...medicine and health care news
Quantum rods and dots image cancer cells
March 17th, 2008
Brightly fluorescent quantum dots and quantum rods are quickly becoming important tools for identifying specific molecules and cells in living systems. Two new reports demonstrate some of the ways in which cancer researchers are using these nanoscale imaging agents. Read more
Quantum dots detect metastatic lesions
March 17th, 2008
By injecting quantum dots into tumors, investigators at Carnegie Mellon University have been able to image sentinel lymph nodes in animals using near-infrared light. These results could lead to a simple, non-invasive method for detecting metastasis. Read more
siRNA delivery into human T cells and primary cells with carbon-nanotube transporters
March 17th, 2008
Short pieces of RNA, known as small interfering RNA (siRNA), have the potential to become a new class of anticancer drugs if researchers can solve the problem of how to deliver these fragile molecules to cancer cells. Read more
Perfluorocarbon nanoparticles track living cells
March 16th, 2008
Stem cell therapy, primarily bone marrow transplantation, plays a key role in treating leukemia and other types of cancer. Read more
DNA 'cages' to deliver drugs
March 16th, 2008
By combining DNA macromolecules with polymers containing iron, molecular 'cages' can be made: porous structures capable of carrying and delivering drugs or DNA-fragments. Read more
NASA undersea mission to test space medicine concepts
March 15th, 2008
NASA will send a flight surgeon, two astronauts and a Cincinnati doctor under the ocean off the Florida coast May 7-18 to test space medicine concepts and moon-walking techniques. It is the first undersea mission to include a NASA flight surgeon. Read more
Dissecting secret formula of nectar
March 15th, 2008
The sugar-containing nectar secreted by plants and consumed by pollinators shares a number of similarities to fitness drinks, including ingredients such as amino acids and vitamins. In addition to these components, nectar can also contain secondary metabolites such as the alkaloid nicotine and other toxic compounds. Read more
Scientists alter electrical properties of cells inducing regeneration
March 14th, 2008
Scientists at Forsyth may have moved one step closer to regenerating human spinal cord tissue by artificially inducing a frog tadpole to re-grow its tail at a stage in its development when it is normally impossible. Using a variety of methods including a kind of gene therapy, the scientists altered the electrical properties of cells thus... Read more
New terms for describing gene products involved in microbial-host interactions
March 14th, 2008
An international group of scientists has announced a major expansion of a lingua franca used to describe the activities of genes in living organisms. Read more
British Government to ask public what they think of stem cell science
March 13th, 2008
Britain's Science and Innovation Minister Malcolm Wicks has announced that the UK's two major public funders of stem cell research will run a national public discussion about this cutting-edge area of science. Read more
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Chinese food therapy is a practice of healing using natural foods instead of medications.