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Science News Archive September 2012 - Page 24


Page 24 of 27

Epigenetic causes of prostate cancer

Researchers found that fusion-negative prostate cancers have different DNA methylation patterns than healthy cells, with increased EZH2 enzyme activity. This discovery may lead to more specific treatments and improved diagnosis for prostate cancer patients.

SourceMax-Planck-Gesellschaft·JournalCancer Discovery·DateSep 5, 2012

Pint-size microRNAs show promise against weighty problem, researchers say

Scientists at Virginia Tech and the University of Texas Southwestern Medical Center found that two mini-molecules called microRNAs can help stem the nation's obesity epidemic. The discovery suggests that treatments targeting these two specific microRNAs may help regulate cellular metabolism and increase energy expenditure, leading to r...

SourceVirginia Tech·JournalProceedings of the National Academy of Sciences·DateSep 5, 2012

Comprehensive transcriptome analysis of human ENCODE cells

A comprehensive transcriptome analysis of human ENCODE cells reveals widespread RNA transcripts and epigenetic links, assigning biochemical functions to 80% of the human genome. The study provides powerful data sets for delineating functional elements across the human genome.

SourceRIKEN·JournalNature·DateSep 5, 2012

Fathers who sleep closer to children have lower testosterone levels

A study of 362 fathers in the Philippines found that close sleeping proximity was associated with greater decreases in testosterone levels as men transitioned to fatherhood. This is linked to lower overall testosterone levels compared to fathers who slept apart from their children, suggesting a potential impact on parenting behavior.

SourcePLOS·JournalPLOS ONE·DateSep 5, 2012

Major advances in understanding the regulation and organization of the human genome

The ENCODE project has unveiled that over 80% of the human genome is associated with biological function, while proteins switch genes on and off regularly. The study provides insights into genetic information control and expression in specific cell types, shedding light on disease susceptibility.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateSep 5, 2012

New study examines how ocean energy impacts life in the deep sea

A new study examines the impact of natural gradients in food and temperature on deep-sea species across the globe. The results suggest that temperature has a bigger impact on individual-level parameters like metabolism and growth rate, while food is more important for higher-level parameters like abundance and species diversity.

SourceNational Evolutionary Synthesis Center (NESCent)·JournalProceedings of the National Academy of Sciences·DateSep 5, 2012

University of Hawaii cancer researchers discover gene defect responsible for cancer syndrome

Researchers at the University of Hawaii Cancer Center have identified a germline BAP1 mutation as the cause of a novel cancer syndrome characterized by malignant mesothelioma and various types of melanomas. This discovery provides a visual marker for identifying individuals at high risk, enabling early detection and treatment.

SourceUniversity of Hawaii Cancer Center·JournalJournal of Translational Medicine·DateSep 5, 2012

Toddlers increasingly swallowing liquid detergent capsules

A cluster of five incidents involving toddlers swallowing liquid detergent capsules has prompted a call to action for improved safety warnings and childproof packaging. The incidents resulted in airway blockage, swelling, and ulceration, highlighting the need for urgent action to prevent potential life-threatening injuries.

SourceBMJ Group·JournalArchives of Disease in Childhood·DateSep 5, 2012

Ginkgo biloba extract does not prevent Alzheimer’s dementia

A five-year randomized controlled trial of 2854 elderly patients found no significant difference between ginkgo biloba extract and placebo in preventing Alzheimer's disease diagnosis. No significant difference was also observed in mortality or stroke rates between the groups. The results confirm previous findings from a US-based study.

SourceThe Lancet_DELETED·JournalThe Lancet Neurology·DateSep 5, 2012

Huge human gene study includes Penn State University research

A collaborative five-year project involving over 440 researchers worldwide has published a comprehensive understanding of the human genome's functions. The ENCODE study found that over 80% of the human genome sequence is linked to biological function, and mapped over 4 million regulatory regions where proteins interact with DNA.

SourcePenn State·JournalNature·DateSep 5, 2012

Loss of tropical forests reduces rain

A study by the University of Leeds finds that tropical forests produce significantly more rain than vegetation, with the Amazon and Congo forests maintaining rainfall over surrounding areas. This could have catastrophic consequences for people living thousands of kilometres away if these forests are destroyed.

SourceUniversity of Leeds·JournalNature·DateSep 5, 2012

Quantum physics at a distance

Physicists at the University of Vienna successfully transmitted quantum states between two islands in the Canary Islands, overcoming previous distances of just 97 km. The experiment uses active feed-forward protocol to enable reliable quantum teleportation over long distances.

SourceUniversity of Vienna·JournalNature·DateSep 5, 2012

Internal relations

Researchers at Kansas State University are working on developing a flexible but standardized and secure communication network for medical devices. The team aims to enable devices to monitor and reason about patient health, reducing security problems as devices become more complex.

Forcing the molecular bond issue

Researchers developed a comprehensive model to describe molecular bonding, enabling predictions of binding free energy and resolving past inconsistencies. The new model provides a clear means for measuring this key parameter, critical for understanding material interactions.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateSep 5, 2012

Medicare kidney spending reaches crucial moment

A new strategy for managing Medicare's costly dialysis program has been implemented, bundling total costs and discouraging lapses in quality. The changes aim to rein in health care costs, but concerns remain about the potential impact on patient treatment and overall healthcare expenditure.

SourceBrown University·JournalHealth Affairs·DateSep 4, 2012