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Tag: "cut" at biology news

Buckyballs boost antibody's chemotherapy payload

...er cells can become drug resistant, and we hope to cut down on the possibility of their escaping treatment by attacking them with more than one kind of drug at a time." Researchers have long dreamed of using antibodies like ZME-018 to better target chemotherapy drugs like Taxol, and M. D. Anderson's Mic...

Fish virus in Northeast spreading to other fish species

... the virus. Once available, the new technique will cut the turnaround for confirmation to three to five days. Groocock said the high number of dead fish reported recently may be due to the increased presence of vacationers on the lakes in summer, as well as the increased awareness since reports of morta...

Spinal cord bridge bypasses injury to restore mobility

...r said the medical community also assumed that the cut axon tips died when they hit the scar wall. In prior research in his lab by his graduate student, Tom, it was discovered that axons are alive and continue to attempt to grow for years. Silver describes them as "trucks stuck in mud going no where." ...

Fatty spheres loaded with siRNA shrink ovarian cancer tumors in preclinical trial

...e number of small blood vessels feeding the tumor, cut the percentage of proliferating tumor cells and increased cell suicide among cancer cells. Sood and Professor of Molecular Therapeutics Gabriel Lopez-Berestein, M.D., an expert in liposomal therapeutics, cite at least two factors for the succes...

Agriculture and tropical conservation: rethinking old ideas

...that it's the big, rich landowners who come in and cut all the trees down and turn the land into cattle pastures. So the standard litany doesn't ring true to them." Vandermeer and Perfecto reviewed studies of biodiversity in the Atlantic coast rainforest of Brazil, a region that is unusual in having a...

Beekeepers work hard for the honey, despite changing tupelo forest

...n project. The dumping of the dredged material has cut off many tupelo trees from their source of fresh water. Upstream water diversion also has lessened the flooding needed for a healthy tupelo forest. Exotic pests are taking their toll, and beekeepers throughout Florida are losing between 30 percent ...

HIV-1's high virulence might be an accident of evolution

... "Heightened immune activation is the only clear cut difference between pathogenic and non-pathogenic infections with the immunodeficiency viruses," Kirchhoff added. "The observed difference in Nef function may provide--for the first time--a mechanism to explain why many monkey species naturally infect...

Salk and Stanford teams join forces to reveal two paths of neurodegeneration

...." Thinking this could be age-related, McLaughlin cut the same axons in newborn Wlds mice and found that... development, but that it did slow degeneration in cut axons ?just like in mice. Hoopfer explains that an early hypothesis was that "the axon degeneratio...

Acidity in the brain could hold the key to stroke treatment

...used when part of the blood supply to the brain is cut off. This causes acidity in the brain to build up, leading to damage. CT scans are currently used to detect bleeding, swelling and tumours in the brain, but the visibility of soft tissue is very limited, making damage difficult to detect. Professor...

Mapping the protein world

...tal data automatically and very accurately. It has cut down the time necessary to create structural models from weeks to minutes. This grant will allow the scientists to explore new concepts of model-building and enlarge the scope of data that the software can handle. ARP/wARP deals very well with high...

Pitt phage hunter takes on tuberculosis

... and simple control of the disease, but also would cut down on the development of drug-resistant organisms." ...

Snakes' virtual glasses, leopard spots and all-optical transistors

... and inconsistencies between graders, and severely cut back on the numbers of students contesting grades. While standardized test questions for exams like the SATs and GREs undergo rigorous evaluations, the Illinois study focused on tests designed by instructors with little or no formal training in writi...

UCLA study of community health project shows how group dynamics affect fitness, eating habits

...ud a lunchtime workout rather than criticizing the cut of the sweat suit. Ponder an organizational culture that encourages walking the stairs instead of riding the elevator. A UCLA-evaluated study of a demonstration project led by Community Health Councils, Inc. (CHC) in Los Angeles shows how incorpora...

Pollutant haze heats the Arctic

...a potato cooks faster in a microwave oven if it is cut into smaller pieces. "Same amount of potato, but more efficient cooking, because more of the interior of the potato is exposed to the penetrating microwave radiation," Garrett says. ...

Cutting calories slightly can reduce aging damage

... has shown a more drastic 20 percent to 40 percent cut in calories slows aging damage. The UF findings indicate even small reductions in calories could have big effects on health and shed light on the molecular process responsible for the phenomenon, which until now has been poorly understood. "This fin...

Protein's role in regulating cell death sets direction for cancer research

...the case of nerve cells that have been temporarily cut off from their oxygen supply because of a stroke, or damaged by amyloid deposits, this might seem like a bad thing that could contribute to neurodegenerative disease," says Dr. Greer who produced the study with Yinfei Tan, Nathalie Dourdin, Chao Wu, ...

Fire ants: Their true story told by the scientist who loves them

... the familiar dirt mound around which smart humans cut a wide swath; it's actually a solarium that collects heat to warm its residents. The tunnels below it hold anywhere from a few dozen to several hundred thousand of the highly territorial critters (Tschinkel has counted them but says it's not easy). A...

Study defines effective microbicide design for HIV/AIDS prevention

...ould further improve such microbicides' ability to cut the rate of HIV spread, the researchers said. The researchers now are conducting studies to experimentally measure the diffusion of viral particles through various delivery vehicles. They also are collaborating with other researchers on developing ...

Striking the right balance between excitation and inhibition

...stem works is illustrated by what happens when you cut your finger," Goulding explains. "Initially it hurts a lot, but the pain then eases. One of the reasons that this happens is because inhibitory interneurons in the dorsal spinal cord dampen down their excitatory counterparts, thus dialing down the p...

Biotech cotton provides same yield with fewer pesticides

...onal insecticide applications on the non-Bt fields cut down on the damage from whiteflies and western tarnished plant bugs. To see what factors affected insect biodiversity in the cotton fields, the researchers used a type of statistical analysis called path analysis. Factors that affected biodiversity...

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