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Tag: "online" at biology news

Migratory songbirds have a specialized night-vision brain area

...ublished their findings May 23, 2005, in the early online edition of the Proceedings of the National Academy of Sciences. The collaboration was led by Henrik Mouritsen of the University of Oldenberg in Germany and Erich Jarvis of the Duke University Medical Center. Other co-authors were Gesa Feenders and Mi...

Oldest fossil human protein ever sequenced

...ch will be published the week of March 7-11 in the online early edition of Proceedings of the National Academy of Sciences (PNAS). "This research opens up the possibility of getting detailed protein information from past human populations, to make inferences about the evolution of human diet and physiology...

Signs of aging: Scientists evaluate genes associated with longevity

...licated in the aging process. Their results appear online today in the journal Genome Research. Led by Dr. Angela Brooks-Wilson, Senior Scientist at the BC Cancer Agency's Genome Sciences Centre, and Dr. Donald Riddle, Professor of Biology at the University of Missouri, the team prepared SAGE (serial analy...

Cellular Defects in Premature Aging Disease are Reversible

...versible, this study, appearing in Nature Medicine online on March 6, 2005, brings scientists one step closer to understanding this devastating childhood disease and might provide insights into the normal aging process. HGPS is a rare inherited disease affecting about one in eight million children. While a...

Gladstone investigators discover how resting T cells avoid HIV infection

... virus. The discovery, reported on April 13 in the online version of Nature, could open the door to an entirely new strategy for preventing the spread of HIV infection in the body's cells, according to the senior author of the study, Gladstone Institute of Virology and Immunology Director Warner C. Greene, ...

Of mice and men's (and women's) contraceptives

...d women. They report their findings in this week's online edition of the Proceedings of the National Academy of Sciences. "Not many proteins are expressed in both male and female germ lines that are specific only to the germ line," says Hecht. Germ line refers to the group of cells that give rise to either...

Scientists discover how Ebola virus infects cells

... (NIH). The researchers, whose paper is published online today in Science Express, identified two cellular ...ecessary for infection. Science Express. Published online April 14, 2005. DOI: 10.1126/science.1110656. ...

UCSD medical/bioengineering reseachers show titanium debris satobtage artificial joints

...oint replacements, according to research published online in Proceedings of the National Academy of Sciences by researchers at the University of California, San Diego (UCSD) School of Medicine and the Jacobs School of Engineering. The team demonstrated that titanium implants are safe in large blocks, but at...

Stanford gut check shows diversity of intestinal ecosystem

... lead author of the study published in this week's online edition of Science Express. "But even with this large sequencing project, which produced orders of magnitude more sequence data than had been generated in the past, we are not completely there yet. This is just the tip of the iceberg." Eckburg works...

Finding hidden invaders in a Hawaiian rain forest

... study is published in the March 7-11, 2005, early online edition of the Proceedings of the National Academy of Sciences. The new methods are exciting because they detect effects of biological invasions on ecosystems, not just the presence of an invader. Islands like Hawaii are vulnerable to biological inv...

Scientists generate patient-specific stem cells, Science study says

... (Science 12 March 2004; 303: 1669-1674; published online 12 February 2004.) In their new paper, Science author Woo Suk Hwang from Seoul National University in Seoul, Korea and colleagues replaced the nuclei from donated oocytes with nuclei from skin cells from male and female patients, ranging in age from...

SuperLigands - a database of ligand structures derived from the Protein Data Bank

... (Science 12 March 2004; 303: 1669-1674; published online 12 February 2004.) In their new paper, Science author Woo Suk Hwang from Seoul National University in Seoul, Korea and colleagues replaced the nuclei from donated oocytes with nuclei from skin cells from male and female patients, ranging in age from...

Mouse with designer liver has enhanced glucose tolerance, insulin response

...ble to the scientific community by advance posting online at the journal's website on April 10th. The liver plays a major role in the uptake of glucose from the bloodstream, its storage, and regulation. Insulin resistance in the liver is a crucial factor in the development of hyperglycemia and hypertriglyc...

Thai spice helps cut blood sugar swings

...ys intestinal glucose absorption in rats," appears online and in the June issue of the American Journal of Physiology-Gastrointestinal and Liver Physiology, published by the American Physiological Society. The research was conducted by Peter Y. Wielinga, Renate E. Wachters-Hagedoorn, Brenda Bouter, Theo H. ...

Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans

...lic Library of Science-Biology, which is available online on March 1. Researchers studying portions of the genome containing 'retroelements,' also known as junk DNA, found many copies of a gene sequence in the chimp and gorilla genome that didn't appear anywhere in the human genome. They translated that ge...

Mother birds increase progesterone to hatch females

...l and the lead author of the study that was posted online recently in The Royal Society's Biology Letters (Vol. 1, 2005). "Most investigators have looked primarily at testosterone, but we decided to look at progesterone, the major hormone produced by the female bird's preovulatory follicle." To test the in...

15-year hunt finds cause of pseudothalidomide syndrome

...scovery, which is reported in the April 10 advance online section of Nature Genetics, proves that genes behind very rare inherited diseases can now be found, offering excellent opportunities to strengthen understanding of craniofacial and limb development, health and disease beyond the rare disease itself, ...

Characterizing Skin Cancer by Microarrays

...of Sciences. Founded in 1914, PNAS publishes daily online and weekly in print. The preceding highlights are not intended to substitute for articles as sources of information. The articles in PNAS report original research by independent authors and do not necessarily represent the views of the National Acade...

Microarrays as phenotype

...aylor College of Medicine in a report that appears online today in the journal Nature Genetics. "Microarray data are good phenotypes to determine the order of genes and are a good surrogate measure of cell status," said Dr. Gad Shaulsky, associate professor of molecular and human genetics at BCM. Microarr...

Researchers find gene that may be at root of potato blight

...be the gene, called Avr3a, in a study that appears online in the early edition of the Proceedings of the National Academy of Sciences. Researchers call Avr3a an avirulence gene. This gene is the first avirulence gene identified from the plant pathogen that causes late blight, a devastating disease that can...

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