Ethicists from the University of Basel have outlined a new biosecurity framework specific to neurotechnology. While the researchers declare an outright ban of dual-use technology ethically unjustified, they call for regulations aimed at protecting the mental privacy and integrity of humans. The journal Neuron has published the study. The term “dual-use” refers to technology that can be used…
UCLA researchers have developed the first map of gene regulation in human neurogenesis, the process by which neural stem cells turn into brain cells and the cerebral cortex expands in size. The scientists identified factors that govern the growth of our brains and, in some cases, set the stage for several brain disorders that appear later in life. The human brain differs from that of mice and…
It is wartime. You and your fellow refugees are hiding from enemy soldiers, when a baby begins to cry. You cover her mouth to block the sound. If you remove your hand, her crying will draw the attention of the soldiers, who will kill everyone. If you smother the child, you’ll save yourself and the others. If you were in that situation, which was dramatized in the final episode of the ’70s and…
Testing the level of caffeine in the blood may provide a simple way to aid the diagnosis of Parkinson’s disease, according to a study published in the online issue of Neurology, the medical journal of the American Academy of Neurology. The study found that people with Parkinson’s disease had significantly lower levels of caffeine in their blood than people without the disease, even if they…
Even if the World Health Organization finalizes ICD-11 in May, it will take years for U.S. doctors to start using the next classification system. Hospital executives and staff reading that the next iteration of the International Classification of Diseases system will contain a new code for diagnosing patients with so-called gaming disorder might get a chuckle from it. They may laugh a little more…
Exercising twice a week may improve thinking ability and memory in people with mild cognitive impairment (MCI), according to a guideline released by the American Academy of Neurology. The recommendation is an update to the AAN’s previous guideline on mild cognitive impairment and is published in the online issue of Neurology, the medical journal of the American Academy of Neurology. The…
Gene expression in specific cells and in specific regions can provide a more precise, neuroprotective approach than traditional treatments for neurological diseases. For multiple sclerosis, specifically, increasing cholesterol synthesis gene expression in astrocytes of the spinal cord can be a pathway to repair nerves that affect walking.
While cognitive abilities naturally decline with age, eating one serving of leafy green vegetables a day may aid in preserving memory and thinking skills as a person grows older, according to a study by researchers at Rush University Medical Center in Chicago. The study results were published in Neurology, the medical journal of the American Academy of Neurology. “Adding a daily serving of…
About 15 million Americans will have either Alzheimer’s dementia or mild cognitive impairment by 2060, up from approximately 6.08 million this year, according to a new study by researchers at the UCLA Fielding School of Public Health. The findings highlight the need to develop measures that could slow the progression of the disease in people who have indications of neuropathological changes…
Just how it works is not known - but human beings have an internal clock which enables us to perceive and estimate periods of time subconsciously. A research team under Dr. Roland Thomaschke of the University of Freiburg’s Department of Psychology showed in experiments that this mental time-processing system is able to adapt quickly and flexibly to predictive time patterns. The study has been…
New navigation imaging and neurophysiological stimulation techniques enable an approach to brain tumours long considered unresectable before and during surgery, but not one does it quite as well as ultrasound, according to a leading Spanish neurosurgeon.
Want to restore hearing by injecting stem cells into the inner ear? Well, that can be a double-edged sword. Inner ear stem cells can be converted to auditory neurons that could reverse deafness, but the process can also make those cells divide too quickly, posing a cancer risk, according to a study led by Rutgers University–New Brunswick scientists. The encouraging news is that turning stem…
A clinical trial involving hundreds of participants has shown that one of the most frequently prescribed antidepressants may not benefit millions of patients who also have chronic kidney disease (CKD). “These results provide evidence that could change clinical practice,” said Dr. Susan Hedayati, Professor of Internal Medicine at UT Southwestern and first author of the study, which was…
Immune cells are normally associated with fighting infection but in a new study, scientists have discovered how they also help the nervous system clear debris, making way for nerve regeneration after injury. In a study published in the Journal of Neuroscience, researchers from Case Western Reserve University School of Medicine showed certain immune cells—neutrophils—can clean up nerve debris,…
A long-term study of nearly 3,000 adults, aged 57 to 85, found that those who could not identify at least four out of five common odors were more than twice as likely as those with a normal sense of smell to develop dementia within five years. Although 78 percent of those tested were normal – correctly identifying at least four out of five scents – about 14 percent could name just three out…
People with both high and low levels of magnesium in their blood may have a greater risk of developing dementia, according to a study published in Neurology, the medical journal of the American Academy of Neurology.
Scientists have helped provide a way to better understand how to enable drugs to enter the brain and how cancer cells make it past the blood brain barrier.
Dr. Wolf M. Harmening from University Eye Hospital Bonn, together with American colleagues, studied color vision by probing individual sensory cells – photoreceptors – in the human eye. The results reveal that proximity effects play a key role in how we perceive colors.
The stimulant methamphetamine, also popularly known as ‘speed,’ ‘ice’ and ‘meth,’ is linked to a heightened risk of stroke among young people, reveals a review of the available evidence, published online in the Journal of Neurology Neurosurgery & Psychiatry.
A largely aged population is already a reality in some countries, and this will become a worldwide problem by 2047, when the number of the Earth’s old people is likely to surpass the number of young people.
Patients with Alzheimer's disease (AD) have a larger caudate nucleus, a brain area involved in habits and used to navigate in the environment on an autopilot mode, shows for the first time a Canadian-Norwegian study published in Acta Neurologica Scandinavica. Not good news, you may think. Hold on, this could open new research avenues for AD.
A genetic study identifies neuronal circuits responsible for ultrasonic calls uttered by mouse pups. The cries of human babies may well depend on similar connections, which could also be impaired in speech disorders.
A natural compound in strawberries could help treat age-related mental decline and conditions like Alzheimer’s, a new study found.
Researchers have taken an in-depth look at the function of a gene that may be linked to the development of major depression. Their findings show that its activity levels might determine our susceptibility to stress and negative stimuli.
Researchers have identified gut microbiota that interact with brain regions associated with mood and behavior. This may be the first time that behavioral and neurobiological differences associated with microbial composition in healthy humans have been identified.