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Archive for the ‘neuroscience’ category: Page 486

Jan 18, 2021

Better diet and glucose uptake in the brain lead to longer life in fruit flies

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

Researchers from Tokyo Metropolitan University have discovered that fruit flies with genetic modifications to enhance glucose uptake have significantly longer lifespans. Looking at the brain cells of aging flies, they found that better glucose uptake compensates for age-related deterioration in motor functions, and led to longer life. The effect was more pronounced when coupled with dietary restrictions. This suggests healthier eating plus improved glucose uptake in the brain might lead to enhanced lifespans.

The brain is a particularly power-hungry part of our bodies, consuming 20% of the oxygen we take in and 25% of the glucose. That’s why it’s so important that it can stay powered, using the glucose to produce (ATP), the “energy courier” of the body. This , known as glycolysis, happens in both the intracellular fluid and a part of cells known as the mitochondria. But as we get older, our become less adept at making ATP, something that broadly correlates with less glucose availability. That might suggest that more food for more glucose might actually be a good thing. On the other hand, it is known that a healthier diet actually leads to longer life. Unraveling the mystery surrounding these two contradictory pieces of knowledge might lead to a better understanding of healthier, longer lifespans.

A team led by Associate Professor Kanae Ando studied this problem using Drosophila . Firstly, they confirmed that brain cells in older flies tended to have lower levels of ATP, and lower uptake of glucose. They specifically tied this down to lower amounts of the enzymes needed for glycolysis. To counteract this effect, they genetically modified flies to produce more of a glucose-transporting protein called hGut3. Amazingly, this increase in glucose uptake was all that was required to significantly improve the amount of ATP in cells. More specifically, they found that more hGut3 led to less decrease in the production of the enzymes, counteracting the decline with age. Though this did not lead to an improvement in age-related damage to mitochondria, they also suffered less deterioration in locomotor functions.

Jan 16, 2021

Human Mind Control of Rat Cyborg’s Continuous Locomotion with Wireless Brain-to-Brain Interface

Posted by in categories: biological, computing, cyborgs, neuroscience

“The results showed that rat cyborgs could be smoothly and successfully navigated by the human mind to complete a navigation task in a complex maze. Our experiments indicated that the cooperation through transmitting multidimensional information between two brains by computer-assisted BBI is promising.”

(2019)


Brain-machine interfaces (BMIs) provide a promising information channel between the biological brain and external devices and are applied in building brain-to-device control. Prior studies have explored the feasibility of establishing a brain-brain interface (BBI) across various brains via the combination of BMIs. However, using BBI to realize the efficient multidegree control of a living creature, such as a rat, to complete a navigation task in a complex environment has yet to be shown. In this study, we developed a BBI from the human brain to a rat implanted with microelectrodes (i.e., rat cyborg), which integrated electroencephalogram-based motor imagery and brain stimulation to realize human mind control of the rat’s continuous locomotion. Control instructions were transferred from continuous motor imagery decoding results with the proposed control models and were wirelessly sent to the rat cyborg through brain micro-electrical stimulation. The results showed that rat cyborgs could be smoothly and successfully navigated by the human mind to complete a navigation task in a complex maze. Our experiments indicated that the cooperation through transmitting multidimensional information between two brains by computer-assisted BBI is promising.

Jan 16, 2021

Loneliness As Deadly As Smoking — How It Impacts Your Health & Longevity

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

This last year has been not been one for the social calendar. It has left us all feeling more and more isolated with lockdown after lockdown and restricted travel options globally. It is something we need to actively work to overcome, for our own sakes and for those around us, it is as detrimental to our long term health as smoking, obesity or having an alcohol disorder. It increases the risk of many health conditions, and even alters gene expressions. If you want to know even more detail I break it down in this new video, and look out for those who are having a rougher time, pay it forward. Make this world a place you want to live in…


In Loneliness As Deadly As Smoking-How It Impacts Your Health & Longevity I will be talking about how social isolation, something becoming more and more apparent in many countries and cities across the globe, is a serious threat to health and longevity.

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Jan 15, 2021

Memory May Be Preserved in Condition With Brain Changes Similar to Alzheimer’s Disease

Posted by in categories: biotech/medical, neuroscience

Summary: While 40% of people with primary progressive aphasia have underlying Alzheimer’s disease, a new study suggests they may not develop the memory problems associated with Alzheimer’s.

