cortisol levels when the children were 7-24 months old and executive functions when the children were 3. They found that children in lower-income homes received less positive parenting and had higher levels of cortisol in their first two years than children in slightly better-off homes, and that higher levels of cortisol were associated with lower levels of executive function abilities. ... > full story
Patients with severe sepsis and new-onset atrial fibrillation at increased risk of in-hospital stroke, death (November 21, 2011) -- Patients hospitalized with severe sepsis who experience new-onset atrial fibrillation have an associated increased risk of in-hospital stroke and death, according to a new study. ... > full story
Friendship makes a difference in stress regulation (November 21, 2011) -- A nationwide Dutch study of 100 fourth graders sought to determine whether victimization and exclusion by peers were related to increases in cortisol (a stress hormone), and whether friendships moderated this association. The study found that children who were excluded by their classmates had elevated levels of cortisol at school, indicating that exclusion is stressful. Victimization by classmates wasn't associated with increased cortisol levels, suggesting that victimization is not as stressful as exclusion. ... > full story
Does hypertension affect brain capacity? (November 21, 2011) -- Can the course of dementias and mild cognitive impairment be influenced by diseases and risk factors? Larger numbers of people are affected by mild cognitive impairments and dementia, which means that early detection of possible precursors as well as diagnosis and therapy of risk factors that can actually be influenced are gaining in importance. ... > full story
Genetic rearrangements drive 5 to 7 percent of breast cancers (November 20, 2011) -- Researchers have discovered two cancer-spurring gene rearrangements that may trigger 5 to 7 percent of all breast cancers. ... > full story
Finnish researchers discover regulator of human cell activity (November 20, 2011) -- Researchers in Finland have discovered that the SHARPIN protein regulates human cell activity. ... > full story
Social media has role in delivery of healthcare but patients should proceed with caution, experts say (November 20, 2011) -- Social networking sites like Facebook and YouTube can be powerful platforms to deliver and receive healthcare information, especially for patients and caregivers who are increasingly going online to connect and share experiences with others with similar medical issues or concerns. However, experts say these sites may lack patient-centered information and can also be sources of misleading information that could potentially do more harm than good, according to the results of two separate social media-related studies unveiled today. ... > full story
Protection from severe malaria explained (November 19, 2011) -- Why do people with a hereditary mutation of the red blood pigment hemoglobin (as is the case with sickle-cell anemia prevalent in Africa) not contract severe malaria? Scientists have now solved this mystery. ... > full story
New tool saves time, reduces risk of mistakes in diabetes care (November 19, 2011) -- In the fast-paced world of health care, doctors are often pressed for time during patient visits. Researchers have now developed a tool that allows doctors to view electronic information about patients' health conditions related to diabetes on a single computer screen. A new study shows that this tool, the diabetes dashboard, saves time, improves accuracy and enhances patient care. ... > full story
Paving the way for better prevention and management of delirium (November 19, 2011) -- Important clues to the prevention and management of delirium, a condition affecting an estimated seven million hospitalized Americans, are being ignored, according to a new study. ... > full story
Unraveling how a mutation can lead to psychiatric illness (November 18, 2011) -- A new study demonstrates how DISC1 variants impair signaling pathways and disrupt brain development. ... > full story
'Silent' stroke risk factors for children with sickle cell anemia (November 18, 2011) -- Factors such as low hemoglobin levels, increased systolic blood pressure, and male gender are linked to a higher risk of silent cerebral infarcts, or silent strokes, in children with sickle cell anemia, according to results from a large, first-of-its-kind study. ... > full story
Nanoparticles used as additives in diesel fuels can travel from lungs to liver (November 18, 2011) -- Recent studies have demonstrated that nanoparticles of cerium oxide -- common diesel fuel additives used to increase the fuel efficiency of automobile engines -- can travel from the lungs to the liver and that this process is associated with liver damage. ... > full story
Job market for college grads braced for slow but steady growth (November 18, 2011) -- After last year's rollercoaster ride, the job market for college graduates has settled down and appears braced for slow but steady growth, according to a new study. ... > full story
How Legionnaires' bacteria proliferate, cause disease (November 18, 2011) -- Scientist have determined for the first time how the bacterium that causes Legionnaires' disease manipulates our cells to generate the amino acids it needs to grow and cause infection and inflammation in the lungs. ... > full story
Panel of melanoma mutations opens door to new treatment possibilities (November 18, 2011) -- Researchers have developed a new genetic screening tool that will aid in the investigation of possible treatments for patients with melanoma and the unique genetic mutations that may accompany the disease, according to new research. ... > full story
Treatment for juvenile offenders shows shows positive results 22 years later (November 18, 2011) -- A researcher, developed a treatment for juvenile offenders that has become one of the most widely used evidence-based treatments in the world. Now, he has found that the treatment continues to have positive effects on former participants more than 20 years after treatment. ... > full story
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