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Violence puts wear and tear on kids' DNA

Children who have experienced violence might really be older than their years. The DNA of 10-year-olds who experienced violence in their young lives has been found to show wear and tear normally associated with aging, a Duke University study has found.

Genetics | Source: Duke University | Views: 93 | Comments: 0
Gatekeeper of brain steroid signals boosts emotional resilience to stress

A cellular protein called HDAC6, newly characterized as a gatekeeper of steroid biology in the brain, may provide a novel target for treating and preventing stress-linked disorders, such as depression and post-traumatic stress disorder (PTSD), according to research from the Perelman School of Medicine at the University of Pennsylvania.

Neuroscience | Source: University of Pennsylvania School of Medicine | Views: 75 | Comments: 0
Birds cultivate decorative plants to attract mates

An international team of scientists has uncovered the first evidence of a non-human species cultivating plants for use other than as food. Instead, bowerbirds propagate fruits used as decorations in their sexual displays. The researchers discovered male bowerbirds had unusually high numbers of fruit-bearing plants growing around their bowers, and used these fruits in order to attract females.

Animal Behavior | Source: University of Exeter | Views: 94 | Comments: 0
Protein prevents DNA damage in the developing brain and might serve as a tumor suppressor

St. Jude Children's Research Hospital scientists have rewritten the job description of the protein TopBP1 after demonstrating that it guards early brain cells from DNA damage. Such damage might foreshadow later problems, including cancer.

Neuroscience | Source: St. Jude Children's Research Hospital | Views: 65 | Comments: 0
Fish larvae find the reef by orienting: The earlier the better

The behavior of marine larvae is central to fully understanding and modeling the pelagic (open ocean) stage for many coastal organisms. For the first time, a numerical study conducted by the University of Miami (UM) incorporates horizontal larval fish navigation skills into realistic 3D flow fields, creating a powerful tool that spells out how larvae use environmental cues to find their wa

Marine Biology | Source: University of Miami Rosenstiel School of Marine & Atmospheric Science | Views: 50 | Comments: 0
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More Bioscience News
Fish larvae find the reef by orienting: The earlier the better

The behavior of marine larvae is central to fully understanding and modeling the pelagic (open ocean) stage for many coastal organisms. For the first time, a numerical study conducted by the University of Miami (UM) incorporates horizontal larval fish navigation skills into realistic 3D flow fields, creating a powerful tool that spells out how larvae use environmental cues to find their wa

Marine Biology | Source: University of Miami Rosenstiel School of Marine & Atmospheric Science | Views: 50 | Comments: 0
A matter of priorities

Just as banks store away only the most valuable possessions in the most secure safes, cells prioritise which genes they guard most closely, researchers at the European Molecular Biology Laboratory's European Bioinformatics Institute (EMBL-EBI) have found. The study, published online today in Nature, shows that bacteria have evolved a mechanism that protects important genes from random mutat

Microbiology | Source: European Molecular Biology Laboratory | Views: 62 | Comments: 0
New yeast prion helps cells survive

One of the greatest mysterious in cellular biology has been given a new twist thanks to findings reported in Science. Researchers at the RIKEN Brain Science Institute show that prions, proteins that transmit heritable information without DNA or RNA, can contribute to drug resistance and cellular adaptation. Their discovery of a yeast prion with these properties demonstrates the active role

Molecular Biology | Source: RIKEN | Views: 62 | Comments: 0
Compressed sensing allows super-resolution microscopy imaging of live cell structures

Researchers from the Georgia Institute of Technology and University of California San Francisco have advanced scientists' ability to view a clear picture of a single cellular structure in motion. By identifying molecules using compressed sensing, this new method provides needed spatial resolution plus a faster temporal resolution than previously possible.

Molecular Biology | Source: Georgia Institute of Technology Research News | Views: 62 | Comments: 0
Forensic science used to determine who's who in pre-Columbian Peru

Analysis of ancient mitochondrial DNA (mtDNA) has been used to establish migration and population patterns for American indigenous cultures during the time before Christopher Columbus sailed to the Americas. New research published in BioMed Central's open access journal BMC Genetics has used more detailed DNA analysis of individuals from Arequipa region to identify the family relationships

Genetics | Source: BioMed Central | Views: 52 | Comments: 0
New technique may help severely damaged nerves regrow and restore function

Engineers at the University of Sheffield have developed a method of assisting nerves damaged by traumatic accidents to repair naturally, which could improve the chances of restoring sensation and movement in injured limbs.

Neuroscience | Source: University of Sheffield | Views: 72 | Comments: 0
Specific protein triggers changes in neurons in brain reward center linked to cocaine addiction

New research from Mount Sinai Medical Center in New York reveals that repeated exposure to cocaine decreases the activity of a protein necessary for normal functioning of the brain's reward system, thus enhancing the reward for cocaine use, which leads to addiction. Investigators were also able to block the ability of repeated cocaine exposure, to induce addiction. The findings, published online

Neuroscience | Source: The Mount Sinai Hospital / Mount Sinai School of Medicine | Views: 53 | Comments: 0
'Housekeeping' mechanism for brain stem cells discovered

Researchers at Columbia University Medical Center (CUMC) have identified a molecular pathway that controls the retention and release of the brain's stem cells. The discovery offers new insights into normal and abnormal neurologic development and could eventually lead to regenerative therapies for neurologic disease and injury. The findings, from a collaborative eff

Stem cells | Source: Columbia University Medical Center | Views: 168 | Comments: 1
Liver tells all and reveals truth about fat

Dr Barbara Fam from the University's Molecular Obesity Laboratory group at Austin Health with Associate Professor Sof Andrikopoulos have discovered that the liver can directly talk to the brain to control the amount of food we eat.

Neuroscience | Source: University of Melbourne | Views: 307 | Comments: 0
Alzheimer's plaques disrupt brain networks

Scientist studying the way Alzheimer's takes root in the brain have identified important new similarities between a mouse model and human Alzheimer's.

Neuroscience | Source: Washington University School of Medicine | Views: 204 | Comments: 0
New stem cell found in the brain

Researchers at Lund University in Sweden have discovered a new stem cell in the adult brain. These cells can proliferate and form several different cell types - most importantly, they can form new brain cells. Scientists hope to take advantage of the finding to develop methods to heal and repair disease and injury in the brain.

Neuroscience | Source: Van Andel Research Institute | Views: 217 | Comments: 0
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