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Tag: "expert" at biology news

Researchers find protein that silences genes

...t histones. A collaboration with mass spectrometry expert Michael Gross, Ph.D., Washington University professor of chemistry, helped define the precise locations of the acetyl groups that HDA6 can remove, down to which acetylated amino acids are involved. "The bottom line is that HDA6 has very broad spec...

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

... of the University of Nottingham, who is a leading expert in HIV and SIV evolution. "What these viruses have in common is a vpu gene, not found in other SIVs, and so it's tempting to speculate that the presence of vpu is somehow causally related to the change in Nef function," Sharp added. The findings ...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...t St. Jude. Webster is an internationally renowned expert on avian influenza viruses and is senior author of the report in JID. Cross-reactive immunity is the protection that a virus vaccine confers against not only the same virus, but also against variants of the original virus. "Such cross-protection wo...

H5N1 vaccine could be basis for life-saving stockpile

...t St. Jude. Webster is an internationally renowned expert on avian influenza viruses and is senior author of the report in JID. Cross-reactive immunity is the protection that a virus vaccine confers against not only the same virus, but also against variants of the original virus. "Such cross-protection wo...

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

...lar Therapeutics Gabriel Lopez-Berestein, M.D., an expert in liposomal therapeutics, cite at least two factors for the success of the anti-FAK liposome. "This particle is so small, it has no problem getting through the tumor's vasculature and into the tumor," Lopez-Berestein says. The FAK-targeting lipo...

Primates take weather into account when searching for fruits

...ntly available food such as ripening fruit. *For expert commentary on this work, be sure to see the related Dispatch in this issue of Current Biology from Dr. Michael Platt: "Animal Cognition: Monkey Meteorology." ...

When the going gets tough, slime molds start synthesizing

...y, Ph.D., a Dictyostelium cellular differentiation expert and groupleader at the MRC. "We wrote a paper and sent a version to Rob Kay and said, 'You don't know us, but here's what we do. Biochemically we have identified the machinery that makes the essential precursor for the bioactive DIF-1 molecule.' " ...

Five surprising facts about starvation that could change the international agenda

... was also the chair of a World Health Organization expert advisory panel on household food and nutrition security. ...

Scientists aim to thwart use of flu as bioweapon

...ure by Nobel Prize winner Peter Doherty, Ph.D., an expert on how flu spurs the immune system to defend itself against the infection. Doherty's technical talk on the roles of specific types of T-cells in influenza will be at 1:30 p.m. Friday, June 23, at the Rochester Marriott Airport Hotel on West Ridge Roa...

Pest control research leads to pain control discovery

...he finding, hailed by a noted inflammatory disease expert "as the most important discovery in inflammation in more than a decade," may also reduce side effects associated with the painkiller, Vioxx. Lead author Kara Schmelzer, a post-doctoral researcher in principal investigator Bruce Hammock's lab, teste...

Malaria, potato famine pathogen share surprising trait

...s to consider such a drug," said Kamoun, who is an expert on the Phytophthora group of pathogens. He conducted the study with lead author Kasturi Haldar, of Northwestern, and with colleagues from both Ohio State and Northwestern. Each year, malaria kills more than one million people ?mostly young African c...

Even fish don't swim well when they're young!

...nt's arms. Surely, you think, fish must be born as expert swimmers. Actually, fish larvae are pretty feeble when it comes to an efficient mode of swimming called 'burst-and-coast'. Dr Ulrike Müller from Wageningen University studies how fish swim: "Fish larvae are the most critical life history stage. In ma...

New weapon in battle against osteoporosis

...on the scientists working with Bonn's senior brain expert Professor Dr. Andreas Zimmer have made genetic modifications in mice in order to switch off their CB2 receptor. Dr. Karsak summarises what happened: "The animals gradually lost their stabilising trabeculae. We found in these mice that the number of o...

Psychotropic drug prescriptions for teens surge 250 percent over 7 year period

... said lead author Professor Cindy Parks Thomas, an expert on prescription drug trends, at Brandeis University's Heller School for Social Policy and Management. "There is an alarming increase in prescribing these drugs to teens, and the reasons for this trend need further scrutiny," said Thomas. "Our study ...

UF scientists trace origin of shark's electric sense

...University of California, San Diego, and a leading expert in vertebrate neurobiology. "For the first time, someone has shown which molecules may be responsible for guiding the development of the receptors of the lateral line system. I think this will hold true and is a very important finding. But I'm skepti...

Berkeley researchers lay groundwork for cell version of DNA chip

...nd the UC Berkeley Chemistry Department, and is an expert in linking organic molecules to nanoparticles to create hybrid structures. Bertozzi, who also holds a joint appointment with Berkeley Lab and UC Berkeley, is a leading authority on cell surface interactions. She is also a member of the Howard Hughes...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...ned dragon five colors." An internationally known expert on the development and evolution of the vertebrate...zed research by Erickson –?who also is known as an expert in dinosaur and crocodilian dentition, or bite force –?has helped to generate interest in the scienc...

Polymer aids in blood clotting, pointing way to new treatment

...coagulation." In collaboration with Morrissey, an expert on blood clotting, Docampo and a team of U. of I. graduate and postdoctoral students tested the effect of adding polyphosphate to platelet-poor plasma in a series of in-vitro experiments to see if it enhanced blood clotting. The results were dramatic...

Darkness unveils vital metabolic fuel switch between sugar and fat

...on? "These animals dig deep burrows," said Lee, an expert in circadian rhythms. "They are constantly in the dark. Why not darkness as a switch?" Mice do not hibernate but they can slip into a similar short-term state of torpor. Lee and colleagues started with a microarray analysis of gene expression in ...

World's pledge to halve hunger by 2015 looks like empty promise

...and no action -- according to a Cornell University expert on world hunger. If business proceeds as usual, just as many people will be hungry in the world -- 800 million -- in 2015 as there were 16 years ago, said Per Pinstrup-Andersen, Cornell's Babcock Professor of Food, Nutrition and Public Policy and th...

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