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Tag: "inner" at biology news

ORNL, UC Berkeley unravel real-world clues to Earth's mysteries

...the complex biological relationships and how these inner workings might apply on a grander scale. In a paper to appear today on Science Online, researchers from the Department of Energy's Oak Ridge National Laboratory and the University of California Berkeley describe a bacterial community that flourishes...

MIT engineers an anti-cancer smart bomb

... the nanocell with an anti-angiogenic drug and the inner balloon with chemotherapy agents. A "stealth" surface chemistry allows the nanocells to evade the immune system, while their size (200 nanometers) makes them preferentially taken into the tumor. They are small enough to pass through tumor vessels, bu...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

...at the exterior of our bodies is symmetrical while inner organs are arranged asymmetrically. In research with zebra fish, as a model for human biology, Juan-Carlos Belmonte and his Salk Institute colleagues found that retinoic acid (vitamin A) is the signal that buffers the influence of asymmetric cues in...

Health costs soar as 60 million Americans classed as obese

...ey envision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece ...

UN successfully tests 'green' pesticide against locusts

...ey envision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece ...

High fidelity keeps human DNA assembly line humming

...tate University have made a major discovery on the inner workings of genetic coding, mapping out mechanisms of one of life's most elemental functions: RNA synthesis. Their work has crucial implications for how a normal cell forms a tumor and how a virus runs amok. The work is published in the May 13 editi...

DNA constraints control structure of attached macromolecules

...ey envision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece ...

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

...of the nerve cells that are often missing from the inner ears of patients with profound hearing loss. “Sonic hedgehog and retinoic acid are molecules found in embryonic tissues, but not in adult tissues,?said Dr. Hashino. “This suggests that treating marrow-derived stem cells with these molecules before t...

Engineers improve plastic's potential for use in implants by linking it to biological material

...tides to a container with polypyrrole stuck on its inner surface. The bacteriophages that didn't wash away when exposed to conditions that hinder attachment were retested on a new polypyrrole-coated container, a process that was repeated four more times. The sticky peptide selected, known as T59, is a str...

Embryonic Stem Cells Treated With Growth Factor Reverse Hemophilia In Mice: UNC Researchers

...oderm precursors," or PEPs. Endoderm refers to the inner layer of early embryonic cells that develops into the digestive and respiratory systems. "Not only do ES cells differentiate into PEPs, they also engraft, persist, differentiate further and then function following injection, resulting in the persist...

SuperLigands - a database of ligand structures derived from the Protein Data Bank

...development. Stem cells were then derived from the inner cell mass of the blastocyst. In laboratory culture, these cell lines displayed signs of immunological compatibility with the patients' cells, Science authors reported. Oocyte donors and patients who donated non-reproductive cells were all unpaid vol...

Scientists generate patient-specific stem cells, Science study says

...development. Stem cells were then derived from the inner cell mass of the blastocyst. In laboratory culture, these cell lines displayed signs of immunological compatibility with the patients' cells, Science authors reported. Oocyte donors and patients who donated non-reproductive cells were all unpaid vol...

Study reveals dramatic difference between breast cancers in US and Africa

...ly to arise from basal-like cells, rather than the inner milk-secreting luminal cells, which are the most common source of breast cancers for U.S. and European women. (This type of basal-like breast cancer is also observed among women with inherited BRCA1 mutations). Tumors that arise from basal cells have...

NIAID begins clinical trial of West Nile virus vaccine

... When the vaccine is injected into the muscle, the inner machinery of the muscle cells "reads" the DNA and converts it into two WNV proteins. Recognizing that the proteins are foreign, the muscle cells display them on their surface to alert the body's immune system--both helper T cells, which spur the prod...

NIH Researchers Discover How Insulin Allows Entry of Glucose Into Cells

...cles immediately stop moving, tether to the cell’s inner surface, then fuse with the cell membrane. GLUT 4, contained in the vesicles?membrane, then enters the cell membrane, where it ferries glucose into the cell. The researchers made their observations using a technique known as total internal reflector...

Cerebral navigation: How do nerve fibers know what direction to grow in?

... a mystery. "Very little has been known about the inner workings of the cell that govern axon guidance," says Michael Greenberg, PhD, Director of the Neurobiology Program at Children's and senior author on both studies. "These studies begin to give insight into how the various steps of axon guidance are c...

Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries

...ttacks in some people. Fatty buildups occur on the inner lining of an artery and gradually thicken into a plaque. As plaque grows, it narrows the artery more and more. When the plaque ruptures, blood clots form that can block the artery entirely. Low-density lipoprotein is transported inside arteries by m...

Scientists discover that host cell lipids facilitate bacterial movement

...ntracellular pathogen can harness signals from the inner rather than the outer surface of the cell membrane. "The most exciting and surprising finding is that an intracellular bacteria is able to attract host cell membrane lipids to its surface and these membrane lipids facilitate the ability of the bacte...

GenMAPP 2.0 released

...precursors -- the specialized neurons found in the inner earof humans that make hearing possible. This rese...er, in humans hair cells areburied deep inside the inner ear making them difficult to access. Haircells in zebrafish are located on the surface of their body...

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

...precursors -- the specialized neurons found in the inner earof humans that make hearing possible. This rese...er, in humans hair cells areburied deep inside the inner ear making them difficult to access. Haircells in zebrafish are located on the surface of their body...

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