السبت، 14 نوفمبر 2015

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News


Delaying umbilical cord clamping for preterm infants results in better motor development

Posted: 13 Nov 2015 11:47 AM PST

Chemists turn bacterial molecules into potential drug molecules

Posted: 13 Nov 2015 11:45 AM PST

Chemists explain how they have created molecules that mimic and dominate toxic ones secreted by bacteria. The implications for the study of biology and pharmacology are said to be enormous.

Irradiated anthrax can be sequenced quickly

Posted: 13 Nov 2015 11:45 AM PST

These days, mail addressed to selected government offices gets irradiated, in order to kill any biological agents, notably anthrax spores. The downside of this is that viable spores have been needed to identify the anthrax strain, which can be critical to treating those infected. But now new research has shown that full sequences can quickly be determined from irradiated spores.

Not so happy old age?

Posted: 13 Nov 2015 08:56 AM PST

The notion that older people are happier than younger people is being challenged following a recent study. In fact it suggests that people get more depressed from age 65 onwards.

Parkinson's disease: A new tool for healthcare professionals aims to improve diagnosis and advance treatment

Posted: 13 Nov 2015 08:24 AM PST

A group of experts has developed a new tool for healthcare professionals that they hope will mark a significant advancement in the diagnosis and treatment of Parkinson's disease, especially in its early stages. The results of their study could also have a major impact on the quality of research on Parkinson's disease.

'You can always look better:' On norms and ideals in dental care

Posted: 13 Nov 2015 07:59 AM PST

The dental care industry spends a lot of time on supporting young people as they get through their often long and difficult orthodontic treatment. A new study has looked at the importance of norms when young people are offered correction of their teeth and bite.

New information about bacterial enzymes to help scientists develop more effective antibiotics, cancer drugs

Posted: 13 Nov 2015 07:56 AM PST

New research now allows researchers to manipulate nature's biosynthetic machinery to produce more effective antibiotics and cancer-fighting drugs.

Large study sums up health issues for new child refugees to U.S.

Posted: 13 Nov 2015 07:56 AM PST

For refugee children newly arrived in the US, hepatitis B, tuberculosis, parasitic worms, high blood lead levels and anemia are among the top public health concerns covered by screening programs. In one of this nation's largest-ever epidemiological studies of refugee children, public health researchers describe the health profiles of children arriving here in the past decade as their families fled persecution.

Child abuse rises in connection with soldiers' deployments

Posted: 13 Nov 2015 07:56 AM PST

Children under age two may be at heightened risk for abuse and neglect during the six months immediately following a parent's return from deployment in the US Army, and the risk may rise among Army families with soldiers who are deployed more than once, suggests new research.

Have an apple-shaped body? You may be more susceptible to binge eating

Posted: 13 Nov 2015 07:53 AM PST

Women with apple-shaped bodies -- those who store more of their fat in their trunk and abdominal regions -- may be at particular risk for the development of eating episodes during which they experience a sense of 'loss of control,' according to a new study.

Rare facial paralysis gives researchers new insights into social interaction

Posted: 13 Nov 2015 07:53 AM PST

Persons with facial paralysis or permanently disfigured faces often experience difficulties in their social interactions because they lack facial expressivity. A study of teenagers with the rare facial paralysis known as Möbius Syndrome shows that a course in alternative communication strategies such as gestures, body posture and prosody significantly improves interaction and rapport with conversation partners.

3-D printed objects that kill microbes

Posted: 13 Nov 2015 02:52 AM PST

Material scientists and orthodontists have made a 3D printing substrate which kills bacteria on contact. The first applications will be in dentistry, but other implants may follow.

Device-assisted feeding, poor growth in newborns with congenital heart disease may lead to poor neurodevelopment

Posted: 13 Nov 2015 02:15 AM PST

Newborns with a congenital heart defect often need advanced medical care to survive, leaving them vulnerable to cognitive delays. Various factors contribute to these delays. But what role does proper growth and feeding mode at the beginning of life play? A research team has found that newborns (up to three months) with poor growth and CHD, who required device-assisted feeding, were at an increased risk for neurodevelopmental delays at six and twelve months.

Genetic defect underlying a rare disease identified

Posted: 13 Nov 2015 02:13 AM PST

The genetic cause has been identified for a rare disease characterized by life-threatening "liver crises" in early childhood and subsequent manifestation of neurological symptoms, such as neuropathy and ataxia (a movement disorder), when the patient reaches school age. In 2007 the same researchers published a mutation in the Scyl1 gene in a naturally occurring mouse mutant with similar symptoms. Using next-generation sequencing techniques, they have now succeeded in identifying the first cases of a corresponding condition in humans.

