ScienceDaily Health Headlines
for Friday, September 2, 2011
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World Trade Center-exposed NYC firefighters face increased cancer risk, study finds (September 2, 2011) -- In the largest cancer study of firefighters ever conducted, researchers have found that New York City firefighters exposed to the Sept. 11 World Trade Center (WTC) disaster site were at least 19 percent more likely to develop cancer in the seven years following the disaster as their non-exposed colleagues and up to 10 percent more likely to develop cancer than a similar sample from the general population. ... > full story
Study finds more gut reaction to arthritis drugs; Stomach acid-suppressing drugs appear to damage small intestine (September 2, 2011) -- A research team has found stomach acid-reducing drugs, known as proton pump inhibitors, may actually be aggravating damage in the small intestine caused by nonsteroidal anti-inflammatory drugs, also known as NSAIDs. ... > full story
Language speed versus efficiency: Is faster better? (September 2, 2011) -- A recent study of the speech information rate of seven languages concludes that there is considerable variation in the speed at which languages are spoken, but much less variation in how efficiently languages communicate the same information. ... > full story
Persistent immunity: Researchers find signals that preserve anti-viral antibodies (September 2, 2011) -- How does our remarkable immune system retain the ability to defend against viruses previously encountered? While antibodies persist in our blood for only a few short weeks, our bodies retain the cells that make specific, successful antibodies for decades. Researchers have determined the protein signals that keep the memory of old viruses alive, findings that may aid in creating better, more effective vaccines. ... > full story
Insomnia costing US workforce .2 billion a year in lost productivity, study shows (September 2, 2011) -- Insomnia is costing the average US worker 11.3 days, or ,280 in lost productivity every year, according to a new study considered to be more accurate than previous estimates. Researchers hope such numbers will prompt the implementation of screening and treatment programs for employees. Because insomnia is not considered an illness -- the kind that results in lost days at work -- employers tend to ignore its consequences. ... > full story
Signs of aging may be linked to undetected blocked brain blood vessels (September 1, 2011) -- Tiny blocked brain vessels may be the cause of many common signs associated with older age, according to new research. Brain autopsies showed more lesions in those with the most pronounced difficulty walking. Thirty percent of small brain lesions could only be seen under a microscope after study participants died. The lesions couldn't be detected by current scans. ... > full story
New half-match bone marrow transplant procedure yields promising outcomes for cancer patients (September 1, 2011) -- Half-matched bone marrow or stem cell transplants for blood cancer patients have typically been associated with disappointing clinical outcomes. However, a clinical trial testing its unique, two-step half-match procedure has produced some promising results: the probability of overall survival was 45 percent in all patients after three years and 75 percent in patients who were in remission at the time of the transplant. ... > full story
Perception of facial expressions differs across cultures (September 1, 2011) -- Facial expressions have been called the "universal language of emotion," but people from different cultures perceive happy, sad or angry facial expressions in unique ways, according to new research. ... > full story
Decrease in smoking reduces death rates within months (September 1, 2011) -- A new study has found that a decrease in smoking rapidly reduces mortality rates in individuals and entire populations within six months. ... > full story
Really bad body odor? Undiagnosed TMAU may explain many cases of personal malodor (September 1, 2011) -- Scientists report that approximately one third of patients with unexplained body malodor test positive for the metabolic disorder trimethylaminuria (TMAU). A diagnosis offers relief to these individuals, as once the disease is identified, the debilitating symptoms can be ameliorated through changes in diet and other approaches. ... > full story
Habit makes bad food too easy to swallow (September 1, 2011) -- Do you always get popcorn at the movies? Or snack while you're on the couch watching television? A new article reveals why bad eating habits persist even when the food we're eating doesn't taste good. The study also reveals the surprisingly simple ways we can counter our habits to gain control over what we eat. ... > full story
