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Tag: "scientists" at biology news

Mouse brain cells rapidly recover after Alzheimer's plaques are cleared

...a mouse model of Alzheimer'sdisease have surprised scientists with their ability to recuperateafter the disorder...."Prior to the experiment, Holtzman and some other scientists hadregarded plaque damage to nerve cells as a fait accompli--somethingthat the plaques only needed t...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...nto a parasite of the human gut. At the same time, scientists also cataloged the retention and expansion of some...ly recent horizontal gene transfer into a protist, scientists report evidence in the DNA sequence that E. histolytica likely picked up a significant number of its...

Key molecule in plant photo-protection identified

...a mouse model of Alzheimer'sdisease have surprised scientists with their ability to recuperateafter the disorder...."Prior to the experiment, Holtzman and some other scientists hadregarded plaque damage to nerve cells as a fait accompli--somethingthat the plaques only needed t...

Antarctic ice shelf retreats happened before

...ished this week (24 Feb) in the journal Geology by scientists from Universities of Durham, Edinburgh and British...isintegrate when the ocean currents shifted.' The scientists analysed sediments from the bottom of a freshwater lake close to the edge of the present George VI I...

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...indings in the February 24th issue of Nature. The scientists found that Pax3 plays dual ?and somewhat seemingly contradictory ?roles in adult stem cells: it directs them to become melanocytes, but simultaneously prevents them from differentiating completely. "It gets the show going, but at the same time, preve...

Timing is everything: First step in protein building revealed

...seems, even inscience. A team led by Johns Hopkins scientists has unraveled the firststep in translating genetic...t one step but two.In a series of experiments, the scientists found that when yeast'sprotein-building machinery recognizes the starting line for a gene'sinstructi...

UW's Rosetta software to unlock secrets of many human proteins

...hTransferrecently licensed software that will give scientists a huge advantagein the fight against disease.The s... entered into a publicly accessible database,which scientists can then use to conduct research into new drugs andtreatments.Rosetta works by virtually folding pro...

Plants, animals share molecular growth mechanisms

...ts' formation and growth, Szymanski said. However, scientists don't know the specific function of certain actin ...ools Szymanski's research team developed will help scientists learn more about these functions in both plants and animals. The other researchers on this study we...

Researchers find how protein allows insects to detect and respond to pheromones

...hTransferrecently licensed software that will give scientists a huge advantagein the fight against disease.The s... entered into a publicly accessible database,which scientists can then use to conduct research into new drugs andtreatments.Rosetta works by virtually folding pro...

Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine

...discoveries made collectively by us and many other scientists around the world may alter the natural history of this currently incurable leukemia," he added. A decade ago, CLL was considered a uniform disease of immature white blood cells that didn't die, with the slow rise in leukemia cell count seen in patie...

Researchers Uncover Key Step In Manufacture of Memory Protein

... memory, according to a team of researchers led by scientists at the National Institute of Child Health and Human Development of the National Institutes of Health. The protein is known as mBDNF, which stands for mature brain-derived neurotrophic factor. In an earlier study, another team of NICHD researchers ha...

Plants respond similarly to signals from friends, enemies

...or giant cells from which the nematodes feed. The scientists also discovered that, like rhizobia and contrary to popular belief, the root-knot nematode signals plants from a distance and therefore does not need to attach itself to the plant to elicit a response. When the researchers studied L. japonicus plant...

Scientists Replicate Hepatitis C Virus in Laboratory

For the first time, scientists have replicated hepatitis C virus (HCV) in the lab...n liver cells in a cell culture medium. The NIDDK scientists found evidence of HCV proteins and HCV RNA within the human liver cells in the culture. Electron mic...

Research advances quest for HIV-1 vaccine

...potential for accelerating HIV vaccine design when scientists from multidisciplinary laboratories come together to tackle a major scientific challenge. " ### Rosa M.F. Cardoso, Michael B. Zwick, Robyn L. Stanfield, Renate Kunert, James M. Binley, Hermann Katinger, Dennis R. Burton, and Ian A. Wilson: "Broadly...

Novel antiviral technology inhibits RSV infection in mice

...rhouse Airway Disease Research Center, workingwith scientists from the Moffitt Cancer Center and TransGenexNanobiotech Inc., used a revolutionary new technology known as RNAinterference, or gene silencing, to knock out one of the key proteinsneeded for RSV to multiply in the lungs. The virus harnesses thisprote...

A much-needed shot in the arm for HIV vaccine development

...e not to ignore the important contributions madeby scientists outside of the collaboration. "It is my contention thatgreat new ideas are as likely to come from curiosity-driven basicstudies as from the mission-oriented approach that is represented bythe new proposal."The PLoS Medicine editors hail the plan as b...

Ancient olfaction protein is shared by many bugs, offering new pest control target

... sense of smell. A group of Rockefeller University scientists who had previously identified a key gene essential for the sense of smell in fruit flies now shows that this gene's function appears to be evolutionarily conserved across very different insect species. Research by Leslie Vosshall's laboratory had pr...

New Technique for Tracking Gene Regulators

... stepeasier thanks to a new technique developed by scientists at the U.S.Department of Energy’s Brookhaven Natio...sites of a regulator protein known as CREB.“Though scientists have now decoded almost all of the entire humangenome ?the series of nucleotide bases (labeled A, T,...

Whole genome fine map of rice completed

...ecent issue of PLoS Biology (Vol.3 Issue 2, 2005), scientists led by the Beijing Institute of Genomics (BIG) reported a "much improved, near-complete genome analysis of the indica and japonica subspecies of O. sativa." The fine maps of the rice genome sequences will lay a solid foundation for studying the diff...

Finding Cures For Tropical Diseases: Is Open Source An Answer?

...centralized,Web-based, community-wide effort where scientists from laboratories,universities, institutes, and corporations can work together for acommon cause."What would open-source drug discovery look like? "As with currentsoftware collaborations, we propose a website where volunteers couldsearch and annotate...

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