Archive for the ‘biotech/medical’ category: Page 2601
May 29, 2016
More Efficient CRISPR Gene Editing May Potentially Help Cure Diseases
Posted by Karen Hurst in categories: bioengineering, biotech/medical, genetics, neuroscience
Awesome.
Researchers have developed a new gene editing tool that is more efficient and easier to use. CRISPR-EZ addresses the issue of target RNA accuracy and embryo viability in IVF transgenic mice.
( andrew modzelewski/lin he | university of california berkeley )
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May 29, 2016
New discovery from the molecular machinery for depression and addiction
Posted by Bruno Henrique de Souza in categories: biotech/medical, neuroscience
When nerve cells have to communicate with each other in our brains, it involves release of neurotransmitters acting as messengers at neural synapses. Here the released neurotransmitter is bound and registered by receptors at the surface of the receiving nerve cell. This will, in turn, trigger a signal which is sent on to other nerve cells. The circuits in the brain using the neurotransmitters noradrenaline, dopamine, GABA and serotonin are known to play an important role in mood, reward and mental well-being, and they also have a key role to in mental disorders such as addiction and depression.
After release of neurotransmitters between nerve cells, they must, however, be removed again to end the signal. This is done by a family of transport proteins which function as molecular vacuum cleaners in the cell membrane of the nerve cell where they pump the neurotransmitter back into the nerve cell for later reuse. This transport is of great importance to the signaling between the nerve cells, but happens relatively slowly. A collaborative project between researchers from Aarhus University has made it possible to explain what happens in the crucial rate-limiting step in the transport process for neurotransmitters such as serotonin, noradrenaline, GABA and dopamine which are all transported by related proteins with the same mechanism.
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May 29, 2016
Automating DNA origami opens door to many new uses
Posted by Bruno Henrique de Souza in categories: biotech/medical, information science
May 29, 2016
Ears, noses grown from stem cells in lab dishes
Posted by Shailesh Prasad in categories: biotech/medical, futurism
In a north London hospital, scientists are growing noses, ears and blood vessels in the laboratory in a bold attempt to make body parts using stem cells.
It is among several labs around the world, including in the U.S., that are working on the futuristic idea of growing custom-made organs in the lab.
Read more
May 27, 2016
31 responses to “Neverending Sex”
Posted by Maria Konovalenko in categories: biotech/medical, life extension, sex
Let’s formulate the task of life extension slightly differently. Something like this…How can we extend sex appeal?
Gyms and beauty salons are in charge of this question now. There is some success, but it’s mostly superficial. Plastic surgery only masks, but doesn’t delay the processes of aging.
Expanding sex appeal is a complex task. Its aspects include both beauty and the activity of the brain. To be sexually attractive we have to be smart and fun. One cannot solve the problem of dementia with makeup.
May 27, 2016
Corrected: U.S. sees first case of bacteria resistant to last-resort antibiotic
Posted by Sean Brazell in categories: biotech/medical, health
By ransdell pierson and bill berkrot.
(Reuters) — U.S. health officials on Thursday reported the first case in the country of a patient with an infection resistant to a last-resort antibiotic, and expressed grave concern that the superbug could pose serious danger for routine infections if it spreads.
“We risk being in a post-antibiotic world,” said Thomas Frieden, director of the U.S. Centers for Disease Control and Prevention, referring to the urinary tract infection of a 49-year-old Pennsylvania woman who had not traveled within the prior five months.
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May 27, 2016
The Future of Humanity’s Food Supply Is in the Hands of AI
Posted by Shailesh Prasad in categories: biotech/medical, computing, food, health, information science, mobile phones, robotics/AI, satellites
Perhaps it’s serendipitous, then, that the machines have finally arrived. Truly smart, truly impressive robots and machine learning algorithms that may help usher in a new Green Revolution to keep humans fed on an increasingly mercurial planet. Think satellites that automatically detect drought patterns, tractors that eyeball plants and kill the sick ones, and an AI-powered smartphone app that can tell a farmer what disease has crippled their crop.
Forget scarecrows. The future of agriculture is in the hands of the machines.
A Digital Green Thumb
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May 27, 2016
Turning Heartbeat into Electricity
Posted by Shailesh Prasad in category: biotech/medical
May 27, 2016
AI ‘doctors’ will diagnose your X-rays
Posted by Shailesh Prasad in categories: biotech/medical, health, robotics/AI, supercomputing
An Israeli medical imaging company has signed a deal with a Utah-based healthcare provider that could change the way we diagnose certain conditions. Zebra Medical Imaging is teaming up with Intermountain to work on a neural network that will compare fresh X-rays with the “millions” stored in its own database. The eventual aim of the project is to offer up suggestions to radiographers and other medical professionals and eliminate costly misdiagnoses.
For instance, let’s imagine that you’ve gone to hospital for some unknown condition and you get an X-ray. Rather than handing the slide to a doctor, who could miss a small shadow or other minor clue, the image would be handed to the computer. It would use deep learning to trawl an anonymized patient database looking for any anomalies that you might be suffering from. The current system will work on bone health, cardiovascular analysis and lung conditions, although who knows where the possibilities will end.
As deep learning technology gets more powerful, smaller and significantly cheaper, the potential for AI to assist doctors becomes more realistic. IBM has spent the last few years pushing Watson, its homegrown supercomputer, as a system to aid decision making for patients. At the same time, companies like LG are trying to shrink medical imaging technology to end the days of bulky hospital equipment being available for a chosen few. All in all, the idea of a medical tricorder is going from fantastical to plausible in less time than you’d expect.