Source: AAN

Primary progressive aphasia is a rare neurodegenerative condition characterized by prominent language problems that worsen over time. About 40% of people with the condition have underlying Alzheimer’s disease. But a new study has found that people with the condition may not develop the memory problems associated with Alzheimer’s disease. The study is published in the January 132021, online issue of Neurology.

Jan 15, 2021

Designer cytokine makes paralyzed mice walk again

Posted by in categories: biotech/medical, neuroscience

To date, paralysis resulting from spinal cord damage has been irreparable. With a new therapeutic approach, scientists from the Department for Cell Physiology at Ruhr-Universität Bochum (RUB) headed by Professor Dietmar Fischer have succeeded for the first time in getting paralyzed mice to walk again. The keys to this are the protein hyper-interleukin-6, which stimulates nerve cells to regenerate, and the way how it is supplied to the animals. The researchers published their report in the journal Nature Communications from 15 January 2021.

Spinal cord injuries caused by sports or traffic accidents often result in permanent disabilities such as paraplegia. This is caused by damage to nerve fibers, so-called axons, which carry information from the brain to the muscles and back from the skin and muscles. If these fibers are damaged due to injury or illness, this communication is interrupted. Since severed axons in the spinal cord can’t grow back, the patients suffer from paralysis and numbness for life. To date, there are still no treatment options that could restore the lost functions in affected patients.

Jan 15, 2021

MIND and Mediterranean Diets Associated With Later Onset of Parkinson’s Disease

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

Summary: Close adherence to the MIND and Mediterranean diets delayed the onset of Parkinson’s disease by up to 17.4 years in women, and 8.4 years in men.

Source: University of British Columbia.

A new study from UBC researchers suggests a strong correlation between following the MIND and Mediterranean diets and later onset of Parkinson’s disease (PD). While researchers have long known of neuroprotective effects of the MIND diet for diseases like Alzheimer’s and dementia, this study is the first to suggest a link between this diet and brain health for Parkinson’s disease (PD).

Jan 14, 2021

Roadmap To End Aging — Understand The Hallmarks To Change Your Direction

Posted by in categories: food, life extension, neuroscience

It can be done. And it can be done sooner than many realise…even within YOUR lifetime. Imagine… Reaching triple digits with the health, fitness and body of an athletic 30 year old… It is entirely within reach now, it may be even less than a decade away. All we need to do is repair the damage that living and our metabolism create, it is slowly accumulating, which is why it takes 7 or 8 decades to rear its ugly head in most people, so one treatment should keep things under control for many years, and by then science will have advanced immeasurably, improving the treatments to whole new levels… Then you can dream of reaching 4 digits…then 5…then 6… BUT You need to stay in good enough shape to last long enough to see the treatments perfected and available. So watch your diet, your mental and physical health, your weight, and look to use occasional fasting, and time restricted eating, along with saunas and cold showers (or any hot/cold therapy), etc., to keep yourself at your optimum until that days arrives. If you want to know more, then this video breaks it down into even more detail. Have a great day and enjoy your journey into the future…


In a roadmap to end aging — understand the hallmarks to change your direction.

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Jan 13, 2021

A Theoretical Physicist Grapples With the Math of Consciousness

Posted by in categories: mathematics, neuroscience

Even for the brain of a worm, the best theory on offer would, she says, take several billion years to calculate. That can’t be the right answer.

Jan 13, 2021

Researchers identify promising model for studying human aging

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

Aging research fans might like.

“In their work, Hamiliton’s team found that the Dunkin Hartley guinea pig was a good candidate for a muscle aging model due to the animal’s tendency to develop osteoarthritis (OA) at a young age.”


There are many components to aging, both mental and physical. When it comes to the infrastructure of the human body—the musculoskeletal system that includes muscles, bones, tendons and cartilage—age-associated decline is inevitable, and the rate of that decline increases the older we get. The loss of muscle function—and often muscle mass—is scientifically known as sarcopenia or dynapenia.

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Jan 13, 2021

Aubrey de Grey Longevity Q&A — The last 25 years, SENS, Longevity Escape Velocity, & More

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

Annotated!


Aubrey David Nicholas Jasper de Grey is an English author and biomedical gerontologist. He is the Chief Science Officer of the SENS Research Foundation and VP of New Technology Discovery at AgeX Therapeutics.
Feel free to ask any related questions that you want Aubrey to try and answer!

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