Menu

Blog

Page 7268

Jul 27, 2020

Single cells have their own defenses against pathogens

Posted by in category: biotech/medical

In the fight against pathogens, most researchers have focused on the diverse immune system arsenal that protects people against infection. However, the lab of Yale microbiologist Jorge Galan explored an evolutionarily ancient defense system possessed by every individual cell in the body.

In work published July 24th in the journal Science, Galan’s lab describes the role played by the mitochondria, the cell’s energy-producing organelle, in creating an anti-microbial compound capable of combatting Salmonella Typhi, the cause of typhoid fever. Using advanced imaging technology, Galan and colleagues show how the compound itaconate, produced in the , can penetrate cellular defenses that protect the pathogen and disrupt its metabolism and ability to grow.

Jul 27, 2020

A Possible Weapon Against the Pandemic: Printing Human Tissue

Posted by in categories: bioprinting, biotech/medical

Bioprinting could be used for testing potential treatments for Covid-19, cancer and other diseases.


Bioprinting’s importance for pharmaceutical analysis is paramount now, not only for potential Covid-19 treatments, but also for testing treatments for cancer and other diseases. Dr. Atala says that the organoids allow researchers to analyze a drug’s impact on an organ “without the noise” of an individual’s metabolism.

He cited Rezulin, a popular diabetes drug recalled in 2000 after there was evidence of liver failure. His lab tested an archived version of the drug, and Dr. Atala said that within two weeks, the liver toxicity became apparent. What accounts for the difference? An organoid replicates an organ in its purest form and offers data points that might not occur in clinical trials, he said, adding that the testing is additive to, rather than in lieu of, clinical trials.

Jul 27, 2020

Paul Ziolo — interview

Posted by in category: space

https://www.youtube.com/watch?v=1UDJB7DS1Lo&feature=youtu.be

Interviewed by mika curtis, for the space renaissance academy mentorship programme.

We are honored and proud to publish this interview with Prof. Paul Ziolo, Psychohistorian, Senior Lecturer at the University of Liverpool, who kindly accepted to reply to some questions about his role as a Mentor of the Space Renaissance Academy. https://youtu.be/1UDJB7DS1Lo

Continue reading “Paul Ziolo — interview” »

Jul 27, 2020

Artificial Intelligence Identifies Prostate Cancer With Near-Perfect Accuracy

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

A study published today (July 27, 2020) in The Lancet Digital Health by UPMC and University of Pittsburgh researchers demonstrates the highest accuracy to date in recognizing and characterizing prostate cancer using an artificial intelligence (AI) program.

“Humans are good at recognizing anomalies, but they have their own biases or past experience,” said senior author Rajiv Dhir, M.D., M.B.A., chief pathologist and vice chair of pathology at UPMC Shadyside and professor of biomedical informatics at Pitt. “Machines are detached from the whole story. There’s definitely an element of standardizing care.”

To train the AI to recognize prostate cancer, Dhir and his colleagues provided images from more than a million parts of stained tissue slides taken from patient biopsies. Each image was labeled by expert pathologists to teach the AI how to discriminate between healthy and abnormal tissue. The algorithm was then tested on a separate set of 1,600 slides taken from 100 consecutive patients seen at UPMC for suspected prostate cancer.

Jul 27, 2020

World’s first cultivated bacon and pork belly

Posted by in category: food

Higher Steaks, a UK food technology start-up, has announced the world’s first cultivated bacon and pork belly.

Jul 27, 2020

700-petaflop AI supercomputer planned for 2021

Posted by in categories: robotics/AI, supercomputing

As the world edges closer towards exascale computing, the University of Florida has announced a partnership with chipmaker NVIDIA that aims to create a 700-petaflop AI supercomputer next year.

Jul 27, 2020

For Only The Second Time, Astronomers Detect a Strange Flash of Light During Supernova

Posted by in category: cosmology

A stunning flash of ultraviolet light from an exploding white dwarf has been detected by astronomers for only the second time, and could give researchers important clues about what spurs the demise of these ancient, spent stars.

Researchers became aware of this unusual supernova – called SN2019yvq – last December, only a day after the explosion took place. Within hours, scientists classified the event as a Type Ia supernova – not an unusual stellar event, ordinarily at least, except this time it was accompanied by the extremely rare flash of ultraviolet light.

“These are some of the most common explosions in the Universe,” says astrophysicist Adam Miller from Northwestern University.

Jul 27, 2020

Infertile woman treated with new ovary-stimulating technique, IVA, gives birth

Posted by in category: futurism

In vitro activation (IVA) led to the birth of a healthy boy in Japan using a previously infertile woman’s own eggs.

Jul 27, 2020

NASA’s Ingenuity—the First Ever Off-World Helicopter—Is Set for a ‘Wright Brothers Moment’ on Mars

Posted by in category: space

Launching with the Perseverance rover, this technology demonstration could lead to revolutionary new capabilities in interplanetary exploration.

Jul 27, 2020

“Self-Eating” Stem Cells May Hold the Key to New Regenerative Therapies

Posted by in category: biotech/medical

The self-eating process in embryonic stem cells known as chaperone-mediated autophagy (CMA) and a related metabolite may serve as promising new therapeutic targets to repair or regenerate damaged cells and organs, Penn Medicine researchers show in a new study published online in Science.

Human bodies contain over 200 different types of specialized cells. All of them can be derived from embryonic stem (ES) cells, which relentlessly self-renew while retaining the ability to differentiate into any cell type in adult animals, a state known as pluripotency. Researchers have known that the cells’ metabolism plays a role in this process; however, it wasn’t clear exactly how the cells’ internal wiring works to keep that state and ultimately decide stem cell fate.