Researchers say they can predict awareness and return to consciousness of comatose patients

coma consciousness metabolism conscious2
Stender et al.
Researchers have developed a new method to peer into a comatose patient’s brain. By measuring how much sugar a brain consumes, scientists are able to predict a patient’s current state of awareness and the chance that the patient will regain consciousness within a year, according to a study published in the journal Current Biology.

A research team from the University of Copenhagen in Denmark and the University of Liège in Belgium sought a more dependable laboratory analysis that would accompany clinical examinations to determine a patient’s current and future level of awareness. They administered, mapped, and measured sugar as a marker in 131 brain-injured patients, and found that the brain’s glucose metabolism strongly correlated with behavioral responsiveness. The researchers were able to predict consciousness or return to consciousness in 94 percent of cases.

“In nearly all cases, whole-brain energy turnover directly predicted either the current level of awareness or its subsequent recovery,” Ron Kupers of the University of Copenhagen and Yale University said in a press release. “In short, our findings indicate that there is a minimal energetic requirement for sustained consciousness to arise after brain injury.”

Patients whose glucose metabolism measured under a threshold of 42 percent of normal appeared unconscious and failed to recover consciousness within the following year. Meanwhile, patients whose glucose metabolism measured above 42 percent the threshold had signs of initial responsiveness or recovered responsiveness within a year.

“The take-home message [for now] is that consciousness is a highly energy demanding process, involving the brain at large,” Kupers said. “This fundamental physiological trait can help clinicians determine the potential for recovery of awareness in patients suffering from severe brain injuries of any kind.”

Kupers and his team still insist that their findings need to be verified by an independent study. However, their research opens interest in further investigating how awareness relates to brain metabolism and how brain metabolism may change over time in brain-injured patients.

Emerging Tech

Awesome Tech You Can’t Buy Yet: heat-powered watches, phone cases with reflexes

Check out our roundup of the best new crowdfunding projects and product announcements that hit the web this week. You may not be able to buy this stuff yet, but it sure is fun to gawk!
Home Theater

The best movies on Netflix in December, from 'Buster Scruggs’ to 'Roma'

Save yourself from hours wasted scrolling through Netflix's massive library by checking out our picks for the streamer's best movies available right now, whether you're into explosive action, witty humor, or anything else.
Emerging Tech

Stomach implant device uses jolts of electricity to fight obesity

An implant created at the University of Wisconsin-Madison could help fight obesity by attaching to users' stomachs and then suppressing feelings of hunger using jolts of electricity.
Home Theater

Sonos teases Google Assistant integration once again at CES 2019

It's been a very long road for Sonos customers who have been patiently waiting for the company to make good on its promise to integrate Google Assistant into its platform. With a working demo at CES, it's now closer than ever.
Emerging Tech

Scientists debate mysterious flash of light in space, known as ‘The Cow’

On June 16, 2018 there was an unusual flash in the sky which puzzled astronomers around the world. NASA researchers have been collecting data on the event and have shared two competing theories for what could have caused it.
Emerging Tech

Brightest quasar ever seen discovered by Hubble, may be star-producing machine

The brightest quasar even seen has been observed with the Hubble Space Telescope using a technique called strong gravitational lensing. The quasar is enormously energetic and may be producing thousands of stars per year.
Emerging Tech

Watch China’s moon mission touch down on the planet’s far side

Video has been shared of a lander's-eye view of China's Chang'e 4 mission touching down in the Von Kármán Crater on the far side of the moon. The craft captured footage of the descent with a camera which was attached to the probe.
Emerging Tech

SpaceX nails its first launch and landing of 2019, but job cuts loom

SpaceX has nailed its first launch and landing of 2019 with a mission that deployed more satellites for Virginia-based Iridium Communications. But the success was soured somewhat by reports of upcoming job losses at the company.
Emerging Tech

The best 3D printers for 2019

On the hunt for a new 3D printer? We've got your back. Whether you're a beginner or a seasoned veteran, this list of the best 3D printers has what you're looking for.
Emerging Tech

The enormous ‘Flying Bum’ moves toward a commercial design

A prototype of the world's largest aircraft is being retired as the company behind it prepares to build a production model. The new Airlander 10, also known as the "Flying Bum," could be ready for commercial use by 2025.
Emerging Tech

Face-scanning A.I. can help doctors spot unusual genetic disorders

Facial recognition can unlock your phone. Could it also be used to identify whether a person has a rare genetic disorder, based on their facial features? New research suggests it can.
Emerging Tech

Lasers and bovine breathalyzer help determine how much methane cows produce

Cow farts and belches don't sound like catastrophic threats, but they contribute to the massive amounts of methane in the atmosphere. Recently, scientists set out to establish the numbers.
Emerging Tech

Researchers discover a way to make 3D printing 100 times faster using light

Researchers at the University of Michigan have invented a new method of 3D printing which is up to 100 times faster than conventional 3D-printing processes. Here's how it works and why it could prove a game-changer for 3D printing.
Emerging Tech

Why wait? Here are some CES 2019 gadgets you can buy right now

Companies come to CES to wow us with their cutting edge technology, but only a few products are slated to hit the market right away. Here is our list of the best CES 2019 tech you can buy right now.