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Tag: "brain" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...childs formation of a bundle of nerve cells in the brain called the suprachiasmatic nucleus which act as a signaling system that tunes the bodys internal clock. This signaling system helps to properly regulate daily rhythms of waking, sleeping, even hunger that is, if its formation has not been disrupte...

Scratch no more: Gene for itch sensation discovered

...knew which gene was responsible for itching in the brain or in the spinal cord until now." In fact, Chen's team became interested in GRPR because they were looking for genes in the pain pathway. Among potential pain-sensing genes they identified, GRPR stood out because it is present in only a few nerve ce...

Brain inflammation may be friend, not foe, for Alzheimer's patients

Inflammation in the brain may not be so bad after all when it comes to Alzhe...mes to parsing out damage after a stroke and other brain injuries, seems to do the opposite in Alzheimer’s disease, protecting the brain and helping get rid ...

Math that powers spam filters used to understand how brain learns to move our muscles

...tes” of human muscle movements to explain how the brain draws on both what it recently learned and what it...olleagues built the new model, says the artificial brain in the computer, like its natural counterpart, is guided in part by a special kind of statistical “p...

Old memory traces in brain may trigger chronic pain

...ntal cortex, the site of emotion and learning. The brain seems to remember the injury as if it were fresh a...persistent nerve pain by targeting the part of the brain that experiences the emotional suffering of pain. The drug is D-Cycloserine, which has been used to ...

Modeling the restless brain

...porns and Christopher Honey find the 98 percent of brain activity that other researchers consider just back...patterns. Sporns and Honey's work on modeling this brain activity sheds new light on how and when these mysterious fluctuations occur and offers insights int...

Research team identifies new Alzheimer's gene

...gest the healthy form of the GAB2 gene may protect brain cells from developing tangles, one of the hallmark...at the GAB2 gene is unusually active in vulnerable brain cells from Alzheimer’s patients and that the GAB2 protein produced by this gene is present in those ...

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

...reted during eating and binds to a receptor in the brain called MC4R. When this “communication” occurs on a substantial level, the brain sends out a signal that one feels “full.” The young Hebrew university researchers developed a n...

Brain holds clues to bipolar disorder

Looking into the brain is yielding vital clues to understanding, diagnosi... Clinic of UPMC, will discuss the emerging role of brain imaging techniques in psychiatry in general as well as in bipolar disorder. Using neuroimaging, Dr. ...

Dual-imaging technique useful before -- and during -- brain surgery

...e the functional abilities of patients who undergo brain surgery. Neuroradiologist James Leach, MD, and h...r tractography” data to outline important areas of brain function and their connections prior to surgery—and then transfer that data to the operating room to...

Stroke study sheds light on left-right brain divide

...earch identified the role of the right side of the brain in noticing and correcting errors. The research f...damage to the frontal lobes, the front part of the brain which is known to be responsible for aspects of language, decision making and learning. The team fou...

Newly discovered antibody may be body's natural defense against Alzheimer's

...loid proteins called "oligomers" that are toxic to brain cells, while ignoring the benign single-molecule f... grow into insoluble "fibrils" that cluster around brain cells and are a hallmark of Alzheimer's disease. While monomers are produced from birth and appear t...

Researchers reveal structure of protein altered in autism

...enance occurs early in development when the infant brain is still plastic and formative. Therefore, by understanding the structural mutations that affect neurotransmission during development, new leads into drug therapies may emerge. “We really don’t know what causes autism, but this research represe...

Penn researchers link cell's protein recycling systems

... eye, a neuron-rich tissue, as a surrogate for the brain because it is easy to visualize. They discovered that making the lysosomal system more or less active dramatically influenced the severity of neurodegeneration. “We found that whenever we knocked the lysosome system down, neurodegeneration always...

Study finds mix of disease processes at work in brains of most people with dementia

...arkinson’s disease, hemorrhages, tumors, traumatic brain injury or others. Comparison of the clinical and autopsy results showed that only 30 percent of people with signs of dementia had Alzheimer’s disease alone. By contrast, 42 percent of the people with dementia had Alzheimer’s disease with infarcts...

Blood-brain barrier breached by new therapeutic strategy

... treatment of infections and other diseases of the brain is the blood-brain barrier, which prevents systemi...can carry a strip of therapeutic material into the brain via intravenous administration. Once delivered to the nerve cells of the brain, the strip, called a ...

Researchers identify protein pathway involved in Parkinson disease development

...s system resulting from the loss of neurons in the brain that produce dopamine. This lowering of dopamine leads to decreased stimulation of the brain's motor cortex. Although scientists have not known the exact cause of the loss of these dopamine-producing neurons, they believe it is related to dysfuncti...

3-D ultrasound scanner provides in-depth view of the brain

...asound scanner that might guide minimally invasive brain surgeries and provide better detection of a brain tumor’s location. The “brain scope,” which is inserted into a dime-sized hole in the skull, may be...

Turn-ons and turn-offs for neurons

Our brain consists of billions of nerve cells enabling to le..., touch, smell or fear, millions of neurons in our brain becomes active. These nerve cells communicate with each other by chemical and electrical impulses to...

Gene therapy study shows safety and statistically significant improvement in Parkinson's disease

...eport of direct gene transfer into a patient’s own brain cells for any adult neurodegenerative disease. T...om baseline in both clinical symptoms and abnormal brain metabolism (as measured by positron emission tomography, or PET scanning). Although all patients had...

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