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Archive for the ‘biotech/medical’ category: Page 605

May 31, 2023

Scientists Discover Chinmo — “The Youth Gene”

Posted by in categories: biotech/medical, evolution

Researchers discover Chimno, the gene responsible for the juvenile stage in insects. This gene is present in mammals and could play a key role in cancerous processes.

The study, which was published in the journal eLife and led by the Institute for Evolutionary Biology (IBE, CSIC-UPF) and the IRB Barcelona, has revealed that the Chinmo gene is responsible for establishing the juvenile stage in insects. It also confirms that the Br-C and E93 genes play a regulatory role in insect maturity. These genes, which are also present in humans, act as a promoter and as a suppressor, respectively, of cancerous processes.

The results of the research, which was carried out with the fruit fly Drosophila melanogaster and the cockroach Blatella germanica, reveal that these genes have been conserved throughout the evolution of insects. Therefore, it is believed that they could play a key role in the evolution of metamorphosis.

May 31, 2023

The Legacy of a Disappointing HIV Clinical Trial — Does It Still Apply to HIV Today?

Posted by in category: biotech/medical

A long, long time ago, back in the early exciting days of raltegravir, the first HIV integrase inhibitor, we learned something important from a clinical trial with disappointing results. The trial bore the (barely) hidden name of the company that developed the drug — SWITCHMRK, get it? — and had a profound impact on how we managed virologically suppressed patients for years.

What did we learn? Namely, that it was risky to switch stable people from their “high resistance barrier” regimen of lopinavir/ritonavir plus NRTIs to raltegravir plus NRTIs if they harbored viruses with NRTI resistance. Some of the participants who had a history of treatment failure who switched ended up experiencing virologic rebound with integrase inhibitor resistance, which made the switch to raltegravir not noninferior (sorry for the double negative) to continuing lopinavir/ritonavir.

The interpretation was that despite the potency and excellent tolerability of raltegravir — massively better than lopinavir/ritonavir — it wasn’t enough to maintain viral suppression reliably unless the NRTIs were also fully active. Based on these results, for years we steered clear of use of this valuable drug class in any setting where we couldn’t use at least one other fully active drug.

May 31, 2023

Cells, Not DNA, Are The Master Architects Of Life

Posted by in category: biotech/medical

Far from being a blueprint for an organism, genes are mere tools used by life’s true expert builders: cells.

May 31, 2023

Scientists use AI to discover new antibiotic to treat deadly superbug

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

AI used to discover abaucin, an effective drug against A baumannii, bacteria that can cause dangerous infections.

May 31, 2023

This Week’s Awesome Tech Stories From Around the Web (Through May 27)

Posted by in categories: biotech/medical, internet, quantum physics, robotics/AI

From AI discovering a new antibiotic to IBM’s planned 100,000-qubit quantum computer, check out this week’s awesome tech stories from around the web.

May 31, 2023

First-of-Its-Kind Gene Therapy Can Be Applied to Skin Instead of Injected

Posted by in categories: biotech/medical, genetics

The root cause is frustratingly simple: one gene mutation, which affects a critical protein that helps support skin integrity. The single genetic error makes the illness a perfect candidate for gene therapy. Yet with the skin already fragile, injections—a current standard for gene therapy—are hard to tolerate.

What about a genetic moisturizer instead?

This month, the FDA approved the first rub-on gene therapy. Similar to aloe vera for treating sunburns, the therapy comes in a gel that’s gently massaged onto blisters and wounds to help with healing. Dubbed Vyjuvek, it directly delivers healthy copies of the mutated gene onto damaged skin. An alternative version is configured into eye drops to reconstruct the eye’s delicate architecture to better support sight.

May 31, 2023

Chinese scientists say their new gene-editing tool is precise and safe

Posted by in categories: biotech/medical, genetics

‘Base editors’ fix specific sites in the genome without cutting the DNA double helix, according to team.

May 31, 2023

Vitalik Buterin Exclusive Interview: Longevity, AI and More

Posted by in categories: biotech/medical, cryptocurrencies, life extension, robotics/AI

Don’t try finding Zuzalu on a map; it doesn’t exist anymore. It was a “pop-up city” conceived by the tech entrepreneur Vitalik Buterin, creator of Ethereum, and a group of like-minded people to facilitate co-living and collaboration in fields like crypto, network states, AI, and longevity. It was also, in substantial part, funded by Vitalik.

Zuzalu, located on the Adriatic coast of Montenegro, began its short history on March 25 and wound down on May 25. It was a complex and memorable phenomenon, and I’m wrapping my mind around a larger article in the works.

Usually, I don’t eat breakfast due to my intermittent fasting regimen, but in Zuzalu, breakfast, served at a particular local restaurant, was the healthiest meal of the day. Also, it was free (kudos to Vitalik, and more on that later). Most importantly, it was the place to meet new people.

May 30, 2023

Can prediabetes be reversed via diet and exercise?

Posted by in categories: biotech/medical, health

Diabetes — specifically type 2 diabetes— is becoming one of the most challenging health problems of the 21st century. By 2,025,380 million people worldwide are also expected to be diagnosed with diabetes.

May 30, 2023

The Science & Art of Longevity

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

A groundbreaking manifesto on living better and longer that challenges the conventional medical thinking on aging and reveals a new approach to preventing chronic disease and extending long-term health, from a visionary physician and leading longevity expert.

“One of the most important books you’ll ever read.”—Steven D. Levitt, New York Times bestselling author of Freakonomics

Wouldn’t you like to live longer? And better? In this operating manual for longevity, Dr. Peter Attia draws on the latest science to deliver innovative nutritional interventions, techniques for optimizing exercise and sleep, and tools for addressing emotional and mental health.

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