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Archive for the ‘neuroscience’ category: Page 164

Feb 26, 2023

New Hope for Treatment of Rare Metabolic Brain Disease

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

X-ALD is the most prevalent of the approximately 50 rare diseases that affect the white matter of the brain, referred to as leukodystrophies. The genetic damage in X-ALD is due to a defect in the X chromosome. Men who are affected by X-ALD experience a progressive deterioration of their mobility, balance, and sensory abilities, leading to issues such as incontinence and sexual dysfunction.

Although X-ALD is inherited through the X chromosome, female carriers can also experience symptoms of the disease. Approximately 30% of male children and 60% of adult men develop encephalitis, which is a fatal form of the disease that leads to death within two to three years. X-ALD affects roughly one in every 20,000 births globally.

Now, for the first time, scientists from all relevant leukodystrophy centers in Europe and the US have jointly succeeded in obtaining controlled trial data for X-linked adrenoleukodystrophy. Of the 116 patients, 77 received the drug leriglitazone and 39 a placebo. The drug had already shown in preclinical studies that it can prevent neurodegeneration and offer protection against the life-threatening inflammation of the brain.

Feb 26, 2023

Einstein on Free Will and the Power of the Imagination

Posted by in category: neuroscience

Human being, vegetables or cosmic dust, we all dance to an invisible tune, intoned in the distance by a mysterious player.

Feb 26, 2023

A Roadmap to Rejuvenation: Targeting the Hallmarks of Aging

Posted by in categories: biotech/medical, life extension, neuroscience

Aging is a complex process, a river fed by several tributaries connected by countless interweaving streams. Its direction is set inexorably towards infirmity, or so it would first appear. Daunting as navigation may seem, their interrelatedness should inspire hope instead of fear.

Aging is undeniably the root of the most common and costly noncommunicable diseases in the developed world, as well as a predisposing factor to severe or fatal reactions to infectious ones. Whatever can be done to slow, halt, or reverse its course holds inestimable economic and humanitarian value (Lee, 2017).

The hallmarks of aging were assembled to broadly conceptualize what lies behind phenomena as seemingly unrelated as gray hair, wrinkles, heart disease, cognitive decline, and cancer. They serve as explanations for why everything from our joints to our eyesight steadily give out over time.

Feb 26, 2023

New MS treatment targets the gut microbiome

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

A new study suggests that we may be able to prevent chronic inflammation in multiple sclerosis (MS) patients in a totally new way, by manipulating their gut microbiomes — the unique collection of microbes that live in our digestive tracts and play an important role in our health.

“We are approaching the search for multiple sclerosis therapeutics from a new direction,” said lead researcher Andrea Merchak from the University of Virginia (UVA).

Chronic inflammation: The immune system fights infections and heals injuries by sending inflammatory cells to the site of the problem. This process, inflammation, can cause pain, swelling, or other side effects, but ultimately, it’s for the greater good.

Feb 26, 2023

Scientists have successfully recorded brain activity from freely moving octopuses

Posted by in categories: biological, neuroscience, physics

Dr. Tamar Gutnick, first author and former postdoctoral researcher in the Physics and Biology Unit at the Okinawa Institute of Science and Technology (OIST), said, “If we want to understand how the brain works, octopuses are the perfect animal to study as a comparison to mammals. They have a large brain, an amazingly unique body, and advanced cognitive abilities that have developed completely differently from those of vertebrates.”

Octopuses have eight powerful and ultra-flexible arms, which can reach anywhere on their body. If we tried to attach wires to them, they would immediately rip it off, so we needed to get the equipment out of their reach by placing it under their skin.”

Continue reading “Scientists have successfully recorded brain activity from freely moving octopuses” »

Feb 25, 2023

Why we can dream in more than one language

Posted by in category: neuroscience

Sleep has a more powerful role in language-learning than was previously thought. What does this reveal about our night-time brain?

Feb 25, 2023

A new epigenetic brain defense against recurrence of opioid use

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

Substance use disorder (SUD) is an extremely difficult disorder to overcome, and many individuals with SUD return to regular use after repeated attempts to quit.

A return to regular can be caused by the body’s physical dependence on the drug as well as experiences associated with prior drug use. Exactly how these drug associations are formed in the brain and how they trigger a return to drug use remain unclear.

“Individuals make long-lasting associations between the euphoric experience of the drug and the people, places and things associated with drug use,” said Christopher Cowan, Ph.D. professor in the Department of Neuroscience at the Medical University of South Carolina (MUSC) and member of the Brain and Behavior Research Foundation Scientific Council.

Feb 25, 2023

Brain-Emulation-Roadmap-Report.pdf

Posted by in category: neuroscience

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Feb 25, 2023

Synthetic hydrogels enable neuronal tissue growth in areas of brain damage

Posted by in categories: biotech/medical, neuroscience

Synthetic hydrogels were shown to provide an effective scaffold for neuronal tissue growth in areas of brain damage, providing a possible approach for brain tissue reconstruction.

While growing brains may sound like something out of a science fiction movie, a cross-disciplinary team of researchers at Hokkaido University have made a step in that direction. They used hydrogel materials, in combination with neural stem cells, to grow new brain tissue. This is important since, when tissue in our brain is damaged, the neuronal tissue does not have the same regenerative capacity as other parts of our body such as skin.

The first step for researchers was to develop a hydrogel material in which neural stem cells could survive. They found that a neutral gel made with equal parts positively and negatively charged monomers resulted in the best cell adhesion. Researchers then adjusted the ratios of crosslinker molecules to achieve a stiffness similar to that of brain tissue; pores were then created in the gel in which cells could be cultured.

Feb 25, 2023

Fnhum-13–00044.Pdf

Posted by in category: neuroscience

Genes cells and brain areas of intelligence.


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