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Archive for the ‘neuroscience’ category: Page 118

Mar 9, 2024

Blocking Key Potein may Halt Progression of Alzheimer’s disease

Posted by in categories: biotech/medical, neuroscience

Researchers at the University of Colorado Anschutz Medical Campus have found that inhibiting a key protein can stop the destruction of synapses and dendritic spines commonly seen in Alzheimer’s disease.

The study, whose first author is Tyler Martinez, a student in the Pharmacology and Molecular Medicine PhD program at the University of Colorado School of Medicine, was published recently in the journal eNeuro.

The researchers, using rodent neurons, found that targeting a protein called Mdm2 with an experimental cancer drug known as nutlin, stopped neurotoxic amyloid-b peptides that accumulate in Alzheimer’s disease (AD) from overly pruning synapses.

Mar 9, 2024

Dancing cells show how the brain awakens from anesthesia

Posted by in categories: biotech/medical, neuroscience

According to a Mayo Clinic study published in Nature Neuroscience, the cells that act as the central nervous system’s first line of defense against harm also play a role in helping the brain awaken from anesthesia. This discovery could help pave the way for innovative methods that address post-anesthesia complications.

When coming out of anesthesia, more than one-third of patients can experience either extreme drowsiness or hyperactivity, a side effect called delirium. Mayo researchers found that special immune cells in the brain called microglia can act to shield neurons from the aftereffects of anesthesia to awaken the brain.

“This is the first time we’ve seen microglia enhance and boost by physically engaging the brain circuits,” says Mayo Clinic neuroscientist Long-Jun Wu, senior author of the study.

Mar 9, 2024

Long COVID may be triggered by low iron levels, scientists discover

Posted by in categories: biotech/medical, neuroscience

New research has identified iron deficiencies in the blood as a major culprit in long COVID cases.

A new report from the University of Cambridge was able to connect that low iron levels contributed to inflammation and anemia and halted healthy red blood cell production in patients just two weeks after being diagnosed with COVID-19.

Many of those individuals reported having long COVID — which has recently been associated with a frightening IQ loss from brain fog — within months, according to the study, published in Nature Immunology.

Mar 9, 2024

A Global Human Consciousness?

Posted by in categories: futurism, neuroscience

Will we ever achieve global consciousness? ANd if we could, what would that mean and even look like? A look ahead at this old idea.

Mar 9, 2024

Researchers decode neuronal basis of decision-making processes to predict actions

Posted by in categories: computing, food, neuroscience

For decades, neuroscientists have been trying to understand how we manage to make the best possible decisions. Due to technical limitations, researchers have so far had to rely on experiments in which monkeys perform tasks on computer screens while the activity of their brain cells is measured.

The animals are trained to sit still in a chair and are therefore restricted in their natural freedom of movement. Since it is now possible to wirelessly record the activity of several individual nerve cells, decision-making in scenarios with natural movement sequences can be investigated.

For the study, a team of researchers from Germany and the U.S. trained two rhesus monkeys to explore an experimental room with two button-controlled food boxes. Each time the monkeys pressed a button on one of the boxes, they had the chance to receive food pellets.

Mar 9, 2024

Electroconvulsive Therapy Really Works For Depression, And Now We Know Why

Posted by in categories: biotech/medical, engineering, neuroscience, quantum physics

A recent study conducted at Tel Aviv University has devised a large mechanical system that operates under dynamical rules akin to those found in quantum systems. The dynamics of quantum systems, composed of microscopic particles like atoms or electrons, are notoriously difficult, if not impossible, to observe directly.

However, this new system allows researchers to visualize occurring in specialized “topological” materials through the movement of a system of coupled pendula.

The research is a collaboration between Dr. Izhar Neder of the Soreq Nuclear Research Center, Chaviva Sirote-Katz of the Department of Biomedical Engineering, Dr. Meital Geva and Prof. Yair Shokef of the School of Mechanical Engineering, and Prof. Yoav Lahini and Prof. Roni Ilan of the School of Physics and Astronomy at Tel Aviv University and was recently published in the Proceedings of the National Academy of Sciences.

Mar 9, 2024

Fully bioresorbable hybrid opto-electronic neural implant system for simultaneous electrophysiological recording and optogenetic stimulation

Posted by in categories: genetics, neuroscience

Bioresorbable neural implants offer a promising solution to the challenges of secondary surgeries required for the removal of implanted devices. Here, the authors introduce a fully bioresorbable flexible hybrid opto-electronic system for simultaneous electrophysiological recording and optogenetic stimulation.

Mar 9, 2024

The Neurorights Foundation

Posted by in category: neuroscience

New article from the International Bar Association @IBAnews on Neurorights and the various ethical considerations involved with neurotechnology. Read here: https://www.ibanet.org/neurotechnologies-protection-against-…ata— The NeuroRights Foundation (@neuro_rights) October 30, 2023.

Mar 8, 2024

Intriguing science discoveries of 2023

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

science images
This year, Rockefeller scientists plumbed the depths of wound repair and tackled how songbirds solve problems; they used microchips to grow mini-lungs and proposed an environmental trigger for multiple sclerosis. Efforts to combat COVID, Hepatitis B, and other infections bore fruit, and countless papers shed light on basic research, answering questions that have long baffled biologists. Here are some of the intriguing discoveries that came out of Rockefeller in 2023.

Old sperm, new mutations

As the male reproductive system ages, it becomes more and more susceptible to mutations. New research from the laboratory of Li Zhao explored this phenomenon in fruit flies, by focusing on how mutations arise during the formation of sperm. The team found that, while mutations are common in the testes of both young and old flies, the repair mechanisms that remove those mutations and maintain genomic integrity during spermatogenesis become less efficient in older individuals, leading to the accumulation and persistence of more mutations in older flies.

Mar 8, 2024

The Mental Health Crisis Among Gen Z Girls: Causes and Impact

Posted by in category: neuroscience

Freya India is a writer and journalist focussed on female mental health and modern culture. Gen Z girls are not doing ok. No matter how badly you think men have it right now (and they do), girls are doing no better.

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