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Tag: "lead" at biology news

Genome of yellow fever/dengue fever mosquito sequenced

...idate authenticity of this gene." The TE team, lead by the Tu laboratory, uncovered and described more...ion between mosquitoes and pathogens, and thus may lead to controls of transmission of disease, Tu said. Control might take the form of a genetic control, s...

Gene thought to assist chemo may help cancer thrive

... cells. If p53 is repairing cancer cells, that may lead to cancer recurrence. "We think p53 may actually help some cancer cells make a comeback,?he said. "Based on our results, we propose that p53 may help repair some of the cancer cells damaged by chemotherapy leading to tumor recurrence and explaini...

Executable biology -- Computer science sheds light on animal development

...ation of a variety of biological systems, explains lead EPFL researcher and biologist Dr. Jasmin Fisher. "Once a robust model has been built of a particular system, it can be used to get a global, dynamic picture of how the system responds to a variation ?such as a drug or a genetic mutation. Preliminary ...

Fast and slow -- How the spinal cord controls the speed of movement

...t was associated with speed of movement. He is the lead author on the study. The researchers worked with 4 millimeter-long larval zebrafish (Danio rerio) because they are transparent and researchers can see their cells. Fetcho and his colleagues injected the fishes?spinal cords with a fluorescent dye,...

Biodegradable microspheres deliver time release vaccines, stimulate different immune response

...ust aren't effective," says Jenny Wilson-Welder, a lead researcher on the study. Wilson-Welder and her ...sed to deliver time-released vaccines. This could lead to the development of single-dose vaccines for diseases that currently require booster innoculations...

Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants

...ding the stress responses of plants will, in time, lead to new generations of plants that are, among other things, more drought- and stress-tolerant. That is why a study that appeared in the internationally recognized journal, "Science," is considered an important step forward in the understanding of ho...

Leukemia drug turns mini-molecules up, cancer genes down

...ene. (Oncogenes are normal genes that when mutated lead to cancer.) Researchers at the Ohio State University Comprehensive Cancer Center led the study, which was published in a recent issue of the journal Oncogene. "The findings are important because they tell us that some miRNAs switch off genes ...

Deconstructing brain wiring, one neuron at a time

...Ian Wickersham, Ph.D., postdoctoral researcher and lead author on the project. With the critical gene deleted from its genome, the virus is marooned inside a cell, unable to spread beyond it. However, supplying the missing gene in that same cell allows the virus to spread to cells that are directly co...

UCLA study uncovers clues for why Graves' disease attacks the eyes

... T-cells are the generals of the immune system and lead the attack in any immune response, we assumed that they played a key role in this antibody’s development." The team tested GD patients?blood for the antibody and compared their findings to samples from healthy people, with about 100 subjects in ...

Improved predictions of warming-induced extinctions sought

...ous simplifying assumptions in the models that can lead to biases. The authors make eight recommendations for improving forecasts of extinction rates under global warming. The recommendations cover a wide range, from clarifying the definition of biodiversity to improving existing models and developing b...

MIT's ocean model captures diversity of underwater forests

... Earth, Atmospheric and Planetary Sciences (EAPS), lead author on the paper and creator of the model. "The fact that the phytoplankton that emerge in our model are analogous to the real phytoplankton gives us confidence in the value of our approach." One of Follows' collaborators, Penny Chisholm, the L...

Discovery of new cave millipedes casts light on Arizona cave ecology

...nt. Voyles is also the cave resource management lead for Grand Canyon-Parashant National Monument. His work has led to the development of cave resource management plans and the ultimate protection of numerous caves in northwestern Arizona and southwestern Utah. ...

Fish extinctions alter critical nutrients in water, study shows

... the fastest declines in nutrient recycling," said lead author Peter McIntyre, a postdoctoral researcher at Wright State University who was a graduate student in Cornell's Department of Ecology and Evolutionary Biology when he conducted the study. "Fishermen are targeting relatively large and abundant spe...

Leeches ferry infection among newts

... outbreaks in amphibians. The findings could also lead to a better understanding of diseases affecting hu...r for Infectious Disease Dynamics, and the study's lead author. Early infections in the newts appear as clusters of small dark dots under the skin, whic...

Genome sequencing reveals key to viable ethanol production

...ays Wu, "but I believe this is a part of what will lead to the revolution." This research, also authored by Wu’s graduate students Michael Newcomb and Chun-Yu Chen, is funded by the U. S. Department of Energy....

In young mice, gregariousness seems to reside in the genes

...a UW-Madison neuroscience graduate student and the lead author of the new study, which was conducted using two different strains of young mice, one gregarious in nature, the other much less so. "Their motivation to engage others varies with their genetic background; it appears to affect how young mice app...

Rare cell prevents rampant brain activity

...happens only on exceptional occasions, when it can lead to epileptic fits. Scientists at Karolinska Institutet have now uncovered a new mechanism controlling how the brain keeps its neuronal activity in check. The human brain consists of around a hundred million nerve cells linked together by around ten...

Scientists see DNA get 'sunburned' for the first time

...believe that chronic damage creates mutations that lead to diseases such as skin cancer. For this study, the chemists used a technique called transient absorption to observe the DNA damage. Transient absorption is based on the idea that molecules absorb light at specific wavelengths, and it allows rese...

Rapid response was crucial to containing the 1918 flu pandemic

...ight have fared the same as Philadelphia, says the lead author on the first study, Richard Hatchett, M.D., an associate director for emergency preparedness at NIAID. Despite the fact that these cities had dramatically different outcomes early on, all the cities in the survey ultimately experienced signifi...

Investigating the measles virus as a tool to kill multiple myeloma

...s,?says Angela Dispenzieri, M.D., hematologist and lead researcher on the multiple myeloma clinical trial in the measles virus investigation. “We are very hopeful that this will be a step toward helping our patients.? Mayo Clinic Cancer Center is the only institution in the world currently pursuing usin...

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