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Tag: "stage" at biology news

Nano-devices hold promise for early-stage cancer detection

...y zeros in on specific malignant cells at an early stage when treatment can be more effective and potential side effects minimized." The funding is part of a $10.6 million initiative to expand existing nano-fabrication and integration facilities at McMaster to establish a world-class Micro- and Nano-S...

UCLA researchers unravel a mystery about DNA

...RNA from a DNA or RNA template -- can help set the stage for new opportunities in combating bacterial diseases that kill 13 million people worldwide each year. The researchers used single-molecule spectroscopy to monitor the transfer of energy between -- and hence the distance separating -- pairs of fluo...

Nanotech tools yield DNA transcription breakthrough

...achine that carries out transcription, setting the stage for new opportunities in combating the bacterial diseases that kill 13 million persons each year worldwide. "For six decades, antibiotics have been our bulwark against bacterial infectious diseases, but this bulwark now is collapsing," said Ebri...

Researchers discover mechanism that determines when detailed memories are retained

... involving acetylcholine in the brain, setting the stage for the latest findings. ...

Detecting microalgae in coastal waters

...ld on a previous CICEET project to develop a field stage prototype of a laser fluorometer that detects multiple target pigments and can differentiate between different types of algae. "Knowledge is power. We hope this instrument will characterize microalgal populations rapidly and easily, for instance...

Does missing gene point to nocturnal existence for early mammals?

...ve happened ?perhaps the early mammals were at one stage nocturnal and had no need for the second gene, for instance. We also want to find out what losing one of these genes means for humans."...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...alf of 154 smokers who had surgery to remove early stage lung cancer picked up a cigarette again within 12 ...nter enrolled 154 patients being treated for early stage lung cancer at their centers. These patients were lucky, Walker said. "Their cancer was discovered l...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...hat the key genetic changes were during that final stage of human evolution." Another author of the Science paper, Svante Pääbo of the Max Planck Institute, sequenced Neanderthal mitochondrial DNA in 1997 and first suggested that Neanderthals did not make a substantial contribution to the modern human ge...

Using nature's most primitive anti-viral defense system to find new approaches to cancer research

...anding the molecular mechanisms that underlie each stage is therefore an important goal for cancer scientists. Dr Baum's research builds on his earlier work when, in collaboration with others, he completed a full study of the function of every one of the fruit fly's genes in cells. This is allowing him now...

Scientists explore how complex organs develop from a simple bud

...ich defects in the growth and development of fetal stage organs can affect organ function after birth -- have important implications for human health. Two of the reviews in the Journal delve into tubulogenesis ?a process that is intimately tied to branching morphogenesis. Another contains research aimed ...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

...bound to Scp1 in 3D," says Noel. This will set the stage for the rational fine-tuning of their efficacy using an established process Noel likens to molecular dentistry, because his group is striving to shape inhibitory molecules to fit the groove in Scp1 much the same way that a dentist molds a filling to ...

Novel vaccine shows promise against early-stage breast cancer

...ne that targets HER-2/neu over-expression in early stage breast cancer, known as DCIS (ductal carcinomas in situ, or early stage cancer formation in the breast's milk ducts). It is estimated at 50-60 percent of DCIS is directly ...

Researchers identify new weapon to fight deadly bacterial sepsis

...ompound very similar to a diabetes drug already in stage three clinical trials in the United States, the final level of human experimentation before a drug is considered for federal licensing approval. If those diabetes trials prove successful and the drug is approved for use in diabetics, it's possibl...

American scientist's research of life's first cells

...outstanding young molecular biologists at an early stage of their careers. Some 54 regional winners and 12 grand prize winners have so far received the award, honoring exceptional thesis work in the field of molecular biology. Applicants for the 2006 GE & Science Prize for Young Life Scientists earn...

Discovery of the first resistance gene to rice yellow mottle virus

... their host's proteins in order to accomplish each stage of their infection cycle. One of the proteins that the RYMV requires appears to be the eIF(iso)4G translation initiation factor coded by the Rymv1 gene which is probably involved in viral protein translation, but also perhaps in other processes such ...

Edible coatings will be the packaging of the future

...een exposed to low relative humidity. The second stage involved a similar experiment, but with films made of starch, known to be an efficient barrier to oxygen, and with which trials were undertaken. In this case, the thickness of the film did not influence the protector effect on the oil, but it was sho...

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

... in which the cells are introduced at a particular stage in their development. It was carried out at the London Institute of Ophthalmology using a novel approach developed at the University of Michigan Kellogg Eye Center to tag rod precursor cells and prepare them for transplantation The team of scienti...

Anticipation plays a powerful role in human memory, brain study finds

... after it happens." A teacher who struggles with stage fright, for example, might feel anxious before every class she has to teach. The UW-Madison work suggests that the longer she spends dreading her next lecture, the stronger her memory of the uncomfortable experience is likely to be when it is over. U...

Vanishing beetle horns have surprise function

...gardless of whether they are resorbed in the pupal stage or maintained into the adult." Because all the Onthophagus beetles the scientists examined form horns during development, Moczek and colleagues also argue the evolution of ornate horns in the adult beetles may actually have happened second -- tha...

Cracking the egg

...anges that occur during transition to the two-cell stage embryo. The researchers performed a large-scale survey of thousands of fragments of mouse egg cDNA. The cDNA fragments are reverse coded from messenger RNA and therefore indicate which genes are being expressed. They identified 5,400 active genes i...

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