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Tag: "notes" at biology news

Scientists find microRNAs regulate plant development

...ntial for normal plant development. Bonnie Bartel notes that "we have known for several years now that microRNAs regulate genes implicated in auxin responses; with these three reports, we are beginning to understand the consequences of this regulation for the development of the plant." David Bartel adds, ...

International Team Determines Geographic Origin of Leprosy

...ent times, has been one of the most stigmatizing," notes NIAID Director Anthony S. Fauci, M.D. "Their findi...mber of registered leprosy cases around the world, notes Dr. Sizemore. However, despite drug treatment, the number of new cases of leprosy detected each year...

Researcher gets NSF grant to create mutant maize lines

...ngle disruption in the genome," says Brutnell, who notes that the project could expand the understanding of the functions of about 20 percent of the maize plant's entire genome. Once scientists have identified a maize mutant from the online library, they will be able to order kernels with that specific kn...

Researchers make headway in mystery of migraines

...l process, rather than completely turning it off," notes Dr. Blostein. This new understanding of how genetic mutations cause migraines takes us one step closer to the development of improved treatments, providing hope to millions of migraine sufferers. ...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

... that previously could only be given by injection, notes Wei-Chiang Shen, Ph.D., professor and acting chair of the Department of Pharmaceutical Sciences. Shen, along with colleagues David Ann, Ph.D., professor of molecular pharmacology and toxicology, and Yun Bai, doctoral student in the Department of Phar...

Team Invents Device For Weighing Individual Molecules

...as thicker, heavier strings on an instrument sound notes that are lower than lighter ones. Because frequency can be measured so precisely in physics labs, the researchers are then able to evaluate extremely subtle changes in mass of the nanodevice, and therefore, the weight of the added atoms or molecules...

Map of life on Earth could be used on Mars

...the other prokaryotes, Blank's research shows. She notes a pervasive trend of cyanobacterial organisms diverging from low-salinity environments into marine environments over time. "We have the ancestral Archeae ?it diverges into two major lineages, the Crenarchaeota and the Euryarchaeota, one which grows ...

Grass makes environmentally friendly biofuel

...ion years to make fossil fuels," says Cherney, who notes that a grass-for-fuel crop could help supplement f...ive energy industry problematic," says Cherney. He notes that a pellet-fuel industry was successfully established in Europe by providing subsidies to the ind...

UCLA study assesses cost-effectiveness of Hepatitis B drugs

...t has been available for over 15 years. The study notes that interferon ?the oldest of all available thera... shown no success with other treatments." Spiegel notes that the general cost-effectiveness standard accepted by society and many insurers for treating a ch...

Remote control flies? Fly behavior controlled by laser light

...isease, such as in spinal cord trauma, although he notes that the possibility is "far-fetched" at the moment. The remote control is based on the idea that specific nerve cells could be equipped with molecular "receivers" that allow them to recognize an outside signal like a laser light pulse and translate...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...ance to different areas of biomedical research. He notes that insulin-producing beta cells, the pancreatic cells attacked by T cells in type 1 diabetes, also generate reactive compounds similar to those made by antigen-presenting cells. "The beta cells could therefore be modifying their own proteins in th...

Thai spice helps cut blood sugar swings

...s fat) rather being used effectively, Dr. Agatston notes that with large sugar infusions, the body often produces too much insulin, which then lowers the blood sugar level. When that happens, he writes, "new cravings are created, requiring more quick carbohydrate fixes." Next steps Wielinga again warned ...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...electrical properties of the oligoaniline, Lindsay notes that if the molecule is maintained at its highly conductive state (at low voltage) and then the voltage applied to the molecule is increased, the connections to the molecule will rip electrons out of the molecule, pushing it back into its insulating ...

Unchecked DNA replication drives earliest steps toward cancer

...ly seen in so many different cancers. Halazonetis notes that the same techniques used in his experiments to monitor replications stress and DNA breaks could also be used as an effective diagnostic tool to identify precancerous cells. "The presence of DNA breaks in precancerous and cancer cells may turn o...

Scientists discover how Ebola virus infects cells

...on the mechanism Ebola virus uses to enter cells," notes NIAID Director Anthony S. Fauci, M.D. "These findings raise the possibility of a broad-spectrum antiviral therapy that could be effective against multiple hemorrhagic fever viruses." Senior author James M. Cunningham, M.D., of Brigham and Women's Ho...

Gladstone investigators discover how resting T cells avoid HIV infection

... during the process of T cell activation. However, notes Greene, scientists would first need to determine whether preserving the antiviral shield provided by small A3G in activated and dividing CD4 T-cells does not produce any deleterious effects. These could include the early death of these cells or the c...

Secret of smallpox's success may lead to bioterror cure

...it and attempts to mount a counter-attack. Jacobs notes that there have been clues to this property of the... don't even get sick -- the animals stay healthy," notes Jacobs. "The body reacts and it fights off both the mutant, and also the normal virus that normally...

Confocal imaging promises early detection of skin cancer

...s with our Regensburg partner,?says Dr Sheblee. He notes that confocal imaging has great potential for detecting skin cancers and expects significant take-up of the technology in the next five years. ...

MUHC scientists describe genetic resistance to rampant virus

...s is a new concept in natural disease resistance," notes Dr. Vidal. "Our research suggests there are many different mechanisms for fighting viruses; in the future we expect to discover additional resistant genotypes." CMV infects most of the world's organisms, including upwards of 80% of the human populat...

Grizzlies set to invade high Arctic?

...t I think that's no longer the case." Dr. England notes that the grizzly bear find is a highly visible example of important changes occurring in the Arctic. "The Arctic is very large and diverse, and this complex but exciting environment is just coming into focus for Canadians in general. It's now a mains...

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