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Science News Archive February 2009 - Page 19


Page 19 of 24

Psychological impact found in adolescents with kidney transplants

A study reveals that adolescents who undergo kidney transplants have a significantly higher prevalence of psychiatric conditions, including depression, phobia, and ADHD. They also experience educational impairment and social isolation. The study highlights the need for routine screening and support to address these challenges.

SourceWiley·JournalPediatric Transplantation·DateFeb 5, 2009

Mutant rats resist warfarin

Researchers identified eighteen new genetic changes in rats from four continents that enable resistance to warfarin. VKORC1 gene mutations may cause heritable resistance by preventing coumarin derivatives from interfering with the reductase enzyme activity.

SourceBMC (BioMed Central)·JournalBMC Genetics·DateFeb 5, 2009

Sea level rise could be worse than anticipated

A new study published in Science suggests that a collapse of the West Antarctic Ice Sheet could lead to significantly higher sea level rise than currently projected, with devastating effects on coastal areas and global sea levels. The research takes into account various forces, including gravity, changes in the Earth's rotation, and la...

SourceOregon State University·JournalScience·DateFeb 5, 2009

Nanotube's 'tapestry' controls its growth

Carbon nanotubes grow through self-assembly forming a 'tapestry' of twisting threads, where each thread's length determines the tube's growth rate. The research reveals a direct relationship between a nanotube's chiral angle and its growth speed.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateFeb 5, 2009

The nonsense in our genes

A study by the Wellcome Trust Sanger Institute suggests that around 1 in 200 human genes may be unnecessary for human health. The researchers found that single-letter changes in genetic code can disrupt proteins, leading to variations that are either beneficial or have little consequence.

SourceWellcome Trust Sanger Institute·JournalAmerican Journal of Human Genetics·DateFeb 5, 2009

Alternative and complementary medicine should have role in new era of health care reform

The article highlights the importance of alternative and complementary medicine (CAM) in healthcare reform, advocating for universal coverage and evidence-based methods. CAM encourages a holistic view of health, promoting whole-systems approaches and multifactorial integrative therapies.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalThe Journal of Alternative and Complementary Medicine·DateFeb 5, 2009

Imaging for low-back pain without serious underlying conditions does not improve clinical outcomes

A meta-analysis of randomized controlled trials found no significant differences between immediate imaging and usual clinical care for patients with acute or sub-acute low-back pain. The authors recommend refraining from routine imaging unless serious underlying conditions are suspected, to reduce unnecessary tests and improve patient ...

SourceThe Lancet_DELETED·JournalThe Lancet·DateFeb 5, 2009

Alcohol adverts attract the young

A systematic review of over 13,000 participants found that exposure to alcohol adverts and product placements increases drinking behavior in young people. The study suggests that counter-advertising and social marketing techniques may be effective prevention options for limiting alcohol problems in young people.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateFeb 5, 2009

Laser-sculpted optical devices for future giant telescopes

New research demonstrates how laser-based techniques can create micron-sized light pathways in three dimensions, enabling the detection of faint light from extrasolar planets and galaxies. This technology has the potential to improve the sensitivity and precision of future telescopes, such as the planned European ELT.

SourceOptica·JournalOptics Express·DateFeb 5, 2009

Heart failure linked to cognitive impairment

A new study published by Elsevier found that nearly half of patients with heart failure have problems with memory and other aspects of cognitive functioning. Memory problems, especially short-term memory, were the most common type of cognitive deficit in these patients.

SourceElsevier·JournalJournal of Cardiac Failure·DateFeb 5, 2009

Hope for preventative treatment for cystic fibrosis lung disease

Researchers have successfully prevented cystic fibrosis lung disease in a mouse model by administering amiloride, a drug that inhibits hyperactive sodium channels. Early inhalation treatment prevents chronic lung damage and airway inflammation, providing a new therapeutic approach for the widespread genetic disease.

SourceHeidelberg University Hospital·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 5, 2009

Origin of claws seen in 390-million-year-old fossil

A 390-million-year-old fossil discovery sheds light on the origins of claws in scorpions and horseshoe crabs. The specimen, Schinderhannes bartelsi, features a head with large eyes, paired grasping appendages, and wing-like limbs, providing insights into the evolution of these unique structures.

SourceYale University·JournalScience·DateFeb 5, 2009

Measuring molecules to improve drug design

CSIRO's DAC microscopy method measures proteins in solution, allowing accurate dimensions of membrane receptors to be taken. This will help drug companies design more effective pharmaceuticals by understanding the complex structures of these molecules.

SourceCSIRO Australia·JournalJournal of Microscopy·DateFeb 5, 2009