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Archive for the ‘neuroscience’ category: Page 140

Apr 3, 2024

A new computational technique could make it easier to engineer useful proteins

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

To engineer proteins with useful functions, researchers usually begin with a natural protein that has a desirable function, such as emitting fluorescent light, and put it through many rounds of random mutation that eventually generate an optimized version of the protein.

This process has yielded optimized versions of many important proteins, including green fluorescent protein (GFP). However, for other proteins, it has proven difficult to generate an optimized version. MIT researchers have now developed a computational approach that makes it easier to predict mutations that will lead to better proteins, based on a relatively small amount of data.

Using this model, the researchers generated proteins with mutations that were predicted to lead to improved versions of GFP and a protein from adeno-associated virus (AAV), which is used to deliver DNA for gene therapy. They hope it could also be used to develop additional tools for neuroscience research and medical applications.

Apr 3, 2024

Ever Wanted a Brain Transplant? Here Are The Challenges We Face

Posted by in categories: biotech/medical, neuroscience

The neurosurgeon Sergio Canavero announced in 2015 that he could soon be capable of performing the world’s first human head transplant procedure. This would mean that it would be possible to remove someone’s head, and graft it onto the neck and shoulders of another person. As of yet, this has only been performed on cadavers and not on living humans.

But suppose you want to keep the face that you’ve already got? Or have grown tired of the body you inhabit? Could it ever be possible to switch brains between bodies instead?

Continue reading “Ever Wanted a Brain Transplant? Here Are The Challenges We Face” »

Apr 3, 2024

Webb telescope detects light from an Earth-like planet

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

The brain computer interface (BCI) device can be used by inexperienced patients to play games within just a few sessions.

Apr 3, 2024

Brain Organoids as Model Systems for Genetic Neurodevelopmental Disorders

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

Neurodevelopmental disorders (NDDs) are a group of disorders in which the development of the central nervous system (CNS) is disturbed, resulting in different neurological and neuropsychiatric features, such as impaired motor function, learning, language or non-verbal communication. Frequent comorbidities include epilepsy and movement disorders. Advances in DNA sequencing technologies revealed identifiable genetic causes in an increasingly large proportion of NDDs, highlighting the need of experimental approaches to investigate the defective genes and the molecular pathways implicated in abnormal brain development. However, targeted approaches to investigate specific molecular defects and their implications in human brain dysfunction are prevented by limited access to patient-derived brain tissues. In this context, advances of both stem cell technologies and genome editing strategies during the last decade led to the generation of three-dimensional (3D) in vitro-models of cerebral organoids, holding the potential to recapitulate precise stages of human brain development with the aim of personalized diagnostic and therapeutic approaches. Recent progresses allowed to generate 3D-structures of both neuronal and non-neuronal cell types and develop either whole-brain or region-specific cerebral organoids in order to investigate in vitro key brain developmental processes, such as neuronal cell morphogenesis, migration and connectivity. In this review, we summarized emerging methodological approaches in the field of brain organoid technologies and their application to dissect disease mechanisms underlying an array of pediatric brain developmental disorders, with a particular focus on autism spectrum disorders (ASDs) and epileptic encephalopathies.

Neurodevelopmental disorders (NDDs) encompass a range of frequently co-existing conditions that include intellectual disability (ID), developmental delay (DD), and autism spectrum disorders (ASDs) (Heyne et al., 2018; Salpietro et al., 2019). ASDs represent a complex set of behaviorally defined phenotypes, characterized by impairments in social interaction, communication and restricted or stereotyped behaviors (Chen et al., 2018). Epilepsy and NDDs frequently occur together, and when refractory seizures are accompanied by cognitive slowing or regression, patients are considered to have an epileptic encephalopathy (EE) (Scheffer et al., 2017). Both ID and ASDs are clinically and etiologically heterogeneous and a unifying pathophysiology has not yet been identified for either the disorder as a whole or its core behavioral components (Myers et al., 2020). Family and twin studies suggest high (0.65–0.91) heritability (Chen et al.

Apr 3, 2024

Scientists Propose New Method To Detect Consciousness in Infants

Posted by in category: neuroscience

Academics are proposing a new and improved way to help researchers discover when consciousness emerges in human infancy.

When over the course of development do humans become conscious? When the seventeenth-century French philosopher René Descartes was asked about infant consciousness by his critics, he eventually suggested that infants might have thoughts, albeit ones that are simpler than those of adults. Hundreds of years later, the issue of when human beings become conscious is a question which remains a challenge for psychologists and philosophers alike.

But now, in response to a recent article in Trends in Cognitive Sciences, two academics from the University of Birmingham have suggested an improved way to help scientists and researchers identify when babies become conscious.

Apr 3, 2024

The new science of death: ‘There’s something happening in the brain that makes no sense’

Posted by in categories: neuroscience, science

For several years, Jimo Borjigin, a professor of neurology at the University of Michigan, had been troubled by the question of what happens to us when we die.


New research into the dying brain suggests the line between life and death may be less distinct than previously thought by .

Apr 3, 2024

It’s time to change how we think about electroshock therapy

Posted by in category: neuroscience

Electroconvulsive therapy is more effective than ketamine at treating severe depression, according to a new meta-analysis.

Apr 2, 2024

The potential of ultrasound and antibodies for Alzheimer’s disease therapy

Posted by in categories: biotech/medical, neuroscience

Professor Jürgen Götz and Dr Pranesh Padmanabhan from the Queensland Brain Institute comment on the successful human trial by the WVU Rockefeller Neuroscience Institute which found a five-fold reduction of amyloid-β in Alzheimer’s patients.

The latest trial results underscore the safety of using…

Continue reading “The potential of ultrasound and antibodies for Alzheimer’s disease therapy” »

Apr 2, 2024

World first supercomputer capable of brain-scale simulation being built at Western Sydney University

Posted by in categories: biological, neuroscience, supercomputing

😗😁😘 year 2023.


The world’s first supercomputer capable of simulating networks at the scale of the human brain has been announced by researchers at the International Centre for Neuromorphic Systems (ICNS) at Western Sydney University.

DeepSouth uses a neuromorphic system which mimics biological processes, using hardware to efficiently emulate large networks of spiking neurons at 228 trillion synaptic operations per second — rivalling the estimated rate of operations in the human brain.

Continue reading “World first supercomputer capable of brain-scale simulation being built at Western Sydney University” »

Apr 2, 2024

Mental health chatbots effective in treating depression symptoms: NTU study

Posted by in categories: biotech/medical, neuroscience, robotics/AI

Mental health chatbots can help treat symptoms of depression, according to findings from an NTU research team. These apps can interact with people to show empathy and encouragement, to improve moods. CNA spoke to Dr Laura Martinengo, Research Fellow at Lee Kong Chian School of Medicine at NTU.

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