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Comprehensive look at rare leukemia finds relatively few genetic changes launch disease

The most comprehensive analysis yet of the genome of childhood acute myeloid leukemia (AML) found only a few mistakes in the genetic blueprint, suggesting the cancer arises from just a handful of missteps, according to new findings from St. Jude Children's Research Hospital. The research appears i...

Scientists track chemical changes in cells as they endure extreme conditions

One of nature's most gripping feats of survival is now better understood. For the first time, scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory observed the chemical changes in individual cells that enable them to survive conditions that should kill them. The...

Bisphenol A exposure in pregnant mice permanently changes DNA of offspring

Exposure during pregnancy to the chemical bisphenol A, or BPA, found in many common plastic household items, is known to cause a fertility defect in the mother's offspring in animal studies, and now researchers have found how the defect occurs. The results of the new study will be presented Saturd...

The Prestige oil spill caused changes in the cell structure of mussels

This release is available in Spanish . The oil spill from the Prestige petroleum oil tanker in 2002 caused serious damage to the ecosystems in the Bay of Biscay. A PhD thesis at the University of the Basque Country (UPV/EHU) has studied the consequences of this spill for the mussels inh...

Scientists use lasers to measure changes to tropical forests

HILO, Hawaii January 23, 2009New technology deployed on airplanes is helping scientists quantify landscape-scale changes occurring to Big Island tropical forests from non-native plants and other environmental factors that affect carbon sequestration. U.S. Forest Service and Carnegie Institution ...

Slight changes in climate may trigger abrupt ecosystem responses

Some of these responses, including insect outbreaks, wildfire, and forest dieback, may adversely affect people as well as ecosystems and their plants and animals. The U.S. Geological Survey led a new assessment of the implications of a warming world on "ecological thresholds" in North America....

Novel technique changes lymph node biopsy, reduces radiation exposure

Information obtained from a new application of photoacoustic tomography (PAT) is worth its weight in gold to breast cancer patients. For the first time, Lihong Wang, Ph.D., Gene K. Beare Distinguished Professor in the Department of Biomedical Engineering, with a joint appointment in Radiology...

Novel technique changes lymph node biopsy, reduces radiaiton exposure

Information obtained from a new application of photoacoustic tomography (PAT) is worth its weight in gold to breast cancer patients. For the first time, Lihong Wang, Ph.D., Gene K. Beare Distinguished Professor in the Department of Biomedical Engineering, with a joint appointment in Radiology...

Small changes can lead to big rewards, says ASN president

Small changes can lead to big rewards, such as maintaining a healthy weight, American Society for Nutrition (ASN) President James O. Hill, PhD, describes in a recent report. The article, to be published in the February issue of The American Journal of Clinical Nutrition , is written by Hill on be...

Study links ecosystem changes in temperate lakes to climate warming

Unparalleled warming over the last few decades has triggered widespread ecosystem changes in many temperate North American and Western European lakes, say researchers at Queen's University and the Ontario Ministry of the Environment. The team reports that striking changes are now occurring in m...

Shape changes in aroma-producing molecules determine the fragrances we detect

NEW YORK, December 22, 2008 - Shakespeare wrote "a rose by any other name would smell as sweet." But would it if the molecules that generate its fragrance were to change their shape? That's what Dr. Kevin Ryan, Assistant Professor of Chemistry at The City College of New York (CCNY) and collabor...

Study links ecosystem changes in temperate lakes to climate warming

Unparalleled warming over the last few decades has triggered widespread ecosystem changes in many temperate North American and Western European lakes, say researchers at Queen's University and the Ontario Ministry of the Environment. The team reports that striking changes are now occurring in m...

Plants grow bigger and more vigorously through changes in their internal clocks

AUSTIN, TexasHybrid plants, like corn, grow bigger and better than their parents because many of their genes for photosynthesis and starch metabolism are more active during the day, report researchers from The University of Texas at Austin in a new study published in the journal Nature . Their...

