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Tag: "results" at biology news

Genomic Analysis Uncovers New Targets for HIV Vaccine

... gene variants are known as polymorphisms. "These results not only approximately double our understanding of... is not thought to be turned off by HIV-1. The new results suggest that for some individuals at least HLA-C is involved in controlling HIV-1. Since HIV-1 appea...

One species, many genomes

...ax Planck Institute for Developmental Biology. The results were surprising: The extent of the genetic differences far exceeds the expectations for such a streamlined genome, as the scientists write in this week’s edition of Science magazine. Arabidopsis plants from different geographical origins differ in...

Nicotine rush hinges on sugar in neurons

... that allow signals to pass between neurons. The results reveal an important role for the sugar molecules in such proteins. “Our studies fill a major gap in the field and set a new paradigm,” said Lin Chen, associate professor of molecular and computational biology at USC. Many existing theories, which...

Agent slows aging in mice

...Michigan scientist Richard A. Miller reports early results from a mouse study his lab and two others are cond...or studies typically have been too small and their results hard to confirm in subsequent studies. “The National Institute on Aging decided to fund grants at th...

Enzyme delivered in smaller package protects cells from radiation damage

...erm consequences of therapeutic irradiation. These results are being presented at the 10th annual meeting of ...the esophagus from chemoradiotherapy damage, these results suggest that minicircle DNA containing the human MnSOD transgene confers undiminished radioprotectio...

Pregnant mom's exposure to flu vaccine kick-starts fetal immune system

...mately 40% of cord blood specimens examined. These results and further data reported in the study establish that B and T cell responses to antigens occur in utero following maternal vaccination against influenza, supporting the theory that the human neonatal immune system is not deficient or incompetent but,...

Math that powers spam filters used to understand how brain learns to move our muscles

...el, Shadmehr says, almost precisely duplicates the results of experiments that tested the ability of monkeys ...in adapting its movements matched the experimental results of the monkeys almost perfectly. “We found that this Bayesian model can explain almost all of the ph...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...t could potentially be inherited by offspring. The results of their study are published in the June 1 issue of Cancer Research, a journal of the American Association for Cancer Research. “Here we are looking at male germline mutations, which are mutations in the DNA of sperm. If inherited, these mutation...

Old memory traces in brain may trigger chronic pain

...s had chronic pain from a healed limb injury.) The results indicated the animals’ emotional suffering decreased much more than their physical pain. While the physical pain appeared to be reduced 30 percent – their emotional suffering completely disappeared. Rat are nocturnal animals that prefer to be in...

Gene therapy delivery of nerve growth factors reverses erectile dysfunction in animal model

...associated with damage to the cavernous nerve that results from surgery for prostate cancer. Even if a patient receives a nerve-sparing procedure during surgery, recovery from ED after radical prostatectomy may take a long time. In this study, which was led by Joseph C. Glorioso, III, Ph.D., chair of the...

Researchers track how spores break out of dormant state

...ork of nanometer-wide peptidoglycan fibers. “These results show that dynamic AFM is a promising tool to investigate the formation and evolution of the bacterial cell wall,” Malkin said....

Simulations unravel outer membrane transport mechanism

...rotein at which the force was applied. To view the results of the simulation, please go to: http://www.life.u...he link below the image of the system to watch the results of the simulation.) A second simulation exerted a force near the center of gravity of the luminal...

A new plant-bacterial symbiotic mechanism promising for crop applications

...ack zones” comparable with wound areas. The set of results obtained from subsequent work, seeking to identify the genes involved in producing the unknown signal molecule that plays the role of Nod factor, prompted the team’s hypothesis that a molecule similar to a plant hormone (4), cytokinin, could act in t...

Research team identifies new Alzheimer's gene

...iated with other genes, including APOE4. The study results appear in the June 7 issue of the prestigious peer-reviewed journal, Neuron. Alzheimer’s disease is the most common form of disabling memory and thinking problems in older people. The progressive neurological disorder afflicts an estimated 5 million...

Dirty snow may warm Arctic as much as greenhouse gases

...der believes policymakers could use these research results to develop regulations to mitigate global warming. Limiting industrial soot emissions and switching to cleaner-burning fuels would leave snow brighter, he says. New snow falls each year, and if it contained fewer impurities, the ground would brighten...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...spewing many new parasites into the blood. A fever results from the infection, and this is followed by repeated cycles of mounting parasitic reproduction within red blood cells and accompanying fever. During red blood cell infection, P. falciparum degrades the hemoglobin in the red cell, producing a toxic by...

Pesticides choke pathway for nature to produce nitrogen for crops

...ns between crops and soil bacteria. The disruption results in lower yields or significantly delayed growth. In a paper appearing online this week ahead of the regular publication by the Proceedings of the National Academy of Sciences (PNAS), the five-member team reports that agrichemicals bind to and bloc...

In mice, drug protects against diabetes and atherosclerosis

...rugs for humans, Hotamisligil described the animal results as a long-sought success after a decade of intense...ll-molecule, oral compound. In turn, they add, the results suggest that targeting aP2 "can lead to a new class of powerful therapeutic agents to prevent and tr...

Columbine flowers develop long nectar spurs in response to pollinators

...ed by the National Science Foundation (NSF). Their results appear in this week's issue of the journal Nature. Darwin once proposed a co-evolutionary "race" to explain how natural selection might account for the evolution of very long nectar spurs in flowers, said Hodges. "In Darwin's race, plants with the...

Ancient DNA traces the woolly mammoth's disappearance

...two lineages died out. “In combination with the results on other species, a picture is emerging of extinct...fts twenty-five to fifty thousand years ago. Those results came as a surprise, the researchers said, because scientists tended to think that the major environm...

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