Tag: "early" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...w, we have evidence that these patterns may be set early on, perhaps even before birth, said lead author Th... depressed or anxious they were at multiple points early on in, late in, and after their pregnancy. Later on, the women were then asked to report on their ch...

Genomic Analysis Uncovers New Targets for HIV Vaccine

...ractive as a vaccine target. The study, published early online by the journal Science July 19, was directed by David Goldstein,Ph.D., at Duke University and is the first large cooperative study with major findings arising from the Center for HIV/AIDS Vaccine Immunology, (CHAVI) a seven-year project funded...

Research identifies protein that signals flowering in squash plants

... are long), and typically flower in late spring or early summer. SD crops include rice and maize, and LD crops include wheat, barley, oats and peas. Day-neutral plants will flower under either long or short days. In addition to its fundamental importance in basic plant biology, understanding and manipulati...

Agent slows aging in mice

...ty of Michigan scientist Richard A. Miller reports early results from a mouse study his lab and two others ... finding,” Miller says. No one excited by these early results in mice is advised to bulk up on creosote bush leaves as a way to defy old age. If NDGA push...

Blood test may help signal tumor's remission, return in throat cancer patients

... doctors to detect the recurrence of throat cancer early on, when there is still time to pursue a second line of treatment, such as surgery or drug therapy. “Cancers of the head and neck are insidious because surgical removal of the tumor can severely impair a person’s ability to talk and to swallow,” sai...

Researchers track how spores break out of dormant state

...aboratory scientists, appears in the May 28-June 1 early online edition of the Proceedings of the National Academy of Sciences. The research appears in this week’s (June 4) issue of PNAS. “A thorough understanding of spore germination is important for the development of new countermeasures that identify...

Modeling the restless brain

...he Proceedings of the National Academy of Sciences early edition online. The article, which will be available at http://www.pnas.org/cgi/doi/10.1073/pnas.0701519104 , includes a link to a movie that visualizes what spontaneous fluctuations in the monkey's brain would look like. Coauthors of the articl...

Crammed with charged DNA, pressure rises inside virus

...team that published the discovery this week in the early on-line edition of Proceedings of the National Academy of Sciences. “First, the DNA must be forced to bend. Second, the electrostatic repulsion of the DNA’s negatively charged backbone must be overcome. We found that the positively charged ions in ...

Snoring in children might be an allergic type disease

...atory diseases and snoring. “Snoring can be an early manifestation of more serious sleep-disordered breathing, so it’s not necessarily a harmless condition,” Dr Marshall added. “In adults habitual snoring is seen as being caused by anatomical problems in the airway or obesity. But in children it seems ...

Envisat captures first image of Sargassum from space

...gasso Sea after the Sargassum encountered there by early explorers. Our observations of Sargassum lines extending over large areas of the Gulf show that in this area and season it represents a significant fraction of marine primary productivity." Marine primary production is the process by which floati...

Loss of stem cells correlates with premature aging in animal study

...of Cell Stem Cell. “The reason we’re seeing the early signs of aging in these mice is that we’re exhausting their ability to renew tissues,” says Eric J. Brown, PhD, Assistant Professor of Cancer Biology. “We believe these findings may be helpful to the aging and oncology fields since premature aging sy...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...emy of Sciences and posted in the journal's online early edition this week. Similarly, the scientists found that the Central American relatives of these Caribbean amphibians also arose from a single species that arrived by raft from South America. "This discovery is surprising because no previous theor...

New bacterium discovered -- related to cause of trench fever

...ver, cat scratch disease had been described in the early 1900s, but no one knew what bacterium caused cat scratch disease until the infection was seen in the AIDS patients. This identification was published in “The New England Journal of Medicine” in 1997. Koehler’s research group found that all pet ca...

Ancient DNA traces the woolly mammoth's disappearance

...ed their fullest extent. The findings also offered early human hunters a potential alibi; they didn’t come on the scene in large numbers until even later. In search of a general pattern in the new study, Barnes and Lister’s team looked to the extinct woolly mammoth. What they found, however, was an “int...

Salty oceans provide early warning for climate change

... the saltiness of the ocean water could provide an early indicator of climate change. Significant increases...d New Zealand could be useful. “It could act as an early warning system for climate changes 10-20 years down the road,” he says....

Sun exposure early in life linked to specific skin cancer gene mutation

...e and Public Health. Their research indicates that early life sun exposure, from birth to 20 years old, may...revention, presents some of the first data to link early life sunlight exposure to a specific mutation in melanomas. Researchers interviewed 214 melanoma ...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...significant increase in Northern Ireland since the early 1990s and are more likely to affect men, older people and those living in more affluent areas, according to a study just published in the June issue of British Journal of Dermatology. Researchers who looked at official cancer statistics for nearly 2...

Migration alert -- How tumor cells home in on the lymphatic system

...tumor cells migrate to the lymphatic system in the early stages of tumor metastasis. This new understanding holds significant potential for developing anti-metastasis therapies. Scientists know that tumor cells spread via the lymphatic system, but they don’t understand the details of how this deadly migr...

Researchers examine carbon capture and storage to combat global warming

...nment groups and industry partners-is still in its early stages, the researchers said. Of all the projects, only one is turning a profit without recovering oil. Sleipner, an industrial-scale project run by Norwegian oil company Statoil, injects carbon dioxide into a deep saline aquifer beneath the North...

Physicist cracks women's random but always lucky choice of X chromosome

...ales have two X chromosomes. This means that in an early stage in the development of a woman’s fertilised egg the cells need to silence one of those two X chromosomes. This process is crucial to survival and problems with the process are related to serious genetic diseases. Both X chromosomes in a cell ...

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