Archive for the ‘biotech/medical’ category: Page 1843
Jan 4, 2020
A new way to warm up frozen tissue could help with the organ shortage
Posted by Paul Battista in categories: biotech/medical, cryonics, life extension, nanotechnology
This technology may one day be used to revive patient suspended in cryonics.
A new way to warm up frozen tissue using tiny vibrating particles could one day help with the problem of organ shortages.
We know how to cool organs to cryogenic temperatures, which is usually below 320 degrees Fahrenheit. But the organs can’t be stored for long — sometimes only four hours for heart and lungs — because they get damaged when you try to warm them up. As a result, more than 60 percent of donor hearts and lungs aren’t transplanted. In a study published today in Science Translational Medicine, scientists used nanoparticles to warm up frozen tissue quickly and without damaging the organs. Within a decade, this could lead to being able to store entire organs in organ banks for a long period of time, the authors say.
Continue reading “A new way to warm up frozen tissue could help with the organ shortage” »
Jan 4, 2020
Decoder translates brain activity into speech
Posted by Brent Ellman in categories: biotech/medical, computing, neuroscience
Neurological conditions or injuries that result in the inability to communicate can be devastating. Patients with such speech loss often rely on alternative communication devices that use brain–computer interfaces (BCIs) or nonverbal head or eye movements to control a cursor to spell out words. While these systems can enhance quality-of-life, they can only produce around 5–10 words per minute, far slower than the natural rate of human speech.
Researchers from the University of California San Francisco today published details of a neural decoder that can transform brain activity into intelligible synthesized speech at the rate of a fluent speaker (Nature 10.1038/s41586-019‑1119-1).
“It has been a longstanding goal of our lab to create technology to restore communication for patients with severe speech disabilities,” explains neurosurgeon Edward Chang. “We want to create technologies that can generate synthesized speech directly from human brain activity. This study provides a proof-of-principle that this is possible.”
Jan 4, 2020
3D printed, controlled release, tritherapeutic tablet matrix for advanced anti-HIV-1 drug delivery
Posted by Brent Ellman in categories: 3D printing, biotech/medical
A 3D-Bioplotter® was employed to 3D print (3DP) a humic acid-polyquaternium 10 (HA-PQ10) controlled release fixed dose combination (FDC) tablet comprising of the anti-HIV-1 drugs, efavirenz (EFV), tenofovir disoproxil fumarate (TDF) and emtricitabine (FTC).
Chemical interactions, surface morphology and mechanical strength of the FDC were ascertained. In vitro drug release studies were conducted in biorelevant media followed by in vivo study in the large white pigs, in comparison with a market formulation, Atripla®. In vitro-in vivo correlation of results was undertaken.
EFV, TDF and FTC were successfully entrapped in the 24-layered rectangular prism-shaped 3DP FDC with a loading of ∼12.5 mg/6.3 mg/4 mg of EFV/TDF/FTC respectively per printed layer. Hydrogen bonding between the EFV/TDF/FTC and HA-PQ10 was detected which was indicative of possible drug solubility enhancement. The overall surface of the tablet exhibited a fibrilla structure and the 90° inner pattern was determined to be optimal for 3DP of the FDC. In vitro and in vivo d rug release profiles from the 3DP FDC demonstrated that intestinal-targeted and controlled drug release was achieved.
Jan 4, 2020
Israeli researchers develop technology for 3D printing of drugs
Posted by Brent Ellman in categories: 3D printing, biotech/medical
The new technology enables the printing of personalized medications out of hydrogel objects, producing complex structures which can expand, change shape and activate on a delayed schedule. By prescribing personalized medicines, doctors will be able to accurately tailor the exposure and dosage levels for individual patients.
“We now have the technology to replace standard or traditional formulations. The population is getting older so we need to think of solutions,” said Benny.
“We can now think about combining drugs together into one drug instead of ten, to adjust the kinetics of drugs and improve patient compliance in drug administration.”
Jan 4, 2020
What causes Alzheimer’s? Not toxic amyloid, new study suggests
Posted by Genevieve Klien in categories: biotech/medical, neuroscience
The findings of a new study suggest that the accumulation of toxic beta-amyloid proteins in the brain may not be the cause of Alzheimer’s disease.
3D printing drugs is driving the pharmaceutical industry towards personalized medicine. Let’s take a look at the most recent trends and developments.
Jan 4, 2020
FDA Approves UVA-Developed Artificial Pancreas
Posted by Paul Battista in categories: biotech/medical, information science
The breakthrough system combines a glucose sensor, insulin pump and a smart control algorithm to allow Type 1 diabetes patients to continually regulate blood-sugar levels.
Jan 4, 2020
Why Drugs Are So Expensive | VICE on HBO
Posted by Derick Lee in categories: biotech/medical, futurism
Americans today spend more on pharmaceuticals per capita than anyone else in the world, and more than one in five say they have trouble affording their prescription drugs. But they might not know about the alternative pathways to medicine. VICE’s Hamilton Morris explores the world of clandestine chemists, DIY bio hackers, and grey markets to see if a more democratized medicinal future is indeed possible.
Check out VICE News for more: http://vicenews.com
Continue reading “Why Drugs Are So Expensive | VICE on HBO” »
Jan 3, 2020
70% Of Women With Breast Cancer May Not Need Chemotherapy
Posted by Paul Battista in category: biotech/medical
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