News Articles

Tests on a ‘virtual physiological human’ (VPH) have simulated how well an HIV drug blocks a key protein in the lethal virus, say scientists in the UK. The method could pave the way to personalized drug treatments, such as for HIV patients developing resistance to their current regimes.
The human body is too complex to replicate using a single computer or even several computers strapped together. To fully simulate our inner workings, the VPH has to link networks of computers nation- and worldwide. With all this power assembled, scientists can then carry out studies of "supercomputing" proportions, such as the effects of a drug at the organ, tissue, cell and even molecular levels.

A team of Penn State University researchers is the first to demonstrate that lipid molecules in cell membranes participate in mammals' reactions to allergens in a living cell. The finding will help scientists better understand how allergy symptoms are triggered, and could contribute to the creation of improved drugs to treat them.
The team studied clusters of cholesterol-rich lipid molecules that they believe serve as platforms for the receptors that receive antibodies, the proteins that protect the body from allergens. In this case, the team examined IgE antibodies, which upon binding to their receptors initiate a cell's release of histamine--the substance that causes the unpleasant, but beneficial, mucous production, congestion, and itchiness associated with allergies.

A new interactive website – www.darwin.rcuk.ac.uk - has been launched today that people the chance to learn about Darwin’s theories of evolution and what they mean today. It shows how his ideas are influencing our broader culture as well as science, engineering, and social science and invites people to join in discussions with researchers.
The website will:
•Survey what interests or puzzles people about evolution, which will help inform the development of our engagement activities
•Showcase the contemporary application of evolutionary theory
•Provide a forum for discussing questions about evolution
Next year will see nationwide celebrations to mark the 200th anniversary of Charles Darwin’s birth and the 150th anniversary of the publication of his groundbreaking book On the Origin of Species (and we'll be hosting our own series of articles, events and retrospectives at DarwinDay2009.com - editors).

Cannabis, the genus of flowering plants commonly known as marijuana, may create medicines that can help cure nicotine addiction, say University of Nottingham pharmacologists who have been studying the cannabis-like compounds which exist naturally in our bodies (endocannabinoids), and are exploring their potential for medical treatment. This includes treating conditions as diverse as obesity, diabetes, depression and addiction to substances like nicotine.
Scientists have known about endocannabinoids since the mid-1990s. This led to an explosion in the number of researchers looking into the future medical uses of cannabinoids and cannabis compounds.
Dr Steve Alexander, Associate Professor in the School of Biomedical Sciences, focused on a number of these projects in editing the first themed podcast for the British Journal of Pharmacology.

Only 45 percent of baseball players were able to return to the game at the same or higher level after shoulder or elbow surgery, according to new research released today during the 2008 American Orthopaedic Society for Sports Medicine Specialty Day at The Moscone Center.

There's no dispute that natural variations of atmospheric air flow patterns have played an important role in climate change in the last decades.
Basic knowledge of how and why it happens is necessary to improve climate models that still hold much uncertainty. Researchers investigating a fundamental climate process in the Arctic state that interactions between the stratospheric ozone chemistry and atmospheric air flow lead to significant changes of airflow patterns from the ground up to the stratosphere.
Atmospheric airflows follow preferred patterns. The most important pattern for the northern hemisphere is the Arctic Oscillation.

A group of researchers has developed a novel way to view the world through the eyes of a common fly and partially decode the insect’s reactions to changes in the world around it.
The research fundamentally alters earlier beliefs about how neural networks function and could provide the basis for intelligent computers that mimic biological processes.
The researchers used tiny electrodes to tap into motion-sensitive neurons in the visual system of a common blowfly. Neurons are nerve cells that emit tiny electric spikes when stimulated. The electrodes detected pulses from the motion-sensitive neurons in the fly.

This week, NASA's Wilkinson Microwave Anisotropy Probe (WMAP) showed off three key findings contained in five years of data:
(1)New evidence that a sea of cosmic neutrinos permeates the universe
(2) Clear evidence the first stars took more than a half-billion years to create a cosmic fog
(3)Tight new constraints on the burst of expansion in the universe's first trillionth of a second
"We are living in an extraordinary time," said Gary Hinshaw of NASA's Goddard Space Flight Center in Greenbelt, Md. "Ours is the first generation in human history to make such detailed and far-reaching measurements of our universe."

WMAP measures the composition of the universe.

Omega-3 fatty acids are unsaturated fats found in some fish such as salmon and herring and in smaller amounts in eggs and chicken.
New research from the Child & Family Research Institute shows the typical North American diet of eating lots of meat and not much fish is deficient in omega-3 fatty acids and this may pose a risk to infant neurological development.
This discovery is an important step towards developing dietary fat guidelines for pregnant and breastfeeding women. Current dietary recommendations evolved from the 1950’s emphasis on reducing saturated fat intake to lower the risk of cardiovascular disease.

U.S. Forest Service scientists believe an Oregon State University graduate student working on a cooperative project with the agency’s Pacific Southwest Research station on the Tahoe National Forest has photographed a wolverine, an animal whose presence has not been confirmed in California since the 1920s.
Katie Moriarty, a wildlife biology student, was conducting research on another carnivore called the American marten when a remote-controlled camera she set photographed the animal on February 28, 2008. Forest Service scientists who are experts at detecting rare carnivores believe the photographed animal is a wolverine.
The North American wolverine is the largest member of the weasel family. Adult males weigh 26 to 40 pounds, while females are 17 to 26 pounds.

In the latest issue of Nature Biotechnology, EuroStemCell scientist Elena Cattaneo from University of Milano along with Mauro Toselli from University of Pavia, Elisabetta Cerbai from the University of Florence and Ferdinando Rossi of University of Torino have challenged findings published in the same journal last year that amniotic fluid-derived stem cells can produce cells of the nervous system.
Amniotic fluid is the liquid that surrounds the fetus during pregnancy.

Scientists in Japan have discovered a new species of bacteria, Microbacterium hatanonis, that can live in hairspray, according to the results of a study published in the March issue of the International Journal of Systematic and Evolutionary Microbiology.
“Contamination of cosmetic products is rare but some products may be unable to suppress the growth of certain bacteria,” says Dr Bakir from the Japan Collection of Microorganisms, Saitama, Japan. “We discovered a new species of bacteria called Microbacterium hatanonis, which we found contaminates hairspray.