ScienceDaily: Health & Medicine News

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• How viruses evolve, and in some cases, become deadly
• Visual nudge improves accuracy of mammogram readings
• Family history of psychiatric disorders shapes intellectual interests, study suggests
• New findings on aging pediatric bruises
• Leukemia cells are 'bad to the bone', research finds
• Rap music powers rhythmic action of medical sensor
• Newer radiation therapy technology improves patients' quality of life, research finds
• Scientists link evolved, mutated gene module to syndromic autism
• Obesity and pain linked, study of one million Americans shows
• Rotational motion of cells plays a critical role in their normal development, researchers find
• Scientists map one of life's molecular mysteries: Visualisation of the molecular gateway across and into cellular membranes
• Genetic screens bring new hope for tackling sleeping sickness
• Shoulder pain from using your iPad? Don't use it on your lap

How viruses evolve, and in some cases, become deadly Posted: 26 Jan 2012 07:45 PM PST Researchers have demonstrated how a new virus evolves, shedding light on how easy it can be for diseases to gain dangerous mutations.

Visual nudge improves accuracy of mammogram readings Posted: 26 Jan 2012 07:45 PM PST False negatives and positives plague the reading of mammograms, limiting their usefulness. Computer scientists have now shown that the accuracy of novice readers can be improved by nudging them visually to follow the scanpath of an expert radiologist. The "nudge" is a brief change in the brightness or warmth in the image in the peripheral field of view.

Family history of psychiatric disorders shapes intellectual interests, study suggests Posted: 26 Jan 2012 07:43 PM PST A family history of psychiatric conditions such as autism and depression could influence the subjects a person finds engaging, new research suggests. Although preliminary, the findings provide a new look at the oft-studied link between psychiatric conditions and aptitude in the arts or sciences.

New findings on aging pediatric bruises Posted: 26 Jan 2012 01:11 PM PST A multi-university research group has recently published a paper detailing new work on the analysis and dating of human bruises. The research will have particular application to pediatric medicine, as bruise age is often key evidence in child abuse cases.

Leukemia cells are 'bad to the bone', research finds Posted: 26 Jan 2012 01:11 PM PST Researchers have discovered new links between leukemia cells and cells involved in bone formation, offering a fresh perspective on how the blood cancer progresses and raising the possibility that therapies for bone disorders could help in the treatment of leukemia.

Rap music powers rhythmic action of medical sensor Posted: 26 Jan 2012 12:21 PM PST The driving bass rhythm of rap music can be harnessed to power a new type of miniature medical sensor designed to be implanted in the body.

Newer radiation therapy technology improves patients' quality of life, research finds Posted: 26 Jan 2012 11:36 AM PST Patients with head and neck cancers who have been treated with newer, more sophisticated radiation therapy technology enjoy a better quality of life than those treated with older radiation therapy equipment, a study has found.

Scientists link evolved, mutated gene module to syndromic autism Posted: 26 Jan 2012 11:36 AM PST Medical researchers reports that newly discovered mutations in an evolved assembly of genes cause Joubert syndrome, a form of syndromic autism.

Obesity and pain linked, study of one million Americans shows Posted: 26 Jan 2012 11:29 AM PST A clear association between obesity and pain -- with higher rates of pain identified in the heaviest individuals -- was found in a study of more than one million Americans.

Rotational motion of cells plays a critical role in their normal development, researchers find Posted: 26 Jan 2012 09:37 AM PST Researchers have discovered a rotational motion that plays a critical role in the ability of breast cells to form the spherical structures in the mammary gland known as acini. This rotation, called "CAMo," for coherent angular motion, is necessary for the cells to form spheres. Otherwise, cells undergo random motion, leading to loss of structure and malignancy.

Scientists map one of life's molecular mysteries: Visualisation of the molecular gateway across and into cellular membranes Posted: 26 Jan 2012 09:37 AM PST All living organisms are made up of cells, behind these intricate life forms lie complex cellular processes that allow our bodies to function. Researchers working on protein secretion -- a fundamental process in biology -- have revealed how protein channels in the membrane are activated by special signals contained in proteins destined for secretion. The results help explain the underlying mechanism responsible for the release of proteins such as hormones and antibodies into the blood stream.

Genetic screens bring new hope for tackling sleeping sickness Posted: 25 Jan 2012 10:12 AM PST New genetic technique allows to look into the mechanism of action of the drugs used to treat sleeping sickness for the first time and to understand how resistance develops.

Shoulder pain from using your iPad? Don't use it on your lap Posted: 25 Jan 2012 06:10 AM PST The sudden popularity of tablet computers such as the Apple iPad has not allowed for the development of guidelines to optimize users' comfort and well-being. Researchers now report that head and neck posture during tablet computer use can be improved by placing the tablet higher to avoid low gaze angles, and through the use of a case that provides optimal viewing angles.

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