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Archive for the ‘neuroscience’ category: Page 697

Jan 22, 2020

Brain organoids may shed light on seizures in Angelman syndrome

Posted by in categories: genetics, neuroscience

The mutation that causes Angelman syndrome makes neurons hyperexcitable, according to a study in brain organoids and mice1. The findings may help explain why about 90 percent of people with the syndrome experience seizures that do not respond to treatment.

Angelman syndrome is a rare genetic condition linked to autism. It is caused when the maternal copy of a gene called UBE3A is either missing or mutated. Apart from seizures, the condition is characterized by developmental delay, problems with balance and speech, and an unusually happy disposition.

The new study found that mutations in UBE3A suppress the production of proteins that keep the activity of ‘big potassium’ ion channels in check. These channels control the flow of large amounts of potassium ions passing through neurons. When the current increases in the absence of UBE3A, the neurons become exceptionally excitable.

Jan 22, 2020

People with Autism have excess of immune cells in their brains

Posted by in category: neuroscience

Read more.

Jan 22, 2020

Calling an Illness “Psychosomatic” Doesn’t Mean It’s Imaginary

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

Placebo effects, exercise highs, getting sick when you’re stressed out—the popular press and the scientific literature alike are replete with examples of how the mind or mental processes influence our health and well-being. This “mind-body connection” is essential for normal organ function and also is viewed as the basis for psychosomatic disorders. Yet the concept that our thoughts can influence the function of a variety of organ systems is often viewed with some skepticism,…


Recent experiments have begun mapping the neuronal connections between mind and body like never before.

Jan 22, 2020

America’s most widely consumed oil causes genetic changes in the brain

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

New UC Riverside research shows soybean oil not only leads to obesity and diabetes, but could also affect neurological conditions like autism, Alzheimer’s disease, anxiety, and depression.

Used for fast food frying, added to packaged foods, and fed to livestock, soybean oil is by far the most widely produced and consumed edible oil in the U.S., according to the U.S. Department of Agriculture. In all likelihood, it is not healthy for humans.

It certainly is not good for mice. The new study, published this month in the journal Endocrinology, compared mice fed three different diets high in fat: soybean oil, soybean oil modified to be low in linoleic acid, and coconut oil.

Jan 22, 2020

The Most Complete Brain Map Ever Is Here: A Fly’s ‘Connectome’

Posted by in category: neuroscience

It took 12 years and at least $40 million to chart a region about 250 micrometers across—about the thickness of two strands of hair.

Jan 22, 2020

What Neuroscience Can Teach Us About Aging Better

Posted by in categories: life extension, neuroscience

“A neuroscientist explains how our brains age and provides tips for aging with more vitality and happiness.”

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Jan 22, 2020

How AI and neuroscience drive each other forwards

Posted by in categories: neuroscience, robotics/AI

Bringing together artificial intelligence and neuroscience promises to yield benefits for both fields.

Jan 21, 2020

Why Gene Editors Like CRISPR/Cas May Be a Game-Changer for Neuroweapons

Posted by in categories: bioengineering, biotech/medical, genetics, governance, health, neuroscience, policy, surveillance

This year marks the Eighth Review Conference (RevCon) of the Biological Toxins and Weapons Convention (BWC). At the same time, ongoing international efforts to further and more deeply investigate the brain’s complex neuronal circuitry are creating unprecedented capabilities to both understand and control neurological processes of thought, emotion, and behavior. These advances have tremendous promise for human health, but the potential for their misuse has also been noted, with most discussions centering on research and development of agents that are addressed by existing BWC and Chemical Weapons Convention (CWC) proscriptions. In this article, we discuss the dual-use possibilities fostered by employing emergent biotechnologic techniques and tools—specifically, novel gene editors like clustered regular interspaced short palindromic repeats (CRISPR)—to produce neuroweapons. Based on our analyses, we posit the strong likelihood that development of genetically modified or created neurotropic substances will advance apace with other gene-based therapeutics, and we assert that this represents a novel—and realizable—path to creating potential neuroweapons. In light of this, we propose that it will be important to re-address current categorizations of weaponizable tools and substances, so as to better inform and generate tractable policy to enable improved surveillance and governance of novel neuroweapons.

Keywords: : CRISPR, Gene editing, Neuroweapon, Neurotherapeutic pathways, Dual-use neuroscience, Biosecurity policy.

T his year marks the Eighth Review Conference (RevCon) of the Biological Toxins and Weapons Convention (BWC), the purpose of which is to ensure that the convened parties’ directives continue to be relevant to and viable for prohibiting the development, production, and stockpiling of biological weapons in the face of newly emerging scientific advancements and biotechnologies. Apropos of issues raised at previous RevCons and elsewhere, there are growing concerns about current and future weaponization of neurobiological agents and tools (ie, “neuroweapons”1–6).

Jan 21, 2020

The FDA Just Expanded Access to MDMA as a Therapy for PTSD

Posted by in categories: biotech/medical, neuroscience

Under the FDA’s Expanded Access program, more folks can legally get access to medical-grade MDMA for psychotherapy.

Jan 21, 2020

How Researchers Used AI to Better Understand Biological Vision

Posted by in categories: biological, neuroscience, robotics/AI

A few years back, DeepMind’s Demis Hassabis famously prophesized that AI and neuroscience will positively feed into each other in a “virtuous circle.” If realized, this would fundamentally expand our insight into intelligence, both machine and human.

We’ve already seen some proofs of concept, at least in the brain-to-AI direction. For example, memory replay, a biological mechanism that fortifies our memories during sleep, also boosted AI learning when abstractly appropriated into deep learning models. Reinforcement learning, loosely based on our motivation circuits, is now behind some of AI’s most powerful tools.

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