ScienceDaily: Health & Medicine News

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• Discovery could prevent development of brain tumors in children
• In-depth analysis of bat influenza viruses concludes they pose low risk to humans
• Sense of invalidation uniquely risky for troubled teens
• Ebola genome browser now online to aid researchers' response to crisis
• Socioeconomic factors, fashion trends linked to increase in melanoma
• CDC team assisting Ebola response in Dallas, Texas; Investigation of first U.S. Ebola case underway
• The larger your friends the larger your appetite, study shows
• Link between depression, abnormal brain response to visceral pain in patients with IBS
• DNA 'bias' may keep some diseases in circulation, biologists show
• Common painkillers combined with other drugs may cause high risk of GI bleeding
• Dog's epigenome gives clues to human cancer
• Making old lungs look young again, with ibuprofen
• Parent coaching early intervention program benefits young children with autism
• Relationship between neighborhood drug sales, drug use found
• Schizophrenia, bipolar disorder associated with dendritic spine loss in brain
• Discovery helps to spot what makes a good drug
• Economist finds formula for 'perfect ask' in online fundraising
• Nanoparticles give up forensic secrets
• Science and practice of people-centerd health systems
• How to protect health workers in conflicts, crisis
• New drug achieves significant additional cholesterol-lowering in people with inherited high cholesterol on statins
• Energy drinks cause insomnia, nervousness in athletes
• Novel phenolic compounds discovered in barley, beer
• Space not only rules genes, but mind as well
• Drug-food interactions in mountaineering
• Fine tuning nanoparticles for the medical industry
• New molecule fights oxidative stress; May lead to therapies for cancer and Alzheimer's
• 'Stealth' nanoparticles could improve cancer vaccines

Discovery could prevent development of brain tumors in children Posted: 02 Oct 2014 11:18 AM PDT A mechanism that promotes the progression of medulloblastoma, the most common brain tumor found in children, has been discovered by researchers. The team found that a protein known as Sonic Hedgehog induces DNA damage causes the cancer to develop.

In-depth analysis of bat influenza viruses concludes they pose low risk to humans Posted: 02 Oct 2014 11:17 AM PDT Zoonosis -- transmission of infections from other vertebrates to humans -- causes regular and sometimes serious disease outbreaks. Bats are a well-known vertebrate reservoir of viruses like rabies and Ebola. Recent discovery of sequences in bats that are resemble influenza virus genes raised the question of whether bat flu viruses exist and could pose a threat to humans.

Sense of invalidation uniquely risky for troubled teens Posted: 02 Oct 2014 10:11 AM PDT A study of 99 teens hospitalized out of concern about suicide risk found that a high perception of family invalidation -- or lack of acceptance -- predicted future suicide events among boys, and peer invalidation predicted future self harm, such as cutting, among the teens in general.

Ebola genome browser now online to aid researchers' response to crisis Posted: 02 Oct 2014 09:53 AM PDT The UC Santa Cruz Genomics Institute has just released a new Ebola genome browser to assist global efforts to develop a vaccine and antiserum to help stop the spread of the Ebola virus.

Socioeconomic factors, fashion trends linked to increase in melanoma Posted: 02 Oct 2014 09:38 AM PDT Researchers explored extenuating factors, such as socioeconomic and fashion trends, that may have contributed to increased incidence of melanoma over the past century.

CDC team assisting Ebola response in Dallas, Texas; Investigation of first U.S. Ebola case underway Posted: 02 Oct 2014 09:37 AM PDT Ten experts from the Centers for Disease Control and Prevention -- supported 24/7 by the CDC's full Emergency Operations Center and Ebola experts in CDC's Atlanta headquarters -- have arrived in Texas and are working closely with Texas state and local health departments to investigate the first Ebola case in the United States. Nine members of the CDC team arrived last night and one arrived Oct. 1, 2014.

