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Science News for May 22, 2011


Scientists find new drug target in breast cancer

Scientists have discovered a protein involved in drug resistance in breast cancer, which could be targeted for new treatments. Blocking the production of this protein in human cells made them more responsive to anti-oestrogen drugs.

SourceImperial College London·JournalNature Medicine·DateMay 22, 2011

Human brain's most ubiquitous cell cultivated in lab dish

Astrocytes, the most common cell in the human nervous system, have been cultivated in a lab dish using embryonic and induced human stem cells. This breakthrough allows researchers to better understand their functions and develop new therapies for neurological disorders such as dementia and Parkinson's disease.

SourceUniversity of Wisconsin-Madison·JournalNature Biotechnology·DateMay 22, 2011

Telemonitoring can improve overall survival of HF patients

Recent meta-analyses show telemedical monitoring can improve overall survival by 17-47% in CHF patients. Two trials presented at the Heart Failure Congress 2011 found benefits in specific subgroups, including those with prior decompensation and no depression.

SourceEuropean Society of Cardiology·DateMay 22, 2011
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

A study opens the possibility of developing a preventive vaccine against HIV/AIDS

Researchers from IDIBAPS have conducted a study on HIV-infected patients with undetectable viral load, finding that they can induce a broad and strong humoral immune response. The percentage of treated and untreated patients generating broad-spectrum neutralizing antibodies was very similar, suggesting a potential preventive vaccine ba...

SourceIDIBAPS - Institut d'Investigacions Biomèdiques August Pi i Sunyer·JournalJournal of Virology·DateMay 22, 2011

Scientists find odd twist in slow 'earthquakes': Tremor running backwards

Researchers found that episodic tremors can reverse direction and travel back through fault lines much faster than the original rupture. The event was observed in the Pacific Northwest region, particularly in Washington state, and released as much energy as a magnitude 6.8 earthquake.

SourceUniversity of Washington·JournalNature Geoscience·DateMay 22, 2011

Study of stem cell diseases advanced by new Stanford technique

Researchers at Stanford University School of Medicine used undifferentiated induced pluripotent stem cells to study dyskeratosis congenita, a rare genetic disease. They found that the activity of telomerase, an enzyme critical to aging and cell renewal, is correlated with the severity of symptoms.

SourceStanford Medicine·JournalNature·DateMay 22, 2011

UBC-led team develops platform to monitor hematopoietic stem cells

A UBC-led team has developed an automated microfluidic cell culture platform to study hundreds of hematopoietic stem cells at the single cell level. The new tool provides insights into HSC survival and growth factor requirements, with applications in drug development, clone selection, and culture optimization.

SourceUniversity of British Columbia·JournalNature Methods·DateMay 22, 2011
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Gulf currents primed bacteria to degrade oil spill

A new computer model simulates how Gulf currents enabled marine microorganisms to degrade oil spills more quickly. The 'dynamic auto-inoculation' process activated microbes, increasing bacterial populations and degrading hydrocarbons.

SourceAmerican Society for Microbiology·DateMay 22, 2011

Ulcer bacteria may contribute to development of Parkinson's disease

A study found that infection with the bacteria Helicobacter pylori can lead to Parkinson's disease symptoms in mice, and researchers suggest that this may be due to a modified cholesterol produced by the bacteria. The findings could have implications for understanding the development of neurodegenerative disorders.

SourceAmerican Society for Microbiology·DateMay 22, 2011
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Genomics and social network analysis team up to solve disease outbreaks

Researchers used whole genome sequencing and social network analysis to track a tuberculosis outbreak in British Columbia, identifying key individuals as superspreaders and behaviors contributing to the outbreak. The technique allowed public health officials to reconstruct outbreaks and understand how pathogens move through populations.

SourceAmerican Society for Microbiology·DateMay 22, 2011

Heart Failure: Targeting the right patients for CRT-D

Patients with mild to moderate dyssynchrony and preserved contractile function benefit most from CRT-D, according to the latest MADIT-CRT trial analysis. The study found that improvements in synchrony and contractile function are associated with reduced death and heart failure events.

SourceEuropean Society of Cardiology·DateMay 22, 2011

A direct path for understanding and treating brittle bones

Researchers identified the Lrp5 gene's crucial role in bone growth and density, providing a new strategy for treating diseases like osteoporosis. The study also found that targeting mature bone cells might increase bone mass and treat conditions like osteogenesis imperfecta.

SourceBoston Children's Hospital·JournalNature Medicine·DateMay 22, 2011

Mushroom compound suppresses prostate tumors

Researchers at Queensland University of Technology found a mushroom compound, polysaccharopeptide (PSP), to be 100% effective in suppressing prostate tumor development in mice. PSP targets prostate cancer stem cells and prevents tumour formation without causing side effects.

SourceQueensland University of Technology·JournalPLOS ONE·DateMay 22, 2011

EMPHASIS HF: Study shows epleronone to reduce atrial fibrillation

A sub-analysis of the EMPHASIS-HF trial found eplerenone significantly reduced new onset atrial fibrillation and flutter in patients with class 2 heart failure. The benefits of eplerenone were similar in patients with and without atrial fibrillation at baseline.

SourceEuropean Society of Cardiology·JournalNew England Journal of Medicine·DateMay 22, 2011
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

The dance of the cells: A minuet or a mosh?

Scientists at Harvard School of Public Health discovered that cells exert forces on their neighbors, leading to a cooperative yet chaotic migration. The study found that collective cellular migration is not a smooth process, but rather an 'organized chaos' with pushing and pulling in all directions.

SourceHarvard T.H. Chan School of Public Health·JournalNature Materials·DateMay 22, 2011