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Science News Archive October 2012 - Page 12


Page 12 of 33

Crusty foods may worsen heart problems associated with diabetes

A University of Illinois study found that consuming foods with advanced glycation end products (AGEs) can increase cardiovascular complications in people with diabetes. Foods like grilled meats and crispy fried foods contain AGEs, which are associated with plaque formation and heart disease.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalInternational Journal of Food Science and Nutrition·DateOct 22, 2012

Stem cell bodyguards

A recent study has revealed the existence of a rare sub-group of activated immune cells that act as bodyguards to protect stem cells from premature differentiation. These macrophage cells secrete prostaglandins, which delay differentiation and preserve the youthful state of the stem cells.

SourceWeizmann Institute of Science·JournalNature Immunology·DateOct 22, 2012

Survival of the shyest?

A new study by Professor Grant Brown and colleagues reveals that a fish's personality affects its ability to recall predator threats. Shy trout retain information about predator odors for up to eight days, while bold trout forget within 24 hours.

SourceSpringer·JournalBehavioral Ecology and Sociobiology·DateOct 22, 2012

Breakthrough technique images breast tumors in 3-D with great clarity, reduced radiation

Researchers developed a new technique using phase contrast tomography and EST algorithm to create high-quality 3D images of breast tissue, allowing for earlier and more accurate detection of breast tumors. The technique uses lower radiation doses than current CT scanners, enabling clearer images with sharper details.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateOct 22, 2012

Kittens: Their microbiomes are what they eat

A study by University of Illinois researchers found that the gut microbiome composition of growing kittens differs depending on their diet, with high-protein diets linked to lower levels of health-promoting bacteria. Conversely, moderate-protein diets were associated with higher levels of beneficial bacteria, potentially promoting bett...

A new glow for electron microscopy

Researchers from MIT have developed a new tag, APEX, that enables high-resolution visualization of proteins in cells using electron microscopy. The APEX tag allows scientists to label and identify specific proteins with unprecedented clarity, resolving open questions regarding protein locations and functions.

SourceMassachusetts Institute of Technology·JournalNature Biotechnology·DateOct 22, 2012

New understanding of Antarctic's weight-loss

A new study using Gravity Recovery and Climate Experiment (GRACE) satellite data has re-calibrated the scales to more accurately calculate ice mass loss. The research found that Antarctica overall is contributing less to sea-level rise than previously thought, with West Antarctica losing mass at an accelerated rate.

SourceNewcastle University·JournalNature·DateOct 21, 2012

Energy-sensing switch discovery could have broad implications for biology and medicine

Researchers at Scripps Research Institute have discovered a genetic sequence that can alter its host gene's activity in response to cellular energy levels, a finding that could have broad implications for biology and medicine. The energy-sensing switch, known as a riboswitch, detects the molecule ATP and controls global metabolic regul...

SourceScripps Research Institute·JournalNature Chemical Biology·DateOct 21, 2012