ScienceDaily: Health & Medicine News

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• Breakthrough against hospital superbug, klebsiella pneumonia
• Clear, strong stimulation may help prevent apathy for persons with dementia
• New study links excessive iron in cells with AMD, other diseases
• Bright light after night shift may enhance alertness and cognitive performance
• Study finds inadequate hydration among US children
• Stroke education helps patients recognize stroke symptoms, encourages fast response
• Implantable antibiotic-laced sponges reduce sternal infections in cardiac surgery
• New drug triggers tissue regeneration: Faster regrowth and healing of damaged tissues
• Dendritic cells of elite controllers able to recognize, mount defense against HIV
• Milk proteins may protect against cardiovascular disease
• Dental implants result in better quality of life for osteoporotic women
• Your phone knows how many steps you take per day, shouldn't your doctor?
• Most heart muscle cells formed during childhood
• Infants' superior perception linked to later autism symptoms
• Regular soda, please: Hormone that differentiates sugar, diet sweeteners could exist in humans
• Scientists find way to disrupt brain tumor stem cells
• Twitter data may help shed light on sleep disorders
• Daily aspirin could block growth of breast, other cancers, lab study suggests
• A protein provides emergency aid
• High salt prevents weight gain in mice on a high-fat diet
• Winner doesn't always take all
• DASH diet can substitute lean pork for chicken or fish to reduce blood pressure
• Longitudinal brain changes during transition from adolescence to adulthood found in ASD
• Gene modulation method may provide insight on regrowing inner-ear sensory hair cells
• New method detects early breast cancer via urine
• Large doses of antioxidants may be harmful to neuronal stem cells
• Women with lupus and APS at risk of reduced fertility and pregnancy complication
• Swift intervention doubles survival rate from cardiac arrest
• Weekend screen time linked to poorer bone health in teen boys

Breakthrough against hospital superbug, klebsiella pneumonia Posted: 11 Jun 2015 04:41 PM PDT Researchers have developed a cutting-edge new medical therapy that could protect hospital patients against a lethal superbug.

Clear, strong stimulation may help prevent apathy for persons with dementia Posted: 11 Jun 2015 02:42 PM PDT Nursing home residents with dementia are less likely to be apathetic if they live in an appropriately stimulating environment, according to nursing researchers. Apathy is one of the most common neurobehavioral symptoms in dementia, with about 90 percent of older adults with dementia experiencing it.

New study links excessive iron in cells with AMD, other diseases Posted: 11 Jun 2015 02:42 PM PDT A new molecular mechanism that contributes to age-related macular degeneration due to accumulation of excessive iron within the cells of the retina has been described in a new scientific report.

Bright light after night shift may enhance alertness and cognitive performance Posted: 11 Jun 2015 02:42 PM PDT Bright light at the end of a night shift may have potential as a countermeasure to improve driving performance, particularly for low light work environments and commutes that occur before dawn, a new study suggests.

Study finds inadequate hydration among US children Posted: 11 Jun 2015 02:42 PM PDT More than half of all children and adolescents in the US are not getting enough hydration -- probably because they're not drinking enough water -- a situation that could have significant repercussions for their physical health and their cognitive and emotional functioning, according to the first national study of its kind.

Stroke education helps patients recognize stroke symptoms, encourages fast response Posted: 11 Jun 2015 02:41 PM PDT Clear, simple preparedness messages can help patients recognize symptoms of a subsequent stroke and speed up emergency room arrival times. Stroke education materials dramatically improved hospital arrival times, specifically among Hispanic stroke patients, a new study suggests.

Implantable antibiotic-laced sponges reduce sternal infections in cardiac surgery Posted: 11 Jun 2015 02:34 PM PDT Cardiac surgeons often "crack open" the flat bone that forms the middle front section of the chest, known as the sternum, in order to reach important structures. When a sternal wound infection (SWI) occurs, serious complications and even death may result. Implanting antibiotic-laden sponges between the sternal halves before closure has been adapted to prevent infections. While a recent report questioned this practice, a meta-analysis clearly established that the sponges do work.

