PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Proteins, like people, act differently when crowded together

2010-12-04
(Press-News.org) People in a jetliner act and feel one way when crammed together like sardines in a can. But they have quite a different mindset when the middle seat is empty and they have more personal space. Scientists are pursuing a remarkable parallel that exists among the proteins involved in health and disease inside living cells. The cover story in the current issue of Chemical & Engineering News (C&EN), ACS' weekly newsmagazine, focuses on how the study of proteins crowded together inside cells is opening new doors to the prevention, diagnosis, and treatment of disease.

C&EN Senior Editor Celia Henry Arnaud notes that much of the scientific knowledge about proteins comes from research done in watered-down solutions, as if they had much of an airplane or cell to themselves. But cells are packed with proteins, which fill about 30 percent of a cell's volume. In order to understand proteins' actual role, scientists must study proteins under these jam-packed conditions.

The article describes how scientists are forging ahead with research that mimics the real-world conditions under which proteins function in cells. One discovery, for example, indicates that under crowded conditions, a protein involved in Lyme disease changes shape in a way that reveals a potential new target for diagnosing and treating the disease.

INFORMATION: ARTICLE FOR IMMEDIATE RELEASE "Close Quarters"

This story is available at http://pubs.acs.org/cen/coverstory/88/8848cover.html


ELSE PRESS RELEASES FROM THIS DATE:

Doctors failing to prescribe low-dose menopausal hormone therapy, Stanford study finds

2010-12-04
STANFORD, Calif. — Doctors across the country are still prescribing higher-dose menopausal hormone therapy pills, despite clinical evidence that low doses and skin patches work just as well and carry fewer health risks. That's what researchers at the Stanford University School of Medicine found in a study that will be published online Dec. 2 in Menopause: The Journal of the North American Menopause Society. Doctors have been treating the symptoms of menopause with hormone therapy for decades. During menopause, the ovaries decrease their estrogen production, and women ...

Study predicts distribution of gravitational wave sources

2010-12-04
SANTA CRUZ, CA--A pair of neutron stars spiraling toward each other until they merge in a violent explosion should produce detectable gravitational waves. A new study led by an undergraduate at the University of California, Santa Cruz, predicts for the first time where such mergers are likely to occur in the local galactic neighborhood. According to Enrico Ramirez-Ruiz, associate professor of astronomy and astrophysics at UC Santa Cruz, the results provide valuable information for researchers at gravitational-wave detectors, such as the Laser Interferometry Gravitational-Wave ...

Strange discovery: Bacteria built with arsenic

Strange discovery: Bacteria built with arsenic
2010-12-04
Menlo Park, Calif. — In a study that could rewrite biology textbooks, scientists have found the first known living organism that incorporates arsenic into the working parts of its cells. What's more, the arsenic replaces phosphorus, an element long thought essential for life. The results, based on experiments at the Stanford Synchrotron Radiation Lightsource, were published online today in Science Express. "It seems that this particular strain of bacteria has actually evolved in a way that it can use arsenic instead of phosphorus to grow and produce life," said SSRL Staff ...

The future of metabolic engineering -- designer molecules, cells and microorganisms

The future of metabolic engineering -- designer molecules, cells and microorganisms
2010-12-04
Will we one day design and create molecules, cells and microorganisms that produce specific chemical products from simple, readily-available, inexpensive starting materials? Will the synthetic organic chemistry now used to produce pharmaceutical drugs, plastics and a host of other products eventually be surpassed by metabolic engineering as the mainstay of our chemical industries? Yes, according to Jay Keasling, chemical engineer and one of the world's foremost practitioners of metabolic engineering. In a paper published in the journal Science titled "Manufacturing molecules ...

Broad coalition gathers to open the door for agriculture in international climate change negotiations

2010-12-04
CANCUN/MEXICO, 2 December 2010—Not content to see farming remain outside the international climate change negotiations under way in Mexico, a broad coalition of 17 organizations will bring together more than 400 policy makers, farmers, scientists, business leaders and development specialists on Saturday, December 4 to define steps for opening the door to agriculture within the next six months, permitting its full inclusion in both national action plans as well as the global climate agenda. "Agriculture is a global crossroads where the issues of climate change, food security ...

'Less is more,' when it comes to sugary, high-caffeine energy drinks, researchers say

2010-12-04
WASHINGTON – Moderate consumption of so-called energy drinks can improve people's response time on a lab test measuring behavioral control, but those benefits disappear as people drink more of the beverage, according to a study published by the American Psychological Association. With the growing popularity of energy drinks such as Red Bull, Monster, Burn and RockStar, especially among high school and college students, psychologists have been studying the effects of sugary, highly caffeinated drinks on young people. College students in particular have been using these ...

