Tag: "culture" at biology news
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...
Scientists streamline method for making key virus
...lecules that make the virus capsid or coat -- to a culture
of undifferentiated skin cells. "When the capsid ...h they can be assembled, is that is can be used to culture
any of the 100 or so subtypes of the papillomavirus as well as genetic mutants created in the lab. ...
For first time, brain cells generated in a dish
...l Academy of Sciences, researchers describe a cell culture
method that holds the promise of producing a limitless supply of a person's own brain cells to potentially heal disorders such as Parkinson's disease or epilepsy. "It's like an assembly line to manufacture and increase the number of brain cells," sai...
Mass production of human papillomavirus could lead to gains against cervical cancer
...produce a thousand times more infectious virus per culture
dish than they could using conventional methods. R... study of the virus, said Ahlquist. "The available culture
techniques limited the ability to study critical early stages of infection," said Ahlquist. "We coul...
'Jumping genes' contribute to the uniqueness of individual brains
...ened in vivo and couldn't be dismissed as a tissue culture
artifact." Transposable L1 elements, or "jumping genes" as they are often called, make up 17 percent of our genomic DNA but very little is known about them. Almost all of them are marooned at a permanent spot by mutations rendering them dysfunctional...
Scientists report tissue engineering success
...tly superior tissue development and the successful culture
of engineered blood vessels for all of the patients studied. Dr Niklason states: "Alternative sources of conduit are always needed in coronary and peripheral vascular surgery. Here, we have engineered blood vessels from vascular cells in elderly men....
UC San Diego undergraduates do cyberinfrastructure research in Asia, Australia
...ing that these students will better understand the culture
of their host sites," added the International Cent...ng junior Eric Wang was attracted to the different culture
in Japan, where he will spend the summer. "The idea of being able to do research in a whole new envi...
Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory
...ave to prove it was safe because, for example, the culture
process may cause genetic changes. For some men and women this would be the only route for producing sperm and eggs. It would not be reproductive cloning as fertilisation would involve only one set of gametes produced in this way and therefore a uniq...
World first: Scientists succeed in cloning human embryos from eggs matured in the lab
...Belgium, and his colleagues, matured GV oocytes in culture
in the laboratory for 44 hours, after which time 85% of the GV oocytes had developed into MII oocytes. From each of these, they removed the nuclear apparatus, which contained the chromosomes that held all the genetic information. Using conventional...
Self-correcting embryos could be an ethically acceptable source of embryonic stem cells
...s are capable of returning to normal when grown in culture
in the laboratory, according to new research prese...e third day of their development, and grew them in culture
to the blastocyst stage when the embryonic cells start to differentiate. They were checked on day fi...
New method of obtaining embryonic stem cells could reduce embryo wastage
...: "This showed that it was possible to isolate and culture
blastomeres that were capable of developing into a...is raises the possibility that it may be easier to culture
human blastomeres, isolated from an early stage embryo, instead of waiting for the blastocyst to dev...
Eggs from embryonic stem cells could benefit sterile women
...to structures containing eggs when maintained in a culture
containing foetal calf serum. However the result has not been able to be replicated. In response, Dr Orly Lacham-Kaplan from the Monash Immunology and Stem Cell Laboratories has developed a simple, repeatable system to support the development of ES c...
Imprinting disorders and ART world's largest study results are reassuring
...implicated. The problem with BWS could be in the culture
media, or it could simply be that the parents are naturally infertile because of a genetic abnormalities. "We are now planning to do a further study on the childhood eye cancer, retinoblastoma, where it is believed that imprinting is involved. Wha...
Increasing reproductive tourism in Europe is a 'safety valve' that promotes peaceful coexistence
...ice versa. "Moreover, there is no unified European culture
and no consensus on substantive human values. This implies that European decisions would have the same problems as national restrictive laws but on an even higher level. The main reason for leaving these decisions to national states is that reproduct...
Study: Harmless virus kills some cancers
...ential of AAV2, none allowed the AAV2 to remain in culture
long enough to see the effect that Meyers and his team observed. "One of the most compelling findings is that AAV2 appears to have no pathologic effects on healthy cells," Meyers said. "So many cancer therapies are as poisonous to healthy cells as t...
Researchers grow stem cells from human skin
...isolate single stem cells, which they then grew in culture
dishes in the laboratory. The scientists used hormones and growth factors to coax the stem cells into becoming fat, muscle and bone cells. When the differentiated cells were seeded onto three-dimensional molds and implanted in mice, they maintained ...
Cancer related gene p53 not regulated as indicated by previous tissue culture research
...nus instead of the normal version. Previous tissue culture
studies by several labs around the world indicated that tinkering with the tail end prevented the protein from being flagged for degradation or activation. Instead of accumulating in mouse cells and halting cell division in the genetically engineered...
Scientists construct a physical map of the Drosophila buzzatii genome
...otides long, and can be multiplied in a laboratory culture
to amplify the fly's DNA. The second step involved arranging the random fragments present in the library in the same order and position as they are in the intact chromosomes. This amounts to composing a puzzle with thousands of pieces. Two methods w...
$7.3 million NIH grant establishes Wellstone Muscular Dystrophy Research Center at the UI
...core that will serve as a national tissue and cell culture
resource for muscular dystrophy studies, provide diagnostic expertise for patients, and examine muscle biopsies from clinical trial participants to evaluate new treatments. Core C, directed by Yang and Roger Williamson, M.D., UI professor of obstetri...
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....
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