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Satellite tracking reveals sea turtle feeding hotspots

Satellite tracking of threatened loggerhead sea turtles has revealed two previously unknown feeding 'hotspots' in the Gulf of Mexico that are providing important habitat for at least three separate populations of the turtles, according to a study published recently in the journal Biological Conservation.

Animal Behavior | Source: United States Geological Survey | Views: 49 | Comments: 0
It's not solitaire: Brain activity differs when one plays against others

Researchers have found a way to study how our brains assess the behavior – and likely future actions – of others during competitive social interactions. Their study, described in a paper in the Proceedings of the National Academy of Sciences, is the first to use a computational approach to tease out differing patterns of brain activity during these interactions, the resear

Neuroscience | Source: University of Illinois at Urbana-Champaign | Views: 59 | Comments: 0
Heart hormone helps shape fat metabolism

It's well known that exercising reduces body weight because it draws on fat stores that muscle can burn as fuel. But a new study at Sanford-Burnham Medical Research Institute (Sanford-Burnham) suggests that the heart also plays a role in breaking down fat. In their study, published February 6 in the Journal of Clinical Investigation, Sheila Collins, Ph.D. a

Molecular Biology | Source: Sanford-Burnham Medical Research Institute | Views: 69 | Comments: 0
Physical punishment of children potentially harmful to their long-term development

An analysis of research on physical punishment of children over the past 20 years indicates that such punishment is potentially harmful to their long-term development, states an article in CMAJ (Canadian Medical Association Journal).

Development | Source: Canadian Medical Association Journal | Views: 65 | Comments: 0
'ROCK' off: Study establishes molecular link between genetic defect and heart malformation

UNC researchers have discovered how the genetic defect underlying one of the most common congenital heart diseases keeps the critical organ from developing properly. According to the new research, mutations in a gene called SHP-2 distort the shape of cardiac muscle cells so they are unable to form a fully functioning heart.

Molecular Biology | Source: University of North Carolina School of Medicine | Views: 50 | Comments: 0
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'ROCK' off: Study establishes molecular link between genetic defect and heart malformation

UNC researchers have discovered how the genetic defect underlying one of the most common congenital heart diseases keeps the critical organ from developing properly. According to the new research, mutations in a gene called SHP-2 distort the shape of cardiac muscle cells so they are unable to form a fully functioning heart.

Molecular Biology | Source: University of North Carolina School of Medicine | Views: 50 | Comments: 0
Sharp images from the living mouse brain

To explore the most intricate structures of the brain in order to decipher how it functions – Stefan Hell's team of researchers at the Max Planck Institute for Biophysical Chemistry in Göttingen has made a significant step closer to this goal. Using the STED microscopy developed by Hell, the scientists have, for the first time, managed to record detailed live images inside the brain of a living mo

Neuroscience | Source: Max-Planck-Gesellschaft | Views: 51 | Comments: 0
Researchers develop method of directing stem cells to increase bone formation and bone strength

A research team led by UC Davis Health System scientists has developed a novel technique to enhance bone growth by using a molecule which, when injected into the bloodstream, directs the body's stem cells to travel to the surface of bones. Once these cells are guided to the bone surface by this molecule, the stem cells differentiate into bone-forming cells and synthesize proteins to enhance bone g

Stem cells | Source: University of California - Davis Health System | Views: 71 | Comments: 0
Researchers discover key to immune cell's 'internal guidance' system

University of British Columbia researchers have discovered the molecular pathway that enables receptors inside immune cells to find, and flag, fragments of pathogens trying to invade a host.

Immunology | Source: University of British Columbia | Views: 58 | Comments: 0
Genetic variant increases risk of common type stroke

A genetic variant that increases the risk of a common type of stroke has been identified by scientists in a study published online in Nature Genetics today. This is one of the few genetic variants to date to be associated with risk of stroke and the discovery opens up new possibilities for treatment.

Genetics | Source: Wellcome Trust | Views: 51 | Comments: 0
Researchers weigh methods to more accurately measure genome sequencing

Lost in the euphoria of the 2003 announcement that the human genome had been sequenced was a fundamental question: how can we be sure that an individual's genome has been read correctly?

Genetics | Source: New York University | Views: 58 | Comments: 0
Hearing metaphors activates brain regions involved in sensory experience

When a friend tells you she had a rough day, do you feel sandpaper under your fingers? The brain may be replaying sensory experiences to help understand common metaphors, new research suggests.

Neuroscience | Source: Emory University | Views: 69 | Comments: 0
Whole exome sequencing identifies cause of metabolic disease

Sequencing a patient's entire genome to discover the source of his or her disease is not routine – yet. But geneticists are getting close.

Genetics | Source: Emory University | Views: 155 | Comments: 0
Discovery of extremely long-lived proteins may provide insight into cell aging

One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain how the aging process occurs in the brain.

Molecular Biology | Source: Salk Institute | Views: 163 | Comments: 0
Parasites or not? Transposable elements in fruit flies

Nearly all organisms contain pieces of DNA that do not really belong to them. These "transposable elements", so called because they are capable of moving around within and between genomes, generally represent a drain on the host's resources and in certain cases may lead directly to disease, e.g. when they insert themselves within an essential host gene. The factors that govern the spread of tran

Genetics | Source: University of Veterinary Medicine -- Vienna | Views: 116 | Comments: 1
New procedure repairs severed nerves in minutes, restoring limb use in days or weeks

American scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, rather than months or years. The team used a cellular mechanism similar to that used by many invertebrates to repair damage to nerve axons. Their results are published today in the Journal of Neuroscience Research.

Neuroscience | Source: Wiley-Blackwell | Views: 132 | Comments: 0
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