Tag: "multiplication" at biology news
The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
... several badly distorted chromosomes, tracking the multiplication
or exchange of genetic material is often impossible with conventional black-and-white banding. Chromosome banding was first developed in the early 1970s, when it was observed that each human chromosome portrayed a characteristic pattern of bands wh...
Bowman Gray Scientists Find Novel Way To Block AIDS Virus
...w familiar steps in the development of AIDSfollow: multiplication
of the virus in the infected cells and the killing... based anti-HIV-1 approaches can only inhibitvirus multiplication
after virus infection. This anti-HIV-1 intrakine targets a cellular chemokine receptor, ratherthan H...
Molecular Circuit Breaker Can Prevent Runaway Cell Growth
...two overlapping genes that ordinarilyrestrain cell multiplication
explains why the INK4a-ARF gene pair ismissing in many human cancers. Without the growth inhibitory effects of thisgene pair, cells are more likely to grow uncontrollably. Now, the investigators are refining their understanding of how ARF works. A...
Scientists grow blood-producing stem cells outside the body
...entists plan to begin studying this blood stemcell multiplication
technique in baboons. Human culture studies are under way.If these studies are successful, trials in humans may follow. One reason the connection between stem cell growth and TPO has goneundiscovered is that a complex mix of cells appears to ...
New findings on genetically modified plants and foods
...cal characterization of the active compounds, mass multiplication
and fortification -- is expected to lead to more sterile, consistent formulations of these popular herbal medicines. (L. M. Welter, USC School of Medicine, Los Angeles, Calif., AGFD 74, Monday, March 27, 4:05 p.m.; E. E. Hood, ProdiGene, College Stat...
Team finds cell gene that helps viruses multiply
...oss or mutation of this gene severely inhibits multiplication
of the virus." Finding the gene may help s...s cellular gene near the very beginning of the multiplication
process to selectively amplify its own genes." There are significant potential therapeut...
Chickens succumbing to virus formerly avoided by vaccination
... acquired several genes that are not vital for its multiplication
but provide a good strategy for prolonged survival, he said. Since fowlpox is among the largest of viruses more than 200 genes encoding for essential and non-essential proteins it is not surprising to find spontaneous, natural genetic engineering o...
UCI biologist proposes trimming some branches
...Sciences ( http://www.pnas.org ). "An unnecessary multiplication
of categories for classifying our Hominid ancestors distorts our evolutionary biology," Ayala said. "Our proposal provides a clearer overview of human evolution, so that the trees do not obscure the forest or -- a better analogy in this case -- so th...
Genetic clues may show which women face breast cancer risk from HRT
... menopause, hormone levels plummet and breast cell multiplication
slows. Hormone replacement therapy in postmenopausal women introduces hormones present in very small amounts in such women. That means additional breast cell multiplication--and potentially greater breast cancer risk....
Major new finding on genetics of Parkinson's disease zeroes in on activity of alpha synuclein
... 31, 2003, issue of Science , shows that abnormal multiplication
of the -synuclein gene can cause the disease. T...ers found four copies of the -synuclein gene. This multiplication
of the -synuclein gene (an abnormal triplication of three genes on one chromosome 4 and the normal o...
Skin cancer breakthrough
...ne encodes a protein that activates the growth and multiplication
of cells. Recent studies have shown that mutations in BRAF, which cause the protein to become more active, are commonly found in melanomas and moles. The variants that have been identified in this study do not have any effects on the activity of the ...
Gene plays major role in formation of stem cells and cancer
...h revealed that the BMI1 gene is essential for the multiplication
of the stem cells in the cerebellum. Further it was found that overexpression of the BMI1 gene can result in an enormous growth of these stem cells. For example, overexpression of the BMI1 gene was found in 8 of the 12 medulloblastomas investigated. ...
New research suggests early diet may play key role in protecting against childhood leukaemia
...also shown that curcumin irreversibly inhibits the multiplication
of leukaemia cells in cell culture. Nagabhusan says these results are confirmed in humans. Dr Marilyn Kwan of the University of California, Berkeley will be presenting the results of another study looking at the effects of food on the risk of leuka...
Images of 'tail' of protein needed for cell multiplication suggest anticancer drug targets
... the workshop itself, turning off the unrestrained multiplication
of cancer cells. The study also shows that a slight change in a structure common among many enzymes performing similar jobs can create a new enzyme with a unique activity. The St. Jude researchers report that the stabilizing influence of Ubc12's pro...