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Science News Archive June 2013 - Page 6


Page 6 of 30

It's all in the genes -- including the tracking device

Researchers have successfully implemented a genetic-based fish tagging method, called parentage-based tagging (PBT), in the Snake River Basin. This non-invasive approach allows for the collection of detailed information about hatchery-reared fish, enabling more effective fisheries management and conservation efforts.

SourceCanadian Science Publishing·JournalCanadian Journal of Fisheries and Aquatic Sciences·DateJun 24, 2013

Genetic survey sheds light on Oceans' lean, mean microbial machines: UBC research

A recent study published in the Proceedings of the National Academy of Sciences found that planktonic bacteria have reduced their genomes to optimize growth and adaptability. This adaptation allows these microorganisms to efficiently utilize diverse energy sources and survive in the ocean's complex ecosystem.

SourceUniversity of British Columbia·JournalProceedings of the National Academy of Sciences·DateJun 24, 2013

Bumpy beast was a desert dweller

A new study reveals that a Pangean desert supported a unique fauna, including the giant pareiasaur Bunostegos, which sported large, bulbous skulls resembling modern giraffe horns. The discovery supports the theory of central Pangea being climatically isolated, allowing this relict fauna to evolve distinct anatomical features.

SourceSociety of Vertebrate Paleontology·JournalJournal of Vertebrate Paleontology·DateJun 24, 2013

Published research shows promise of new device to detect disease with drop of blood

Researchers at New Jersey Institute of Technology have developed a lab-on-a-chip that can detect cells with sub-cellular resolution, enabling early detection of diseases such as viruses and cancer. The device uses carbon nanotubes to measure electrical properties of cells, offering a non-invasive and quick method for disease diagnosis.

SourceNew Jersey Institute of Technology·JournalBiosensors and Bioelectronics·DateJun 24, 2013

New 'biowire' technology matures human heart by mimicking fetal heartrate

Researchers at the University of Toronto have developed a new method to mature human heart cells by applying electrical pulses and simulating fetal heart rates. This discovery offers a fast and reliable way to create mature human cardiac patches for various applications, including drug screening and transplantation.

A prenatal trigger for postnatal obesity

Research in Finland and mice found a prenatal link between intrahepatic cholestasis of pregnancy and increased child obesity risk. Teenagers born to mothers with the condition had altered metabolic profiles and higher BMI. A mouse model also revealed offspring were more susceptible to metabolic disease and diet-induced obesity.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 24, 2013

Enhancing RNA interference

A new study from MIT sheds light on the nanoparticles' fate, suggesting ways to maximize delivery of short interfering RNA (siRNA) for gene silencing. The researchers found that a protein called Niemann Pick type C1 (NPC1) is crucial for nanoparticle recycling, and disabling it can increase siRNA delivery efficiency.

SourceMassachusetts Institute of Technology·JournalNature Biotechnology·DateJun 24, 2013

Rotation-resistant rootworms owe their success to gut microbes

Researchers discovered that gut microbes in rotation-resistant Western corn rootworms facilitate their ability to feed on soybean leaves and tolerate the plant's defenses. The study found significant differences in bacterial species abundance and digestive enzyme activity between resistant and nonresistant beetles.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateJun 24, 2013

JCI early table of contents for June 24, 2013

A study finds a link between prenatal ICP and postnatal obesity in offspring, while another investigation reveals genetic changes in preeclampsia and brain inflammation caused by chronic cannabis use. These findings may have implications for understanding and treating metabolic diseases and pregnancy complications.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 24, 2013

Breastfeeding boosts ability to climb social ladder

Research found that breastfeeding significantly reduces chances of downward social mobility and increases odds of climbing the social ladder. Breastfed children showed improved brain development, stress levels, and intellect, which contribute to better adult outcomes.

SourceBMJ Group·JournalArchives of Disease in Childhood·DateJun 24, 2013

Stray gases found in water wells near shale gas sites

A Duke University-led study reveals that homeowners within one kilometer of shale gas wells are more likely to have contaminated drinking water with methane, ethane, and propane. The research analyzed 141 drinking water samples from private wells in northeastern Pennsylvania's Marcellus shale basin.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateJun 24, 2013

Modified immune cells seek and destroy melanoma

Researchers engineered dendritic cells to recognize protein fragments from cancer-specific antigens, eliciting an immune response that led to partial and complete clinical responses in patients with active disease. The study suggests a promising approach for enhancing immune recognition of melanoma cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 24, 2013

1 in 10 female German or British tourists holidaying in southern Europe suffers sexual harassment

A study by the European Institute of Studies on Prevention found that 8.6% of people suffered sexual harassment and 1.5% experienced sex against their will during summer holidays in southern Europe. The survey, which interviewed over 6,500 young tourists, highlights the need for awareness and preventive measures to address these issues.

SourceSpanish Foundation for Science and Technology·JournalArchives of Sexual Behavior·DateJun 24, 2013

NMR advance brings proteins into the open

Researchers at Brown University used a novel approach to nuclear magnetic resonance spectroscopy to resolve the key interaction between two proteins. The study reveals that the GroEL chaperone is a permissive captor, allowing the smaller protein to bind at two hydrophobic sites and detach, resulting in conformational heterogeneity.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateJun 24, 2013