| Skin cells reveal DNA's genetic mosaic Posted: 18 Nov 2012 11:15 AM PST The prevailing wisdom has been that every cell in the body contains identical DNA. However, a new study of stem cells derived from the skin has found that genetic variations are widespread in the body's tissues, a finding with profound implications for genetic screening.  |
| Leap forward in brain-controlled computer cursors: New algorithm greatly improves speed and accuracy Posted: 18 Nov 2012 11:15 AM PST Researchers have designed the fastest, most accurate algorithm yet for brain-implantable prosthetic systems that can help disabled people maneuver computer cursors with their thoughts. The algorithm's speed, accuracy and natural movement approach those of a real arm, and the system avoids the long-term performance degradations of earlier technologies.  |
| Breakthrough nanoparticle halts multiple sclerosis in mice, offers hope for other immune-related diseases Posted: 18 Nov 2012 11:15 AM PST In a breakthrough for nanotechnology and multiple sclerosis (MS), a biodegradable nanoparticle delivers an antigen that tricks the immune system and halts MS in mice. The approach, the first that doesn't suppress the immune system, is being tested in a clinical trial for MS patients, but with white blood cells delivering the antigen. The nanoparticle is an easier, cheaper option and can be used in other immune-related diseases including Type 1 diabetes, food and airway allergies.  |
| Flame retardants used in foam upholstered furniture and other products linked to neurodevelopmental delays in children Posted: 15 Nov 2012 10:31 AM PST A new study adds to the health concerns over flame retardants widely used in foam upholstered furniture. Researchers have found that children exposed to PBDEs in the womb and in early childhood had deficits in attention, cognition and fine motor skills at ages five and seven.  |