Study confirms amphibians' ability to predict changes in biodiversity

Biologists have long suspected that amphibians, whose moist permeable skins make them susceptible to slight changes in the environment, might be good bellwethers for impending alterations in biodiversity during rapid climate change. Now two University of California biologists have verified the ...

Scientists identify cell changes leading to impaired 'artificial kidney' function

Molecular targets identified by a Spanish research team may hold the key to freedom for some sufferers of kidney disease. A new study published in Disease Models & Mechanisms (DMM), dmm.biologists.org , reveals the cellular signals which cause one treatment for kidney failure to lose its useful...

NJIT professor's research suggests changes in underwater data communications

An NJIT professor, who has discovered new communication channels in underwater environments and invented a technique to communicate data through these channels, will be honored later this month by the New Jersey Inventors Hall of Fame. His work will eventually allow multiple users and underwater v...

Study identifies changes to DNA in major depression and suicide

Autopsies usually point to a cause of death but now a study of brain tissue collected during these procedures, may explain an underlying cause of major depression and suicide. The international research group, led by Dr. Michael O. Poulter of Robarts Research Institute at The University of Wester...

Study suggests past climate changes may have promoted the formation of new species in the Amazon

AUSTIN, TEXASThe results of a new study suggest that past climate changes and sea level fluctuations may have promoted the formation of new species in the Amazon region of South America. Today, the Amazon basin is home to the richest diversity of life on earth, yet the reasons why this came to...

Surprisingly rapid changes in the Earth's core discovered

In a recent paper published in Nature Geoscience (*), the geophysicist Mioara MANDEA from the GFZ German Research Centre for Geosciences, Potsdam and her Danish colleague Nils OLSEN from the National Space Institute/DTU Copenhagen, have shown that motions in the fluid in the Earths core are changi...

Thinking ahead: Bacteria anticipate coming changes in their environment

Microbes may be smarter than we think. A new study by Princeton University researchers shows for the first time that bacteria don't just react to changes in their surroundings -- they anticipate and prepare for them. The findings, reported in the June 6 issue of Science , challenge the prevai...

Woolly-mammoth gene study changes extinction theory

A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity. "The population was split into two groups, then one of the groups died out 45,000 years ago,...

Mass. General study shows how exercise changes structure and function of heart

For the first time researchers are beginning to understand exactly how various forms of exercise impact the heart. Massachusetts General Hospital (MGH) investigators, in collaboration with the Harvard University Health Services, have found that 90 days of vigorous athletic training produces signi...

Neurotechnologija Changes Corporate Name to Neurotechnology

New Name Reflects Growing International Presence for Acclaimed Provider of Biometric Algorithms and Object Recognition Technologies VILNIUS, Lithuania, April 14 /PRNewswire/ -- Neurotechnologija, a provider of high-precision biometric identification technologies, today announced the chan...

New study changes conditions for Spanish brown bears

Brown bears from the Iberian Peninsula are not as genetically different from other brown bears in Europe as was previously thought. An international study being published this week in Proceedings of the National Academy of Sciences, PNAS, shows that, on the contrary, the Spanish bear was only rec...

Epigenetic changes discovered in major psychosis

Scientists have discovered epigenetic changes (i.e. chemical changes to a gene that do not alter the DNA sequence) in individuals with schizophrenia and bipolar disorder. This is the first epigenome-wide investigation in psychiatric research, and this groundbreaking data may be a significant step...

Man-made changes bring about new epoch in Earth's history

Geologists from the University of Leicester propose that humankind has so altered the Earth that it has brought about an end to one epoch of Earths history and marked the start of a new epoch. Jan Zalasiewicz and Mark Williams at the University of Leicester and their colleagues on the Stratigra...

Humans have caused profound changes in Caribbean coral reefs

Coral reefs in the Caribbean have suffered significant changes due to the proximal effects of a growing human population, reports a study published in the Proceedings of the Royal Society of London, B. It is well acknowledged that coral reefs are declining worldwide but the driving forces remai...

