ScienceDaily Health Headlines
for Sunday, November 29, 2009
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'Glow-in-the-dark' red blood cells made from human stem cells (November 29, 2009) -- Stem cell scientists have modified a human embryonic stem cell (hESC) line to glow red when the stem cells become red blood cells. The modified hESC line, ErythRED, represents a major step forward to the eventual aim of generating mature, fully functional red blood cells from human embryonic stem cells. ... > full story
Forming new brain cells: Key regulatory peptide discovered (November 29, 2009) -- The generation of new nerve cells in the brain is regulated by a peptide known as C3a, which directly affects the stem cells' maturation into nerve cells and is also important for the migration of new nerve cells through the brain tissue. ... > full story
Measuring and modeling blood flow in malaria (November 29, 2009) -- When people have malaria, they are infected with Plasmodium parasites, which enter the body from the saliva of a mosquito, infect cells in the liver, and then spread to red blood cells. Inside the blood cells, the parasites replicate and also begin to expose adhesive proteins on the cell surface that change the physical nature of the cells in the bloodstream. ... > full story
Motivational 'women-only' cardiac rehab improves symptoms of depression (November 29, 2009) -- Women who participated in a motivational cardiac rehab program designed for women experienced less symptoms of depression. The positive impact of the women-centered program remained six months after the 12-week study ended. Other research shows that positive emotions in men and women may protect from heart disease. ... > full story
Biological basis of 'bacterial immune system' discovered (November 28, 2009) -- Scientists have discovered how the bacterial immune system works, and the finding could lead to new classes of targeted antibiotics, new tools to study gene function in microorganisms and more stable bacterial cultures used by food and biotechnology industries to make products such as yogurt and cheese. ... > full story
New device implanted by surgeons help paralyzed patients breathe easier (November 28, 2009) -- Physicians will soon begin implanting a new device designed to improve breathing in patients with upper spinal-cord injuries or other diseases that keep them from breathing independently. ... > full story
Bell's palsy: Study calls for rethink of cause and treatment (November 28, 2009) -- Drugs widely prescribed to treat facial paralysis in Bell's palsy are ineffective and are based on false notions of the cause of the condition, according to researchers. They say research must now focus on discovering other potential causes and treatments. ... > full story
Dispensing prescription drugs in 3-month supplies reduces drug costs by a third (November 28, 2009) -- Purchasing prescription drugs in a three-month supply rather than a one-month supply has long been regarded as a way to save money. New research quantifies the savings for the first time. ... > full story
Researchers fine-tune diffuse optical tomography for breast cancer screening (November 28, 2009) -- Researchers are working to make the physical pain and discomfort of mammograms a thing of the past, while allowing for diagnostic imaging eventually to be done in a home setting. ... > full story
Biologics for rheumatoid arthritis work, but which is best? (November 28, 2009) -- More studies that directly compare the effectiveness of different biologic drugs for rheumatoid arthritis are needed, say researchers who reviewed previous studies assessing the effectiveness of biologic disease-modifying drugs for treatment of RA and found that although all were very effective, there was little data on direct comparisons between the drugs that could help doctors decide which to prescribe. ... > full story
Talking to ourselves: How consumers navigate choices and inner conflict (November 28, 2009) -- From simple decisions like "Should I eat this brownie?" to bigger questions such as "Should my next car be a hybrid?" consumers are involved in an inner dialogue that reflects thoughts and perspectives of their different selves, according to the authors of a new study. ... > full story
Small hairy balls hide foul-tasting healthful enzymes (November 28, 2009) -- A Dutch researcher has discovered a new way to package enzymes by causing charged polymers to form a 'ball of hair' around them. Her approach significantly increases the utility of the enzymes. For example, healthy enzymes with a foul taste can be packaged in such a way that they are released in the stomach without being tasted. ... > full story
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