The larger your friends the larger your appetite, study shows Posted: 02 Oct 2014 09:37 AM PDT Have you ever ordered more food at a restaurant than you intended? There are elements of dining rooms that actually prime you to eat more food. One such element is the weight of those dining with or near you. A new study found that the body type of your dining partner, or that of those dining nearby, may actually influence how much you serve yourself and how much you eat.

Link between depression, abnormal brain response to visceral pain in patients with IBS Posted: 02 Oct 2014 09:36 AM PDT High rates of anxiety and depression amongst patients with irritable bowel syndrome (IBS) have led many researchers to believe there could be a causal relationship between psychological factors and IBS symptoms. Now, scientists have found clear evidence that patients with IBS process pain signals from the gut abnormally, and that disturbed brain responses to pain are particularly pronounced in patients with more depression symptoms.

DNA 'bias' may keep some diseases in circulation, biologists show Posted: 02 Oct 2014 09:36 AM PDT The process known as gene conversion has been studied in the context of the evolution of human populations. Researchers found that a bias toward certain types of DNA sequences during gene conversion may be an important factor in why certain heritable diseases persist in populations around the world.

Common painkillers combined with other drugs may cause high risk of GI bleeding Posted: 02 Oct 2014 07:12 AM PDT Nonsteroidal anti-inflammatory drugs -- such as ibuprofen and aspirin -- increase one's risk of upper gastrointestinal bleeding. When taken in combination with other drugs, this risk is significantly higher, according to new research.

Dog's epigenome gives clues to human cancer Posted: 02 Oct 2014 07:11 AM PDT The dog's epigenome has been characterized by researchers who transferred the results to human cancer to understand the changes in appearance of tumors. Study results suggest that act pharmacological action on these epigenetic alterations may be helpful in slowing disease progression.

Making old lungs look young again, with ibuprofen Posted: 02 Oct 2014 07:08 AM PDT The lungs become more inflammatory with age, researchers say, and add that ibuprofen can lower that inflammation. Immune cells from old mouse lungs fought tuberculosis bacteria as effectively as cells from young mice after lung inflammation was reduced by ibuprofen.

Parent coaching early intervention program benefits young children with autism Posted: 02 Oct 2014 07:08 AM PDT A parent coaching intervention brings meaningful benefits for preschool-aged children with autism-spectrum disorders (ASD), according to a clinical trial. The approach "fosters parents' interactional abilities and play skills to promote their children's functional development," according to the authors. Parents reported that they were able to engage their child in 15- to 20-minute play sessions and throughout daily routines, for a total of two hours per day.

Relationship between neighborhood drug sales, drug use found Posted: 02 Oct 2014 06:24 AM PDT A new study looks at neighborhood factors as a cause to explain illicit drug use, exploring the associations between the perceived frequency of drug sales, drug use, and peer attitudes towards drug use.

Schizophrenia, bipolar disorder associated with dendritic spine loss in brain Posted: 02 Oct 2014 06:24 AM PDT Schizophrenia and bipolar disorder both appear to be associated with dendritic spine loss in the brain, suggesting the two distinct disorders may share common pathophysiological features.

Discovery helps to spot what makes a good drug Posted: 02 Oct 2014 06:24 AM PDT A new test could revolutionize the discovery of new prescription drugs. The test will help determine which drugs are unlikely to work at an early stage, speeding up the time it takes to make safe and effective medicines available, scientists say.

Economist finds formula for 'perfect ask' in online fundraising Posted: 02 Oct 2014 06:24 AM PDT Going it alone and setting targets are part of the 'perfect ask' fundraising formula to generate the most online donations for charity events, according to research.

Nanoparticles give up forensic secrets Posted: 02 Oct 2014 05:43 AM PDT A group of researchers from Switzerland has thrown light on the precise mechanisms responsible for the impressive ability of nanoparticles to detect fingermarks left at crime scenes.

