ScienceDaily Health Headlines
for Tuesday, December 6, 2011
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Young women may reduce heart disease risk eating fish with omega 3 fatty acids, study finds (December 6, 2011) -- Women who seldom or never eat fish may be increasing their risk of cardiovascular disease by 50 percent or more, according to the first population-based study among younger women. Those who ate fish most often, especially fish rich in omega 3 fatty acids, had 90 percent lower risk than those who ate little or no fish. The link with cardiovascular disease was evident, even among women in their 30s. ... > full story
Prolonged fatigue for those who had chemotherapy for breast cancer, follow-up study finds (December 6, 2011) -- In a follow-up study, researchers have found that patients who receive chemotherapy for breast cancer might experience prolonged fatigue years after their therapy. The new study is a follow-up to a study on fatigue and chemotherapy and radiotherapy for breast cancer. ... > full story
Where is the accurate memory? The eyes have it (December 6, 2011) -- The witness points out the criminal in a police lineup. She swears she'd remember that face forever. Then DNA evidence shows she's got the wrong guy. It happens so frequently that many courts are looking with extreme skepticism at eyewitness testimony. ... > full story
Neurotransmitter dopamine might improve the treatment of cancer, new study suggests (December 6, 2011) -- A new study found that injections of the neurotransmitter dopamine can improve blood flow to tumors and delivery of an anticancer drug, doubling the amount of drug reaching tumors and increasing its effectiveness. Dopamine also raised tumor oxygen levels, which typically improves the effectiveness of both chemotherapy and radiation therapy. The study suggests a use for dopamine in treating cancer and perhaps other disorders in which normalizing abnormal blood vessels might improve therapeutic responses. ... > full story
More young people are becoming nurses; Trend may help ease future nursing shortage in U.S. (December 6, 2011) -- The number of young people becoming registered nurses has grown sharply since 2002, a trend that should ease some of the concern about a looming nursing shortage in the United States. ... > full story
Prevalence of conduct disorder among families of Mexican migrants in the U.S. examined in new study (December 6, 2011) -- The prevalence of conduct disorder appears to have increased substantially across generations of the Mexican-origin population after migration to the United States, however this increase was observed more for nonaggressive than aggressive symptoms of CD, according to a new study. ... > full story
Physical fitness trumps body weight in reducing death risks, study finds (December 5, 2011) -- Maintaining or improving physical fitness is linked to lower death risks even after controlling for BMI change, according to a new study. Becoming less fit is associated with higher death risks, regardless of BMI changes. BMI change was not associated with death risks. ... > full story
Dust storms affect subsequent emergency hospital admissions, study finds (December 5, 2011) -- A new study reveals that dust storms have an adverse effect on emergency hospital admission for chronic lung disease, often known as chronic obstructive pulmonary disease. ... > full story
Post-partum psychiatric episodes associated with increased risk of developing bipolar affective disorder, study finds (December 5, 2011) -- Experiencing a psychiatric episode within the first 30 days post-partum appears to be associated with an increased risk of developing bipolar affective disorder, according to a new study. ... > full story
Defensive measures: Toward a vaccine for Ebola (December 5, 2011) -- Researchers have made progress toward a vaccine against the deadly Ebola virus. They have demonstrated that a plant-derived vaccine for Ebola provided strong immunological protection in a mouse model. If early efforts bear fruit, an Ebola vaccine could be stockpiled for use in the United States, should the country fall victim to a natural outbreak or a bioterrorism event in which a weaponized strain of the virus were unleashed on soldiers or the public. ... > full story
Headaches after traumatic brain injury highest in adolescents and girls, study finds (December 5, 2011) -- In a new study, researchers analyzed the prevalence of headaches three and 12 months after mild, moderate or severe traumatic brain injury in children ages 5 to 17, and discovered the risk of headache was higher in adolescents (ages 13 to 17) and in girls. ... > full story
Can companies, political groups or organizations have a single mind? (December 5, 2011) -- News of employee misconduct always creates a whirlwind for the companies involved -- think of Enron, Goldman Sachs and UBS, for example. But are these firms responsible for the actions of their employees? Or do individual members have distinct and independent responsibility separate from a group's actions? ... > full story
