Body

Tissue testing during breast cancer lumpectomies

ROCHESTER, Minn. — Unique laboratory testing during breast cancer lumpectomies to make sure surgeons remove all cancerous tissue spares patients the need for a repeat lumpectomy in roughly 96 percent of cases at Mayo Clinic in Rochester, a success rate much higher than the rate nationally, a Mayo study shows.

Parental obesity and autism risk in the child

Several studies have looked at possible links between maternal obesity during pregnancy and the risk of developmental disorders in the child. However, paternal obesity could be a greater risk factor than maternal obesity, according to a new study from the Norwegian Institute of Public Health.

As the first researcher to study the role of paternal obesity in autism, Dr. Pål Surén emphasises that this is still a theory and requires much more research before scientists can discuss possible causal relationships.

Health benefits of 'green exercise' for kids shown in new study

Children who are exposed to scenes of nature while exercising are more likely to experience health-enhancing effects after activity, according to a Coventry University study published this week in the International Journal of Environmental Research and Public Health.

Sports science academics in the University's Department of Applied Sciences and Health asked kids aged 9-10 years to complete a series of 15 minute moderate intensity cycling activities – one whilst viewing a video of a forest track synced to the exercise bike and another with no visual stimulus.

Energizing sick mitochondria with vitamin B3

Vitamins B have recently been turned out to be potent modifiers of energy metabolism, especially the function of mitochondria.

Vitamin B3, (niacin) has been found to delay the signs of aging in animal models.

Organic solar cells more efficient with molecules face-to-face

New research from North Carolina State University and UNC-Chapel Hill reveals that energy is transferred more efficiently inside of complex, three-dimensional organic solar cells when the donor molecules align face-on, rather than edge-on, relative to the acceptor. This finding may aid in the design and manufacture of more efficient and economically viable organic solar cell technology.

Switching off anxiety with light

Receptors for the messenger molecule serotonin can be modified in such a way that they can be activated by light. Together with colleagues, neuroscientists from the Ruhr-Universität Bochum (RUB) report on this finding in the journal "Neuron". An imbalance in serotonin levels seems to cause anxiety and depression. The researchers have provided a new model system for investigating the mechanism underlying these dysfunctions in cell cultures as well as living organisms.

G protein coupled receptors play an important role in medicine and health

The tiniest greenhouse gas emitters

Climate feedbacks from decomposition by soil microbes are one of the biggest uncertainties facing climate modelers. A new study from the International Institute for Applied Systems Analysis (IIASA) and the University of Vienna shows that these feedbacks may be less dire than previously thought.

The dynamics among soil microbes allow them to work more efficiently and flexibly as they break down organic matter – spewing less carbon dioxide into the atmosphere than previously thought, according to a new study published in the journal Ecology Letters.

Exploring the genetics of 'I'll do it tomorrow'

Procrastination and impulsivity are genetically linked, suggesting that the two traits stem from similar evolutionary origins, according to research published in Psychological Science, a journal of the Association for Psychological Science. The research indicates that the traits are related to our ability to successfully pursue and juggle goals.

New method for prostate cancer detection can save millions of men painful examination

Each year prostate tissue samples are taken from over a million men around the world – in most cases using 12 large biopsy needles – to check whether they have prostate cancer. This medical procedure, which was recently described by an American urology professor as 'barbaric'**, shows that 70% of the subjects do not have cancer. The examination is unnecessarily painful and involves risk for these patients, and it is also costly to carry out.

Gene sequencing project discovers mutations tied to deadly brain tumors in young children

(MEMPHIS, TENN. - April 6, 2014) The St. Jude Children's Research Hospital-Washington University Pediatric Cancer Genome Project has identified new mutations in pediatric brain tumors known as high-grade gliomas (HGGs), which most often occur in the youngest patients. The research appears today as an advance online publication in the scientific journal Nature Genetics.

Parental obesity and autism risk in the child

Several studies have looked at possible links between maternal obesity during pregnancy and the risk of developmental disorders in the child. However, paternal obesity could be a greater risk factor than maternal obesity, according to a new study from the Norwegian Institute of Public Health.

As the first researcher to study the role of paternal obesity in autism, Dr. Pål Surén emphasises that this is still a theory and requires much more research before scientists can discuss possible causal relationships.

Twitter use linked to infidelity and divorce, MU study finds

COLUMBIA, Mo. – Twitter and other social networking services have revolutionized the way people create and maintain relationships. However, new research shows that Twitter use could actually be damaging to users' romantic relationships. Russell Clayton, a doctoral student in the University of Missouri School of Journalism, found that active Twitter users are far more likely to experience Twitter–related conflict with their romantic partners.

Cleft palate discovery in dogs to aid in understanding human birth defect

UC Davis School of Veterinary Medicine researchers have identified the genetic mutation responsible for a form of cleft palate in the dog breed Nova Scotia Duck Tolling Retrievers.

They hope that the discovery, which provides the first dog model for the craniofacial defect, will lead to a better understanding of cleft palate in humans. Although cleft palate is one of the most common birth defects in children, affecting approximately one in 1,500 live human births in the United States, it is not completely understood.

La Jolla Institute discovers new mechanism for unleashing immune system against cancer

SAN DIEGO – (April 7th, 2014) A major discovery that brings a new drug target to the increasingly exciting landscape of cancer immunotherapy was published yesterday by researchers from La Jolla Institute for Allergy and Immunology and their collaborators from other institutes.

Scientists uncover startlingly new functional details of common anti-diabetic drugs

JUPITER, FL, April 7, 2014 – Scientists thought they basically knew how the most common drugs used to treat type 2 diabetes worked, but a new study from the Florida campus of The Scripps Research Institute (TSRI) reveals unexpected new aspects of the process. These findings could eventually lead to more potent anti-diabetic drugs with fewer serious side effects.

The study was published in the April 7, 2014 issue of the journal Nature Communications.