...medicine and health care news
Researchers replace organ in mice using 'single-parent' stem cells
March 22nd, 2008
Researchers at the University of Pennsylvania School of Veterinary Medicine have derived uniparental embryonic stem cells - created from a single donor's eggs or two sperm - and, for the first time, successfully used them to repopulate a damaged organ with healthy cells in adult mice. Read more
Scientists discover vulnerable area on HIV that could lead to development of HIV/AIDS vaccine
March 22nd, 2008
Scientists on Wednesday announced they had identified a vulnerable area on HIV that might be susceptible to antibodies and could prevent the virus from infecting human cells, Reuters Health reports. The findings are published in the Feb. 15 issue of the journal Nature. Read more
Scientists label cells with magnetic nanoparticles
March 21st, 2008
Investigators at the German Cancer Research Center have developed silica-coated iron oxide nanoparticles that allow for cell tracking in a live animal using magnetic resonance imaging (MRI). Read more
Nano printing technique produces model membranes
March 21st, 2008
An international team of investigators based in the United States and Germany has modified the nanoscale printing technique known as dip-pen nanolithography to create large numbers of model cell membranes. Read more
All types of carbon nanotubes penetrate wide variety of cell membranes
March 20th, 2008
Over the past two years, researchers have demonstrated repeatedly that certain types of carbon nanotubes are among the most effective materials known for transporting proteins, genes, and drug molecules across the cell membrane. Read more
Cell-based bone tissue engineering
March 20th, 2008
In an article in PLoS Medicine, Gert Meijer (University Medical Centre Utrecht, The Netherlands) and colleagues discuss what kind of progress there has been in restoring the function of diseased or damaged bone by bone tissue regeneration. Read more
Nanoparticles advance photodynamic therapy to kill tumor cells
March 19th, 2008
Photodynamic therapy (PDT) is a powerful approach for destroying tumors, one that uses light and a light-sensitive chemical to rapidly kill cells. Read more
Nanoparticles rely on 'velcro effect' to target tumor cells
March 19th, 2008
One of the basic tenets of targeted nanoparticle drug delivery is putting multiple targeting molecules on a nanoparticle surface will improve the ability of nanoparticles to stick to their targeted cell and deliver their drug cargos to the appropriate diseased cell. Read more
siRNA delivery into human T cells and primary cells with carbon-nanotube transporters
March 18th, 2008
A promising approach to gene therapy involves short DNA fragments (interfering RNA) that bind to specific genes and block their "translation" into the corresponding, disease-related protein. Read more
Entire genetic blueprints of more than 2,000 human and avian influenza viruses completed and made public
March 18th, 2008
The Influenza Genome Sequencing Project, funded by the National Institute of Allergy and Infectious Diseases (NIAID), announced today that it has achieved a major milestone. Read more
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Chinese food therapy is a practice of healing using natural foods instead of medications.