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Archive for the ‘neuroscience’ category: Page 897

Aug 22, 2015

Rise Of The Organoids: Miniature Human Brain Most Complete To Date

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

As regenerative medicine expands, our ability to engineer organs is growing with it. Researchers can now grow a number of so called ‘organoids’ — mini-organs which can teach us more about developmental biology and enable vastly improved testing. In the latest addition to the bunch, a team from Ohio State University has successfully engineered the most complete model yet of a human brain, with a similar maturity to a 5 week old fetus.

Containing 99% of the genes present in the human fetal brain, and about the size of an eraser, the organoid was developed from transformed adult human skin. This method could allow more ethical and precise clinical trials, both speeding up and enabling more rigorous, personalized testing. As animal testing frequently fails to predict varied human responses, these organoid models offer an alternative approach which could revolutionize clinical trial methodology.

“It not only looks like the developing brain, its diverse cell types express nearly all genes like a brain. We’ve struggled for a long time trying to solve complex brain disease problems that cause tremendous pain and suffering. The power of this brain model bodes very well for human health because it gives us better and more relevant options to test and develop therapeutics other than rodents.”

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Aug 22, 2015

Alzheimer’s Disease: Is It Time To Look Beyond Amyloid?

Posted by in categories: biotech/medical, neuroscience

While billions have now been spent on researching dementia in its various forms, progress is still limited and the underlying triggers are still not clear. The majority of research over the past 30 years has revolved around targeting the amyloid plaques that build up in the disease, but this has resulted in limited success. Is it time to focus resources on other hypotheses instead?

The real problem with tackling these conditions is the sheer complexity of the brain and biology. Research is usually a trial and error process filled with intelligent guesswork, but this means it can often take a great deal of time to establish what’s actually going wrong. The cause or effect conundrum is a significant roadblock in research and working out which aspects drive a disease and which are a result of another malfunction can take serious resources and time. When researchers first began analysing Alzheimer’s patients, perhaps the most obvious feature was the now famous amyloid plaque, but while amyloid may seem like a clear culprit because it’s so clearly out of place, it could easily be a smokescreen; the reason why it appears at all may be far more relevant than the plaque itself.

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Aug 20, 2015

This narcolepsy ‘smart drug’ makes ordinary people smarter

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

A medication called modafinil is commonly used to treat people who experience narcolepsy, but it’s suspected that the vast majority of those who use the drug are taking it for another purpose that isn’t medically authorised: as a general cognitive enhancer for tasks such as studying or meeting a deadline.

Now a comprehensive review of the medication has looked at this ‘off licence’ use of the drug by healthy, non-sleep-deprived subjects to determine whether modafinil is safe – and to confirm whether the belief that it acts as a general-purpose ‘smart drug’ is grounded in reality.

According to researchers from the University of Oxford in the UK and Harvard Medical School in the US, modafinil delivers on both counts, constituting what’s thought to be the first safe smart drug that can provide demonstrable cognitive and concentration benefits. Brainpower in a pill, in other words.

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Aug 20, 2015

Scientists successfully grow human brain equivalent to 5-week-old foetus in the lab

Posted by in categories: chemistry, neuroscience

Growing brain tissue in a dish has been done before, but bold new research announced this week shows that scientists’ ability to create human brains in laboratory settings has come a long way quickly.

Researchers at the Ohio State University in the US claim to have developed the most complete laboratory-grown human brain ever, creating a model with the brain maturity of a 5-week-old foetus. The brain, which is approximately the size of a pencil eraser, contains 99 percent of the genes that would be present in a natural human foetal brain.

“It not only looks like the developing brain, its diverse cell types express nearly all genes like a brain,” Rene Anand, professor of biological chemistry and pharmacology at Ohio State and lead researcher on the brain model, said in a statement.

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Aug 20, 2015

How young blood might help reverse aging. Yes, really

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

Tony Wyss-Coray studies the impact of aging on the human body and brain. In this eye-opening talk, he shares new research from his Stanford lab and other teams which shows that a solution for some of the less great aspects of old age might actually lie within us all.

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Aug 19, 2015

First Near-Fully Formed Brain Grown In Lab, Ohio State Scientists Say

Posted by in categories: biotech/medical, neuroscience

Scientists at Ohio State University say they’ve grown the first near-complete human brain in a lab.

The brain organoid, if licensed for commercial lab use, could help speed research for neurological diseases and disorders, like Alzheimer’s and autism, Rene Anand, an Ohio State professor who worked on the project, said in a statement Tuesday.

Continue reading “First Near-Fully Formed Brain Grown In Lab, Ohio State Scientists Say” »

Aug 19, 2015

Miniature brain-in-a-dish could help advance Alzheimer’s research

Posted by in categories: biotech/medical, neuroscience

A lab-grown brain is the most complete ever developed, equivalent to the brain maturity of a five-week-old foetus.

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Aug 17, 2015

Watch Boston Dynamics’ Robot Run Outside Oh God They’re Coming For Us

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

Possible cause of the singularity Boston Dynamics is secretive about upcoming projects, but new footage shows their robots in action—and the results are highly unsettling.

First you can see Spot, an agile autonomous quadruped ripped directly from Isaac Asimov’s nightmares, opening a door with the arm it sports instead of a face. Spot would almost be adorable the way it trots around on four legs except for the protruding face-arm that will turn the handle on your front door with its superstrength. Sleep well tonight.

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Aug 17, 2015

Future of Virtual Reality Series Launches Today

Posted by in categories: neuroscience, space, space travel, virtual reality

If you’ve ever watched someone experience virtual reality for the first time, you know it can involve screaming, flapping arms, and occasional falls.

On one level people know their bodies are safe on the stable chair, but as their minds are catapulted through outer space on a spaceship to Mars or beamed into a refugee camp in Syria —they can’t help but lose their grip on reality and go along for the ride.

In fact, our brains don’t even require photorealism for suspension of disbelief in VR. A choppy CGI rendition will cause our heart rates to increase and our palms to get sweaty when we’re riding a virtual roller coaster or standing on the edge of a virtual building looking at the ground 30 stories below.

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Aug 16, 2015

There Is Now a Brain Implant that Can Control Emotions Wirelessly

Posted by in category: neuroscience

But can human beings be trusted to be in complete control over their emotional reality?

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