New drug triggers tissue regeneration: Faster regrowth and healing of damaged tissues Posted: 11 Jun 2015 11:44 AM PDT The concept sounds like the stuff of science fiction: take a pill, and new tissues grow to replace damaged ones. Researchers have now announced steps toward turning this idea into reality. They have detailed how a new drug repaired damage to the colon, liver and bone marrow in animal models -- even saving mice who would have died in a bone marrow transplantation model.

Dendritic cells of elite controllers able to recognize, mount defense against HIV Posted: 11 Jun 2015 11:44 AM PDT Investigators have added another piece to the puzzle of how a small group of individuals known as elite controllers are able to control HIV infection without drug treatment. The research team reports finding that dendritic cells of elite controllers are better able to detect the presence of HIV, which enables them to stimulate the generation of T cells specifically targeting the virus.

Milk proteins may protect against cardiovascular disease Posted: 11 Jun 2015 11:40 AM PDT The Maillard reaction is a chemical reaction between amino acids and reducing sugars that results in browned foods like seared steaks and toasted bread. When proteins and sugars are mixed together and heated, new chemical compounds are formed. Some are responsible for new flavors and some, according to a new study may protect us against cardiovascular disease.

Dental implants result in better quality of life for osteoporotic women Posted: 11 Jun 2015 10:15 AM PDT With age, postmenopausal women with osteoporosis are at greater risk of losing their teeth. But what treatment for tooth loss provides women with the highest degree of satisfaction in their work and social lives?

Your phone knows how many steps you take per day, shouldn't your doctor? Posted: 11 Jun 2015 09:30 AM PDT The rise of health apps has made it possible to chart your steps, heartbeat, and sleep patterns, but the availability of this constant stream of information has yet to reach patient electronic health records. In a commentary, researchers argue that these mobile devices could rapidly reshape the practice of medicine. The first steps though will be creating standards that can enforce cross-platform communications.

Most heart muscle cells formed during childhood Posted: 11 Jun 2015 09:29 AM PDT New human heart muscle cells can be formed, but this mainly happens during the first 10 years of life, according to a new study. Other cell types, however, are replaced more quickly. The study demonstrates that the heart muscle is regenerated throughout a person's life, supporting the idea that it is possible to stimulate the rebuilding of lost heart tissue.

Infants' superior perception linked to later autism symptoms Posted: 11 Jun 2015 09:29 AM PDT People with autism are often described as 'seeing the world differently.' They tend to show superior perception for details, like, for example, the autistic artist Stephen Wiltshire's highly accurate representations of cityscapes drawn from memory. Now, researchers show that those differences in perceptual skill are present very early in infancy, before the onset of clinical symptoms of autism.

Regular soda, please: Hormone that differentiates sugar, diet sweeteners could exist in humans Posted: 11 Jun 2015 09:26 AM PDT We've all been there: We eat an entire sleeve of fat-free, low-calorie cookies and we're stuffing ourselves with more food 15 minutes later. One theory to explain this phenomenon is that artificial sweeteners don't contain the calories or energy that evolution has trained the brain to expect from sweet-tasting foods, so they don't fool the brain into satisfying hunger. However, until now, nobody understood how organisms distinguish between real sugar and artificial sweetener.

Scientists find way to disrupt brain tumor stem cells Posted: 11 Jun 2015 09:26 AM PDT Brain tumor stem cells can resist treatment and regrow tumors, but scientists have identified a vulnerability in these cells that could lead to a new approach in battling deadly brain tumors.

Twitter data may help shed light on sleep disorders Posted: 11 Jun 2015 08:45 AM PDT Researchers have built the beginnings of 'digital phenotype' of insomnia and other sleep disorders based on data from Twitter.

Daily aspirin could block growth of breast, other cancers, lab study suggests Posted: 11 Jun 2015 08:45 AM PDT A new lab study found that a daily dose of aspirin was effective at blocking breast tumor growth. Previous studies have already shown a similar effect on colon, gastrointestinal, prostate, and other cancers.

