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Rethinking bacterial persistence: Optofluidics allow for new understanding of resistance to antibiotics 2013-01-25

By Ecole Polytechnique Fédérale de Lausanne

Scientists have used microfluidics to observe the behavior of individual tuberculosis-like bacteria in the presence of antibiotics. Their observations call into question the prevailing theory of bacterial resistance, and they have proposed a new explanati

Smile: Gingivitis bacteria manipulate your immune system so they can thrive in your gums 2013-01-25

By Federation of American Societies for Experimental Biology

A new research report shows how the bacteria known for causing gum disease -- Porphyromonas gingivalis -- manipulates the body's immune system to disable normal processes that would otherwise destroy it.

Can diet beat depression? 2013-01-25

By BioMed Central Limited

Research into diet and depression should follow the model of studies into diet and cardiovascular risk. So argue experts in a recent opinion piece.

Space travel may be harmful to the brain, study suggests; Prolonged cosmic radiation exposure could hasten Alzheimer's 2013-01-25

By University of Rochester Medical Center

As if space travel was not already filled with enough dangers, a new study shows that cosmic radiation -- which would bombard astronauts on deep space missions to places like Mars -- could accelerate the onset of Alzheimer's disease.

The factor that could determine future breast cancer treatment 2013-01-25

By Garvan Institute of Medical Research

Australian scientists have shown how a 'transcription factor' causes breast cancer to develop an aggressive subtype that lacks sensitivity to oestrogen and does not respond to anti-oestrogen therapies such as Tamoxifen and aromatase inhibitors. Transcript

Benefits of higher oxygen, breathing device persist after infancy 2013-01-25

By NIH/National Institute of Child Health and Human Development

By the time they reached toddlerhood, very preterm infants originally treated with higher oxygen levels continued to show benefits when compared to a group treated with lower oxygen levels, according to a follow-up study.

Second impact syndrome in a high school football player: Researchers use imaging findings to chronicle new details 2013-01-25

By American Association of Neurological Surgeons (AANS)

Image series and other data help researchers shed new light on the rare and devastating condition of second impact syndrome.

Disease burden links ecology to economic growth 2013-01-25

By Public Library of Science

A new study finds that vector-borne and parasitic diseases have substantial effects on economic development across the globe, and are major drivers of differences in income between tropical and temperate countries. The burden of these diseases is, in turn

The science of neurosurgical practice: Experts discuss importance of quality improvement, clinical research, patient care 2013-01-25

By American Association of Neurological Surgeons (AANS)

Neurosurgical practitioners discuss specialty's commitment to quality improvement and improving long-term patient health, as well as the need for more data collection and "real-time" information to develop databases of medical disorders and t

Study hints that stem cells prepare for maturity much earlier than anticipated 2013-01-25

By Stowers Institute for Medical Research

Unlike less versatile muscle or nerve cells, embryonic stem cells are by definition equipped to assume any cellular role. Scientists call this flexibility “pluripotency,” meaning that as an organism develops, stem cells must be ready a

Autopsy-based study examines prevalence of atherosclerosis among U.S. service members 2013-01-25

By American Medical Association (AMA)

Among deployed U.S. service members who died of combat or unintentional injuries between 2001-2011 and underwent autopsies, the prevalence of coronary atherosclerosis was 8.5 percent, with factors associated with a higher prevalence of the disease incl

Targeting taste receptors in the gut may help fight obesity 2013-01-25

By Cell Press

Despite more than 25 years of research on antiobesity drugs, few medications have shown long-term success. Now researchers say that targeting taste sensors in the gut may be a promising new strategy.

Staphylococcus aureus: Why it just gets up your nose 2013-01-25

By Public Library of Science

Researchers have identified a mechanism by which the bacterium Staphylococcus aureus colonizes our nasal passages. The study shows for the first time that a protein located on the bacterial surface called clumping factor B has high affinity for the skin p

Real-world patient survival with defibrillators matches trial expectations 2013-01-25

By Duke University Medical Center

Patients who received an implantable heart defibrillator in everyday practice had survival benefits on par with those who received the same devices in carefully controlled clinical trials, according to a new study that highlights the value of defibrillato

Affordable Care Act's impact on uncompensated care 2013-01-25

By Vanderbilt University Medical Center

The decision by several states not to expand Medicaid health insurance for the poor may create unintended cuts for hospitals that provide uncompensated care, according to a new study.

Sustained virological response linked with improved survival for HCV patients 2013-01-25

By American Medical Association (AMA)

Among patients with chronic hepatitis C virus infection and advanced hepatic fibrosis (development of excess fibrous connective tissue), sustained virological response (SVR) to interferon-based treatment was associated with a lower risk of all-cause morta

Trying to halt hepatitis C's molecular hijacking 2013-01-25

By University of Colorado Denver

Researchers have figured out intimate details of how the hepatitis C virus takes over an invaded cell, a breakthrough that could point to way for new treatments for the virus.

A new type of nerve cell found in the brain 2013-01-25

By Karolinska Institutet

An international team of scientists has identified a previously unknown group of nerve cells in the brain. The nerve cells regulate cardiovascular functions such as heart rhythm and blood pressure. It is hoped that the discovery will be significant in the

Best to be overweight, but not obese? Higher levels of obesity associated with increased risk of death 2013-01-25

By JAMA and Archives Journals

In an analysis of nearly 100 studies that included approximately 3 million adults, relative to normal weight, overall obesity (combining all grades) and higher levels of obesity were both associated with a significantly higher all-cause risk of death, whi

Chinese medicine yields secrets: Atomic mechanism of two-headed molecule derived from Chang Shan, a traditional chinese herb 2013-01-25

By The Scripps Research Institute

The mysterious inner workings of Chang Shan -- a Chinese herbal medicine used for thousands of years to treat fevers associated with malaria -- have been uncovered thanks to a high-resolution structure solved by scientists.

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