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Friday, July 12, 2013

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Gene therapy using lentivirus to treat Wiskott-Aldrich Syndrome promising

Posted: 11 Jul 2013 11:24 AM PDT

Researchers have developed a new gene therapy approach to treatment of Wiskott-Aldrich Syndrome, a fatal inherited form of immunodeficiency.

Nerves play key role in triggering prostate cancer and influencing its spread

Posted: 11 Jul 2013 11:23 AM PDT

Researchers have found that nerves play a critical role in both the development and spread of prostate tumors. Their findings, using both a mouse model and human prostate tissue, may lead to new ways to predict the aggressiveness of prostate cancer and to novel therapies for preventing and treating the disease.

The brain processes complex stimuli more cumulatively than we thought

Posted: 11 Jul 2013 11:23 AM PDT

A new study reveals that the representation of complex features in the brain may begin in a hierarchically lower brain region than previously thought.

Buying behavior can be swayed by cultural mindset

Posted: 11 Jul 2013 10:57 AM PDT

People with collectivist mindsets tend to value the relationships between items more than the particular items themselves. Those with individualistic mindsets seem to do just the opposite.

Cry analyzer seeks clues to babies' health

Posted: 11 Jul 2013 10:56 AM PDT

Researchers have developed a new tool that analyzes the cries of babies, searching for clues to potential health or developmental problems. Slight variations in cries, mostly imperceptible to the human ear, can be a "window into the brain" that could allow for early intervention.

Why do we enjoy listening to sad music?

Posted: 11 Jul 2013 10:54 AM PDT

Sad music might actually evoke positive emotions, reveals a new study by Japanese researchers.

Ground-breaking new method of 'starving' cancer cells

Posted: 11 Jul 2013 10:54 AM PDT

Researchers have discovered a novel way of killing cancer cells. The scientists found a new potential treatment for cancer, which leaves the body's healthy cells undamaged, unlike traditional therapies such as radiotherapy.

Obese dads pass on predisposition to obesity and metabolic disorders to their kids

Posted: 11 Jul 2013 10:54 AM PDT

If you are obese and hope to be a father, here's another reason to lose weight: your children and grandchildren may inherit your waistline or metabolic disorders. Scientists have discovered in mice that obese fathers, even those with no symptoms of diabetes, passed this negative trait on most frequently to their daughters. Sons don't dodge this genetic bullet either -- both sons and daughters of obese fathers have increased risks of developing metabolic diseases.

Whole chickens from farmers markets may have more pathogenic bacteria

Posted: 11 Jul 2013 10:54 AM PDT

Raw, whole chickens purchased from farmers markets throughout Pennsylvania contained significantly higher levels of bacteria that can cause foodborne illness compared to those purchased from grocery stores in the region, according to a small-scale study.

First full genome sequencing for autism: Promise for future diagnosis, prevention and treatment

Posted: 11 Jul 2013 10:53 AM PDT

New research has found that full genome sequencing provides the definitive look at wide ranging genetic variations associated with ASD. Inherited, de novo and X-linked genetic alterations found in one half of the affected families sequenced included four newly identified risk genes, nine known and eight candidate ASD risk genes, and in genes associated with fragile X, epilepsy or related syndromes. Some families had a combination of genes involved.

Hippo pathway to better cancer treatment? Unusual key to regulating cell growth

Posted: 11 Jul 2013 10:53 AM PDT

Researchers have discovered a potential new pathway to treat cancer by asking some odd questions about the size of animals.

Critical pathway in cell cycle may lead to cancer development

Posted: 11 Jul 2013 10:52 AM PDT

Researchers' findings on chromosome shortening suggest a potential target to arrest cancer cell growth.

Researchers regenerate retina in mice using neuronal reprogramming

Posted: 11 Jul 2013 10:47 AM PDT

Researchers in Spain have managed to regenerate the retina in mice using neuronal reprogramming. There are currently several lines of research that explore the possibility of tissue regeneration through cell reprogramming. One of the mechanisms being studied is reprogramming through cell fusion.

Molecular discovery puts cancer treatment in a new perspective

Posted: 11 Jul 2013 08:34 AM PDT

Researchers have obtained ground-breaking new knowledge about proteases - important enzymes which, among other things, play a role in the development of cancer cells. The findings may be significant for the development of cancer drugs.

Delayed puberty: First estrogen receptor mutation found in a young woman

Posted: 11 Jul 2013 08:34 AM PDT

A receptor mutation that essentially blocks estrogen's action has been identified for the first time in a female, researchers report.