Elevated carbon dioxide changes soil microbe mix below plants

UPTON, NY - A detailed analysis of soil samples taken from a forest ecosystem with artificially elevated levels of atmospheric carbon dioxide (CO 2 ) reveals distinct changes in the mix of microorganisms living in the soil below trembling aspen. These changes could increase the availability of es...

UC Davis bird-flu expert calls for changes in early-warning system

The international science community is not doing enough to track the many avian influenza viruses that might cause the next pandemic, a UC Davis researcher says in today's issue of the journal Nature. Global surveillance is critical for identifying and tracking potential pandemic viruses such a...

Hearing changes how we perceive gender

EVANSTON, Ill. --- Think about the confused feelings that occur when you meet someone whose tone of voice doesnt seem to quite fit with his or her gender. A new study by neuroscientists from Northwestern University focuses on the brains processing of such sensory information about anothers gen...

A new explanation for evolutionary changes in genetic sex-determination systems

In animals with separate sexes, embryos commit to becoming male or female at an early stage. Often this key decision is made by sex determination genes on the sex chromosomes. The genes involved in sexual development have changed remarkably little during evolution. In contrast, the sex determin...

Tolerance to inhalants may be caused by changes in gene expression

AUSTIN, Texas--Changes in the expression of genes may be the reason why people who abuse inhalants, such as spray paint or glue, quickly develop a tolerance, biologists at The University of Texas at Austin have discovered. The team, led by graduate student Yan Wang, used the fruit fly Drosophi...

New technique reveals subtle force-induced changes in biomolecule's conformation

Scientists studying biological systems at the molecular level now have a new hybrid technique to probe the dynamics of the Holliday junction. The Holliday junction is a four-stranded DNA structure that forms during a process known as homologous recombination, which occurs when damaged DNA is repai...

New study shows fish respond quickly to changes in mercury deposition

Reducing atmospheric mercury emissions should quickly reduce mercury levels in lake fish, according to a three-year study published this week in the Proceedings of the National Academy of Science. The study showed that an increase in mercury loading at rates relevant to atmospheric deposition resu...

New study shows fish respond quickly to changes in mercury deposition

Reducing atmospheric mercury emissions should quickly reduce mercury levels in lake fish, according to a three-year study published this week in the Proceedings of the National Academy of Science. The study showed that an increase in mercury loading at rates relevant to atmospheric deposition resu...

Iowa State University researchers develop process for 'surgical' genetic changes

AMES, Iowa - Research led by scientists at Iowa State University's Plant Sciences Institute has resulted in a process that will make genetic changes in plant genes much more efficient, practical and safe. The breakthrough was developed by David Wright, an associate scientist, and Jeffery Townsen...

Getting warmer? Prehistoric climate can help forecast future changes

The first comprehensive reconstruction of an extreme warm period shows the sensitivity of the climate system to changes in carbon dioxide (CO 2 ) levels as well as the strong influence of ocean temperatures, heat transport from equatorial regions, and greenhouse gases on Earth's temperature. ...

Wildflower declines in Thoreau's Concord woods are due to climate changes

(Boston) Boston University and Harvard University researchers have established for the first time that a study of evolutionary relatedness among plant populations is critical when considering the patterns of species loss due to climate change. Rapid changes in temperature which have led to changes...

Air monitoring helps anticipate possible ecosystem changes

AMARILLO When rain settles the atmosphere and brings air pollutants to the ground, it can have a lasting effect on ecosystems, sometimes hundreds of miles away, according to a Texas AgriLife Research agricultural engineer. Dr. Brent Auvermann, research engineer and Texas AgriLife Extension Se...

Stanford researchers say living corals thousands of years old hold clues to past climate changes

Using radiocarbon dating and samples of deep-sea corals snipped from the floor of the Pacific Ocean by a submersible, researchers from Stanford and Lawrence Livermore National Laboratory have discovered that deep-sea corals growing off Hawaii are much older than previously thoughtsome as old as 4,...
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