Health News

Modifiable dementia risk factor in older adults identified

For older adults, it may seem as though the die is already cast regarding their odds of developing dementia, but new research from the University of Pittsburgh has identified a dementia risk factor among older adults that should be modifiable even well into old age. The study, which draws on data collected from following hundreds […]

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Abnormal vision in childhood can affect brain functions

A research team has discovered that abnormal vision in childhood can affect the development of higher-level brain areas responsible for things such as attention. The researchers from the University of Waterloo, University of British Columbia, and the University of Auckland uncovered differences in how the brain processes visual information in patients with various types of […]

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How nature, nurture shape the sleeping brain: Study of teenage twins teases apart influence of genes, environment on brain activity during sleep

Some patterns of electrical activity generated by the brain during sleep are inherited, according to a study of teenage twins published in JNeurosci. Pinpointing the relative contributions of biology and experience to sleep neurophysiology could inform therapies for numerous psychiatric disorders in which alterations in brain activity during sleep can be detected. Leila Tarokh and […]

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Nerve cells in the human brain can ‘count’

How do we know if we’re looking at three apples or four? Researchers at the Universities of Bonn and Tübingen are now one step closer to answering this question. They were able to demonstrate that some brain cells fire mainly for quantities of three, others for quantities of four and others for other quantities. A […]

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New sensors track dopamine in the brain for more than year: Tiny probes could be useful for monitoring patients with Parkinson’s and other diseases

Dopamine, a signaling molecule used throughout the brain, plays a major role in regulating our mood, as well as controlling movement. Many disorders, including Parkinson’s disease, depression, and schizophrenia, are linked to dopamine deficiencies. MIT neuroscientists have now devised a way to measure dopamine in the brain for more than a year, which they believe […]

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Heart attack: Substitute muscle thanks to stem cells

Myocardial infarction — commonly known as a heart attack — is still one of the main causes of death. According to the Federal Statistical Office, more than 49,00 people died of its consequences. And yet the mortality after heart attack has greatly decreased over the past decades: As compared to the early 1990s, it has […]

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Canine melanoma study identifies genetic basis of disease; potential drug targets: Discoveries among dogs could someday lead to improved genome-based cancer treatments for both dogs and humans

As a veterinarian, Dr. Carolyn Duregger is familiar with the telltale signs of canine melanoma. So when she gave her own dog, Parker, a routine oral examination, the 1-centimeter-diameter discolored lump in the pup’s upper right gums took her breath away. “It’s an aggressive cancer with poor prognosis that I’ve seen many times. My stomach […]