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Tag: "culture" at biology news

New technique rapidly detects illness-causing bacteria

...urce quickly. It may also help to analyze a throat culture swab, to tell if someone has an illness like strep throat. "We hope to see this technique commercialized, because it is very rapid compared to all the standard methods right now," said Nugen, the study's lead author. Nugen conducted his research in ...

Cultural norms not unique to human societies

...zee communities in Africa indeed reflect a form of culture and establishes another link between human and chi... unexpected, but equally important, result of this culture study, according to Dr. Horner. A few members of each group independently discovered the alternative...

Researchers create infectious hepatitis C virus in a test tube

...spects of the hepatitis C virus life cycle in cell culture has slowed research progress on this important hum...e and their colleagues named their infectious cell culture virus HCVcc. Already HCVcc is yielding new knowledge about HCV. In a separate set of experiments, th...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...involves incubating an infected sample in a tissue culture for five days and then using a fluorescent dye to ...ightness for hours. The image on the right shows a culture labeled with green fluorescent protein while the image on the left shows a culture labeled with red ...

Team of international scientists departs today to discover the unknown in China's Himalayan region

.... To further explore new opportunities for linking culture and environmental protection, Disney will research the legend of the yeti, a creature whose traditional role as "protector of the sacred" has been integral to preservation in this region. One of the world's hotspots, the Mountains of Southwest Chin...

UQ researcher tracking key to healing the brain

... He said at the moment, scientists rely on tissue culture methods to guess what is happening inside the body, but this new approach will mean they will be able to track the cells while they are working in the body, a major leap forward. "Defining the role and regulation of neural stem cells in the adult b...

Helping in a selfish world

...d state-of-the-art research facilities. McMaster's culture of innovation fosters a commitment to discovery and learning in teaching, research and scholarship. Based in Hamilton, the University has a student population of more than 23,000 and more than 112,000 alumni in 128 countries. ...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...ted the development, achieved in 1992, of suitable culture media (patented), with the attached proteins remov... 41-50. Brevets : Lemesre J.L. (1993). "Procédé de culture in vitro de différents stades parasitaires obtenus et applications biologiques". Brevet français, FR...

'Underground' tunnels discovered as means for communication between immune system cells

...tion between fairly distant cells. If instead of a culture dish we were talking about a large metropolitan ar...hey squirted a mixture of E. coli fragments into a culture dish, and, indeed, one to two minutes before the appearance of the thin membranes, there were bursts...

World-first technology enables study of ancient bacteria

...luding major new types, but we have been unable to culture them and this might be because we have not been able to keep them at the very high pressures which they need to survive," said Professor Parkes. The Manufacturing Engineering Centre in the School of Engineering has helped design and produce a high-p...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...vested easily from bone marrow, isolated, grown in culture and genetically engineered. To test that MSC subsequently used in these studies retained their phenotype after being cultured, the researchers routinely tested whether their characteristic potential to differentiate into fat and bone cells was preser...

Genetically modified maize not found in southern Mexico

...untain villages in the region. In a country whose culture and identity revolve heavily around maize, or corn ?the crop was first developed here thousands of years ago ?the thought of importing GM varieties that could contaminate native plants frightens many citizens. "The genetic diversity of native maize ...

Firefly protein lets researchers monitor molecule linked to cancer

...ns are hitting this exact molecular target in cell culture and laboratory animals," says senior investigator David Piwnica-Worms, M.D., Ph.D., professor of molecular biology and pharmacology and of radiology. Piwnica-Worms and lead author Shimon Gross, Ph.D., a postdoctoral fellow, measured light from the f...

Old drug shows new promise for Huntington's Disease

...tested the effect of Clioquinol on neurons in cell culture that contained a form of the mutant Huntington's gene. "We found that not only did cells look better and survive a bit longer when exposed to the drug, but they also seemed to make less of the toxic protein," observed Massa, who is also a clinical as...

Discarded placentas deliver researchers promising cells similar to embryonic stem cells

... cells choosing to spread out at the bottom of the culture dish thereby giving those cells just above them the best environment for replicating and for retaining their stem cell characteristics. With the addition of various growth factors, the authors report the amnion-derived cells could differentiate to b...

Human brain is still evolving

...s arose at roughly the same times as the origin of culture in human populations as well as the advent of agriculture and written language.The research team, which was led by Bruce T. Lahn, a Howard Hughes Medical Institute investigator at the University of Chicago, published its findings in two articles in t...

Hepatitis C complicated by morphine withdrawal

...e. His laboratory has previously shown using cell culture that morphine enhances virus replication and inhibits IFN-alpha (a natural anti-viral factor produced by immune, as well as host cells, and the only one approved in recombinant form for treating HCV infection). To further these results, his lab has ...

Modifications render carbon nanotubes nontoxic

... lead to the death of 50 percent of the cells in a culture within 48 hours. In the current study, CBEN researchers exposed skin cell cultures to varying doses of four types of water-soluble single-walled carbon nanotubes, or SWNTs. The four included pure, undecorated SWNTs suspended in soapy solution and th...

New antibody shows promise as cure for anthrax

...lls, rather than the more expensive mammalian cell culture now used to produce anthrax antibodies. Patterson, chair of the Department of Virology and Immunology at SFBR, adds, "A concern to national defense is that terrorists might design a strain of anthrax that is resistant to antibiotics, but this anti...

Study hints at role of stem cell genes in testicular, breast cancers

...ed by a sample of breast cancer cells grown in the culture dish and tissue from a Stage 3 breast tumor. Previously, the team had discovered that expression of the genes was elevated in two samples of seminomas (Stem Cells, March 2004). In the current study, they expanded their investigation, determining tha...

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