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The rebooting came in the form of a gene therapy involving three genes that instruct cells to reprogram themselves—in the case of the mice, the instructions guided the cells to restart the epigenetic changes that defined their identity as, for example, kidney and skin cells, two cell types that are prone to the effects of aging. These genes came from the suite of so-called Yamanaka stem cells factors—a set of four genes that Nobel scientist Shinya Yamanaka in 2006 discovered can turn back the clock on adult cells to their embryonic, stem cell state so they can start their development, or differentiation process, all over again. Sinclair didn’t want to completely erase the cells’ epigenetic history, just reboot it enough to reset the epigenetic instructions. Using three of the four factors turned back the clock about 57%, enough to make the mice youthful again.

“We’re not making stem cells, but turning back the clock so they can regain their identity,” says Sinclair. “I’ve been really surprised by how universally it works. We haven’t found a cell type yet that we can’t age forward and backward.”

Rejuvenating cells in mice is one thing, but will the process work in humans? That’s Sinclair’s next step, and his team is already testing the system in non-human primates. The researchers are attaching a biological switch that would allow them to turn the clock on and off by tying the activation of the reprogramming genes to an antibiotic, doxycycline. Giving the animals doxycycline would start reversing the clock, and stopping the drug would halt the process. Sinclair is currently lab-testing the system with human neurons, skin, and fibroblast cells, which contribute to connective tissue.

Summary: Researchers develop a novel tool that allows for the study of the communication of microbes in the gastrointestinal tract and the brain.

Source: Baylor College of Medicine.

In the past decade, researchers have begun to appreciate the importance of a two-way communication that occurs between microbes in the gastrointestinal tract and the brain, known as the gut–brain axis.

𝐁𝐫𝐞𝐚𝐤𝐭𝐡𝐫𝐨𝐮𝐠𝐡!

𝐍𝐞𝐮𝐫𝐨𝐬𝐜𝐢𝐞𝐧𝐭𝐢𝐬𝐭𝐬 𝐬𝐨𝐥𝐯𝐞 𝐦𝐲𝐬𝐭𝐞𝐫𝐢𝐞𝐬 𝐚𝐛𝐨𝐮𝐭 𝐥𝐞𝐚𝐝𝐢𝐧𝐠 𝐛𝐢𝐨𝐦𝐚𝐫𝐤𝐞𝐫 𝐟𝐨𝐫 𝐀𝐥𝐳𝐡𝐞𝐢𝐦𝐞𝐫’𝐬

𝙐𝙣𝙞𝙫𝙚𝙧𝙨𝙞𝙩𝙮 𝙤𝙛 𝙑𝙞𝙧𝙜𝙞𝙣𝙞𝙖 𝙣𝙚𝙪𝙧𝙤𝙨𝙘𝙞𝙚𝙣𝙩𝙞𝙨𝙩𝙨 𝙝𝙖𝙫𝙚 𝙧𝙚𝙫𝙚𝙖𝙡𝙚𝙙 𝙝𝙤𝙬 𝙖 𝙩𝙤𝙭𝙞𝙘 𝙛𝙤𝙧𝙢 𝙤𝙛 𝙩𝙖𝙪 𝙥𝙧𝙤𝙩𝙚𝙞𝙣, 𝙣𝙤𝙩𝙤𝙧𝙞𝙤𝙪𝙨 𝙛𝙤𝙧 𝙛𝙤𝙧𝙢𝙞𝙣𝙜 𝙩𝙖𝙣𝙜𝙡𝙚𝙨 𝙞𝙣 𝙩𝙝𝙚 𝙗𝙧𝙖𝙞𝙣𝙨 𝙤𝙛 𝙥𝙚𝙤𝙥𝙡𝙚 𝙬𝙞𝙩𝙝 𝘼𝙡𝙯𝙝𝙚𝙞𝙢𝙚𝙧’𝙨 𝙙𝙞𝙨𝙚𝙖𝙨𝙚 𝙖𝙣𝙙 𝙨𝙚𝙫𝙚𝙧𝙖𝙡 𝙤𝙩𝙝𝙚𝙧 𝙣𝙚𝙪𝙧𝙤𝙙𝙚𝙜𝙚𝙣𝙚𝙧𝙖𝙩𝙞𝙫𝙚 𝙙𝙞𝙨𝙤𝙧𝙙𝙚𝙧𝙨, 𝙨𝙥𝙧𝙚𝙖𝙙𝙨 𝙩𝙝𝙧𝙤𝙪𝙜𝙝 𝙩𝙝𝙚 𝙗𝙧𝙖𝙞𝙣 𝙖𝙨 𝙩𝙝𝙚 𝙙𝙞𝙨𝙚𝙖𝙨𝙚 𝙥𝙧𝙤𝙜𝙧𝙚𝙨𝙨𝙚𝙨.