Science and practice of people-centerd health systems Posted: 02 Oct 2014 05:43 AM PDT A unique collection of studies exploring the theme of the Third Global Symposium on Health Systems Research has been published. This collection of studies on 'the science and practice of people-centred health systems' presents the latest in the field of health policy and systems research, bringing together research from Ethiopia, Uganda, Ghana, Nigeria, South Africa, India, Argentina and Brazil.

How to protect health workers in conflicts, crisis Posted: 02 Oct 2014 05:43 AM PDT Recruiting health workers with high levels of internal motivation is critical for work in difficult conditions, where their personal security and health might be compromised, according to new research.

New drug achieves significant additional cholesterol-lowering in people with inherited high cholesterol on statins Posted: 02 Oct 2014 05:43 AM PDT Evolocumab, an injected form of a new class of drugs called PCSK9 inhibitors, is highly effective at reducing low-density lipoprotein (LDL) or "bad cholesterol" levels with few side effects in people with familial hypercholesterolaemia (FH), an inherited condition that causes extremely high cholesterol and high risk of cardiovascular disease at an early age.

Energy drinks cause insomnia, nervousness in athletes Posted: 02 Oct 2014 05:43 AM PDT A study analyzing the positive and negative effects of energy drinks on athletes has seen that, although in principle their sports performance was seen to improve by between 3% and 7%, there was also an increase in the frequency of insomnia, nervousness and the level of stimulation in the hours following competition, scientists report.

Novel phenolic compounds discovered in barley, beer Posted: 02 Oct 2014 05:43 AM PDT Novel forms of phenolic compounds have been discovered from barley and beer. The results will open new interesting possibilities for evaluation of possible health benefits of barley and beer. The study shows that the diversity of chemical defense compounds typical to barley, namely hordatines and their precursors, is much larger than previously thought. These compounds are found in barley grains, but also in beers brewed from barley malts.

Space not only rules genes, but mind as well Posted: 02 Oct 2014 05:41 AM PDT Changes in spatial distribution of genetic material can lead to neuropsychiatric disorders, as discovered recently by researchers. The investigation of the genetically modified laboratory mice define new directions in the fight against neuropsychiatric disorders in humans; they also suggest that the results of some previous studies of mouse behavior might be misinterpreted.

Drug-food interactions in mountaineering Posted: 02 Oct 2014 05:41 AM PDT The nutritional and health situations existing at high altitudes, as well as the routinely used nutritional ergogenic and pharmacological aids, have been the focus of recent study. According to researchers, the possible interactions between drugs and food and nutrients taken may endanger the mountaineer's health if all this is not conducted under strict control.

Fine tuning nanoparticles for the medical industry Posted: 02 Oct 2014 05:41 AM PDT Nanoparticles have the potential to revolutionize the medical industry, but they must possess a few critical properties. First, they need to target a specific region, so that they do not scatter throughout the body. They also require some sort of sensing method, so that doctors and researchers can track the particles. Finally, they need to perform their function at the right moment, ideally in response to a stimulus. Scientists are trying to develop new particles with unprecedented properties that still meet these requirements.

New molecule fights oxidative stress; May lead to therapies for cancer and Alzheimer's Posted: 01 Oct 2014 03:59 PM PDT Breathing oxygen helps the body create energy for its cells. As a result of the breathing process, reactive molecules called 'free radicals' are produced that often cause damage to proteins and genes found in cells. This damage is known as oxidative stress. Free radicals also have been linked to cancer, Alzheimer's and Parkinson's disease. Now, investigators have discovered a molecule that treats oxidative stress.

'Stealth' nanoparticles could improve cancer vaccines Posted: 01 Oct 2014 07:27 AM PDT Cancer vaccines have recently emerged as a promising approach for killing tumor cells before they spread. But so far, most clinical candidates haven't worked that well. Now, scientists have developed a new way to deliver vaccines that successfully stifled tumor growth when tested in laboratory mice. And the key is in the vaccine's unique stealthy nanoparticles.

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