Archive for the ‘neuroscience’ category: Page 828
May 15, 2018
Radio Waves and Real-Time Monitoring Help Destroy Brain Tumors
Posted by Jeffrey L. Lee in categories: biotech/medical, neuroscience
The University of Southern California is developing the means to control and direct radio frequency energy to destroy cancer tumors…
A new technique from the University of Southern California uses radio-frequency waves to burn away tumors as doctor’s monitor the procedure in real-time.
May 15, 2018
Israeli Scientists Uncover Therapy That Converts Cancer Cells Into Normal Ones
Posted by Genevieve Klien in categories: biotech/medical, neuroscience
Cancer cells, by definition, are abnormal cells that divide with abandon and have the potential to spread throughout and wreak havoc on your vital organs and tissues. But what if you could tell those same troublesome cells to stop misbehaving? Israeli scientists think they’ve found a way to do just that.
A group of researchers at Ben-Gurion University of the Negev, led by Professor Varda Shoshan-Barmatz, PhD, have developed a molecule that prevents cancer cells from growing and turns them into normal, non-cancerous cells. This unique approach is based on siRNA (small interfering ribonucleic acid), a molecule that turns off a protein, VDAC1, that helps get energy to malignant cells. By targeting VDAC1, Shoshan-Barmatz and her team have essentially figured out how to make cancer cells start acting like regular ones.
So far, in vitro and mice models have suggested that this treatment might be effective for lung cancer, triple negative breast cancer, and glioblastoma (the type of brain tumor that John McCain is currently battling). But the applications might be even broader, and similar treatments might be one day used to combat an even wider variety of cancers.
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May 15, 2018
Scientists inject one snail’s memories into another’s brain
Posted by Klaus Baldauf in categories: biotech/medical, neuroscience
Learning new things would be so much easier if we could just download them into our brains, like in The Matrix. Now, biologists at the University of California, Los Angeles (UCLA) have pulled off something similar – at least on a gastropod level – by effectively transferring a memory from a trained snail into the mind of an untrained one. The experiment could eventually lead to new treatments for restoring memory in Alzheimer’s patients or to reduce traumatic memories.
The researchers studied a species of marine snail known as Aplysia. These are commonly used as animal models for neuroscience because the cellular and molecular processes at work are relatively similar to humans, but they have a far more manageable number of neurons – about 20,000, compared to our 100 billion.
May 14, 2018
Human Mini-Brains Growing Inside Rat Bodies Are Starting to Integrate
Posted by Paul Gonçalves in categories: biotech/medical, ethics, neuroscience
Stem cell technology has advanced so much that scientists can grow miniature versions of human brains — called organoids, or mini-brains if you want to be cute about it — in the lab, but medical ethicists are concerned about recent developments in this field involving the growth of these tiny brains in other animals. Those concerns are bound to become more serious after the annual meeting of the Society for Neuroscience starting November 11 in Washington, D.C., where two teams of scientists plan to present previously unpublished research on the unexpected interaction between human mini-brains and their rat and mouse hosts.
In the new papers, according to STAT, scientists will report that the organoids survived for extended periods of time — two months in one case — and even connected to lab animals’ circulatory and nervous systems, transferring blood and nerve signals between the host animal and the implanted human cells. This is an unprecedented advancement for mini-brain research.
“We are entering totally new ground here,” Christof Koch, president of the Allen Institute for Brain Science in Seattle, told STAT. “The science is advancing so rapidly, the ethics can’t keep up.”
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May 14, 2018
Neuroscientists see a new way to manipulate minds
Posted by Marcos Than Esponda in categories: computing, economics, health, neuroscience
Is it possible to exercise the same kind of control over the most complex network we know of: the human brain?
Rewriting Life.
How network neuroscience is creating a new era of mind control.
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May 14, 2018
Biological and Artificial Intelligence
Posted by Peter Morgan in categories: biological, neuroscience, robotics/AI, transhumanism
We all feel overwhelmed by the speed at which new computing technologies are being thrown at us, but we haven’t seen anything yet. With the upcoming breakthroughs in Artificial Intelligence technology, today’s computers will look like prehistoric tools, within just a few years. Systems are likely to follow suit, bringing us closer to strong AI, a moment when machines will be as smart as any human being. The question many fear is what will happen if and when machines become much brighter than us? In “What’s on their mind?” system consultant Serge Van Themsche describes through an engaging discussion with his driverless car, the main AI issues any concerned citizen should know about. This conversation resorts to hard and soft disciplines to better explain AIn this book you will get to understand: — What are biological and artificial knowledge, intelligence, and self-consciousness? — Which new neuroscience evidence shows how our brain programs data coming from our senses? — How can simple formulas, such as 2 power of i −1, explain how our neurons connect? — Can emotions be computable? — Can machines already create knowledge without any human interference? — Why must the computer industry mimic as closely as possible the brain functionalities to develop intelligent androids? — Why will AI be based on a discrete world rather than a digital one? — Will humans become super beings? This book will enable every reader, with or without a scientific or philosophical background, to grasp the similarities and differences between brains and computers. By doing so, he or she will not only figure out the likely paths AI will follow but also how humans will use these new technologies to transform themselves into super beings. Even though not all readers might be looking forward to Transhumanism, the movement that apprehends these modifications, they can get prepared for this future co-existence with smart robots. In the meantime, they will at least, gain a clear understanding of how their own mind works and why they become knowledgeable, intelligent, and self-aware.
May 14, 2018
Could technology help cure depression among older adults? (Short answer: Yes)
Posted by Alvaro Fernandez in categories: biotech/medical, health, neuroscience
This is important because “the go-to treatment for many cases of depression is medication…this treatment option can cause as many issues as the problem it is trying to solve. Antidepressants can put residents at greater risk of falls, negative health complications and other poor conditions…studies indicate that antidepressants may not be effective for most older Americans. (Additionally) Medication adherence is another significant challenge.”
___ Why technology — not medication — is the future of treating older adults with depression (McKnight’s Long-term Care News): “The go-to treatment for many cases of depression is medication. Unfortunately, this treatment option can cause as many issues as the problem it is trying to solve. Antidepressants can put.
May 13, 2018
Anti-aging protein alpha Klotho’s molecular structure revealed
Posted by Manuel Canovas Lechuga in categories: biotech/medical, life extension, neuroscience
DALLAS – March 29, 2018 – Researchers from UT Southwestern’s Charles and Jane Pak Center for Mineral Metabolism and Clinical Research and Internal Medicine’s Division of Nephrology recently published work in Nature that reveals the molecular structure of the so-called “anti-aging” protein alpha Klotho (a-Klotho) and how it transmits a hormonal signal that controls a variety of biologic processes. The investigation was performed in collaboration with scientists from New York University School of Medicine and Wenzhou Medical University in China.
Studies at UTSW two decades ago by Dr. Makoto Kuro-o, Professor of Pathology, demonstrated that mice lacking either a-Klotho or the hormone FGF23 suffered from premature and multiple organ failure as well as other conditions, including early onset cardiovascular disease, cancer, and cognitive decline. Because defects in a-Klotho lead to symptoms seen in aging, researchers inferred that a-Klotho suppresses aging, leading to great interest in how the a-Klotho protein might work together with the hormone FGF23 to fulfill their roles.
A-Klotho can exist on the surface of a cell or can be released from the cell and circulate in body fluids, including the blood, as soluble a-Klotho. The cell-attached form and the circulating form of a-Klotho were previously and universally believed to serve completely different functions.
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