About five-ten percent of cases of acute myeloid leukemia, an aggressive blood cancer that is currently incurable in 70 percent of patients, are characterized by the rearrangement of a gene called MLL (Mixed-Lineage Leukemia). Medical researchers have identified a protein, RNF20, involved in DNA...

A discovery using stem cells from a patient with motor neuron disease could help research into treatments for the condition. The study used a patient's skin cells to create motor neurons - nerve cells that control muscle activity - and the cells that support them called astrocytes. Fuente :...

Volcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic...

Vascular brain injury from conditions such as high blood pressure and stroke are greater risk factors for cognitive impairment among non-demented older people than is the deposition of the amyloid plaques in the brain that long have been implicated in conditions such as Alzheimer's disease, a new...

Researchers employed an extensive analysis of genomic information to identify a new, high-risk cohort of ovarian cancer patients, characterize their tumors, find a potential treatment and test it in mouse models of the disease. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/k...

The increasing production and use of antibiotics, about half of which is used in animal production, is mirrored by the growing number of antibiotic resistance genes, or ARGs, effectively reducing antibiotics' ability to fend off diseases -- in animals and humans. Fuente :...

Ancient carbon trapped in Arctic permafrost is extremely sensitive to sunlight and, if exposed to the surface when long-frozen soils melt and collapse, can release climate-warming carbon dioxide gas into the atmosphere much faster than previously thought. Fuente :...

NASA's Landsat Data Continuity Mission (LDCM) roared into space at 1:02 p.m. EST (10:02 a.m. PST) Monday aboard an Atlas V rocket from Vandenberg Air Force Base in California. The spacecraft carries two instruments, the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS). The...

Researchers "cured" a strain of bacteria of its ability to resist an antibiotic in an experiment that has implications for a long-standing public health crisis. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...

Using cutting-edge time-lapse photography, researchers have discovered clues to the development of the head at the cellular level, which could point scientists to a better understanding of how organs and birth defects form in humans. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

New details into the activation of a cell surface protein that has been strongly linked to a large number of cancers and is a major target of cancer therapies have been reported by Berkeley Lab researchers. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/G...

El uso sin control de antibióticos para tratar animales puede provocar muertes en humanos por enfermedades que ya se creían controladas ||| Fuente : http://esmateria.com/2013/02/11/las-superbacterias...

A new study, conducted specifically to explore the forces driving extreme weather events and their implications for national security planning over the next decade, finds that the early ramifications of climate extremes resulting from climate change are already upon us and will continue to be felt...

With Valentine's Day looming, many married couples will wish marital bliss for their single friends. At the same time, many singles will pity their coupled friends' loss of freedom. People like to believe that their way of life -- whether single or coupled -- is the best for everyone, especially if...

Spending a day in someone else's shoes can help us to learn what makes them tick. Now the same approach is being used to develop a better understanding between humans and robots, to enable them to work together as a team. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...

Engineers have created genetic circuits in bacterial cells that not only perform logic functions, but also remember the results, which are encoded in the cell's DNA and passed on for dozens of generations. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...

Researchers who conducted a clinical trial in American Samoa to test whether community health workers could help adults with type 2 diabetes found that the patients who received the intervention were twice as likely to make a clinically meaningful improvement as those who remained with care only in...

Scientists have simulated "robot" cells to study the development of the microvascular systems in the brain. The goal is to find a way to direct the development of vessels that feed oxygen-starved cells in stroke and neurodegenerative disease patients. Fuente :...

Researchers are characterizing simple, cheap measurements of labile soil organic matter that could predict the performance of corn crops and help farmers optimize their cropping systems. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/H...

A new study suggests that exercise may reduce Caucasian men's risk of developing prostate cancer. And among Caucasian men who do have prostate cancer, exercise may reduce their risk of having more serious forms of the disease. Unfortunately, the benefits do not seem to apply to African-American...

Whether Alzheimer’s, Parkinson’s or Huntington’s Chorea – all three diseases have one thing in common: They are caused by misfolded proteins that form insoluble clumps in the brains of affected patients and, finally, destroy their nerve cells. One of the most important questions in the biological...

A lack of the protein endoglin in the blood vessels of tumor-bearing mice enables the spread of daughter tumours, according to researchers. Given that the tumor vasculature constitutes an important barrier to the spread of cancer cells, the team suggests that drugs should be developed to strengthen...

Ultraviolet vision evolved at least eight times in birds from a common violet sensitive ancestor finds a new study. All of these are due to single nucleotide changes in the DNA. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

High blood pressure during pregnancy — even once or twice during routine medical care — can signal substantially higher risks of heart and kidney disease and diabetes, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...

A new study shows for the first time that ribonucleic acid interference (RNAi) is effective in the treatment of cancer patients. Harnessing these molecules to silence genes involved in the development and growth of cancer cells is an important step forward in developing a new and more targeted type...

Domestic dogs are much more likely to steal food when they think nobody can see them, suggesting for the first time that dogs are capable of understanding a human’s point of view. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/8...

Scientists have now been able to identify the grass pollen molecule, against which the allergic response of hay fever in children is initiated. In addition, it was shown that the first individual antibodies generated in children against individual pollen molecules can be identified even before the...

How far would you go to get the attention of the one you love? According to a recent study it seems that given a romantic opportunity, men are willing to take big risks in getting attention from the opposite sex, and what’s more it’s all down to evolution. Fuente :...

Scientists have created a new method to generate bone cells which could lead to revolutionary bone repair therapies for people with bone fractures or those who need hip replacement surgery due to osteoporosis and osteoarthritis The researchers cultured human embryonic stem cells on to the surface...