Alzheimer's brains found to have lower levels of key protein (September 1, 2011) -- Researchers have found that a protein variation linked by some genetic studies to Alzheimer's disease is consistently present in the actual brains of people with Alzheimer's. In further biochemical and cell culture investigations, they have shown that this protein, known as ubiquilin-1, performs a critical Alzheimer's-related function: it "chaperones" the formation of amyloid precursor protein, a molecule whose malformation has been directly tied to Alzheimer's pathology. ... > full story
New understanding of role of telomeres in tumor growth (September 1, 2011) -- The first report of the presence of alternative lengthening of telomeres (ALT) in cancers arising from the bladder, cervix, endometrium, esophagus, gallbladder, liver, and lung was recently published. The presence of ALT in carcinomas can be used as a diagnostic marker and has implications for the development of anti-cancer drug therapies. ... > full story
Faster progress through puberty linked to behavior problems, study finds (September 1, 2011) -- Children who go through puberty at a faster rate are more likely to act out and to suffer from anxiety and depression, according to a new study. The results suggest that primary care providers, teachers and parents should look not only at the timing of puberty in relation to kids' behavior problems, but also at the tempo of puberty -- how fast or slow kids go through puberty. ... > full story
New culprit in Alzheimer’s disease: Too many blood vessels (September 1, 2011) -- Scientists may have uncovered a new explanation for how Alzheimer's disease destroys the brain -- a profusion of blood vessels. They suggest that the growth of capillaries leads to a breakdown of the blood-brain barrier, allowing amyloid beta, the hallmark of the neurodegenerative disease, to be deposited in the brain tissue. ... > full story
Bone marrow stem cell therapy safe for acute stroke, study suggests (September 1, 2011) -- Using a patient's own bone marrow stem cells to treat acute stroke is feasible and safe, according to the results of a ground-breaking Phase I trial. ... > full story
Trust in your neighbors could benefit your health (September 1, 2011) -- A new study shows that increasing trust in neighbors is associated with better self-reported health. ... > full story
Medicinal chemists modify sea bacteria byproduct for use as potential cancer drug (September 1, 2011) -- Scientists have modified a toxic chemical produced by tiny marine microbes and successfully deployed it against laboratory models of colon cancer. More work is needed before a human treatment can be considered, but it appears to be a novel way to kill tumor cells. ... > full story
Choice of seizure drug for brain tumor patients may affect survival (September 1, 2011) -- New research suggests brain tumor patients who take the seizure drug valproic acid on top of standard treatment may live longer than people who take other kinds of epilepsy medications to control seizures. ... > full story
How white blood cell promotes growth and spread of cancer (September 1, 2011) -- Scientists have shown that a particular white blood cell plays a direct role in the development and spread of cancerous tumors. ... > full story
Commonly used defibrillators raise risk of problems, study suggests (September 1, 2011) -- With defibrillators, simpler may be better, according to a new study. The group reviewed more than 100,000 records of cardiac patients. They found that there was more chance of surgical problems and death with devices that require electrical leads to be attached to two chambers of the heart compared to those that work on one chamber. ... > full story
Bullying: How do victims respond to bullies and why? (September 1, 2011) -- Many wonder why bullies bully, but a new study looks at the other side of the equation: How do children respond to bullying and why? The answer, researchers say, may lead to more effective interventions to reduce the negative consequences -- and perhaps even the frequency -- of bullying. ... > full story
Brain grows while body starves if growth is restricted before birth (September 1, 2011) -- When developing babies are growth restricted in the womb, they are typically born with heads that are large relative to their bodies. The growing brain is protected at the expense of other, less critical organs. Now, researchers unearth new molecular evidence that explains just how the brain is spared. ... > full story
Computer model for testing heart-disease drugs: Simulations solve decades-old mystery of failed anti-arrhythmia therapy (September 1, 2011) -- Researchers have developed an accurate computer model to test the effects of medications for arrhythmia, or abnormal heart rhythm, before they are used in patients. ... > full story
Anxiety interferes with some children's capacity to form friendships (September 1, 2011) -- Socially withdrawn children, who have less contact with peers, may miss out on the support that friendships provide. In a new study about the peer relationships of almost 2,500 fifth-graders who are socially withdrawn in different ways and those who aren't withdrawn, researchers have found that withdrawn children who can be described as "anxious-solitary" differ considerably in their relationships with peers, compared to other withdrawn children and children who aren't withdrawn. ... > full story
