Cryonicists hope that modern technology will one day bring them back from the dead. But how realistic is a second life after a deep freeze?
Category: life extension – Page 222
This disparity gets at the difference between one’s chronological age — how old they are in years — and their biological age, which is how their body has aged naturally and in response to its environment. The two can diverge in ways that are either blessings or curses. Hence why those who grow up under extreme stress or in polluted environments may look much older than they actually are.
And yellow-bellied marmots can tell us something about these two ages.
Yellow-bellied marmots (Marmota flaviventer) are no burrow-dwelling meteorologists like the groundhog. They may sound craven, but these quirky critters, also known as whistle pigs, make for fascinating subjects: the cat-sized rodents have a longer lifespan than expected for a mammal of their size. On average, marmots live 15 years.
A little confusing. Cure aging in 20 years but you’re not a longevity company?
Altos Labs recently exited stealth mode to announce $3 billion in funding, reportedly from investors including Jeff Bezos, and a team full of Nobel Prize winners and pioneering scientists. However, the secretive company’s representatives insist that “Altos is not an anti-aging or longevity company”. Despite this, a key member of their scientific leadership recently publicly stated that he is convinced that, using the same technologies they are working with at Altos, we will be able to prevent aging within twenty years.
The scientist making these bold statements is Juan Carlos Izpisua Belmonte, a Spanish biologist who has spent years pioneering innovations in developmental biology, regenerative medicine and aging research at the Salk Institute.
How Jeff Bezos and Altos Labs are challenging death itself: The science of partial cellular reprogramming!
Hey it’s Han from WrySci-HX going over the science behind Altos Labs (the biotech company looking to extend healthspan and lifespan), news from the cultured meat industry, developments on a new device that can change your skin into nerve cells, and other science / technology happenings! More below ↓↓↓
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Summary: Body temperature exerts a greater effect on longevity and lifespan than metabolic rate, researchers report.
Source: Chinese Academy of Sciences.
Researchers from the Shenzhen Institute of Advanced Technology (SIAT) of the Chinese Academy of Sciences, along with collaborators from Wenzhou University and the University of Aberdeen, have found that body temperature exerts a greater effect on lifespan than metabolic rate.
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Levine’s Biological age calculator is embedded as an Excel file in this link from my website:
Senolytics are an emerging class of drugs designed to target zombie-like cells that have stopped dividing and build up in the body as we age, and the past few years have seen some exciting discoveries that demonstrate their potential. Adding another to the list are Mayo Clinic researchers, who have shown that these drugs can protect against aging and its related diseases, by acting on a protein long associated with longevity.
The zombie-like cells involved in this research are known as senescent cells, and their accumulation during aging is associated with a range of diseases. Recent studies have shown that using senolytics to clear them out could serve as new and effective treatments for dementia and diabetes, and also improve health and lifespan more broadly.
The Mayo Clinic team were exploring how senolytics can influence levels of a protein called a-klotho, known to help protect older people from the effects of aging. The role of this protein in the aging process is well established and has placed it at the center of much research in this space, with studies demonstrating how it could help reverse osteoarthritis and regenerate old muscles.
Immortal jellyfish could actually be the key to immortality and regeneration. This article talks more in depth of its importance in the search of immortality.
Turritopsis nutricula (T. nutricula) is the one of the known reported organisms that can revert its life cycle to the polyp stage even after becoming sexually mature, defining itself as the only immortal organism in the animal kingdom. Therefore, the animal is having prime importance in basic biological, aging, and biomedical researches. However, till date, the genome of this organism has not been sequenced and even there is no molecular phylogenetic study to reveal its close relatives. Here, using phylogenetic analysis based on available 16s rRNA gene and protein sequences of Cytochrome oxidase subunit-I (COI or COX1) of T. nutricula, we have predicted the closest relatives of the organism. While we found Nemopsis bachei could be closest organism based on COX1 gene sequence; T. dohrnii may be designated as the closest taxon to T. nutricula based on rRNA. Moreover, we have figured out four species that showed similar root distance based on COX1 protein sequence.
Keywords: Turritopsis nutricula, immortal jellyfish, trans-differentiation, phylogeny, relativeness.
Gerontologists and biologists reached a consensus “evolutionary theory of aging,” [1, 2] embedding aging research into the mainstream of biological research. T. nutricula is the one of the known hydrozoan in the animal kingdom that can revert back into the immature polyp stage after reaching sexual maturity, designating itself as the only immortal animal [3]. T. nutricula interplay with the polyp and sexual maturity stages by virtue of trans-differentiation process [4]. Theoretically, this process can go on indefinitely therefore, the organism can be considered as biologically immortal and does not experience aging. Hence, in the basic biology of aging research, the organism has found itself great importance [5]. If a cell or organism undergoes aging, there are two vital biological processes viz.
Circa 2021 😃
CRISPR-induced KAT7 gene inactivation rejuvenates prematurely aging human cells and mice and promotes longevity.
This starts with Tyson’s deathism quote, but I’m still a fan. I do wonder if he’ll take a treatment when he sees everyone else rejuvenating around him.