Higher BMI increases risk of gallstones, especially in women, study finds

Posted: 11 Jul 2013 08:33 AM PDT

New research reveals a causal association between elevated body mass index (BMI) and increased risk of gallstone disease. Results show women are at greater risk of developing gallstones.

Factors that may cause fluctuations in deep brain stimulation levels over time

Posted: 11 Jul 2013 07:33 AM PDT

Deep brain stimulation therapy blocks or modulates electrical signals in the brain to improve symptoms in patients suffering from movement disorders such as Parkinson's disease, essential tremor and dystonia, but a new study suggests that several factors may cause electrical current to vary over time.

Cells in the early embryo battle each other to death for becoming part of the organism

Posted: 11 Jul 2013 07:32 AM PDT

Researchers have found that during the early stages of mammalian development, embryonic cells embark on a battle for survival. Through this battle, the less active of these cells are eliminated by their stronger sisters.

Hidden strains of HPV found in 'virus-negative' genital warts

Posted: 11 Jul 2013 07:32 AM PDT

Researchers assessed the DNA found in samples taken from 40 patients with 'virus-negative' genital warts. Through a general DNA sequencing approach, the researchers showed that several of the negative samples did in fact contain HPV DNA.

New insight into the human genome through the lens of evolution

Posted: 11 Jul 2013 07:31 AM PDT

By comparing the human genome to the genomes of 34 other mammals, Australian scientists have described an unexpectedly high proportion of functional elements conserved through evolution. While other studies have shown that around 5-8 percent of the genome is conserved at the level of DNA sequence, indicating that it is functional, the new study shows that in addition much more, possibly up to 30 percent, is also conserved at the level of RNA structure.

Acceptance of what cannot be changed predicts satisfaction in later life

Posted: 11 Jul 2013 07:30 AM PDT

Accepting what cannot be changed is key to happiness in old age after loss of independence. When older adults lose control as they move into residential care, they adapt and accept what cannot be changed in order to stay happy. According to a new study, when it comes to satisfaction in later life the ability to accept what cannot be changed is as important as the feeling of being able to exert control.

Later cord clamping after birth increases iron levels in babies

Posted: 11 Jul 2013 05:49 AM PDT

Delaying clamping of the umbilical cord after birth benefits newborn babies, according to a systematic review. The authors found babies' blood and iron levels were healthier when the cord was clamped later.

Do antibiotics in animal feed pose a serious risk to human health?

Posted: 11 Jul 2013 05:48 AM PDT

As fears rise over antibiotic resistance, two experts debate whether adding antibiotics to animal feed poses a serious risk to human health.

Combination of smoking and heavy drinking 'speeds up cognitive decline'

Posted: 11 Jul 2013 05:47 AM PDT

The combination of smoking and heavy drinking speeds up cognitive decline, according to new research.

Parental divorce in childhood is linked to raised inflammation in adulthood

Posted: 11 Jul 2013 05:45 AM PDT

People who experience parental divorce during childhood have higher levels of an inflammatory marker in the blood which is known to predict future health, according to new research from the United Kingdom.

Cells make costume changes for cardiac regeneration

Posted: 11 Jul 2013 05:45 AM PDT

If the heart following a heart attack is not sufficiently supplied with blood, heart tissue dies. In adult humans, the ability to heal itself is hardly developed. Scientists have now observed in the embryo of the zebrafish that muscle cells migrate from the undamaged atrium into the ventricle and thus significantly contribute to regeneration. This could serve as the basis for novel therapeutic approaches.

Surprising detail about skin cancer uncovered

Posted: 11 Jul 2013 05:41 AM PDT

An international team of melanoma researchers confirmed that the chances of dying from skin cancer depend strongly upon how thick the primary tumor is. But -- unexpectedly -- the team also found that those having more than one primary tumor have better survival odds.

Kids' allergies may correlate with omega-3, omega-6 lipid levels in cord blood

Posted: 10 Jul 2013 03:29 PM PDT

Children with high proportions of poly-unsaturated fatty acids in cord blood at birth are more likely to develop respiratory and skin allergies in their early teens, according to new research.

Tots who sleep less have more behavior problems, study finds

Posted: 10 Jul 2013 08:42 AM PDT

Four-year-olds with shorter than average sleep times have increased rates of "externalizing" behavior problems, a new study finds.

New evidence shows link between childhood trauma and psychotic experiences

Posted: 10 Jul 2013 07:38 AM PDT

Researchers in Ireland have demonstrated that exposure to childhood trauma (physical assault and bullying) is linked to psychotic experiences, (such as hearing voices), and in turn the cessation of traumatic experiences led to a significant reduction in the incidence of psychotic experiences.

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