Body

How do we fight the war against cyber terrorism?

The Internet has no borders, no universal legislation, and although highly social and distributed is not represented by cooperation across the globe. Given those characteristics how might nations make their plans for counter terrorism in cyberspace as active online as they are in the everyday world? A collaboration between researchers in the US and Iran hoped to address that issue and its findings are published this month in the International Journal of Internet Technology and Secured Transactions.

New technique tracks viral infections, aids development of antiviral drugs

WASHINGTON -- Scientists at the Naval Research Laboratory Center for Bio-Molecular Science and Engineering have developed a method to detect the presence of viruses in cells and to study their growth. Targeting a virus that has ribonucleic acid (RNA) as its genetic makeup, the new technique referred to as locked nucleic acid (LNA) flow cytometry-fluorescence in situ hybridization (flow-FISH), involves the binding of an LNA probe to viral RNA.

Tufts biologists find another clue to the origins of degenerative diseases

MEDFORD/SOMERVILLE, Mass. -- For years, researchers in genome stability have observed that several neurodegenerative diseases—including Huntington's disease—are associated with cell-killing proteins that are created during expansion of a CAG/CTG trinucleotide repeat.

What sea squirts can teach us about the heart

Each year in the U.S., approximately 40,000 babies are born with a heart defect. Without the proper diagnosis and treatment, many of these babies would die before their first birthday, according to Dr. Scott Klewer, a cardiologist at the UA's College of Medicine.

"We still don't know much about the causes of many of these defects. Some have been linked to certain genes but the picture is still sketchy," he says. "At this point, we can't predict how children will respond to current methods, but if we had genetic indicators we could use them to personalize treatments."

Positioning enzymes with ease

Virtually all processes in the human body rely on a unique class of proteins known as enzymes. To study them, scientists want to attach these molecules to surfaces and hold them fast, but this can often be a tricky undertaking.

Now Jinglin Fu and his colleagues at the Biodesign Institute at Arizona State University have developed a superior method for immobilizing enzymes on surfaces, deftly controlling their orientation, improving their efficiency and rendering them more stable. The group's results appear in today's advanced online issue of PLoS ONE.

Pistachios deliver weight management support, heart health benefits

Washington, D.C., April 11, 2011 – In a first-of-its-kind study with nuts, randomized controlled-feeding research conducted by the Agricultural Research Service (ARS) of the United States Department of Agriculture (USDA) found that fat in pistachios may not be completely absorbed by the body. The findings indicate that pistachios may actually contain fewer calories per serving than originally thought – further validating pistachios as one of the lowest calorie nuts with 160 calories per 30 gram serving (approximately 1 ounce).

Clinical study suggests estrogen levels and breast health can be altered

WASHINGTON, D.C… April 11, 2011 … Researchers from Canada and the United States today told attendees of the Experimental Biology 2011 Scientific Meeting that they have uncovered a possible means of enabling women to favorably influence whether the estrogens in their bodies take a "beneficial path" or a "disease-potential" path.

Immunization not linked to increased hospitalization for children with inherited disorder

Children with inborn errors of metabolism received vaccines on the same immunization schedule as did healthy infants, according to Kaiser Permanente Vaccine Study Center scientists who examined the Kaiser Permanente Northern California population. In addition, immunization was not associated with significant increases in emergency room visits or hospitalizations during the month following vaccination, according to Nicola Klein, MD, PhD, lead author of the study and co-director of the Kaiser Permanente Vaccine Study Center.

Increased life expectancy discourages religious participation

Churches will continue to attract older congregations as increasing life expectancy encourages people to put off involvement in religion, according to new research.

The study, by Dr Elissaios Papyrakis at the University of East Anglia and Dr Geethanjali Selvaretnam from the University of St Andrews in the UK, suggests that religious organisations need to do more to highlight the social and spiritual benefits of participation in religion in present day life if they are to increase congregation sizes and attract people of all ages, particularly young people.

Drinking during pregnancy increases risk of premature birth

Drinking alcohol during pregnancy is associated with an increased risk of miscarriage, premature birth, and low birth weight. But there are conflicting reports about how much alcohol, if any, it is safe for a pregnant woman to drink. New research published in Biomed Central's open access journal BMC Pregnancy and Childbirth looked at the amounts of alcohol women drank during their early pregnancy and showed the effect this had on their babies.

Dr. Larissa Shimoda to discuss mechanisms of hypoxic pulmonary hypertension

WASHINGTON, DC – When muscles and organs are deprived of an adequate supply of oxygen--a condition called hypoxia--the body's usual responses include increased circulation and a slight drop in blood pressure in the blood vessels serving the affected tissue. However, the blood vessels in the lungs react differently: blood pressure in the lungs rises, often with deleterious effects on the lungs' tissue and the heart. Larissa A.

Green tea and tai chi enhance bone health and reduce inflammation in postmenopausal women

C.S. Lewis, the famous author and Oxford academic, once proclaimed "You can't get a cup of tea big enough or a book long enough to suit me." We sip it with toast in the morning, enjoy it with sweets and biscuits in the afternoon, and relax with it at the end of the day. Tea has for generations been an integral infusion worldwide, carrying both epicurean and economic significance. But, does it impart honest-to-goodness health benefits? In other words, is its persistence in the human diet perhaps coincident with enhanced quality (or quantity) of life?

The health halo effect: Don't judge a food by its organic label

Jenny Wan-chen Lee, a graduate student in Cornell University's Dyson School of Applied Economics and Management, has been fascinated with a phenomenon known as "the halo effect" for some time. Psychologists have long recognized that how we perceive a particular trait of a person can be influenced by how we perceive other traits of the same individual. In other words, the fact that a person has a positive attribute can radiate a "halo", resulting in the perception that other characteristics associated with that person are also positive.

Accelerated lab evolution of biomolecules could yield new generation of medicines

CAMBRIDGE, Mass. -- Scientists at Harvard University have harnessed the prowess of fast-replicating bacterial viruses, also known as phages, to accelerate the evolution of biomolecules in the laboratory. The work, reported this week in the journal Nature, could ultimately allow the tailoring of custom pharmaceuticals and research tools from lab-grown proteins, nucleic acids, and other such compounds.

Scripps Research scientists uncover new DNA role in modifying gene function

JUPITER, FL, April 10, 2010 – For years, scientists have thought of DNA as a passive blueprint capable only of producing specific proteins through RNA transcription. Now, research led by scientists from the Florida campus of The Scripps Research Institute has shown DNA can also act to fine-tune the activity of certain proteins known as nuclear receptors.

These new findings may make it possible to design therapies that could activate specific genes in a highly targeted manner in a number of important diseases including osteoporosis, obesity, autoimmune disease, and cancer.