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Protein helps regulate the genes of embryonic stem cells

...h from University of North Carolina at Chapel Hill shows how a protein may be crucial to the regulation of genes in embryonic stem cells. The protein, called "eed," is needed for an essential chemical modification of many genes. Embryos cannot survive without the modification. The findings appear in the Ma...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

...ndmark study of the genetics of the t haplotype-it shows for the first time that different genes within the haplotype cause transmission ratio distortion and sterility." The research is published in the March 1 issue of the Proceedings of the National Academy of Sciences. ...

Are rice and wheat behind China's population boom?

...'s Shandong University in the province of Shandong shows that not only was millet grown, but rice was apparently the prevalent food source, and wheat was also on the scene. The discovery of wheat - excavated from a pit among ancient house ruins and garbage dumps - was especially intriguing. The Chinese we...

Africa to take it on chin again with climate change

A new analysis of Africa's past and future climate shows that the Sahel region, which experienced catastrop...southern Africa. "In our models, the Indian Ocean shows very clear and dramatic warming into the future, which means more and more drought for southern Afri...

New World founders small in number

... changed since they were founded. His new approach shows that the New World was colonized by a surprisingly small population with an effective size of only about 70 individuals (those individuals likely to contribute genes to the next generation). Hey's approach addresses shortcomings in traditional popul...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...ockefeller University's Fernando Nottebohm, Ph.D., shows that these replaceable neurons share something in common with the neurons that die in people with diseases such as Alzheimer's and Parkinson's: both have unusually low levels of a protein called UCHL1. "It would be ironic if the shortfall in a same ...

Elephant seal pups suffer from ocean warming

...r from the University of California in Santa Cruz, shows that as waters get warmer the average weight of an elephant seal pup decreases. Weaning weights are a direct indicator of food availability to mother seals during their pregnancy. Because their prey has migrated to colder waters, female seals have to...

Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol

...ced when CDK2 was given back to the cells, so this shows us that CDK2 is the real target of Tarceva. "This...cept that describes how Tarceva works, and it also shows that we have a technology that can rapidly measure the true activity of CDK2 in a tumor sample," Uen...

Study uncovers bacteria's worst enemy

...t might also be found at the site. The study also shows that contrary to the conventional wisdom, when it comes to these environmental bacteria, plutonium is less toxic than uranium and, in general, actinides are less toxic than other types of metals. This suggests that actinide toxicity will not impede b...

Gladstone investigators discover how resting T cells avoid HIV infection

...g and activating additional T cells. The new study shows that this activation process dismantles the highly effective A3G antiviral shield, making these cells highly susceptible to HIV infection. Greene's group is now looking at ways to use this new knowledge therapeutically. One approach would involve co...

Oldest cranial, dental and postcranial fossils of early modern European humans confirmed

...ividuals - at least 5 or 6 represented. The dating shows that the Mladec assemblage is central to discussions of modern human emergence in Europe and the fate of the Neandertals. The Mladc remains are universally accepted as those of early modern humans. However, there has been an ongoing debate as to whe...

Brain May Be Less Plastic Than Hoped

...#62; But the latest imaging research from his team shows that, in monkeys, this is not the case. “We asked: Can visually driven activity in the region of the primary visual cortex that corresponds to the retinal injury recover to pre-lesional levels in the months following the lesion??said Smirnakis. “The ...

Gene keeps neural cells on correct developmental path

...hanism to direct neuronal development. "This study shows that there is more than one way to keep a REST-regulated gene repressed," said Michael G. Rosenfeld, an HHMI investigator at University of California, San Diego, who co-authored an accompanying commentary in Cell with Victoria Lunyak, a research asso...

A New Species of Monkey is Discovered in Tanzania: The First in Africa for More Than 20 Years

...ndulu Forest. "Clearly this remarkable discovery shows that there are still wild places where humans are not the dominant species," said Dr. John G. Robinson Senior Vice-President and Director of International Conservation Programs for WCS. "This new species of monkey should serve as a living symbol tha...

Two chemicals boost immune cells' ability to fight HIV without gene therapy

...sting the immune system. UCLA's previous research shows that telomerase rejuvenates the telomeres and allows the immune cells to remain youthful and active as they replicate under HIV's attack. Drugs that activate telomerase also offer therapeutic potential for a wide spectrum of degenerative diseases and...

Microscopes at microscopic size

...opment of the science through the spin-out company shows how cutting edge research in the biosciences can meet real world challenges. Bochips have the potential to make a real difference in medical diagnostics and drug development." The research is being carried out at the Wales College of Medicine and in...

Hydrogen and methane provide raw energy for life at 'Lost City'

... marine geology and geophysics program. "Lost City shows us that geological, chemical and biological processes are intimately linked at a primal environment, and lends strong support to the need for interdisciplinary approaches to scientific research." Other co-authors are Gretchen Früh-Green, Swiss Feder...

Wake Forest scientists find new combination vaccine effective against plague

...vant in humans," Mizel said. He said the research shows that the mice were protected for at least three months after immunization. The work is part of a $9.125 million, five-year research program funded by the National Institutes of Health under a federal bioterrorism initiative. "The development of a va...

Where bacteria get their genes

...cies of bacteria. Ochman and his colleagues' work shows that bacterial lineages can still be traced by considering only the "traditional" forms of genetic inheritance. The widespread exchange of genes does not blur the line of descent because the acquired genes get lost from the genome at a later point or...

Research shows smoking adds a decade to reproductive age of IVF patients

...f the co-authors, said: "What our research clearly shows is that both smoking and being overweight unfavourably affect the live birth rate after IVF. Smoking has a devastating impact. It is comparable to adding a decade to the reproductive age of a 20-year-old. This means it makes her the equivalent of a 3...

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