A protein provides emergency aid Posted: 11 Jun 2015 08:44 AM PDT Small heat shock proteins ensure that other proteins do not clot, allowing the cell to survive stress. Defects in these 'small helpers' are associated with medical conditions like cataracts and cancer. Now, scientists have characterized a small heat shock protein responsible for embryonic development in the Caenorhabditis elegans nematode. Presumably, a similar protein exists also in humans.

High salt prevents weight gain in mice on a high-fat diet Posted: 11 Jun 2015 08:44 AM PDT In a study that seems to defy conventional dietary wisdom, scientists have found that adding high salt to a high-fat diet actually prevents weight gain in mice. The findings highlight the profound effect non-caloric dietary nutrients can have on energy balance and weight gain, and suggest that public health efforts to continue lowering sodium intake may have unexpected and unintended consequences.

Winner doesn't always take all Posted: 11 Jun 2015 08:44 AM PDT Theoretically predicted and now demonstrated experimentally for the first time using soil bacteria: weaker organisms can prevail against stronger ones -- if they are superior in number. This acts as a driving mechanism in the maintenance of genetic diversity, scientists report.

DASH diet can substitute lean pork for chicken or fish to reduce blood pressure Posted: 11 Jun 2015 08:44 AM PDT Adults who are following the DASH-style eating pattern to lower their blood pressure can expand their protein options to include lean, unprocessed pork, according to research. This study applies only to cuts of unprocessed lean pork, such as tenderloin and fresh, uncured ham trimmed of visible fat.

Longitudinal brain changes during transition from adolescence to adulthood found in ASD Posted: 11 Jun 2015 08:44 AM PDT The atypical trajectory of cortical/brain development in autism spectrum disorder extends well beyond young childhood and into late adolescence and young adulthood, a new study demonstrates.

Gene modulation method may provide insight on regrowing inner-ear sensory hair cells Posted: 11 Jun 2015 08:42 AM PDT An expert in the biology and physiology of the inner ear has developed a method to temporally modify the expression of the retinoblastoma-1 gene in mice. Modulation of the RB1 gene can allow for the regrowth of cells in the inner ear and potentially restore hearing and balance caused by the loss of sensory hair cells.

New method detects early breast cancer via urine Posted: 11 Jun 2015 06:19 AM PDT Medical researchers have developed an approach for detecting breast cancer by means of urine samples. The method involves determining the concentration of molecules that regulate cell metabolism and that are often dysregulated in cancer cells. These molecules, referred to as microRNAs, enter into the urine over the blood. By determining the composition of microRNAs in the urine, the scientists succeeded in establishing with 91 percent accuracy whether a test subject was healthy or diseased.

Large doses of antioxidants may be harmful to neuronal stem cells Posted: 11 Jun 2015 06:13 AM PDT Stem cells are especially sensitive to oxygen radicals and antioxidants shows new research.

Women with lupus and APS at risk of reduced fertility and pregnancy complication Posted: 11 Jun 2015 05:22 AM PDT New recommendations for women's health and pregnancy in patients with systemic lupus erythematosus and/or antiphospholipid syndrome (APS) were recently developed. These evidence-based recommendations provide crucial guidance to support family planning, assisted reproduction, pregnancy and the menopause in these patients.

Swift intervention doubles survival rate from cardiac arrest Posted: 11 Jun 2015 05:15 AM PDT Researchers have found that early cardiopulmonary resuscitation more than doubles the chance of survival for patients suffering out-of-hospital cardiac arrest. The percentage of patients who receive life-saving resuscitation has also increased substantially thanks to so-called SMS Lifesavers.

Weekend screen time linked to poorer bone health in teen boys Posted: 10 Jun 2015 04:09 PM PDT Weekend screen time is linked to poorer teen bone health -- but only in boys, reveals new research. The apparent lack of impact of leisure screen time on teen girls' bone health may be explained by their different body fat distribution, suggest the researchers.

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