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Tag: "large" at biology news

Marburg haemorrhagic fever in Angola update

...s strain involved, from 53% to 88%. The only other large outbreak of Marburg, in the Democratic Republic of Congo from 1998 through 2000, had a case fatality of 83%. Two factors make the rapid detection of outbreaks of Marburg haemorrhagic fever difficult: the extreme rarity of this disease and its simila...

Researchers rein in regulatory RNAs

... to form double-stranded RNA (dsRNA) molecules. A large proportion of these antisense RNAs represent non-coding RNAs. Thus, the researchers expect that these results will lead to a better understanding of roles of non-coding RNAs in gene regulation. ...

Nanoparticles offer new hope for detection and treatment

...ost untreatable because by the time the tumors are large enough to detect, it's too late," Lanza says. "Wit...ee the smallest melanoma tumors when they are just large enough to begin new blood vessel formation. Plus, we should be able to deliver chemotherapeutic drug...

Strongest proof yet found for prion hypothesis

... higher rate, PMCA made it possible to produce the large quantities of prion protein necessary for the success of the experiments and opened the door to further TSE studies. According to Soto, it should also soon facilitate creating a much-needed blood test for prions, which would greatly improve current s...

Researchers uncover sequence of major rice pathogen

...by a fungus to cause disease. The genome encodes a large and diverse set of secreted proteins, including th...ptors, several new virulence-associated genes, and large suites of enzymes involved in secondary metabolism. Consistent with a role in fungal pathogenesis, t...

Researchers make gains in understanding antibiotic resistance

...e RNA, near the peptidyltransferase center, of the large subunit of the ribosome. The ribosome is the molec...y to do high-resolution structural analyses of the large ribosomal subunits bound to a number of the MLSBK antibiotics. In this analytical technique, intense...

Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis

...and platelets has now been discovered to depend in large part on a single protein called Mcl-1. This finding, from an investigator at St. Jude Children's Research Hospital, is published in the February 18 issue of Science. Mcl-1 blocks the biochemical cascade of reactions that trigger apoptosis ("cell sui...

Super predators and mass extinctions

...r the effects of limited living spaces shared by a large number of different species. A. Lipowski Phys. Rev. E 71, 052902 (2005), 20 May 2005 http://link.aps.org/abstract/PRE/v71/e052902 ...

Infants With Rare Genetic Disease Saved by Cord Blood Stem Cells

... cost to the child, their family and to society at large is enormous when one considers the burden of caring for a severely disabled child," said Joanne Kurtzberg, senior author of the study. "It's simply impossible to put a price on a child's life." Kurtzberg pioneered the use of umbilical cord blood fro...

Canadian youth 4th highest in international obesity study

...reased. "This does not mean that eating sweets in large quantities is recommended for young people," says Dr. Janssen, pointing out that the frequency of candy eating, rather than total amount consumed, was surveyed. While difficult to explain, the dietary results only underline the importance of focusing...

NASA study finds snow melt causes large ocean plant blooms

...Somalia, Yemen and Oman. According to Goes, while large blooms of phytoplankton can enhance fisheries, exceptionally large blooms could be detrimental to the ecosystem. Increases in phytoplankton amounts can lead to oxygen ...

Small species back-up giant marsupial climate change extinction claim

...e. "Other younger sections have a mixture of both large and small species that are habitat generalists or are species found in open areas, suggesting the landscape was evolving towards open grassland. "By the latest Pleistocene species dependent on wetter conditions disappear from the fossil record while...

Growth in biomass could put US on road to energy independence

... a co-author of the report. "We wanted to know how large a role biomass could play, whether the United States has the land resources and whether such a plan would be economically viable." Looking at just forestland and agricultural land, the two largest potential biomass sources, the study found potential...

Human Cells Filmed Instantly Messaging for First Time

... a co-author of the report. "We wanted to know how large a role biomass could play, whether the United States has the land resources and whether such a plan would be economically viable." Looking at just forestland and agricultural land, the two largest potential biomass sources, the study found potential...

Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells

...hampered because researchers were not able to grow large numbers of these immune cells in the laboratory, a...they encountered leukemic cells. In order to grow large populations of NK cells, the team started with samples of blood containing a variety of different im...

Leprosy microbes lead scientists to immune discovery

...osed the cells to a component of mycobacteria. The large white blood cells known as monocytes rapidly differentiated into the two distinct cell types, forming the body's emergency response to the detection of foreign bacteria. One category of defensive cells, macrophages, seek out and engulf the infectious...

Different microarray systems more alike than previously thought

...atforms can agree rather well, and that there is a large lab effect that accounts for why others thought comparisons revealed inconsistencies." "This is good news for many people," said Forrest Spencer, Ph.D., associate professor at Johns Hopkins' McKusick-Nathans Institute of Genetic Medicine. "Given app...

Global analysis of membrane proteins

...ane proteins that the bacterium can manufacture in large amounts, and those that it has difficulties to mak...n, e.g., drug development who often need access to large amounts of purified membrane proteins. Large-scale projects where scientists from different fields ...

Duke engineers develop new 3-D cardiac imaging probe

... sharp image, Smith said. And because the image is large enough to encompass the whole volume of the heart, fewer "pictures" need to be taken. This may shorten patient time in clinics, he said. ...

Roche clinical trial registry and results database launched

...30 medicines, on a product by product level from a large number of global and local trials, will take approximately a year. Roche will also continue to contribute information to established databases (i.e. www.clinicaltrials.gov) Information that can be found in the electronic database Starting with Fuzeo...

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