Autism may involve disordered white matter in the brain (December 5, 2011) -- It's still unclear what's different in the brains of people with autism spectrum disorders, but evidence from genetic and cell studies points to abnormalities in how brain cells, connect to each other. A new study now provides visual evidence associating autism with a disorganized structure of brain connections, as well as defects in myelin -- the fatty, insulating coating that helps nerve fibers conduct signals and that makes up the brain's white matter. ... > full story
Antibiotics may not be only cause of community-acquired Clostridium difficile infection (December 5, 2011) -- Antibiotics may not be the only risk factor associated with community-acquired Clostridium difficile infection, indicating that other undefined causes of the potentially life-threatening infection may exist and could also predict whether or not a patient will require hospitalization, according to the results of a new study. ... > full story
Serendipitous news reading online is gaining prominence, study shows (December 5, 2011) -- New research shows that Internet users often do not make the conscious decision to read news online, but they come across news when they are searching for other information or doing non-news related activities online, such as shopping or visiting social networking sites. ... > full story
Preoperative aspirin therapy can benefit cardiac surgery patients, study finds (December 5, 2011) -- Aspirin taken within five days of cardiac surgery is associated with a significant decrease in the risk of major postoperative complications, including renal failure, a lengthy intensive care unit stay and even early death, according to a study by researchers at Thomas Jefferson University and UC Davis Medical Center set to appear in the journal Annals of Surgery. ... > full story
New way to rate severity of colitis, a common cause of diarrhea (December 5, 2011) -- Researchers have developed a new way to assess a common cause of chronic diarrhea, microscopic colitis, using the Microscopic Colitis Disease Activity Index. The index provides a consistent way to assess the condition's severity. ... > full story
Snakebite victims absent in health system as most consult traditional healers, research finds (December 5, 2011) -- Fatal snakebites are a bigger-than-acknowledged global health problem that has been vastly under-reported, according to new research. A key reason for the low count is that many snakebite victims are treated or die without seeking or reaching health facilities. ... > full story
New ADHD gene study points to defects in brain signaling pathways (December 5, 2011) -- Pediatric researchers analyzing genetic influences in attention-deficit/hyperactivity disorder have found alterations in specific genes involved in important brain signaling pathways. The study raises the possibility that drugs acting on those pathways might offer a new treatment option for patients with ADHD who have those gene variants -- potentially, half a million US children. ... > full story
Cell surface mutation protects against common type of malaria (December 5, 2011) -- A mutation on the surface of human red blood cells provides protection against malaria caused by the parasite Plasmodium vivax, new research shows. The investigators found the change makes it harder for the parasite to lock onto the cell and gain entry. ... > full story
New approach to study depression: Finding may lead to new marker for risk (December 5, 2011) -- Scientists have identified a new target area in the human genome that appears to harbor genes with a major role in the onset of depression. ... > full story
Factors associated with discrimination in specialty care access for children with public insurance examined in new study (December 5, 2011) -- In a study in which researchers posing as mothers attempted to schedule appointments for children at specialty clinics, affiliation of the clinic with an academic medical center was associated with fewer denials of appointments for children with Medicaid-CHIP coverage versus children with commercial insurance, according to a new study. ... > full story
American Society of Clinical Oncology issues annual report on progress against cancer (December 5, 2011) -- The American Society of Clinical Oncology has released Clinical Cancer Advances 2011: ASCO's Annual Report on Progress Against Cancer, an independent review of the advances in cancer research that have had the greatest impact on patient care this year. The report also identifies the most promising trends in oncology and provides insights from experts on where the future of cancer care is heading. ... > full story
Trends in quality of care and health care spending for depression examined in new study (December 5, 2011) -- Over a 10-year period, spending for Medicaid-enrolled patients with depression increased substantially but only minimal improvements in quality of care were observed, according to a new study. ... > full story
State policies mandating physical education and recess associated with increase in overall in-school physical activity among children (December 5, 2011) -- State and school district-level policies mandating minimum requirements for in-school physical education and recess time are associated with increased odds of schools in those states and districts meeting physical activity recommendations for students, according to a new study. ... > full story
