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Archive for the ‘neuroscience’ category: Page 357

Dec 23, 2022

How the Brain Stores Remote Fear Memory

Posted by in category: neuroscience

Summary: Remote fear memories, or memories of trauma formed in the distant past, are stored in the connections between neurons in the prefrontal cortex.

Source: UCR

A remote fear memory is a memory of traumatic events that occurred in the distant past—a few months to decades ago. A University of California, Riverside, mouse study published in Nature Neuroscience has now spelled out the fundamental mechanisms by which the brain consolidates remote fear memories.

Dec 23, 2022

Incredible medical breakthroughs of 2022, from treating blood cancer to slowing Alzheimer’s disease

Posted by in categories: biotech/medical, neuroscience

From a vaccine for respiratory syncytial virus (RSV) to an infusion that slowed down Alzheimer’s for some people with the disease, here are three momentous advances from 2022.

An RSV vaccine showed promise for the first time in 50-years

Two vaccines are poised to be approved for RSV by the end of 2023, according to their makers, after almost 50-years without any meaningful progress.

Dec 23, 2022

Research shows fatty liver disease endangers brain health

Posted by in categories: biotech/medical, health, neuroscience

In a study examining the link between non-alcoholic fatty liver disease (NAFLD) and brain dysfunction, scientists at the Roger Williams Institute of Hepatology, affiliated to King’s College London and the University of Lausanne, found an accumulation of fat in the liver causes a decrease in oxygen to the brain and inflammation to brain tissue—both of which have been proven to lead to the onset of severe brain diseases.

The paper appears in the Journal of Hepatology.

NAFLD affects approximately 25% of the population and more than 80% of morbidly obese people. Several studies have reported the negative effects of an unhealthy diet and obesity can have on however this is believed to be the first study that clearly links NAFLD with deterioration and identifies a potential therapeutic target.

Dec 22, 2022

New Sensor Uses MRI to Detect Light Deep in the Brain

Posted by in categories: biotech/medical, neuroscience

Summary: Researchers have developed a new specialized MRI sensor that detects light deep within brain tissue.

Source: MIT

Using a specialized MRI sensor, MIT researchers have shown that they can detect light deep within tissues such as the brain.

Dec 22, 2022

Cutting Brain-gut Vagus Nerve Lessens Loss of Myelin in MS Mice

Posted by in category: neuroscience

Severing the lower part of the vagus nerve that connects the brain and gut led to less myelin loss in a mouse model used to study MS.

Dec 22, 2022

Glass act: Scientists reveal secrets of frog transparency

Posted by in category: neuroscience

WASHINGTON (AP) — Now you see them, now you don’t.

Some frogs found in South and Central America have the rare ability to turn on and off their nearly transparent appearance, researchers report Thursday in the journal Science.

During the day, these nocturnal frogs sleep by hanging underneath tree leaves. Their delicate, greenish transparent forms don’t cast shadows, rendering them almost invisible to birds and other predators passing overhead or underneath.

Dec 22, 2022

Billionaires are investing in brain-computer-interface systems. Here’s why

Posted by in categories: computing, neuroscience

The technology has significantly progressed in the past 50 years.

Earlier this month, we reported that Bill Gates and Jeff Bezos-backed foundations (Gates Frontier and Bezos Expeditions) joined other companies.

Continue reading “Billionaires are investing in brain-computer-interface systems. Here’s why” »

Dec 22, 2022

Shutting down a mysterious gene can help patients get rid of the deadliest brain cancer

Posted by in categories: biotech/medical, neuroscience

The deadly brain cancer is no longer a mystery.

Glioblastoma is one of the most dangerous cancer types affecting the human brain and spinal cord. Over 240,000 people lose their lives because of nervous system cancer annually, and in most of these cases, the leading cause of death is glioblastoma.

Its tumors spread fast and induce highly painful seizures and headaches. What’s worse is that there is no known 100 percent effective cure for this disease. US president Joe Biden’s eldest son Beau Biden and late American actor Robert Forster were also among the many victims of glioblastoma.

Dec 22, 2022

Drugmakers Are Testing Ways to Stop Alzheimer’s Before It Starts

Posted by in categories: biotech/medical, neuroscience

Compounds in final-stage trials at Eli Lilly and Eisai may halt brain protein buildup linked to cognitive decline.

Dec 22, 2022

Big dynorphin may protect neurons from the accumulation of Alzheimer’s-associated amyloid

Posted by in categories: biotech/medical, computing, neuroscience

𝐀𝐥𝐳𝐡𝐞𝐢𝐦𝐞𝐫’𝐬 𝐃𝐢𝐬𝐞𝐚𝐬𝐞


One of the main features of Alzheimer’s disease is that the β-amyloid peptide, a molecule found inside neurons that has many diverse functions, begins to fold incorrectly and accumulates. This process, which ends up causing neuronal death, is linked to a series of other cellular alterations, making it difficult to determine whether they are the cause or the consequence. An example is the case of the deregulation of a type of dynorphin.

Dynorphins are the body’s own opioid peptides, which play a key role in many brain pathways. They are located in different areas of the brain, such as the hippocampus, amygdala or hypothalamus, and are involved in memory processes, emotion control, stress and pain, and among other processes. In addition, several studies have shown their involvement in epilepsy, stroke, addictions, depression and schizophrenia.

Continue reading “Big dynorphin may protect neurons from the accumulation of Alzheimer’s-associated amyloid” »

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