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Tag: "researcher" at biology news

Antarctic icebergs -- Hotspots of ocean life

...scientists need access to all the data,” explained researcher John Helly of the San Diego Supercomputer Center (SDSC) at UC San Diego who managed the data. “And we need to reliably harvest this information at sea, thousands of miles from our shore-based labs, and to preserve it as a unique snapshot of these ice...

A first -- Hebrew University scientist observes brain cell development in 'real time'

For the first time anywhere, a researcher at the Hebrew University of Jerusalem has succeeded in observing in vivo the generation of neurons in the brain of a mammal. Dr. Adi Mizrahi of the Department of Neurobiology at the Alexander Silberman Institute of Life Sciences at the Hebrew Unive...

How plague-causing bacteria disarm host defense

...d lead author Lorena Navarro, Ph.D., post-doctoral researcher in the lab of the study's principle investigator, Jack E. Dixon, Ph.D., professor of Pharmacology and Cellular and Molecular Medicine at the UCSD School of Medicine. Identifying this new target is the first step to developing effective strategie...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...nconsistent results and new approaches are needed, researcher said. Gene therapy has been attempted in the past, but older, invasive techniques required that therapeutic genes be injected directly into nerve cells. Strong pain relief resulted, but in some cases the injections caused nerve damage. "Our public...

Avian influenza survivors' antibodies effective at neutralising H5N1 strain

...n mice," says Dr Cameron Simmons, a Wellcome Trust researcher at the Oxford University Clinical Research Unit, Vietnam. "We are optimistic that these antibodies, if delivered at the right time and at the right amount, could also provide a clinical benefit to humans with H5N1 infections." "In particular, we f...

Philandering female felines forgo fidelity

...etween breeding seasons,” said Dr. Sarah Durant, a researcher with the Wildlife Conservation Society/Tanzania Cheetah Conservation Program and project leader. “In fact, we now know many of the fathers exist outside the park and study area. This is a finding which gives us a critical insight into cheetah ecology...

Moths mimic sounds to survive

...t make sounds, were gobbled up by the bats. The researcher trained free-flying bats to hunt moths in view of two high-speed infrared video cameras to record predator-prey interactions that occur in fractions of a second. He also recorded the sounds emitted from each moth, as well as the sounds made by the b...

Human stem cell treatment restores motor function in paralyzed rats

...myelin-forming cells,” said co-author Karl Johe, a researcher at Neuralstem, the company that manufactures the hSSCs used in the study. “In this study, we succeeded at reconstructing the neural circuitry, which had not been done before.” The researchers believe that the therapy may eventually be proven even ...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

...l Research Institute in Panama. Alicia Hermosillo, researcher at the Universidad de Guadalajara in Mexico, and Angel Valdes, assistant curator of Malacology at the Natural History Museum of Los Angeles County, describe five newly discovered species of nudibranchs, two of which Hermosillo collected in Panama, in...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...picoplankton," said Brian Palenik, lead author and researcher at the Scripps Institution of Oceanography, University of California, San Diego. "From an applied perspective, we are learning some of the tricks nature has employed to ‘engineer?an extremely small eukaryote to thrive in nature—which may well find...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...failure." Montminy’s team, led by postdoctoral researcher Rebecca Berdeaux, Ph.D., first became interested in the enzyme when they observed that mice engineered to have a defect in a molecular switch, called cAMP responsive element binding protein (CREB), had hunched backs, muscle wasting, and other signs o...

Machine preservation may promote more organ sharing

...ross the country," said Robert Stratta, M.D., lead researcher of the study, which is reported in the May issue of the Journal of the American College of Surgeons. In addition, Stratta said, the pump can be used to project the kidney’s initial function ?allowing for more appropriate matching of donor organs a...

Why do oysters choose to live where they could be eaten?

...ronmental Science Chesapeake Biological Laboratory researcher Dr. Mario Tamburri. "Our research shows that oyste...er of their species." Tamburri worked with UCLA researcher Drs. Richard K. Zimmer and Cheryl Ann Zimmer to examine this apparent paradox. The group set out to ...

Cancer patients monitor fatigue in real time

...leen Hacker, clinical assistant professor and lead researcher of the study, or to average their symptom experiences. "Their mood may affect their recall. They may have been experiencing pain in addition to fatigue, and that affects how they remember the fatigue experience," she said. In Hacker's study, pa...

Traumas like Sept. 11 make brains more reactive to fear

...anzel, Cornell M.S. '99, Ph.D. '02, a postdoctoral researcher in human development at Cornell. "Up until now, there has been very little evidence of that." Using functional magnetic resonance imaging to see how people's brains responded to photographs of fearful versus calm faces, the scans of 11 people who w...

How to steer a moving cell

... date, according to Yingchun Wang, a post-graduate researcher in the Klemke lab. ...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

...n Molecular Psychiatry by Amber E. Baum, PhD, lead researcher Francis J. McMahon, MD, and colleagues. "This is an example of how advances in genetics research feed into practical applications. This research would not have been possible a very few years ago. We now have a new molecular target scientists can...

Molecule that destroys bone also protects it, new research shows

... a medical student and doctoral candidate who is a researcher working in Gaffen’s lab, is first author. Gaffen and colleagues conducted the research in mice bred to have no receptors for IL-17. Other researchers had shown previously, using rats and mice as animal models, that blocking the receptor for IL-1...

Egyptians, not Greeks were true fathers of medicine

...sis to soothe and heal skin conditions." Fellow researcher Dr Ryan Metcalfe is now developing genetic techniques to investigate the medicinal plants of ancient Egypt. He has designed his research to determine which modern species the ancient botanical samples are most related to. "This may allow us to det...

LIAI scientists make important finding on cytomegalovirus transmission

... of the Ware and Croft team parallel those of LIAI researcher Matthias von Herrath, M.D., who last year announced that he had successfully eliminated a chronic virus infection in mice by blocking the IL-10 receptor. "Dr. von Herrath’s findings suggested that the IL-10 molecule plays a pretty important role in ...

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