ScienceDaily Health Headlines
for Sunday, August 8, 2010
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Key mechanism in brain's computation of sound location identified (August 7, 2010) -- Researchers have identified a mechanism the brain uses to help process sound localization. Their findings focus on how the brain computes the different arrival times of sound into each ear to estimate the location of its source. ... > full story
Newly discovered mechanism controls levels and efficacy of a marijuana-like substance in the brain (August 7, 2010) -- A newly discovered molecular mechanism helps control the amount and effectiveness of a substance that mimics an active ingredient in marijuana, but that is produced by the body's own nerve cells. Cannabinoid signaling systems are common throughout the body and affect a variety of functions. Developing new therapies that modulate these molecular communications might help patients with autoimmune or neurological disorders, including brain inflammation following a viral infections. Specifically targeted treatments would have medicinal benefits without mind-altering side effects. ... > full story
Beautiful women face discrimination in certain jobs, study finds (August 7, 2010) -- New research shows that beautiful women are discriminated against when applying for "masculine" jobs or when looks don't matter. ... > full story
Human embryonic stem cells purified in new, rapid technique (August 7, 2010) -- Researchers are reporting the first success in very rapidly purifying one type of embryonic stem cell from a mix of many different types of embryonic stem cells in the culture dish. The technique, which avoids the need to genetically alter the cells to distinguish them, is a key advance, the researchers say, for obtaining the appropriate cells for repairing specific damaged tissues. ... > full story
Tattooing linked to higher risk of hepatitis C, study finds (August 7, 2010) -- Youth, prison inmates and individuals with multiple tattoos that cover large parts of their bodies are at higher risk of contracting hepatitis C and other blood-borne diseases, according to a new study. ... > full story
Economic status, genetics together influence psychopathic traits (August 7, 2010) -- Researchers studying the genetic roots of antisocial behavior report that children with one variant of a serotonin transporter gene are more likely to exhibit psychopathic traits if they also grow up poor. Children were more likely to score high on tests for psychopathic traits if they had both low socioeconomic status and the variant gene. ... > full story
Encouraging data on preventing Crohn's disease recurrence (August 6, 2010) -- Biological agents may play an important role in maintaining remission in Crohn's disease, according to two new studies. ... > full story
How cells make specific interactions during development (August 6, 2010) -- Researchers have shed new light on how cells make specific interactions during development -- in the hope of one day learning more about human developmental disorders. ... > full story
Image of new antibiotic in action opens up new opportunities to combat antibacterial resistance (August 6, 2010) -- Detailed pictures reveal how a new type of experimental antibiotic can kill bacteria that are already resistant to existing treatments. The findings could ultimately help scientists to develop new antibiotics to tackle the bacteria responsible for many hospital and community-acquired infections. ... > full story
Newts' ability to regenerate tissue replicated in mouse cells (August 6, 2010) -- Scientists have taken a big step toward being able to confer a regenerative capacity on mammalian muscle cells; they accomplished this feat in experiments with laboratory mice in which they blocked the expression of just two tumor-suppressing proteins. The finding may move us closer to future regenerative therapies in humans -- surprisingly, by sending us shimmying back down the evolutionary tree. ... > full story
Novel bee venom derivative forms a nanoparticle 'smart bomb' to target cancer cells (August 6, 2010) -- The next time you are stung by a bee, here's some consolation: a toxic protein in bee venom, when altered, significantly improves the effectiveness liposome-encapsulated drugs or dyes, such as those already used to treat or diagnose cancer. This research shows how modified melittin may revolutionize treatments for cancer and perhaps other conditions, such as arthritis, cardiovascular disease, and serious infections. ... > full story
Non-human primate study generates information relevant to HIV-1 vaccine strategies (August 6, 2010) -- Monkeys repeatedly immunized with a particular form the HIV-1 envelope glycoprotein generated antibodies capable of neutralizing diverse strains of HIV-1, according to a paper published online in the Journal of Experimental Medicine on August 2. ... > full story
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