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Science News Archive August 2013 - Page 20


Page 20 of 29

Rethinking 'The Code'

The study reveals that the protein complex Mll2 is responsible for implementing activating histone marks on 'poised' genes, but its loss has little effect on developmental gene activation during differentiation. This suggests a more complex understanding of histone modification patterns in embryonic and cancer cells.

SourceStowers Institute for Medical Research·JournalNature Structural & Molecular Biology·DateAug 11, 2013

Genetic mutations linked to Parkinson's disease

A study published in Nature Neuroscience reveals that genetic mutations linked to Parkinson's disease can cause problems with mitophagy, a process essential for eliminating damaged cells. The research suggests that targeting this pathway could lead to the development of more effective drug treatments.

SourceUniversity College London·JournalNature Neuroscience·DateAug 11, 2013

Piano fingers

Researchers found that piano players' hand muscle contractions differ depending on the sequence of notes played, indicating coarticulation. This phenomenon is similar to coarticulation in speech and American Sign Language, suggesting a complex neural connection between finger movements and keystrokes.

SourceAmerican Physiological Society·JournalJournal of Neurophysiology·DateAug 9, 2013

New treatment for brittle bone disease found

Researchers at the University of Sheffield have developed a new treatment for children with brittle bone disease, finding that oral risedronate significantly reduces the risk of fractures. The study showed rapid action, with curves for fracture risk diverging after just 6 weeks of treatment.

SourceUniversity of Sheffield·JournalThe Lancet·DateAug 9, 2013

Deep Earth heat surprise

Researchers have successfully simulated pressure conditions in the deep lower mantle, measuring thermal conductivity and finding heat transfer to be lower than expected. The study estimates a total heat flow of 10.4 terawatts across the Earth, about 60% of human civilization's power usage.

SourceCarnegie Institution for Science·JournalScientific Reports·DateAug 9, 2013

The skinny on cocaine

Research from the University of Cambridge reveals that chronic cocaine use causes profound metabolic changes, reducing the body's ability to store fat. This leads to significant weight gain during recovery, which can contribute to relapse and has profound implications for health and well-being.

SourceUniversity of Cambridge·JournalAppetite·DateAug 9, 2013

New hope for improved TB treatments

Researchers at University of Southampton have discovered new markers of tuberculosis that may help in developing new diagnostic tests and treatments. Lung damage releases specific proteins, which can be used to screen individuals and halt transmission between population groups.

SourceUniversity of Southampton·JournalThe Journal of Infectious Diseases·DateAug 9, 2013

The code of objects

A study by Davide Zoccolan and colleagues found that the anterior inferotemporal cortex (IT) categorizes objects based on visual similarity, except for four-legged animals which are represented by semantic meaning. The IT retains a 'raw' lower-level coding of object properties like color and size.

SourceInternational School of Advanced Studies (SISSA)·JournalPLOS Computational Biology·DateAug 9, 2013

Moffitt researchers identify gene variations that may help predict cancer treatment response

Researchers at Moffitt Cancer Center identified four genetic variants associated with increased risk of death in non-small cell lung cancer patients. These variants also indicate a greater risk of death if treatment plans include surgery without chemotherapy compared to those with chemotherapy following surgery.

Latino genomes point way to hidden DNA

Researchers discovered 20 million base pairs of genetic sequence hidden in centromeres, a key finding that could aid in mapping the human genome. Latino genomes proved uniquely powerful in filling in uncharted regions due to their African ancestry.

SourceHarvard Medical School·JournalAmerican Journal of Human Genetics·DateAug 8, 2013

Capturing live tumor cells in the blood

Researchers develop a new microfluidic chip that can capture over 90% of circulating tumor cells from patient blood, providing potential applications for cancer screenings, treatment assessments, and disease progression determination. The technique shortens processing time and improves efficiency compared to existing methods.

SourceAmerican Institute of Physics·JournalBiomicrofluidics·DateAug 8, 2013

Kids born small should get moving

A study by Baylor College of Medicine found that growth-restricted mice became obese due to reduced physical activity, not increased appetite. This discovery has implications for the worldwide obesity epidemic affecting millions of low birth weight babies.

SourceBaylor College of Medicine·JournalInternational Journal of Obesity·DateAug 8, 2013