Personalized diets for elderly after hospitalization decreases mortality rates

2010-12-04
BEER-SHEVA, ISRAEL, December 2, 2010 -- Intense, individually tailored dietary treatment for acutely hospitalized elderly has a significant impact on mortality, according to a new study by researchers at Ben-Gurion University of the Negev. The intervention study just published in the prestigious Journal of the American Geriatric Society showed higher death rates six months after discharge (11.6 percent) of the control group compared to the intervention group's death rate of 3.8 percent, which received intensive nutritional treatment designed and implemented by a registered ...

Light touch brightens nanotubes

2010-12-04
Rice University researchers have discovered a simple way to make carbon nanotubes shine brighter. The Rice lab of researcher Bruce Weisman, a pioneer in nanotube spectroscopy, found that adding tiny amounts of ozone to batches of single-walled carbon nanotubes and exposing them to light decorates all the nanotubes with oxygen atoms and systematically changes their near-infrared fluorescence. Chemical reactions on nanotube surfaces generally kill their limited natural fluorescence, Weisman said. But the new process actually enhances the intensity and shifts the wavelength. ...

From toxicity to life: Arsenic proves to be a building block

2010-12-04
LIVERMORE, Calif. - Arsenic - an element that triggers death for most Earthly life forms - is actually allowing for a bacterium to thrive and reproduce. In a study that may prompt the rewriting of textbooks, a team of astrobiologists and chemists has found the first known living organism that can use arsenic in place of phosphorus in its major macromolecules. The new findings, published in the Dec. 2 Science Express, could redefine origins of life research and alter the way we describe life as we know it. Oxygen, carbon, hydrogen, nitrogen, sulfur and phosphorous ...

Discovery by UC Riverside entomologists could shrink dengue-spreading mosquito population

Discovery by UC Riverside entomologists could shrink dengue-spreading mosquito population
2010-12-04
RIVERSIDE, Calif. – Each year, dengue fever infects as many as 100 million people while yellow fever is responsible for about 30,000 deaths worldwide. Both diseases are spread by infected female Aedes aegypti mosquitoes, which require vertebrate blood to produce eggs. The blood feeding and the egg development are tightly linked to how the mosquito transmits the disease-causing virus. Now a team of entomologists at the University of California, Riverside has identified a microRNA (a short ribonucleic acid molecule) in female Aedes aegypti mosquitoes that when deactivated ...

LAST 30 PRESS RELEASES:

Potential new treatment for sepsis

Study reveals how many hours of video games per week might be too many

Electrospinning for mimicking bioelectric microenvironment in tissue regeneration

Home fingertip oxygen monitors less accurate for people with darker skin tones

Six weeks in a cast no less effective than surgery for unstable ankle fractures

Precautionary approach to alcohol-free and low alcohol drinks needed to protect public health, say experts

Gas-atomized Ca–Mg alloy powders produce hydrogen simply by adding water — high-efficiency hydrogen generation at room temperature

British redcoat’s lost memoir reveals harsh realities of life as a disabled veteran

World-leading rare earth magnet recycling facility launches in UK

Corday Selden selected for the Oceanography Society Early Career Award

MIT chemists determine the structure of the fuzzy coat that surrounds Tau proteins

Same moves, different terrain: How bacteria navigate complex environments without changing their playbook

Severe weather is deadly for vulnerable older adults long after the storm ends, study finds

Expert panel highlights opportunities for improving cancer studies

Hearing aid prescriptions not associated with changes in memory and thinking

Seth Zippel selected for The Oceanography Society Early Career Award

Jeremy Horowitz selected for The Oceanography Society Early Career Award

Kennesaw State University’s Jerry Mack named Paul “Bear” Bryant Newcomer Coach of the Year

Ancient teeth are treasure troves of data on Iron Age lifestyles

Avocados may become easier to grow in India—but not if global emissions remain high

Pregnant women with IBD show heightened inflammation in vaginal mucosa

Underwater photos show seabirds, seals and fish interacting with a tidal turbine in Washington State

1 in 5 surveyed UK adults who have experienced the death of a pet report it as more distressing than experienced human deaths, with significant rates of prolonged grief disorder symptoms also being re

Polyester microfibers in soil negatively impact the development of cherry tomato plants in experiments, raising concerns over the potential effect of high levels of such contaminants

LGBTQ+ adults may be around twice as likely to be unemployed or to report workforce non-participation compared to heterosexual adults, per large representative Australian survey

Horses can smell fear: In experiments where horses smelled sweat from scared humans, they reacted to scary and sudden events with increased fear and reduced human interaction

New synaptic formation in adolescence challenges conventional views of brain development

Scientists identify target to treat devastating brain disease

Oliver Zielinski selected as Fellow of The Oceanography Society

Has progress stalled on gender equality at work?

[Press-News.org] Proteins, like people, act differently when crowded together