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Archive for the ‘biotech/medical’ category: Page 2305

Jul 16, 2018

This wearable allows humans to control machines with their minds

Posted by in categories: biotech/medical, robotics/AI, virtual reality, wearables

CTRL-labs’s noninvasive neural interface allows people to control computers, robots and applications by tracking electrical activity generated when a person thinks about moving. This electrical activity is detected by an armband outfitted with sensors and decoded by a computer. The team thinks the technology will initially be used for augmented and virtual reality, but CTRL-labs is already experimenting with medical applications.

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Jul 16, 2018

BREAKING: CRISPR Could Be Causing Extensive Mutations And Genetic Damage After All

Posted by in categories: biotech/medical, genetics

CRISPR has been heralded as one of the most important breakthroughs in modern science, but there could be a hidden and potentially dangerous side effect to the wonders of its genetic editing technology, a new study reveals.

A systematic investigation of CRISPR/Cas9 genome editing in mouse and human cells has discovered that the technique appears to frequently cause extensive mutations and genetic damage that the researchers say wouldn’t be detected by existing DNA tests.

“This is the first systematic assessment of unexpected events resulting from CRISPR/Cas9 editing in therapeutically relevant cells,” explains geneticist Allan Bradley from the Wellcome Sanger Institute in the UK.

Continue reading “BREAKING: CRISPR Could Be Causing Extensive Mutations And Genetic Damage After All” »

Jul 16, 2018

Gene Editing Reduces Cholesterol in Animal Models

Posted by in categories: bioengineering, biotech/medical

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Jul 16, 2018

Worried About Dementia? You Might Want to Check Your Blood Pressure

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

Keeping Blood Pressure Down Can Help Lower Dementia Risk : Shots — Health News A new public health campaign says controlling high blood pressure is among the best ways to keep your brain sharp. The neurologist in charge aims to lead by example.

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Jul 16, 2018

New PET scan for Alzheimer’s disease directly measures synaptic loss

Posted by in categories: biotech/medical, neuroscience

Exciting new research from Yale University has revealed a new method that could potentially objectively diagnose if a person is suffering through the early stages of Alzheimer’s disease using a non-invasive PET scan.

A major roadblock slowing down effective Alzheimer’s research is our inability to easily, or clearly, diagnose the disease at its early stages. Several blood tests are being explored that can identify biomarkers signaling the early presence of the disease, but nothing has proved conclusive enough to move into general clinical use.

The new Yale University innovation uses PET imaging technology to evaluate cognitive decline by effectively measuring how much synaptic loss or degradation has occurred in a patient’s brain. To quantify a person’s “synaptic density” the researchers homed in on a protein called SV2A. This protein is found in nearly all healthy synapses, but as those connections degrade, so does the presence of SV2A.

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Jul 16, 2018

X-rays burst chemo-filled nanobubbles for targeted cancer drug delivery

Posted by in categories: biotech/medical, nanotechnology

Researchers at the Center for Nanoscale BioPhotonics (CNBP) have developed a new targeted treatment for cancer. Chemotherapy drugs are wrapped in “nano-bubbles” called liposomes, which are then injected into the desired part of the body and made to release their payload on demand, by applying X-ray radiation.

Liposomes are regularly used to protect drugs and carry them to where in the body they’re needed. Over the years, we’ve seen them used to protect insulin doses from the harsh environment of the gut long enough for it to enter the bloodstream, disarm bacteria without using antibiotics, and escort cancer-killers to tumors.

“Liposomes are already well established as an extremely effective drug-delivery system,” says Wei Deng, lead author of the study. “Made out of similar material as cell membranes, these ‘bubbles’ are relatively simple to prepare, can be filled with appropriate medications and then injected into specific parts of the body. The issue however, is in controlling the timely release of the drug from the liposome.”

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Jul 16, 2018

Cancer cells engineered with CRISPR slay their own kin

Posted by in category: biotech/medical

Scientists can program the stealth cells to die before creating new tumors.

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Jul 16, 2018

Leg Exercise is Critical to Brain and Nervous System Health

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

Groundbreaking research shows that neurological health depends as much on signals sent by the body’s large, leg muscles to the brain as it does on directives from the brain to the muscles. Published today in Frontiers in Neuroscience, the study fundamentally alters brain and nervous system medicine — giving doctors new clues as to why patients with motor neuron disease, multiple sclerosis, spinal muscular atrophy and other neurological diseases often rapidly decline when their movement becomes limited.

“Our study supports the notion that people who are unable to do load-bearing exercises — such as patients who are bed-ridden, or even astronauts on extended travel — not only lose muscle mass, but their body chemistry is altered at the cellular level and even their nervous system is adversely impacted,” says Dr. Raffaella Adami from the Università degli Studi di Milano, Italy.

The study involved restricting mice from using their hind legs, but not their front legs, over a period of 28 days. The mice continued to eat and groom normally and did not exhibit stress. At the end of the trial, the researchers examined an area of the brain called the sub-ventricular zone, which in many mammals has the role of maintaining nerve cell health. It is also the area where neural stem cells produce new neurons.

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Jul 15, 2018

The ‘Big Bang’ of Alzheimer’s: Scientists ID genesis of disease, focus efforts on shape-shifting tau

Posted by in categories: biotech/medical, neuroscience

Scientists have discovered a “Big Bang” of Alzheimer’s disease – the precise point at which a healthy protein becomes toxic but has not yet formed deadly tangles in the brain.

A study from UT Southwestern’s O’Donnell Brain Institute provides novel insight into the shape-shifting nature of a tau molecule just before it begins sticking to itself to form larger aggregates. The revelation offers a new strategy to detect the devastating disease before it takes hold and has spawned an effort to develop treatments that stabilize tau proteins before they shift shape.

“This is perhaps the biggest finding we have made to date, though it will likely be some time before any benefits materialize in the clinic. This changes much of how we think about the problem,” said Dr. Marc Diamond, Director for UT Southwestern’s Center for Alzheimer’s and Neurodegenerative Diseases and a leading dementia expert credited with determining that tau acts like a prion – an infectious that can self-replicate.

Continue reading “The ‘Big Bang’ of Alzheimer’s: Scientists ID genesis of disease, focus efforts on shape-shifting tau” »

Jul 15, 2018

Could We Be the Last Generation to Know What the Flu Feels Like?

Posted by in categories: biotech/medical, engineering, genetics

Project Recode may be the most ambitious science experiment of our time – genetically engineering humans to be virus-resistant.

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