Experimental drug targeting Alzheimer's disease shows anti-aging effects

Posted: 13 Nov 2015 02:11 AM PST

Scientists have discovered a molecule that slows the clock on key aspects of aging in animals.

Tracing activity of cancer-fighting tomato component

Posted: 13 Nov 2015 02:11 AM PST

Years of research have demonstrated that lycopene, the bioactive red pigment found in tomatoes, reduces growth of prostate tumors in a variety of animal models. When consumed, lycopene undergoes a change in its chemical structure that potentially influences health, the scientists say.

Drug could limit spread of deadly brain tumors

Posted: 13 Nov 2015 02:11 AM PST

In a significant breakthrough, researchers have identified a drug, propentofylline or PPF, that could help treat patients with deadly brain cancer. They report that PPF works to limit the spread of glioblastoma multiforme, or GBM -- the most common primary tumor of the brain and central nervous system -- by targeting a protein called TROY.

Eating sweets forms memories that may control eating habits

Posted: 13 Nov 2015 02:11 AM PST

Eating sweet foods causes the brain to form a memory of a meal, according to researchers.

Engineers develop 'killer cells' to destroy cancer in lymph nodes

Posted: 13 Nov 2015 02:11 AM PST

Biomedical engineers have developed specialized white blood cells -- dubbed 'super natural killer cells' -- that seek out cancer cells in lymph nodes with only one purpose: destroy them. This breakthrough halts the onset of metastasis, according to the research team.

Despite substantial progress, the world fell short of the maternal mortality target in the Millennium Development Goals, UN report shows

Posted: 13 Nov 2015 02:11 AM PST

Despite reducing maternal mortality by an impressive 44 percent between 1990 and 2015, the world fell well short of the target of a 75 percent reduction that appeared in the Millennium Development Goals, shows a new report.

Modeling the promise, peril of gene drive

Posted: 13 Nov 2015 02:09 AM PST

A new report builds on recent experimental work being carried out in gene drive using mathematical models to estimate how quickly such gene replacement can spread through a population, finding that genes can be fixed in a population quite quickly.

Dietary potassium may help prevent kidney, heart problems in diabetics

Posted: 13 Nov 2015 02:09 AM PST

Higher levels of urinary potassium excretion, which closely correlate with intake amounts, were linked with a slower decline of kidney function and a lower incidence of cardiovascular complications among patients with type 2 diabetes and normal kidney function.

Kidney failure and its treatment may impact cancer risk

Posted: 13 Nov 2015 02:09 AM PST

Risk of kidney and thyroid cancers was especially high when kidney failure patients were on dialysis, researchers have discovered. Conversely, risk of non-Hodgkin lymphoma, melanoma, lung cancer, and certain skin cancers was highest following kidney transplantation, likely due to immunosuppressant medications. Kidney failure is on the rise and currently afflicts an estimated 2 million people worldwide.

Brain structure may be root of apathy

Posted: 13 Nov 2015 02:09 AM PST

Scientists have found evidence of a biological basis for apathy in healthy people. Research could shed light on the way some people become pathologically apathetic, for example after a stroke or with Alzheimer's disease.

Bitter taste sensitivity may predict surgical outcome in certain chronic rhinosinusitus patients

Posted: 12 Nov 2015 02:11 PM PST

Physicians may someday be able to use a simple taste test to predict which surgical intervention is best suited to help a subset of chronic rhinosinusitis patients, new research suggests.

Barriers to health care increase disease, death risk for rural elderly

Posted: 12 Nov 2015 12:59 PM PST

A new study of adults ages 85 or older has found that rural residents have significantly higher levels of chronic disease, take more medications, and die several years earlier than their urban counterparts.

Dangerously hot playground temperatures explored by researcher

Posted: 11 Nov 2015 02:25 PM PST

Researchers have discovered that some playgrounds can have very hot temperatures, and that children in these areas can be burned by these extreme temperatures.

Human handouts could be spreading disease from birds to people

Posted: 11 Nov 2015 02:23 PM PST

People feeding white ibises at public parks are turning the normally independent birds into beggars, and now researchers say it might also be helping spread disease. They recently launched a study to find out how being fed by humans is changing the health, ecology and behavior of white ibises in south Florida, where construction and land development is drying up their wetland habitats.

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