Continue reading “UVA Solves Mysteries About Leading Biomarker for Alzheimer’s” »

A SpaceX Cargo Dragon 2 spacecraft has safely returned to Earth after delivering several tons of NASA supplies to the International Space Station (ISS).

A little over six weeks after Falcon 9 launched SpaceX’s 26th Commercial Resupply Services 2 (CRS2) mission for NASA, Dragon departed the ISS on January 9th. Efficiently lowering its orbit with several small Draco thrusters took about 36 hours, and reusable Dragon 2 capsule C211 eventually slowed to the point that it began impacting Earth’s atmosphere. Using its ablative heat shield like a brake pad, Dragon slowed from a velocity of 7.5 kilometers per second (16,800 mph) to about 155 meters per second (~350 mph) before beginning parachute deployment.

At 5:19 am on January 11th, the Dragon capsule gently splashed down off the coast of Tampa, Florida, and was quickly secured by a SpaceX recovery ship. Once onboard, the capsule was opened up, and cargo fresh from orbit was loaded onto a helicopter as quickly as possible. That system – primarily created to rapidly transport astronauts back to NASA medical facilities – also means that scientists can get access to their recovered ISS experiments just a handful of hours after Cargo Dragon splashes down.

This might be important. It might not be over for metformin just yet though as a mice study showed that rapamycin combined with metformin removed each other’s side effects.

If you are a non-diabetic who takes metformin for longevity, I highly recommend you stop immediately. Hear me out, and at the end of the video I’ll share what to do instead.

Continue reading “Metformin For Anti-Aging: Disproved & Dangerous!” »

We flew to the UK to learn more about the designer 3D-printing third thumbs. Is this the dawn of human body augmentation?

Watch the Hard Reset series ► https://www.youtube.com/playlist?list=PLXthoedLVIdLvnNgiCshQvqKdS7T_qeGY

Continue reading “Bionic 3rd thumb: The future of human augmentation | Hard Reset” »

Scientists at the University of Cambridge have successfully trialed an artificial pancreas for use by patients living with type 2 diabetes. The device – powered by an algorithm developed at the University of Cambridge – doubled the amount of time patients were in the target range for glucose compared to standard treatment and halved the time spent experiencing high glucose levels.

Around 415 million people worldwide are estimated to be living with type 2 diabetes, which costs around $760 billion in annual global health expenditure. According to Diabetes UK, more than 4.9 million people have diabetes in the UK alone, of whom 90% have type 2 diabetes, and this is estimated to cost the NHS £10 billion per year.

“Many people with type 2 diabetes struggle to manage their blood sugar levels using the currently available treatments, such as insulin injections. The artificial pancreas can provide a safe and effective approach to help them, and the technology is simple to use and can be implemented safely at home.” —

San Diego-based biotech startup Rejuvenate Bio is making a major claim that’ll likely draw heated scrutiny from the scientific community: that its technology was able to significantly extend the lives of elderly mice.

According to a yet-to-be-peer-reviewed paper, scientists at the company say an injection that reprograms genes in the bodies of senior mice effectively doubled their remaining life span, MIT Technology Review reports.

In tests, the company found that treated mice lived on for another 18 weeks on average. Those who were not treated in a control group only lived for another nine weeks. Overall, they say, the gene hacked mice lived roughly seven percent longer overall.

Scientists from The Australian National University (ANU) and the Peter MacCallum Cancer Centre have discovered that a protein, called Menin, contributes to abnormal deactivation of specific genes in cancer cells.

One of the hallmarks of cancer is that the normal regulation of genes is disrupted, and this causes cancer cells to look and behave differently to normal cells. Cancer cells can switch off certain genes, keeping them in a dormant state. By deactivating specific immune genes, some cancers are able to evade detection by the immune system, essentially becoming invisible. This allows the cancer to grow and become more aggressive.

By targeting the Menin protein using drug therapies, the researchers believe they can reactivate these genes, making the cancer cells once again visible and allowing the immune system to seek out and destroy them.