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Tag: "journal" at biology news

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...orting in the June 30 edition of the peer-reviewed journal Nature, UCLA/Veterans Affairs neuroscientists report a developmental pattern in bottlenose dolphins and killer whales that is unique from other mammals, with calves of both species active 24 hours a day during their first month. The mother also has ...

Leprosy genome tells story of human migrations, French researchers report in Science

...itute in Paris, appears in the 13 May issue of the journal Science, published by AAAS, the nonprofit science society. The findings indicate that the world's existing leprosy infections are all caused by a single bacterial clone that has spread yet barely mutated for centuries. They also show that the diseas...

Research may provide new link between soft drinks and weight gain

... July 2005 issue of Obesity Research, the official journal of the North American Association for the Study of Obesity (NAASO). Consumption of sweetened foods and beverages containing sucrose and high-fructose corn syrup?particularly carbonated soft drinks and some juices and cereals--has been thought to be ...

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...uctivity of Aquatic Communities," published in the journal Ecological Applications, Relyea examined how a pond's entire community--25 species, including crustaceans, insects, snails, and tadpoles--responded to the addition of the manufacturers' recommended doses of two insecticides--Sevin® (carbaryl) and mal...

High fidelity keeps human DNA assembly line humming

... published in the May 13 edition of the scientific journal Molecular Cell. Behind the basic research is a story that melds exquisite nanotechnology in living systems and cutting-edge biochemistry and molecular biology with a system of checks and balances. "RNA synthesis is at the hub of human genetic contr...

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

...hose in need," says Zenilman, senior author of the journal article. "Though more people in developing countries are receiving therapy, growing from 400,000 in June 2004 to 700,000 in December 2004, it still amounts to only 4 percent of infected people in India, 5 percent in Ethiopia, and 7 percent in South ...

The first impact factor for PLoS Biology ?13.9

The open-access journal PLoS Biology has been assessed by Thomson ISI to h...e sciences. This is an outstanding statistic for a journal less than two years old, from a new publisher promoting a new business model that supports open acce...

Gene silencing technique offers new strategy for treating, curing disease

... two papers appearing in the online edition of the journal Nature Chemical Biology, Dr. Corey and his colleagues describe how they efficiently shut down gene expression in cultured cells by blocking the ability of chromosomal DNA to be copied into RNA and made into proteins. The studies, which Dr. Corey said...

Scientists discover odd-ball rodent

...ew species is described in the recent issue of the journal Systematics and Biodiversity by authors from WCS, The Natural History Museum in London, University of Vermont and WWF Thailand. Called Kha-Nyou by local people, the species was discovered by WCS researcher Dr. Robert Timmins in a hunter's market in ...

Ancient DNA helps clarify the origins of two extinct New World horse species

...ree, according to a new article in the open access journal PLoS Biology. In the paper, Jaco Weinstock, Alan Cooper, and colleagues use ancient DNA to argue that the Hippidion genus is younger than previously thought and that American stilt-legged horses were American endemics, not Asian emigres. Their analys...

UCLA cancer researchers shake loose hidden biomarker

...ver article of May 11 edition of the peer-reviewed journal Molecular Cancer Therapeutics, could have important implications for using immunotherapy to treat prostate cancer, said Ayyappan K. Rajasekaran, a Jonsson Cancer Center researcher and senior author of the article. The method discovered by the resear...

Natural tumor suppressor in body discovered by UCSD medical researchers

...sor is described in the April 1, 2005 issue of the journal Molecular Cell. The scientists demonstrated that PHLPP deletes a phosphate molecule, causing termination of cell-growth signaling by a protein called Akt that controls the balance between cell growth leading to cancer and cell death that prevents tum...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

In this week's journal Nature, scientists at the Salk Institute for Biological Studies report that they have solved one of the "holy grail" puzzles of developmental biology: the existence of a mechanism that insures that the exterior of our bodies is symmetrical while inne...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...rrent study, published in the April 1 issue of the journal Science, concludes that by 2030, smoke from wood fires used for cooking will cause about 10 million premature deaths among women and children in Africa. By 2050, according to the report, smoke from cooking fires will release about 7 billion tons of c...

Brain Scan Study of Smokers Reveals Signature of Craving

...The team reported its results in an article in the journal Neuropsychopharmacology that is now online and which will be published in print in a forthcoming issue. The research was supported by the National Institute on Drug Abuse. "Our results suggest that not all smokers are the same; they don't all respon...

Cancer drug slows poxvirus in mice

...or of the paper, published online this week in the journal Nature Medicine, is Daniel Kalman, Ph.D., of Emory University School of Medicine in Atlanta. Like all viruses, poxviruses co-opt various cellular molecules and processes to enter a cell, replicate and then spread to uninfected cells. Using lab-grown...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...blished in this week's online early edition of the journal Proceedings of the National Academy of Sciences. Until now, scientists had assumed, based on studies in cultured cells, that p53 had to be modified by attaching chemical groups to specific sites on the protein to function normally in the body. The n...

How exactly does the brain control breathing?

...and Dr. Richerson from Yale University, to use the journal as a forum to discuss the issue and attempt to resolve their differences in opinion. Both authors agree that the respiratory rhythm requires specialised nerve cells (central chemoreceptors) to power the rhythm, but the issue highly debated by Guyene...

Malaria mechanism revealed

... findings are reported in the July 29 issue of the journal Cell. Malaria causes approximately 400 million clinical cases and 2 million deaths annually, with more than 80% of deaths occurring among children. The disease is caused by mosquito-borne parasites of the genus Plasmodium (primarily Plasmodium falci...

Protein synthesis can be controlled by light, opening way for new scientific, medical applications

...synapses. The research was published today in the journal Chemistry & Biology. Coauthors on the paper are Schuman, Michael Goard, Girish Aakalu, Carlo Quinonez and Jamii St. Julien, all of the Howard Hughes Medical Institute and Division of Biology at the California Institute of Technology. Lesya Fedory...

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