Clinical practice guidelines on interpretation of fractional exhaled nitric oxide (FENO) levels (September 1, 2011) -- The American Thoracic Society has issued the first-ever guidelines on the use of fractional exhaled nitric oxide (FENO) that address when to use FENO and how to interpret FENO levels in different clinical settings. The guidelines are graded based on the available evidence in the literature. ... > full story
Hospitals encouraged to consider value-added service of hospital-based radiology groups (September 1, 2011) -- Hospital executives should consider the value-added services of hospital-based radiology groups before allowing radiology departments to be taken over by teleradiologists or other specialists, according to a new article. ... > full story
Lung cancer ALK rearrangement may predict pemetrexed efficacy, study shows (September 1, 2011) -- Patients with ALK-rearranged non-small cell lung cancer (NSCLC) responded significantly better to pemetrexed (brand name: Alimta) than patients whose cancer did not show ALK translocation, according to new research. ... > full story
Fibrous stroma associated with poor prognosis in lung squamous cell carcinoma (September 1, 2011) -- The nature of the connective tissue surrounding lung cancer nests can help predict the aggressiveness of squamous cell carcinoma, according to new research. ... > full story
Radiologists urged to study U.S. federal regulations relating to meaningful use (September 1, 2011) -- Experts say, with an estimated .5 billion in potential bonus payments for radiology professionals at stake, radiologists should study and respond to recent U.S. federal regulations related to meaningful use of complete certified ambulatory electronic health records and their equivalents. ... > full story
Experts offer pointers for optimizing radiation dose in chest CT (September 1, 2011) -- A new article summarizes methods for radiation dose optimization in chest computed tomography (CT) scans. Chest CT is the third most commonly performed CT examination, frequently used to diagnose the cause of clinical signs or symptoms of the chest, such as cough, shortness of breath, chest pain or fever. ... > full story
World's largest cardiac arrest trial suggests longer initial paramedic CPR provides no benefit (August 31, 2011) -- A study involving nearly 10,000 cardiac arrest patients from 10 North American regions has shown that extending the period of initial cardiopulmonary resuscitation (CPR) by paramedics and firefighters from one to three minutes provides no benefit. The study resolves a worldwide controversy about cardiac arrest care. ... > full story
New bacterium found causing tick-borne illness ehrlichiosis in Wisconsin and Minnesota (August 31, 2011) -- A new tick-borne bacterium infecting humans with ehrlichiosis has been discovered in Wisconsin and Minnesota. Experts say the new species from the Ehrlichia genus can cause a feverish illness in humans. The new bacterium, not yet named, has been identified in more than 25 people and found in black-legged ticks, also known as deer ticks (Ixodes scapularis), in Minnesota and Wisconsin. Researchers used culture and genetic analyses. ... > full story
Mother-son ties change over time, influence teen boys' behavior (August 31, 2011) -- In a new longitudinal study of 265 mother-son pairs from low-income families in Pittsburgh, Pa., researchers found that mothers of boys who had a difficult temperament when they were toddlers reported that their relationships with the boys included a lot of conflict and lower levels of closeness over time. They also found that boys who experienced a lot of conflict with their mothers were more likely to engage in delinquent behavior as teens. ... > full story
Smoking after menopause may increase sex hormone levels: Elevated sex hormone levels associated with chronic disease risk (August 31, 2011) -- A recent study found that postmenopausal women who smoke have higher androgen and estrogen levels than non-smoking women, with sex hormone levels being highest in heavy smokers. ... > full story
Wakeup call for college students: New research finds you need to catch more Z's (August 31, 2011) -- A new study finds that college students are spending too much time burning the midnight oil and not enough time gaining the sleep that will benefit their ability to learn. ... > full story
Aerobic exercise bests resistance training at burning belly fat (August 31, 2011) -- Aerobic exercise is your best bet when it comes to losing that dreaded belly fat, a new study finds. When researchers conducted a head-to-head comparison of aerobic exercise, resistance training, and a combination of the two, they found aerobic exercise to be the most efficient and most effective way to lose the belly fat that's most damaging to your health. ... > full story
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