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Archive for the ‘biotech/medical’ category: Page 1362

Nov 22, 2020

Virtual Reality to the Rescue: Innovative pilot program transcends remote learning

Posted by in categories: biotech/medical, education, virtual reality

When COVID-19 reared its ugly head, wreaking havoc on education for students all over the world, CSU’s human virtual reality program stepped up to meet the moment.

“We knew that teaching an entire human gross anatomy class remotely with only pictures would not be ideal for students,” said Tod Clapp, an associate professor in the Department of Biomedical Sciences and head of its human anatomy program.

Moving BMS 301, Human Gross Anatomy, to online-only instruction this summer meant that students would not only miss out on the chance to work with and learn from real human cadavers, they would also miss getting to experience the new 100-person virtual reality lab Clapp’s team built last fall.

Nov 22, 2020

Amazing magnetic spray turns tiny inanimate objects into insect-scale robots

Posted by in categories: biotech/medical, robotics/AI

Does the idea of miniature, insect-scale robots swarming toward their intended duties inside your body make your skin crawl?

Medical researchers led by Dr. Shen Yajing from City University of Hong Kong (CityU) don’t wish to alarm you but they’ve just devised a simple method of making millirobots which can be employed in various biomedical applications like targeted drug delivery and catheter navigation.

Nov 22, 2020

Aerodynamics of Infectious Disease: Airflow Studies Reveal Strategies to Reduce Indoor Transmission of COVID-19

Posted by in categories: biotech/medical, health, particle physics

Scientists studying the aerodynamics of infectious disease share steps to curb transmission during indoor activities.

Wear a mask. Stay six feet apart. Avoid large gatherings. As the world awaits a safe and effective vaccine, controlling the COVID-19 pandemic hinges on widespread compliance with these public health guidelines. But as colder weather forces people to spend more time indoors, blocking disease transmission will become more challenging than ever.

At the 73rd Annual Meeting of the American Physical Society’s Division of Fluid Dynamics, researchers presented a range of studies investigating the aerodynamics of infectious disease. Their results suggest strategies for lowering risk based on a rigorous understanding of how infectious particles mix with air in confined spaces.

Nov 22, 2020

Coronavirus vaccines: Will any countries get left out?

Posted by in category: biotech/medical

Experts say the pandemic needs a global solution, but there are concerns over access to vaccines.

Nov 22, 2020

Researchers improve neuronal reprogramming

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

The replacement of lost neurons is a holy grail for neuroscience. A new promising approach is the conversion of glial cells into new neurons. Improving the efficiency of this conversion or reprogramming after brain injury is an important step towards developing reliable regenerative medicine therapies. Researchers at Helmholtz Zentrum München and Ludwig Maximilians University Munich (LMU) have identified a hurdle towards an efficient conversion: the cell metabolism. By expressing neuron-enriched mitochondrial proteins at an early stage of the direct reprogramming process, the researchers achieved a four times higher conversion rate and simultaneously increased the speed of reprogramming.

Neurons (nerve cells) have very important functions in the brain such as information processing. Many brain diseases, injuries and neurodegenerative processes, are characterized by the loss of neurons that are not replaced. Approaches in regenerative medicine therefore aim to reconstitute the neurons by transplantation, stem cell differentiation or direct conversion of endogenous non-neuronal cell types into functional neurons.

Researchers at Helmholtz Zentrum München and LMU are pioneering the field of direct conversion of glial cells into neurons which they have originally discovered. Glia are the most abundant cell type in the brain and can proliferate upon injury. Currently, researchers are able to convert glia cells into neurons — but during the process many cells die. This means that only few glial cells convert into functional nerve cells, making the process inefficient.

Nov 21, 2020

A ‘golden house’ is orbiting Earth! SpaceX launches NASA’s Sentinel-6 Michael Freilich satellite

Posted by in categories: biotech/medical, satellites

A ‘golden house’ is orbiting Earth! SpaceX launched the unique spacecraft to orbit this morning. It is the Sentinel-6 Michael Freilich ocean observatory, named in honor of former Head of NASA’s Earth Science Division who passed away of cancer in August. The satellite will soon beam the most accurate information of Earth’s oceans which will help meterologists and scientists forecast weather events, like hurricanes, track climate change and rising sea levels. “At NASA, what we do is, we use the vantage point of space to get a global view of the Earth. And in this case, Sentinel-6 Michael Freilich is going to give us a global view of the sea surface height,” Karen St. Germain Director of NASA’s Earth Science Division stated. “The changing Earth processes are affecting sea level globally, but the impact on local communities varies widely. International collaboration is critical to both understanding these changes and informing coastal communities around the world,” she said. Sentinel-6 is a joint project between NASA and the European Aerospace Agency (ESA).

The house-shaped satellite was deployed to orbit atop SpaceX’s Falcon 9 rocket that lifted off at 9:17 a.m. PST from Space Launch Complex 4E at California’s Vandenberg Air Force Base.

Nov 21, 2020

3 Profound Impacts Exercise Has on The Brain

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

Here are just a few ways exercise changes the structure of our brain.

Memory

Many studies suggest that exercise can help protect our memory as we age. This is because exercise has been shown to prevent the loss of total brain volume (which can lead to lower cognitive function), as well as preventing shrinkage in specific brain regions associated with memory. For example, one magnetic resonance imaging (MRI) scan study revealed that in older adults, six months of exercise training increases brain volume.

Nov 21, 2020

UNSW team taps light-activated liposomes for safer CRISPR delivery

Posted by in categories: biotech/medical, genetics

Researchers in Australia are shining a spotlight on a safer delivery method for targeted CRISPR gene therapies—and they’re using literal illumination to pull it off.

Scientists and biomedical engineers from the University of New South Wales Sydney say they’ve developed a light-sensitive liposome that can ferry CRISPR molecules to specific sites in the body. When hit with LED light, the liposomes unleash their CRISPR payloads to hunt down faulty genes.

The CRISPR-Cas9 gene-editing tool consists of a guide RNA that homes in on a target in the DNA, and the Cas9 enzyme, which cuts the DNA much like a pair of molecular scissors. A slate of companies is exploring the technology to treat cancer and even blindness, but the therapy is traditionally delivered using viruses, which can themselves spur unwanted immune responses and other side effects.

Nov 21, 2020

A neural network learns when it should not be trusted

Posted by in categories: biotech/medical, robotics/AI

MIT researchers have developed a way for deep learning neural networks to rapidly estimate confidence levels in their output. The advance could enhance safety and efficiency in AI-assisted decision making, with applications ranging from medical diagnosis to autonomous driving.

Nov 21, 2020

FDA allows emergency use of antibody drug Trump received

Posted by in categories: biotech/medical, health

(AP) — U.S. health officials Saturday agreed to allow emergency use of a second antibody drug to help the immune system fight COVID-19, an experimental medicine that President Donald Trump was given when he was sickened last month.

The Food and Drug Administration authorized use of the Regeneron Pharmaceuticals Inc. drug to try to prevent hospitalization and worsening disease from developing in patients with mild-to-moderate symptoms.

The drug is given as a one-time treatment through an IV. The FDA allowed its use in adults and children 12 and over who weigh at least 88 pounds (40 kilograms) and who are at high risk of severe illness from COVID-19 because of age or certain other medical conditions.