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Tag: "professor" at biology news

Scientists see DNA get 'sunburned' for the first time

...cule by adding energy, said Bern Kohler, associate professor of chemistry at Ohio State. Some exited energy states last a long time, and others a short time. The energy often decays away harmlessly, but occasionally it triggers a chemical reaction that alters the DNA's molecular structure. Previously, scien...

Bones in motion: Brown scientists to create new 3-D X-ray system

...d Elizabeth Brainerd, the Brown University biology professor overseeing development of the new system. "Imagine...esy, Thomas Roberts and Sharon Swartz. Brainerd, a professor of medical science in Brown's Department of Ecology and Evolutionary Biology, leads the team. The...

Natural antibiotics yield secrets to atom-level imaging technique

...pplications, said Ramamoorthy, who is an associate professor of chemistry and an associate research scientist in the Biophysics Research Division. While researchers have identified hundreds of AMPs in recent years, they're still puzzling over exactly how the peptides wipe out bacteria and other microbes. Un...

Studies force new view on biology of flavonoids

...ty to function as an antioxidant," said Balz Frei, professor and director of the Linus Pauling Institute. "The body sees them as foreign compounds and modifies them for rapid excretion in the urine and bile." Flavonoids are polyphenolic compounds with some common characteristics that are widely found in fru...

Researchers develop marker that identifies energy-producing centers in nerve cells

...tigator, Krish Chandrasekaran, Ph.D., an assistant professor in the Department of Anesthesiology at the Univers...senior author, Tibor Kristian, Ph.D., an assistant professor in the Department of Anesthesiology at the University of Maryland School of Medicine, says there are...

Scientists identify pancreatic cancer stem cells

... lead author, Diane M. Simeone, M.D., an associate professor of surgery and molecular and integrative physiology. "The cells we isolated are quite different from 99 percent of the millions of other cells in a human pancreatic tumor, and we think that, based on some preliminary research, standard treatments ...

Stanford-led study closes in on genes that may predispose some people to severe depression

...f researchers working under Douglas Levinson, MD, professor of psychiatry and behavioral sciences at the Stanford University School of Medicine. "This finding has a very good chance of leading to a discovery of a gene that could yield important information about why some people develop depression," said...

Noise echoes in cell communications

... hearing aid technology. Dawei Hong, an assistant professor of computer science, Joseph Martin, a professor of biology, and William Saidel, an associate professor of biology, are working together to explain t...

BMI not accurate indicator of body fat

...the MSU Department of Kinesiology and an assistant professor of kinesiology at Saginaw Valley. "Whether you're ...ong college-age people," said Jim Pivarnik, an MSU professor of kinesiology and epidemiology. "It really doesn't do a good job of saying how fat a person really ...

UCI scientists reconstruct migration of avian flu virus

...n control it more efficiently," said Walter Fitch, professor of ecology and evolutionary biology in the School of Biological Sciences at UCI and co-author of the study. "With a road map of where the strain has migrated, you're more likely to isolate the strain that you should be using to make the vaccine." ...

Jefferson scientists find rabies-based vaccine could be effective against HIV

...an AIDS-like disease. Matthias Schnell, Ph.D., professor of microbiology and immunology at Jefferson Medical College of Thomas Jefferson University, and his co-workers tested the effects of inserting two different viral proteins into the rabies virus genome, and using such viruses-based vaccines in prevent...

Gut research yields new anti-cancer approach

...Katherine L. Schaefer, Ph.D., a research assistant professor within the Department of Medicine, Gastroenterolog...am, led by Lawrence J. Saubermann, M.D., associate professor of Medicine at the Medical Center, realized they had come across a potentially new therapeutic effec...

A 'traffic light' for neurons means 'go' for improving brain research

...r Award program." Karl Deisseroth, an assistant professor of bioengineering and of psychiatry who led the research group that authored the paper, received the NIH award in 2005. "This research provides a tool that we didn't have before, which is precise on-or-off control over specific neural cells in liv...

Red flag for repetitive stress injuries identified for first time in humans

...where before there was none," said Barr, associate professor of physical therapy at Temple's College of Health ...ent can be avoided," said Barbe, also an associate professor of physical therapy. Employers and workers know the dramatic impact of RMIs, which cause pain, lo...

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

... Bing Ren, the study's senior author and assistant professor at UCSD's Department of Cellular and Molecular Medicine, the method is widely applicable and its unbiased approach is likely to yield new information on gene expression and how it is altered in disease. "The beauty of this approach is that it utilize...

Glucose triggers brain cell death in rats after hypoglycemic coma

...or at least 60 minutes," says Swanson, who is also professor and vice-chair of neurology at the University of California, San Francisco. "It was only when we gave them glucose to reverse the hypoglycemia that the oxidative stress occurred. This was a real surprise." The researchers then discovered that oxi...

UC Davis researchers use heated nanoprobes to destroy breast cancer cells in mice

...inical testing in patients," said Sally DeNardo, a professor of internal medicine and radiology at UC Davis and lead author of the study. Many researchers have studied heat as a potential treatment for cancer, but the difficulty of confining heat within the tumor and predicting an effective heat dose has li...

Scientists identify molecular cause for one form of deafness

... mutants that cause deafness," said Gerard Wong, a professor of materials science and engineering, of physics, ...ssociate Kirstin Purdy and Northwestern University professor of cell and molecular biology James R. Bartles ?report their findings in a paper accepted for public...

Researchers design pulsed mircrojet system to deliver protein drugs without pain or bruising

...thereby mitigating pain," says Samir Mitragotri, a professor of chemical engineering at UCSB and a lead author of the paper. The system was designed as an alternative to the macro-scale systems that had been causing pain and bruising. "We realized that we had to find a way to stop the jets from going deep into...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...ht as a means of conserving energy," says Edwards, professor of organismic and evolutionary biology in Harvard's Faculty of Arts and Sciences and Alexander Agassiz Professor of Zoology and curator of ornithology in Harvard's Museum of Comparative Zoology. "In fact, our work shows these streamlined genomes aros...

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