Tag: "various" at biology news
Most important actors in the growth process of neurons identified
...rfect starting point for studying the influence of various
genes on the axon growth process. Regulation by several genes From their study of the developing brain of an adult fruit fly, the researchers have found that axon growth is mediated by an interaction among three signal cascades: Wnt, FGF and JNK. ...
Motorola researchers develop selective sensors based on carbon nanotubes
...ned. "Peptides can be used to recognize and detect various
chemical species with high sensitivity and selectivity while carbon nanotubes are well known for their electronic properties." The peptides are made of 20 or so amino acids, so changing the sequence of amino acids allows the researchers to "tune th...
Researchers make nanosheets that mimic protein formation
...l researcher Zhenli Zhang of Glotzer's group tried various
combinations of forces based on information gleaned from experiments performed by post doctoral Zhiyong Tang of Kotov's group. The team discovered that the unique shape of the CdTe nanocrystals gave rise to a combination of forces that conspired to p...
Climate experts search for answers in the oceans
...t possible measurements and allow researchers from various
fields to pool their efforts in an attempt to understand how the climate is reacting to changes. "Clues to climatic changes may already be written on the oceans?surface. Because we now have detailed data that allow us to look for correlations, we ar...
Leading reason for corneal transplants comes into focus
...ith glasses or contact lenses. It's believed that various
forms of FCD are due to multiple gene mutations. ...finer bumps." Gottsch is looking to one day use various
gene therapies to suppress the mutations that he has found. It is hoped that someday the millions of...
Particle size matters to bacteria ability to immobilize heavy metals
...m is addressing one component of a wider effort by various
scientists led by a PNNL team in looking at the fu...nfluence of particle size in bioreduction rates of various
metal oxides ," Bose said. The talk, "Bioreduction kinetics of hematite nanoparticles by Shewanel...
A fisheye view of the deadliest breast cancer
...n highly metastatic forms of breast cancer. Using various
fluorescent tags, they labeled human MDA breast cancer cells in two ways to mark the parental MDA cells and to mark tumor cells that overexpress RhoC. They injected both tumor cell lines into the immune-suppressed fish and watched the cancer’s progr...
Researchers discover mechanism that determines when detailed memories are retained
...eriments, the researchers exposed rats to tones of various
frequencies. During some of the trials, they paire...entists could measure how well they remembered the various
frequencies by measuring changes in their respiration rates. The results showed that a weak activ...
New engineered drug may offer prolonged arthritis relief
...d directly to genes that control the production of various
proteins in cells, with the combination forming "f...composition, molecular weight and concentration of various
ELPs, Betre developed a protein for use in joints that would precipitate out of solution and clump a...
Brain regions do not communicate efficiently in adults with autism
... adults with autism has provided new evidence that various
brain regions of people with the developmental disorder may not communicate with each other as efficiently as they do in other people. Researchers from the University of Washington's Autism Center will report today at the annual meeting of the Socie...
Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack
...y also introduce and evaluate the effectiveness of various
intervention strategies. The study represents th...e knows about the natural history of smallpox ?how various
forms of the disease manifest over time ?with human patterns of behavior to construct the most-compr...
Mayo Clinic: Gene expression profiling not quite perfected in predicting lung cancer prognosis
...n profiling has been successfully used to classify various
tumors and assess tumor stage, metastasis and patient survival rates, the evidence suggests that gene-based prediction for lung cancer is not yet entirely dependable. However, some results have been promising: gene profiling has reliably predicted p...
Newly discovered behavior in cancer cells signals dangerous metastasis
... cancer cells, Garcia-Blanco said. Identifying the various
steps that occur during the natural progression of tumors could lead to therapies for blocking metastasis, he said. ...
Genomic comparison of lactic acid bacteria published
...r, lactic acid bacteria are used for production of various
commercial bioproducts such as dextran and antimicrobials. The availability of these genome sequences will foster development of additional production schemes for biofuels and other important chemicals." The publication is the culmination of a mul...
Extraordinary life found around deep-sea gas seeps
...e shell beds consisting of live and dead shells of various
types of clams and mussels. These were fringed with stands of another type of deep-sea tube worm that is also gutless and relies on symbiotic bacteria for its nutrition. Corals and, at two of the sites, numerous sponges, were also observed. 'We've...
Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too
...in the response of this neurotransmitter system to various
forms of stress, with pain being itself a physical and emotional stressor," write the authors, led by David J. Scott, Ph.D., a graduate student at MBNI. "The dopamine system in the ventral basal ganglia may represent an important point of interaction...
Bitter taste identifies poisons in foods
...ntermediate). Subjects then rated bitterness of various
vegetables; some contained glucosinolates while others did not. Examples of the 17 glucosinolate-containing vegetables include watercress, broccoli, bok choy, kale, kohlrabi, and turnip; the 11 non-glucosinolate foods included radicchio, endive, egg...
Advance helps explain stem cell behavior
...fied the subset of genes involved in producing the various
types of spinal cord cells ?there may be 10s to 100s of cell types just in the spinal cord. The cell types are created very quickly in early embryonic development by a pattern formation mechanism, and then mature more slowly as the central nervous sy...
Stem cell activity deciphered in the aging brain
... finding also suggests the possibility of treating various
neurodegenerative disorders, including Alzheimer's disease, dementia and depression, by stimulating the brain's ability to produce new nerve cells, said senior study investigator Ashok K. Shetty, Ph.D., professor of neurosurgery at Duke University Me...
Brains can recover from alcoholic damage but patients should stop drinking as soon as possible
...ological changes. They also measured how levels of various
chemicals, including N-acetylaspartate (NAA) and choline, changed between the two time points. NAA can indicate how intact the brain’s nerve cells are (i.e. it is a metabolic marker of neuronal integrity), while choline provides hints at how cell mem...
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