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Cerebral small vessel disease is a significant cause of aging-related mental decline and accounts for almost half of all dementia cases globally.

Sudok1/iStock.

The research, published in the journal Stem Cell Reports, also suggests a possible drug target to prevent or treat the condition known as cerebral small vessel disease (SVD).

Continue reading “Cambridge team grows blood vessels to investigate brain diseases” »

This is almost like endowing a printer with a set of eyes and a brain, where the eyes observe what is being printed, and then the brain of the machine directs it as to what should be printed next.

Moritz Hocher.

Traditional systems use nozzles to deposit tiny drops of resin, smoothed over with a scraper or roller and then curved with UV light. However, this smoothing limits the materials that could be used since slow-curing resins could be squished or smeared.

Continue reading “This new 3D printer has eyes, a brain, and prints perfectly” »

As implanted devices and commercial headsets advance, what will the real-world impacts be?

Scientists from Centogene, a company focused on rare and neurodegenerative diseases, along with their collaborators at University College London and elsewhere have published a study that links the Acyl-CoA Binding Domain Containing 6 (ACBD6) gene to new forms of early-onset dystonia and parkinsonism. The study is published in Brain in a paper titled, “Bi-allelic ACBD6 variants lead to a neurodevelopmental syndrome with progressive and complex movement disorders.”

Using whole exome sequencing data from 45 patients—23 males and 22 females between the ages of 1 and 50 years old—the researchers identified several novel and ultra-rare bi-allelic predicted loss-of-function variants in ACBD6, which are linked to a unique neurodevelopmental syndrome. The condition is accompanied by complex and progressive cognitive and movement disorders such as dystonia in 94% of cases and parkinsonism in older patients or about 32% of cases.

To test the association between ACBD6 and the syndrome, the researchers used zebrafish and frog knockouts. According to tests described in the paper, they observed similar phenotypes to those of affected individuals such as movement disorders, seizures, and facial dysmorphology in the zebrafish models. Their observations of the effects in zebrafish suggest “a combination of muscle and neuronal degeneration leading to movement abnormalities” resulting from the loss of the gene. When they assessed the effects of inactivating the gene in frogs, they observed reported failures in cell movement during gastrulation as a result of the gene’s loss.

Summary: Researchers made a breakthrough in memory research by genetically modifying the LIMK1 protein, crucial for memory, to be controlled by the drug rapamycin.

This study demonstrates the ability to enhance memory functions by manipulating synaptic plasticity in the brain.

The engineered protein showed significant memory improvement in animal models with age-related cognitive decline, offering potential for innovative treatments for neuropsychiatric diseases like dementia. This ‘chemogenetic’ approach, blending genetics and chemistry, opens new avenues in neurological research and therapy.

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Continue reading “Slow Wave Sleep % Loss Is Associated With An Increased Dementia Risk” »

Summary: Researchers developed an experimental computing system, resembling a biological brain, that successfully identified handwritten numbers with a 93.4% accuracy rate.

This breakthrough was achieved using a novel training algorithm providing continuous real-time feedback, outperforming traditional batch data processing methods which yielded 91.4% accuracy.

The system’s design features a self-organizing network of nanowires on electrodes, with memory and processing capabilities interwoven, unlike conventional computers with separate modules.

Back in 2021, a test of cephalopod smarts reinforced how important it is for us humans to not underestimate animal intelligence.

Cuttlefish were given a new version of the marshmallow test, and the results may demonstrate that there’s more going on in their strange little brains than we knew.

Their ability to learn and adapt, the researchers said, could have evolved to give cuttlefish an edge in the cutthroat eat-or-be-eaten marine world they live in.

A pair of studies from the laboratory of Evangelos Kiskinis, Ph.D., associate professor in the Ken and Ruth Davee Department of Neurology’s Division of Neuromuscular Disease and of Neuroscience, have uncovered novel cellular mechanisms that are involved in two types of genetic amyotrophic lateral sclerosis, or ALS.

The findings, published in Science Advances and Cell Reports, improve the understanding of ALS, a progressive neurodegenerative disease that attacks motor neurons in the brain and spinal cord, and provides support for the future development of targeted therapies.

An estimated 32,000 individuals are currently living with ALS in the U.S., according to the Les Turner ALS Foundation. There are two types of ALS: sporadic (non-genetic), which makes up more than 90% of all ALS cases, and familial (genetic).