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:

Low-glutamate diet linked to brain changes and migraine relief in veterans with Gulf War Illness

AMP 2025 press materials available

New genetic test targets elusive cause of rare movement disorder

A fast and high-precision satellite-ground synchronization technology in satellite beam hopping communication

What can polymers teach us about curing Alzheimer's disease?

Lead-free alternative discovered for essential electronics component

BioCompNet: a deep learning workflow enabling automated body composition analysis toward precision management of cardiometabolic disorders

Skin cancer cluster found in 15 Pennsylvania counties with or near farmland

For platforms using gig workers, bonuses can be a double-edged sword

Chang'e-6 samples reveal first evidence of impact-formed hematite and maghemite on the Moon

New study reveals key role of inflammasome in male-biased periodontitis

MD Anderson publicly launches $2.5 billion philanthropic campaign, Only Possible Here, The Campaign to End Cancer

Donors enable record pool of TPDA Awards to Neuroscience 2025

Society for Neuroscience announces Gold Sponsors of Neuroscience 2025

The world’s oldest RNA extracted from woolly mammoth

Research alert: When life imitates art: Google searches for anxiety drug spike during run of The White Lotus TV show

Reading a quantum clock costs more energy than running it, study finds

Early MMR vaccine adoption during the 2025 Texas measles outbreak

Traces of bacteria inside brain tumors may affect tumor behavior

Hypertension affects the brain much earlier than expected

Nonlinear association between systemic immune-inflammation index and in-hospital mortality in critically ill patients with chronic obstructive pulmonary disease and atrial fibrillation: a cross-sectio

Drift logs destroying intertidal ecosystems

New test could speed detection of three serious regional fungal infections

New research on AI as a diagnostic tool to be featured at AMP 2025

New test could allow for more accurate Lyme disease diagnosis

New genetic tool reveals chromosome changes linked to pregnancy loss

New research in blood cancer diagnostics to be featured at AMP 2025

Analysis reveals that imaging is overused in diagnosing and managing the facial paralysis disorder Bell’s palsy

Research progress on leptin in metabolic dysfunction-associated fatty liver disease

Fondazione Telethon announces CHMP positive opinion for Waskyra™, a gene therapy for the treatment of Wiskott-Aldrich syndrome (WAS)

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