Tag: "formed" at biology news

Chemical derived from vitamin-E shows early promise as cancer drug

...ived mammary cancer cells that normally would have formed a tumor mass and spread (metastasized) to the animals' lungs. Regardless of whether alpha-TEA was administered to the mice by mouth (orally) or via breathing (aerosol), the compound was capable of reducing the primary tumor mass by greater than half....

Cancer vaccine based on pathogenic listeria bacteria shows promise targeting metastases

...tin that piles up and physically propels the newly formed bacteria around the cell. Portnoy thought that if he could eliminate the gene for ActA, he could prevent the bacteria from forming actin motors and spreading from cell to cell. The technique worked, and Cerus adapted one of Portnoy's attenuated stra...

16 APS exercise research highlights, from reduced flu mortality to proteomics & obesity

...l discuss how Krogh and Christensen "conceived and formed the field of human integrative physiology using exercise as a key intervention," how American and European approaches to exercise physiology bifurcated, and where this type of physiology might be leading. Among his many honors, Bengt Saltin received ...

DNA barcode finds four new bird species

...ternational Consortium for the Barcode of Life was formed and includes among its members natural history museums, herbaria, biological repositories and biodiversity inventory sites, as well as academic and commercial experts in genomics, electronics, taxonomy and computer science. The group's goal is to acc...

Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design

... of the enzyme with X-rays, then used the patterns formed by the diffraction of the beams off the crystals to create computer-generated, three-dimensional images of the enzyme shape. The researchers also used this technique to make images of the enzyme bound to the two molecules that the enzyme chemically c...

New anti-inflammatory strategy for cancer therapy identified by UCSD researchers

...wed that following inflammation, the control cells formed more numerous and larger tumor nodules, while the tumors formed by cells in which NF-kB was inhibited, had shrunk or partially disappeared after the LPS injection. ...

Byproduct of water-disinfection process found to be highly toxic

... many are out there? And how many new ones will be formed as chlorine treatments are replaced with alternative methods? ...

Images of 'tail' of protein needed for cell multiplication suggest anticancer drug targets

...variety of techniques to tease apart the structure formed by the bonding of the E2 tail to E1. For example, ... with a beam of X-rays. She then used the patterns formed by the diffraction of the beams off the crystals to create computer-generated, three-dimensional ima...

Israeli scientists reveal the plan of a key cellular machine

...astes" the first draft of RNA straight after it is formed from its DNA template. Many diseases appear to be tied to mistakes in this process, and understanding the workings of the machinery involved may lead to the ability to correct or prevent them in the future. Since the discovery, around 25 years ago, ...

Study by Israeli scientists provides insight on DNA code

...astes" the first draft of RNA straight after it is formed from its DNA template. Many diseases appear to be tied to mistakes in this process, and understanding the workings of the machinery involved may lead to the ability to correct or prevent them in the future. Since the discovery, around 25 years ago, ...

Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2004

...anced spectral and photophysical properties can be formed from single molecules of semiconducting organic polymers. Semiconductors based on organic materials such as polymers are more suited to a range of practical applications than the more conventional and more inflexible inorganic crystals. Computer mode...

Extreme stretch-growth of axons

... they confirmed this growth by identifying a fully formed internal skeleton and a full complement of cellular structures called organelles in the stretched axons. "Surprisingly, the axon appears to be invigorated by this extreme growth," says Smith. "It doesn't disconnect, but forms a completely normal-appe...

For imitative parrots, wagging tongues may be key to vocalization

...olds, and a so-called vocal-tract filter, which is formed by the acoustic resonances of oral and nasal cavities. Characteristics of the latter can be changed by articulatory gesturesthe most important of which are tongue movementsresulting in different speech sounds. Although birds and humans share the capa...

Bone marrow cells routinely help with wound healing

... a clot in order to stop the bleeding. The seal is formed with the help of cells that circulate in your blood all the time and are on the spot immediately. The body also has an inflammatory response: signals direct white blood cells to the area of the wound. The white blood cells arrive to fight off foreign...

Identifying tick genes could halt disease, bioterrorism threat

...ple." The scientists involved in this project have formed the International Ixodes scapularis Sequencing Committee. One of the potential outcomes of this project may be development of vaccines to block transmission of microbes that cause tick-borne illnesses, said Hill, who spearheaded efforts to gain Natio...

Genuine stem cells found in skin might treat hair loss, wounds

...ed onto the backs of hairless mice, the cells also formed stretches of skin, tufts of hair, and sebaceous glands, which secrete an oily substance known as sebum that lubricates skin and hair. "We've identified cells within skin that bear all the characteristics of true stem cells--the ability for self rene...

Battle between bubbles might have started evolution

...rane material while the structural RNAs might have formed a cytoskeleton that influenced stability, shape, growth or division, he said. However, Szostak and his colleagues theorized that a far simpler physical process might explain why cells would compete with one another for the materials necessary to exp...

Diabodies act as guided missiles targeted to mammary tumor growth

...tain the antigen-recognizing portion of antibodies formed by immune system cells to combat disease. The mini-antibody developed by Adams and colleagues, C6.5K-A, is a protein substitute for larger, naturally produced antibodies that specifically target the HER2/neu human tumor-associated antigen. When load...

One-hundred-fifty year old lessons of John Snow still relevant today

... professor of English and co-author, was that Snow formed his conclusions nearly 30 years before Louis Pasteur work with germ theory. "It's interesting to note that Snow came to his conclusions before germ theory and that he didn't even use that concept," he said. "Indeed, he called the agents that caused d...

Meteorites supplied Earth life with phosphorus

...to what's found in ATP." Previous experiments have formed P2-07, but at high temperature or under other extreme conditions, not by simply dissolving a mineral in room-temperature water, Pasek said. "This allows us to somewhat constrain where the origins of life may have occurred," he said. "If you are goin...

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