Lifeboat Foundation

At 190 years old, Jonathan the Seychelles giant tortoise recently made news for being the “oldest living land animal in the world.” Although, anecdotal evidence like this exists that some species of turtles and other ectotherms—or ‘cold-blooded’ animals—live a long time, evidence is spotty and mostly focused on animals living in zoos or a few individuals living in the wild. Now, an international team of 114 scientists, led by Penn State and Northeastern Illinois University, reports the most comprehensive study of aging and longevity to date comprising data collected in the wild from 107 populations of 77 species of reptiles and amphibians worldwide.

Among their many findings, which they report today in the journal Science, the researchers documented for the first time that turtles, crocodilians and salamanders have particularly low aging rates and extended lifespans for their sizes. The team also found that protective phenotypes, such as the hard shells of most turtle species, contribute to slower aging, and in some cases even ‘negligible aging’—or lack of biological aging.

“Anecdotal evidence exists that some reptiles and amphibians age slowly and have long lifespans, but until now no one has actually studied this on a large scale across numerous species in the wild,” said David Miller, senior author and associate professor of wildlife population ecology, Penn State. “If we can understand what allows some animals to age more slowly, we can better understand aging in humans, and we can also inform conservation strategies for reptiles and amphibians, many of which are threatened or endangered.”

At 79, he’s already outlived the CDC’s official life expectancy by two years and he has no intention of dying — or even slowing down — anytime soon. An active man, Scott jets between his homes in upstate New York and Florida, flies to exotic locations such as Panama City for business and still finds time for the odd cruise. His secret? A DIY regime of self-experimentation and untested therapies he believes will keep him going well past the next century.

Self-experimenters litter the history of medical science. Dentist Horace Wells dosed himself with nitrous oxide in 1,844 to see if it could kill pain, Nicholas Senn inflated his innards with hydrogen a few decades later to work out if it could diagnose a ruptured bowel, and more recently, Barry Marshall drank a solution containing H. pylori in 1985 to prove the bacterium caused ulcers.

These scientists risked their own health to make a medical breakthrough or prove a theory, but Scott is not a scientist. He’s an amateur enthusiast, also known as a biohacker. Biohackers engage in DIY biology, experimenting on themselves to enhance their brain and body. And many of them — like Scott — see longevity as the ultimate prize.

Researchers at the University of Houston are reporting a first-of-its-kind technology that not only repairs heart muscle cells in mice but also regenerates them following a heart attack, or myocardial infarction as its medically known.

Published in The Journal of Cardiovascular Aging 0, the groundbreaking finding has the potential to become a powerful clinical strategy for treating heart disease in humans, according to Robert Schwartz, Hugh Roy and Lillie Cranz Cullen Distinguished Professor of biology and biochemistry at the UH College of Natural Sciences and Mathematics.

The new technology developed by the team of researchers uses synthetic messenger ribonucleic acid (mRNA) to deliver mutated transcription factors — proteins that control the conversion of DNA into RNA — to mouse hearts.

As electric vehicles have become more popular across America, Texas is now putting forward a plan to expand charging infrastructure.

Vitamins are sometimes overlooked in the fight against aging compared to the vast variety of creams and serums, but research shows that vitamins are a key part of slowing the aging process. While topical serums and creams may slow the appearance of aging in areas where they are applied, they cann.

Vitamins are sometimes overlooked in the fight against aging compared to the vast variety of creams and serums, but research shows that vitamins are a key part of slowing the aging process.

While topical serums and creams may slow the appearance of aging in areas where they are applied, they cannot fight the aging happening within your body, and some anti-aging ingredients cannot be absorbed through the skin, making topical application pointless. Vitamins, meanwhile, work from the inside out, resulting in both inner and outer health. This does not mean you need to forgo topical solutions — the most powerful anti-aging regimes use both vitamins and topical creams to form a powerful, multi-pronged defense.

Vitamins and supplements help us ensure we are getting the nutrients we need, particularly if we are deficient — and according to experts, many adults do not get enough vitamin D^[1] or B12,^[2] leading to otherwise preventable age-related disorders and poor health.

Australian scientists have taken the first step towards improved storage of human cells, which may lead to the safe storage of organs such as hearts and lungs.

The team’s discovery of new cryoprotective agents opens the door to many more being developed that could one day help to eliminate the need for organ transplant waiting lists. Their results are published in the Journal of Materials Chemistry B.

Cryopreservation is a process of cooling biological specimens down to very low temperatures so they can be stored for a long time. Storing cells through cryopreservation has had big benefits for the world—including boosting supplies at blood banks and assisting reproduction—but it is currently impossible to store organs and simple tissues.

Artificial intelligence (AI) and machine learning techniques have proved to be very promising for completing numerous tasks, including those that involve processing and generating language. Language-related machine learning models have enabled the creation of systems that can interact and converse with humans, including chatbots, smart assistants, and smart speakers.

To tackle dialog-oriented tasks, language models should be able to learn high-quality dialog representations. These are representations that summarize the different ideas expressed by two parties who are conversing about specific topics and how these dialogs are structured.

Researchers at Northwestern University and AWS AI Labs have recently developed a self-supervised learning model that can learn effective dialog representations for different types of dialogs. This model, introduced in a paper pre-published on arXiv, could be used to develop more versatile and better performing dialog systems using a limited amount of training data.

➡ Nous enregistrons nos podcasts avec Riverside: Cliquer sur le lien pour commencer une période d’essai : https://tinyurl.com/5bxnwnda.
⚠️ Découvrez du contenu EXCLUSIF (pas sur la chaîne) ⚠️ ⇒ https://the-flares.com/y/bonus/

⬇️⬇️⬇️ Infos complémentaires : sources, références, liens… ⬇️⬇️⬇️

Continue reading “Vers la fin du vieillissement biologique? avec Aubrey de Grey | The Flares” »

Rune Labs, a precision neurology company, has announced its StrivePD software ecosystem for Parkinson’s disease has been granted 510(k) clearance by the US Food and Drug Administration (FDA) to collect patient symptom data through measurements made by Apple Watch.

By combining powerful wearable technology and self-reported symptom information with brain imaging, electrophysiology, genetic and other clinical data, StrivePD enables a data-driven approach to care management and clinical trial design for Parkinson’s.

Longevity. Technology: With this clearance, the Rune Labs’ StrivePD app enables precision clinical care and trial participation for tens of thousands of Parkinson’s patients who already use these devices in their daily lives.