News tagged with expression
'Self-seeding' of cancer cells may play a critical role in tumor progression
Dec 24, 2009 |
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Cancer progression is commonly thought of as a process involving the growth of a primary tumor followed by metastasis, in which cancer cells leave the primary tumor and spread to distant organs. A new study by researchers ...
Seeing how evolutionary mechanisms yield biological diversity
Dec 22, 2009 |
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An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.
Researchers find reproductive germ cells survive and thrive in transplants, even among species
Dec 15, 2009 |
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Reproductive researchers from the University of Pennsylvania and The Children's Hospital of Philadelphia have succeeded in isolating and transplanting pure populations of the immature cells that enable male ...
Transcription factors guide differences in human and chimp brain function
Dec 07, 2009 |
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Humans share at least 97 percent of their genes with chimpanzees, but, as a new study of transcription factors makes clear, what you have in your genome may be less important than how you use it.
Why Some Monkeys Don't Get AIDS
Medicine & Health / HIV & AIDS
Dec 03, 2009 |
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(PhysOrg.com) -- Two studies published this month in the Journal of Clinical Investigation provide a significant advance in understanding how some species of monkeys such as sooty mangabeys and African green ...
Adding a genetic supertool: Genome Analyzer fuels research dreams and tomorrow's cures
Dec 22, 2009 |
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To identify the hemophilia mutation that affected Queen Victoria and her European relatives, scientific detectives used a cutting-edge "deep sequencing tool." Able to trace rare genetic disease mutations, the tool can turn ...
Protein that represses genes may play role in cell growth
Dec 21, 2009 |
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(PhysOrg.com) -- A Cornell study shows the protein not only activates some genes involved in the regulation of cell growth and signaling, but also may play a role in preventing cancers by inhibiting cell proliferation.
Researchers show 'trigger' to stem cell differentiation
Dec 10, 2009 |
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A gene which is essential for stem cells' capabilities to become any cell type has been identified by researchers at the Hebrew University of Jerusalem and the University of California, San Francisco.
Study identifies genetic predeterminants for diabetes in African-Americans
Dec 09, 2009 |
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For years, scientists have tried to determine the basis for discrepancies between race and the predisposition for development of diseases such as type II diabetes and cardiovascular disease. Could factors ...
Scientists discover genetic pattern that indicates early-stage lung cancer
Dec 01, 2009 |
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Wistar Institute researchers and collaborators from the University of Pennsylvania and New York University have identified immune system markers in the blood which indicate early-stage lung tumors in people at high risk for ...
Gene therapy makes mice breath easier
Dec 21, 2009 |
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Researchers from Boston University School of Medicine (BUSM) have discovered a new gene therapy that may prevent the progression of emphysema. The study, which appears on-line in the Journal of Clinical Investigation, descri ...
Study shows nearly 1/3 of human genome is involved in gingivitis
Dec 07, 2009 |
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Gingivitis, which may affect more than one-half of the U.S. adult population, is a condition commonly attributed to lapses in simple oral hygiene habits. However, a new study shows that development and reversal of gingivitis ...
