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Tag: "section" at biology news

Plants, animals share molecular growth mechanisms

...t is specific to plants. We'd like to know if this section is important and whether it regulates DIS3 or the whole WAVE complex." For growth and development biochemical processes to proceed normally, activators such as ARP 2/3 are needed to trigger actin filaments' formation and growth, Szymanski said. Howe...

Research advances quest for HIV-1 vaccine

...0 with a peptide fragment that is identical to the section of gp41 that the antibody recognizes. The researchers identified the specific amino acids on gp41 that 4E10 interacts with and the 3D structure adopted by these amino acids. These study results suggest that 4E10 interacts with gp41 at a conserved reg...

“Nano-scissors?laser shows precise surgical capability

...gery to work on these little beasts, being able to section a singleaxon (the "arms" of a neuron) with great precision : Anultra-short pulse laser that can perform extremely precise surgery ontiny roundworms may be the key to understanding nerve regeneration andis an important step toward treatment of human ...

Found: Missing sequence of the human Y chromosome

...imately two-thirdsof the Y chromosome, including a section spanning the centromere. Suchrepetitive sequences, although not recalcitrant to cloning, arelaborious to assemble, requiring meticulous analysis of complexrepeated sequences.In this case, the challenge was undertaken by a team of scientists ledby Gud...

Gene therapy converts dead bone graft to new, living tissue

...es, often must be treated by removing the diseased section of bone and replacing it with the only alternative available ?a donated section of comparable bone from a cadaver. The new splint of bone is then literally screwed into place, givi...

New SARS Protein Linked To Important Cell Doorway

...ic punch. Their computerized search highlighted a section of the SARS genetic code that shared several features with immune evasion proteins previously identified in other viruses. Some genetic codes contain sequences of protein-building instructions that the organisms never use, and the researchers had no ...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

... was used as a sort of dipstick to show that a key section of the West Antarctic Ice Sheet probably never contained as much ice as scientists originally thought it did. That means it couldn't have contributed as much to the higher sea level. In an area called Siple Dome, the ice sheet currently rises 1,000 ...

New Breast Cancer Test Could Save Lives

...breast tissue, and therefore can reach a far wider section of women than X-ray mammography can. Women below 50 in particular will benefit from this new test, which is much more reliable than X-rays at detecting cancer in this age group. The test is also a much more comfortable procedure than X-rays since it...

Bird Brains Show How Trial and Error May Contribute to Learning

...rom a component of a crucial learning circuit in a section of the forebrain that seems to generate the trial and error necessary to master sophisticated motor skills, such as singing in birds or speech and sports in humans. "It means this part of the brain is important for instructing or allowing changes in...

New lab technique identifies high levels of pathogens in therapy pool

... of "soap scum," can be found in a one-inch-square section of a normal home shower curtain. ...

Small species back-up giant marsupial climate change extinction claim

...ared. By systematically analysing a 10 metre deep section of creek bed, the team uncovered 44 species, rangi...as woodlands and vine thickets dominate the lowest section of the trench, which dates to around 45,000 years ago," says Mr Price. "Other younger sections have...

Chromosome Deletion Predicts Aggressive Neuroblastoma

When genes are deleted on a particular section of chromosome 11, the result is an aggressive form of the childhood cancer neuroblastoma. A new study suggests that detecting this genetic deletion during the initial evaluation of children with neuroblastoma may indicate to physicians that they shou...

Road salt affects mitigation wetlands

...tally responsible as possible." When building the section of road across the Behrend campus, PennDOT installed an elaborate drainage system beneath the road to collect all the runoff. The water goes to only one of the six constructed wetlands and eventually runs downhill through woodlands. Silver is monito...

Confocal imaging promises early detection of skin cancer

...nal. “Confocal microscopy allows you to optically section through objects,?says Dr Sheblee. “It’s like a biopsy without the painful physical cuts and resulting scars, looking at layers slice by slice.?The technology has been around for 50 years, but only recently been used in the life sciences area. Becaus...

MUHC researchers make cancer target breakthrough

...by creating antisense--an exact opposite of a tiny section of the MTHFR gene. "MTHFR is involved in the synthesis of methionine--a critical nutrient necessary for growth of cancer cells," explains Dr. Rima Rozen, principal investigator of the new study, and Deputy Scientific Director of the MUHC Research Ins...

Brain May Be Less Plastic Than Hoped

...brain interprets as light, color, or objects. Each section of the retina corresponds to a specific location in the primary visual cortex. Without any visual signal to interpret, the cortical area corresponding to each monkey's blind spot fell silent, generating no activity. The team measured the size and sh...

Making Sure Sacred Sheep Don't Become Extinct

...ns Blackburn, who is the coordinator of the animal section at ARS's National Center for Genetic Resources Preservation in Fort Collins, Colorado, is working on is likely not familiar to many Americans. He is trying to collect 6,000 units of semen from Navajo-Churro sheep, a breed culturally important to the ...

15-year hunt finds cause of pseudothalidomide syndrome

..., which is reported in the April 10 advance online section of Nature Genetics, proves that genes behind very rare inherited diseases can now be found, offering excellent opportunities to strengthen understanding of craniofacial and limb development, health and disease beyond the rare disease itself, say the ...

Gov't Creates Gene Database of Normal Human Tissues

...able cancers. The driving force of research in our section is to translate genomic information to the clinic. The goal is to save lives and improve the quality of life for children with high-risk cancer." Until now, no publicly available, normal human organ database has used so many tissue samples (158), or...

U. Iowa researchers improve Huntington's disease symptoms in mice

...ansgenic mouse model used by the UI team carries a section of the human HD gene. These mice quickly develop movement and coordination abnormalities and they die young. Aggregates, or clumps of protein, also develop in certain brain cells. Davidson explained that this mouse is very good for proof-of-principl...

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