Mothers are not reaching breastfeeding goals: What needs to change? (December 5, 2011) -- More mothers are breastfeeding their newborns, but for too short a duration to gain the maximum benefits of breastfeeding for both mothers and infants. New observations and a variety of strategies for encouraging women to breastfeed longer are presented in a collection of articles. ... > full story
Natural dye obtained from lichens may combat Alzheimer's disease (December 4, 2011) -- A red dye from lichens that has been used for centuries to color fabrics and food and a related substance appear to reduce the abundance of small toxic protein aggregates in Alzheimer's disease. Further research with animal models is needed to determine whether this new approach will be useful for therapy development. ... > full story
Scalable amounts of liver and pancreas precursor cells created using new stem cell production method (December 4, 2011) -- Scientists in Canada have overcome a key research hurdle to developing regenerative treatments for diabetes and liver disease with a technique to produce medically useful amounts of endoderm cells from human pluripotent stem cells. The research can be transferred to other areas of stem cell research helping scientists to navigate the route to clinical use known as the "valley of death." ... > full story
Why do some people never forget a face? (December 4, 2011) -- "Face recognition is an important social skill, but not all of us are equally good at it," says a cognitive psychologist. But what accounts for the difference? A new study provides the first experimental evidence that the inequality of abilities is rooted in the unique way in which the mind perceives faces. ... > full story
Tumor-targeting compound points the way to new personalized cancer treatments (December 3, 2011) -- One major obstacle in the fight against cancer is that anticancer drugs often affect normal cells in addition to tumor cells, resulting in significant side effects. Yet research into development of less harmful treatments geared toward the targeting of specific cancer-causing mechanisms is hampered by lack of knowledge of the molecular pathways that drive cancers in individual patients. ... > full story
Innovative approaches help sleep apnea sufferers benefit from CPAP (December 3, 2011) -- People with obstructive sleep apnea are more likely to stick to prescribed treatment when a partner or parent is involved with their treatment, according to a team of sleep researchers. ... > full story
Even unconsciously, sound helps us see (December 3, 2011) -- Imagine you are playing ping-pong with a friend. Your friend makes a serve. Information about where and when the ball hit the table is provided by both vision and hearing. And this is how the senses interact in how we perceive the world. ... > full story
Vegetables, fruits, grains reduce stroke risk in women (December 2, 2011) -- Swedish women who ate an antioxidant-rich diet had fewer strokes especially if they had no history of cardiovascular disease, according to a new study. The findings persisted even after statistics were adjusted for other risk factors such as smoking and physical activity. Women with the highest level of antioxidants in their diet consumed about half their antioxidants from fruits and vegetables. ... > full story
Research improves diagnosis and potential treatment of neuromyelitis optica (December 2, 2011) -- Researchers have identified critical steps leading to myelin destruction in neuromyelitis optica (NMO), a debilitating neurological disease that is commonly misdiagnosed as multiple sclerosis. The findings could lead to better care for the thousands of patients around the world with NMO. ... > full story
Impatient people have lower credit scores, study finds (December 2, 2011) -- Is there a psychological reason why people default on their mortgages? A new study finds that people with bad credit scores are more impatient -- more likely to choose immediate rewards rather than wait for a larger reward later. ... > full story
Fecal microbiota transplants effective treatment for C. difficile, inflammatory bowel disease, research finds (December 2, 2011) -- Growing evidence for the effectiveness of fecal microbiota transplants as a treatment for patients with recurrent bouts of Clostridium difficile associated diarrhea is presented in three studies -- including a long-term follow-up of colonoscopic fecal microbiota transplant for recurrent C. difficile Infection that included 77 patients from five different states. ... > full story
New evidence of an unrecognized visual process (December 2, 2011) -- We don't see only what meets the eye. The visual system constantly takes in ambiguous stimuli, weighs its options, and decides what it perceives. This normally happens effortlessly. Sometimes, however, an ambiguity is persistent, and the visual system waffles on which perception is right. Such instances interest scientists because they help us understand how the eyes and the brain make sense of what we see. ... > full story
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