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Archive for the ‘biotech/medical’ category: Page 1928

Oct 2, 2019

Biologists track the invasion of herbicide-resistant weeds into southwestern Ontario

Posted by in categories: biotech/medical, food, sustainability

A team including evolutionary biologists from the University of Toronto (U of T) have identified the ways in which herbicide-resistant strains of an invasive weed named common waterhemp have emerged in fields of soy and corn in southwestern Ontario.

They found that the resistance—which was first detected in Ontario in 2010—has spread thanks to two mechanisms: first, pollen and seeds of resistant plants are physically dispersed by wind, water and other means; second, resistance has appeared through the spontaneous emergence of resistance mutations that then spread.

The researchers found evidence of both mechanisms by comparing the genomes of herbicide-resistant plants from Midwestern U.S. farms with the genomes of plants from Southern Ontario.

Oct 1, 2019

Twist Bioscience Enhances DNA Storage Capabilities Through Agreement With Imagene SA

Posted by in categories: biotech/medical, business, computing

SAN FRANCISCO—( )—Twist Bioscience Corporation (NASDAQ: TWST), a company enabling customers to succeed through its offering of high-quality synthetic DNA using its silicon platform, today announced that it has entered into an agreement with Imagene SA, where Imagene will provide Twist with an encapsulation service to store DNA through its DNAshell® technology to store digital data encoded in DNA for thousands of years.

“We are happy to be partnering with Twist and providing them with our disruptive DNAshell® technology to safely store DNA with digital data encoded.” Tweet this

“This agreement with Imagene provides the next step in the continuum on DNA digital data storage and fits within our strategy to cover all aspects of the process efficiently to enable the development of DNA as a digital storage medium,” commented Emily Leproust, Ph.D., CEO of Twist Bioscience. “We believe the DNAshell ® technology allows us to encapsulate the DNA-stored digital data securely, protecting it for eternity from any elements including radiation, and eliminating the need for continued copying of digital data due to degradation experienced in other forms of storage today.”

Oct 1, 2019

Meet The Synthetic Biology Company Engineering Your Immune System

Posted by in categories: bioengineering, biotech/medical

It’s taken 30 years of biotech, but synthetic biology can now engineer antibodies faster than your body can, enabling cures for anything from snakebites to a universal flu vaccine. Meet the company that aims to revolutionize the entire pharmaceutical industry.

Oct 1, 2019

AI Can Diagnose Like Doctors. But for Continued Progress, Research Standards Must Improve

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

The trawl found 20,500 articles tackling the topic, but shockingly, less than 1 percent of them were scientifically robust enough to be confident in their claims, say the authors. Of those, only 25 tested their deep learning models on unseen data, and only 14 actually compared performance with health professionals on the same test sample.

Nonetheless, when the researchers pooled the data from the 14 most rigorous studies, they found the deep learning systems correctly detected disease in 87 percent of cases, compared to 86 percent for healthcare professionals. They also did well on the equally important metric of excluding patients who don’t have a particular disease, getting it right 93 percent of the time compared to 91 percent for humans.

Ultimately, then, the results of the review are broadly positive for AI, but damning of the hype that has built up around the technology and the research practices of most of those trying to apply it to medical diagnosis.

Oct 1, 2019

California researchers develop drug cocktail that reverses aging — results are ‘remarkably promising’

Posted by in categories: biotech/medical, life extension

???? Respect AEWR & r.p.berry


Scientists find promising results in trial to reverse biological aging.

Oct 1, 2019

Fruit flies live longer with combination drug treatment

Posted by in categories: biotech/medical, life extension

A triple drug combination has been used to extend the lifespan of fruit flies by 48% in a new study led by UCL and the Max Planck Institute for Biology of Ageing.

The three drugs are all already in use as : lithium as a mood stabiliser, trametinib as a and rapamycin as an immune system regulator.

The findings, published in Proceedings of the National Academy of Sciences (PNAS), suggest that a combination treatment may one day be helpful at preventing in people.

Oct 1, 2019

Rapture of the nerds: will the Singularity turn us into gods or end the human race?

