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Science News Archive July 2012 - Page 21


Page 21 of 26

What happens when we sunburn

A new study reveals how sunburn occurs when UV radiation damages RNA in skin cells, triggering an inflammatory response that can lead to healing and potentially even cancer. The discovery may lead to the development of treatments that block this process without exposing patients to harmful UV light.

SourceUniversity of California - San Diego·JournalNature Medicine·DateJul 8, 2012

Belching black hole proves a biggie

Astronomers have confirmed the first known 'middleweight' black hole, HLX-1, using observations with CSIRO's Australia Telescope Compact Array. The black hole is estimated to be around 20,000 to 90,000 times the mass of the Sun and lies in a galaxy called ESO 243-49.

SourceCSIRO Australia·JournalScience·DateJul 8, 2012

Recovery from pediatric brain injury a lifelong process, experts say

Children's recovery from pediatric brain injury extends beyond medical care to involve the entire circle of family, friends, and healthcare providers. Recent research highlights the importance of 'family-centered' approaches and innovative interventions to promote self-worth, education as rehabilitation, and community reintegration.

SourceIOS Press·JournalNeuroRehabilitation An International Interdisciplinary Journal·DateJul 8, 2012

Overweight? There's a vaccine for that

Researchers developed two somatostatin vaccinations that reduce body weight and increase energy expenditure in diet-induced obese male mice. The vaccines induce antibodies to somatostatin, effectively removing inhibition on growth hormone and insulin-like growth factor-1.

SourceBMC (BioMed Central)·JournalJournal of Animal Science and Biotechnology·DateJul 8, 2012

Urinary tract infections steal from hosts' defense arsenals

Researchers discovered that E. coli uses yersiniabactin to steal copper from host cells, allowing the bacteria to grow and reproduce. This finding could lead to new treatments for serious urinary tract infections. By blocking this thievery with a drug, patients' chances of fighting off infections may significantly improve.

SourceWashU Medicine·JournalNature Chemical Biology·DateJul 8, 2012

Microscope probe-sharpening technique improves resolution, durability

A new microscope probe-sharpening technique has been developed to improve imaging resolution and durability for researchers studying tiny structures. The technique, described in Nature Communications, uses a matching voltage to deflect ions and sharpens the probe around the tip, preserving the point and increasing stability.

Concordia welcomes 4 new Vanier scholars

Four Concordia PhD candidates have secured Vanier Canada Graduate Scholarships to conduct groundbreaking research in various fields. Brigitte Desharnais will investigate metabolizing enzymes in the liver to determine drug-related deaths, while Matthew Keough will study stress and alcohol use in young adults.

BWH researchers discover new vaccine candidate for Pseudomonas aeruginosa

Researchers at Brigham and Women's Hospital have discovered a new vaccine candidate for Pseudomonas aeruginosa, a bacterium that causes severe lung infections in patients with cystic fibrosis. The vaccine is based on a new mechanism of immunity mediated by T helper 17 (Th17) cells and has been shown to protect mice from lethal pneumonia.

SourceBrigham and Women's Hospital·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJul 6, 2012

Stop and go

A new protein called Lem4 has been discovered to direct a crucial step in cell division by preventing the addition of phosphate tags to BAF while promoting their removal. This process is essential for cellular growth and division, and its regulation may be key to understanding various cellular processes.

Keeping the flu away

EP67, a powerful synthetic protein, is able to activate the innate immune system within two hours of administration, preventing flu symptoms. The study found that EP67 functions similarly across different flu strains, offering a promising alternative to traditional vaccines.

SourceSan Diego State University·JournalPLOS ONE·DateJul 6, 2012

Prevention is better than cure for killer cardiovascular disease

The new 2012 Joint European Societies' Guidelines on cardiovascular disease prevention in clinical practice focus on lifestyle changes, public health initiatives, and individual preventive measures to address the growing burden of CVD. Experts stress the need for a co-ordinated society-wide effort to reduce mortality.

SourceSAGE·JournalEuropean Journal of Preventive Cardiology·DateJul 6, 2012

Aqueous iron interacts as strong as solid iron

Researchers developed a new method called inverse Partial Fluorescence Yield (iPFY) that allows them to examine the structure of metal ions-complexes in solution without sample damage. The study found that iron ions interact strongly with water, contradicting previous thoughts.

SourceHelmholtz Association·JournalThe Journal of Physical Chemistry Letters·DateJul 6, 2012

Heat, rainfall affect pathogenic mosquito abundance in catch basins

Researchers from the University of Illinois discovered that low rainfall and high temperatures increase the numbers of larvae in storm water catch basins. The study, published in Journal of Medical Entomology, highlights the importance of monitoring mosquito populations in these areas to track West Nile Virus disease cases.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Medical Entomology·DateJul 6, 2012

UCLA researcher discovers epigenetic links in cell-fate decisions of adult stem cells

Researchers found two key epigenetic regulating genes that govern cell-fate determination of human bone marrow stem cells. The discovery may allow stem cells to differentiate specifically into bone cells while inhibiting fat cell differentiation, paving the way for therapies in regenerative medicine and osteoporosis treatment.

SourceUniversity of California - Los Angeles·JournalCell Stem Cell·DateJul 6, 2012

UC Davis study finds that above-normal weight alone does not increase the short-term risk of death

A new UC Davis study found that being overweight or obese alone is not linked to an increased risk of death in the short-term. However, severely obese individuals with diabetes or hypertension do face a higher risk of mortality, emphasizing the importance of weight loss and managing co-occurring health conditions.

SourceUniversity of California - Davis Health·JournalThe Journal of the American Board of Family Medicine·DateJul 6, 2012

Diabetes drug makes brain cells grow

A diabetes drug called metformin has been found to promote the growth of new brain cells and enhance spatial memory formation. The study's lead author suggests that the widely used medication may also offer cognitive benefits for people with Alzheimer's disease, independent of its effects on blood sugar control.

SourceCell Press·JournalCell Stem Cell·DateJul 5, 2012