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Science News Archive April 2012 - Page 17


Page 17 of 29

Mayo Clinic breast cancer study finds new type of mutation

Researchers at Mayo Clinic have discovered a new class of molecular mutation in various forms of breast cancer, which may shed light on the development and growth of different types of breast tumors. Fusion transcripts, the mutated forms of RNA, could provide a way to identify tumor subtypes and offer new strategies for treatment.

SourceMayo Clinic·JournalCancer Research·DateApr 16, 2012

Therapy exploits 'addiction' of leukemia cells

Researchers identify non-classical oncogenes critical for leukemia cell survival and develop a strategy targeting these molecules, potentially reducing toxicity of current treatments. Dual inhibition of PI3K subtypes supports cancer cell death in mice and human tumor cells.

SourceCell Press·JournalCancer Cell·DateApr 16, 2012

JCI early table of contents for April 16, 2012

Researchers study the origins of HIV/AIDS, revealing that SIV replication in human tissues is crucial to viral efficiency. In contrast, a new study finds that autoantibodies against citrullinated proteins contribute to bone loss in rheumatoid arthritis patients.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 16, 2012

Diesel technologies drastically cut emissions under real-world conditions

Diesel technologies have drastically cut particulate matter (PM) and nitrogen oxides (NOx) emissions in new tractor trailer trucks, with reductions of 98% for NOx and 95% for PM. The emission cuts are attributed to exhaust gas recirculation and selective catalytic reduction technologies.

SourceNorth Carolina State University·JournalTransportation Research Record Journal of the Transportation Research Board·DateApr 16, 2012

University of Toronto biologists predict extinction for organisms with poor quality genes

Biologists at the University of Toronto found that individuals with low-quality genes can produce offspring with even more inferior chromosomes, possibly leading to extinction. The study suggests that this could result in a 'mutational meltdown' that devastates endangered populations and increases health problems.

SourceUniversity of Toronto·JournalProceedings of the National Academy of Sciences·DateApr 16, 2012

Nanosponges soak up oil again and again

Researchers at Rice University and Penn State University discovered a material that can absorb oil spilled in water due to the addition of boron to carbon nanotubes. The nanosponges have a high surface area, conduct electricity, and can be manipulated with magnets.

SourceRice University·JournalScientific Reports·DateApr 16, 2012

Researcher explores the 'word of mouth' paradox

Sarah Moore's research finds that analyzing emotional experiences reduces emotions, while analyzing practical experiences amplifies them. For positive experiences, it's best to relive the emotion without rationalizing, while cognitive experiences benefit from analysis and reflection.

SourceUniversity of Alberta·JournalJournal of Consumer Research·DateApr 16, 2012

University of Miami grad student receives NSF GRF to study impact of ocean acidification

Rachael Heuer, a University of Miami graduate student, has received an NSF Graduate Research Fellowship to investigate how Gulf toadfish cope with ocean acidification. Her research findings indicate that toadfish exposed to elevated CO2 levels lose base from their bodies, affecting their pH balance and health.

Hebrew SeniorLife researchers discover genes linked to osteoporosis, bone breaks

Hebrew SeniorLife researchers have identified 56 genetic variants associated with osteoporosis and bone mineral density. The study found that these variants can increase the risk of bone fractures, with women over 65 facing a higher risk. The findings may lead to personalized gene-based treatments for osteoporosis.

Latest research confirms genetic susceptibility to lung cancer

A recent study published in the Journal of Thoracic Oncology reveals that Japanese patients with lung cancer are more likely to harbor specific genetic mutations and have a different risk profile compared to Western patients. The research highlights the importance of considering genetic factors in lung cancer diagnosis and treatment.

SourceInternational Association for the Study of Lung Cancer·JournalJournal of Thoracic Oncology·DateApr 15, 2012

Salk scientists discover how plants grow to escape shade

Researchers found that phytochrome interacting factor 7 (PIF7) serves as key messenger between plant's cellular light sensors and production of auxins, hormones that stimulate stem growth. This discovery could lead to high-yield crops that gather light more efficiently and make better use of farmland.

SourceSalk Institute·JournalGenes & Development·DateApr 15, 2012