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Tag: "hold" at biology news

Air travel and pandemic flu

... is a serious influenza outbreak will do little to hold back the spread of the infection, according to the findings of a study conducted at the UK Health Protection Agency and published in the journal PLoS Medicine. Sometimes a new type of influeza virus appears that causes an illness that is more serio...

Fire ants: Their true story told by the scientist who loves them

...s heat to warm its residents. The tunnels below it hold anywhere from a few dozen to several hundred thousand of the highly territorial critters (Tschinkel has counted them but says it's not easy). A mature colony can encompass approximately 300 feet of underground foraging tunnels ?about 20,000 ant body-...

Vaccine shown effective against chancroid

...tal ulcers, is rare in the United States but takes hold in communities that have little or no access to health care, such as in Africa. Recent studies show that genital ulcer diseases such as chancroid can enhance HIV transmission three- to 10-fold. "There is considerable evidence that genital ulcers are...

What controls stickiness of 'smart' chromosomal glue

... Gluelike protein complexes called cohesins, which hold the members of a chromosome pair together until just the right moment during cell division, are central to both processes. Bound together by cohesins, chromosome pairs must organize themselves in preparation for cell division before they can be relea...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

...he enormous opportunities that transgenic chickens hold as a therapeutics production system," said Robert Kay, Ph.D. Origen Therapeutics president and chief executive officer. "We believe a transgenic chicken system offers a number of advantages over either plant or other transgenic animal systems for pro...

Triple threat polymer captures and releases

...erve as capillaries to take in guest molecules and hold them inside the material,," said Wooley, a member of Washington University's Center for Materials Innovation, (CMI) which enables collaborators from across the Washington University campus to make basic and applied advances in materials research, to...

In drug design, a loose fit may be best bet

... effective its cellular signaling. If the findings hold true for similar hormone-receptor reactions, they could help change the way that drug therapies are designed for a host of health problems, from smell and taste disorders to heart disease, asthma, migraine, and pain. The study is published in the May...

Speeding the search for elusive chromosomal errors

...NA within a sample being tested. These microarrays hold more than 100,000 DNA oligonucleotides, which allow researchers to rapidly analyze a person's whole genome -- the entire complement of DNA in a cell nucleus. "These microarrays provide more rapid and precise results than karyotyping, and offer as mu...

WWF captures first-ever photo of wild rhino on Borneo

...bah and the forests of the "Heart of Borneo" still hold huge tracts of continuous natural forests, which are some of the most biologically diverse habitats on Earth, with high numbers of unique animal and plant species. It is one of only two places in the world –Indonesia's Sumatra island is the other ?wh...

Study shows pine bark naturally decreases severe chronic venous insufficiency

...the study. "Eventually, some of the valves cannot hold the weight of excessive blood, which then adds more pressure onto the next valve further downwards. Ultimately, the inability to prevent the liquid in the blood from seeping into the tissue is what causes edema, a common condition of CVI." Resea...

Surprise finding for stretched DNA

...Newton is about a trillionth the force required to hold an apple against Earth's gravity.) Beyond the 30 picoNewton threshold, the DNA double helix did begin to unwind in accordance with predictions. "DNA's helical structure implies that twisting and stretching should be coupled, hence the prediction th...

Pathway toward gene silencing described in plants

...RNAs). Along comes ARGONAUTE4 (AGO4), which grabs hold of the siRNAs while also binding to NRPD1b, the largest subunit of an alternative form of RNA Polymerase IV, Pol IVb. The AGO4-siRNA-NRPD1b complex is then thought to leave the nucleolus, acquire the second-largest Pol IV subunit, NRPD2, which serves...

Basic work on E. coli identifies two new keys to regulation of bacterial gene expression

...hen test whether their findings in model organisms hold true in other species, says Gourse, who studies a strain of E. coli that while harmless, is closely related to disease-causing varieties like E. coli 0157:H7. "Basic research in E. coli is very important," says Gourse. "Much of what we know about ...

New research examines genetics of successful aging

...dentifying such genetic and behavioral factors may hold promise for better understanding the aging process and perhaps one day enriching or extending the lives of other individuals." ...

Molecular DNA switch found to be the same for all life

... Andres Leschziner and Berger. Nogales and Berger hold appointments with Berkeley Lab's Life Science and Physical Biosciences Divisions, respectively, and with UC Berkeley's Molecular and Cell Biology Department, in which Botchan is a professor. Nogales is also an investigator with the Howard Hughes Med...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...only solve a profound scientific mystery, but also hold great promise for preventing and curing blinding eye disease and illnesses such as cancer, in which blood vessels grow abnormally and uncontrollably, since this phenomenon, present in the cornea normally, can be used therapeutically in other tissues....

Injection may prevent infertility in men receiving cancer chemotherapy

...eight or tissue analysis results. "These results hold out much promise for fertility preservation in men undergoing cancer treatments", he said. "We now intend to study the mechanism of protection, which is still unclear. Our work suggests that in addition to the direct damage caused by the treatment...

CHAVI announces international search for genes affecting HIV response

...re. "We want to find out why some people naturally hold the virus down to almost undetectable levels while others lose control of it quickly." The newly organized group, called EuroCHAVI, will recruit 600 patients from nine cohorts. "This will be is the largest cohort assembled for large-scale analysis o...

New tiger report release: Tiger habitat down from just a decade ago

... a blueprint for scientists and the countries that hold the key for the tigers' survival." ...

Rice scientists unveil 'nanoegg'

...ole moment, there is no 'handle' for light to grab hold of," Nordlander said. "In symmetric nanoshells, most of the light energy is lost to these 'dark modes.' With symmetry breaking, we are able to make these dark modes bright by providing dipole moments for more of the incoming light." ...

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