Posted by in categories: biotech/medical, finance, information science, mathematics, robotics/AI, singularity

Circa 2012


Hundreds of the world’s brightest minds — engineers from Google and IBM, hedge funds quants, and Defense Department contractors building artificial intelligence — were gathered in rapt attention inside the auditorium of the San Francisco Masonic Temple atop Nob Hill. It was the first day of the seventh annual Singularity Summit, and Julia Galef, the President of the Center for Applied Rationality, was speaking onstage. On the screen behind her, Galef projected a giant image from the film Blade Runner: the replicant Roy, naked, his face stained with blood, cradling a white dove in his arms.

At this point in the movie, Roy is reaching the end of his short, pre-programmed life, “The poignancy of his death scene comes from the contrast between that bitter truth and the fact that he still feels his life has meaning, and for lack of a better word, he has a soul,” said Galef. “To me this is the situation we as humans have found ourselves in over the last century. Turns out we are survival machines created by ancient replicators, DNA, to produce as many copies of them as possible. This is the bitter pill that science has offered us in response to our questions about where we came from and what it all means.”

Continue reading “Rapture of the nerds: will the Singularity turn us into gods or end the human race?” »

Oct 1, 2019

For the September Journal Club we are taking a look at the new human trial data from the recent senolytics trial at the Mayo Clinic

Posted by in categories: biotech/medical, life extension

Click on photo to start video.

A follow on study from their previous human trial targeting IPF. This time the researchers ran a study to see how senolytics influenced diabetic kidney disease and if it actually removes senescent cells in humans.


Senescent cells, which can release factors that cause inflammation and dysfunction, the senescence-associated secretory phenotype (SASP), accumulate with ageing and at etiological sites in multiple chronic diseases. Senolytics, including the combination of Dasatinib and Quercetin (D + Q), selectively eliminate senescent cells by transiently disabling pro-survival networks that defend them against their own apoptotic environment. In the first clinical trial of senolytics, D + Q improved physical function in patients with idiopathic pulmonary fibrosis (IPF), a fatal senescence-associated disease, but to date, no peer-reviewed study has directly demonstrated that senolytics decrease senescent cells in humans.

Continue reading “For the September Journal Club we are taking a look at the new human trial data from the recent senolytics trial at the Mayo Clinic” »

Oct 1, 2019

Studying a cell’s crawling motion in a fluid

Posted by in category: biotech/medical

Cell motility, the spontaneous movement of cells from one location to another, plays a fundamental role in many biological processes, including immune responses and metastasis. Recent physics studies have gathered new evidence suggesting that mammalian cells do not only crawl on solid substrates, including complex 3D mediums of a tissues, but can also swim in fluids.

In a recent study, a team of researchers at the University Grenoble Alpes and CNRS (National Center of Scientific Research) tried to shed light on the mechanisms behind the onset of motility cells in suspension, which would occur if they were moving in fluids. Their paper, published in Physical Review Letters, presents a model that couples actin and myosin kinetics with , which they applied to a spherical and a non-spherical shape.

“Recent studies have suggested that adhesion is not necessary for cells to move in a three-dimensional environment, and have even shown that cells of the immune system can swim when suspended in a fluid,” the researchers who conducted the study told Phys.org via email.

Oct 1, 2019

Researchers synthesize ‘impossible’ superconductor

Posted by in categories: biotech/medical, chemistry

Researchers from the U.S., Russia, and China have bent the rules of classical chemistry and synthesized a “forbidden” compound of cerium and hydrogen—CeH9—which exhibits superconductivity at a relatively low pressure of 1 million atmospheres. The paper came out in Nature Communications.

Superconductors are materials capable of conducting an electric current with no resistance whatsoever. They are behind the powerful electromagnets in , maglev trains, MRI scanners, and could theoretically enable power lines that deliver electricity from A to B without losing the precious kilowatts to thermal dissipation.

Unfortunately, the superconductors known today can only work at very low temperatures (below −138 degrees Celsius), and latest record (−13 degrees Celsius) requires extremely high pressures of nearly 2 million atmospheres. This limits the scope of their possible applications and makes the available superconducting technologies expensive, since maintaining their fairly extreme operating conditions is challenging.