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Science News for November 3, 2013


Voxel-based magnetic resonance morphometry in Parkinson's disease patients

A study using voxel-based magnetic resonance morphometry found significant gray matter volume loss in Parkinson's disease patients compared to healthy controls. This loss was particularly pronounced in temporal, occipital, parietal, frontal, insular, and cerebellar regions.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 2013

Nanotube-based sensors can be implanted under the skin for a year

Researchers have developed nanotube-based sensors that can monitor nitric oxide levels in living animals for more than a year. The sensors, made of carbon nanotubes, can be implanted under the skin and used to monitor inflammation, potentially leading to new tools for cancer research and diabetes management.

SourceMassachusetts Institute of Technology·JournalNature Nanotechnology·DateNov 3, 2013

Studies show wide support for school-based health centers

Two studies surveyed parents and adolescents at school-based health centers (SBHCs) and found highly positive views, with 83% trusting the providers to take good care of their children. SBHCs serve as the main source of medical care for many students, offering vaccinations, check-ups, and mental health counseling.

SourceUniversity of Colorado Anschutz Medical Campus·DateNov 3, 2013
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

McMaster scientists unlock secrets of diabetes drug

Researchers at McMaster University discovered that metformin reduces harmful fat molecules in the liver, allowing insulin to work better and lower blood sugar levels. The study found that even obese mice with genetic mutations developed fatty liver and pre-diabetes.

SourceMcMaster University·JournalNature Medicine·DateNov 3, 2013

York researchers discover important mechanism behind nanoparticle reactivity

Researchers used electron microscopy techniques to study metallic nanoparticles' reaction with environment, finding oxidation occurs much faster due to strain introduced by size. The discovery improves understanding of nanoparticles' applications in clean fuel technologies, data storage, and catalysis.

SourceUniversity of York·JournalNature Materials·DateNov 3, 2013
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

The biggest mass extinction and Pangea integration

A 250 million-year-old study suggests that Pangea integration led to environmental deterioration, causing the biggest mass extinction. The integration resulted in global-scale volcanic eruptions, greenhouse gas emissions, and changes in ocean chemistry, ultimately devastating land and marine ecosystems.

SourceScience China Press·DateNov 3, 2013

Is DNA from mom or dad?

A new technique called HaploSeq enables researchers to quickly determine which genetic variants occur together on the same chromosome and came from the same parent. This advance has direct implications for personalized medicine, improving organ donation matching and understanding human migration patterns.

SourceLudwig Institute for Cancer Research·JournalNature Biotechnology·DateNov 3, 2013

Mechanism by which metformin inhibits food intake

The study found that metformin significantly reduced food intake and body weight gain by inhibiting neuropeptide Y expression in the hypothalamus. Metformin also improved lipid metabolism by reducing plasma low-density lipoprotein levels.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 2013

Life, but not as we know it

Researchers at the University of Nottingham have found a type of archaea that can reproduce without normal replication processes, growing faster in its absence. This discovery challenges existing understanding of DNA replication and has implications for cancer research.

SourceUniversity of Nottingham·JournalNature·DateNov 3, 2013
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

How to identify inflammatory demyelinating pseudotumor in the spinal cord?

Researchers analyzed 36 cases of inflammatory demyelinating pseudotumor in the spinal cord, finding that patchy reinforcement on MRI and inflammatory cell infiltration are key features. The study aims to reduce misdiagnosis rate and improve patient quality of life by providing accurate imaging and clinical properties.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 2013