Menu

Blog

Page 2609

Jan 22, 2023

Gene Therapy Mediated Partial Reprogramming Extends Lifespan and Reverses Age-Related Changes in Aged Mice

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

Aging is a complex process best characterized as the chronic dysregulation of cellular processes leading to deteriorated tissue and organ function. While aging cannot currently be prevented, its impact on lifespan and healthspan in the elderly can potentially be minimized by interventions that aim to return these cellular processes to optimal function. Recent studies have demonstrated that partial reprogramming using the Yamanaka factors (or a subset; OCT4, SOX2, and KLF4; OSK) can reverse age-related changes in vitro and in vivo. However, it is still unknown whether the Yamanaka factors (or a subset) are capable of extending the lifespan of aged wild type mice. Here, we show that systemically delivered AAVs, encoding an inducible OSK system, in 124-week-old mice extends the median remaining lifespan by 109% over wild-type controls and enhances several health parameters. Importantly, we observed a significant improvement in frailty scores indicating that we were able to improve the healthspan along with increasing the lifespan. Furthermore, in human keratinocytes expressing exogenous OSK, we observed significant epigenetic markers of age-reversal, suggesting a potential reregulation of genetic networks to a younger, potentially healthier state. Together, these results may have important implications for the development of partial reprogramming interventions to reverse age-associated diseases in the elderly.

All authors performed the work while employed at Rejuvenate Bio Inc. Rejuvenate Bio is a therapeutics company translating gene therapies to treat age-related diseases.

Jan 22, 2023

Resurrecting the Dead (Molecules)

Posted by in categories: biological, evolution, genetics

Year 2017 face_with_colon_three


Biological molecules, like organisms themselves, are subject to genetic drift and may even become “extinct”. Molecules that are no longer extant in living systems are of high interest for several reasons including insight into how existing life forms evolved and the possibility that they may have new and useful properties no longer available in currently functioning molecules. Predicting the sequence/structure of such molecules and synthesizing them so that their properties can be tested is the basis of “molecular resurrection” and may lead not only to a deeper understanding of evolution, but also to the production of artificial proteins with novel properties and even to insight into how life itself began.

Jan 22, 2023

Fine Tuning Explained? Multiverses and Cellular Automata on JSTOR

Posted by in category: cosmology

Year 2013 face_with_colon_three


Francisco José Soler Gil, Manuel Alfonseca, Fine Tuning Explained? Multiverses and Cellular Automata, Journal for General Philosophy of Science / Zeitschrift für allgemeine Wissenschaftstheorie, Vol. 44, No. 1 (July 2013), pp. 153–172.

Jan 22, 2023

Galactic beauty: Stunning NGC 7513 galaxy captured by Hubble telescope

Posted by in category: space

Read more about it here: https://ow.ly/jV1H50Mtv2S📷 @esa / @HUBBLE_space & @NASA M. Stiavelli, P. Erwin et al. pic.twitter.com/hprRJ8APnN

— HUBBLE (@HUBBLE_space) January 19, 2023.

Jan 22, 2023

Worst Avian Flu in U.S. History Is Hitting Poultry, Wild Birds, Even Bears

Posted by in categories: biotech/medical, food

Nearly a year after it began, the worst avian-influenza outbreak in U.S. history is continuing to decimate poultry flocks across the Midwest and Colorado, frustrating efforts to keep the virus from affecting the nation’s egg prices and supply.

In South Dakota, the highly contagious bird flu, typically transmitted by the feces, mucus and saliva of wild birds, first hit commercial poultry farms in March 2022 and has continued to affect flocks. Within the last month, egg-laying hens and turkeys at several local farms were infected, leading to the deaths of more than 1.3 million poultry over that period, according to U.S. Department of Agriculture data. Nearly four million poultry have died in the state since the start of the outbreak.

Jan 22, 2023

Exploring Potential Longevity Applications of Rapamycin With ChatGPT

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

In 2020 I joined the private beta test of Open AI’s Generative Pre-trained Transformer 3 (GPT-3), which is an earlier version of ChatGPT. When ChatGPT was released in November 2022, I started experimenting with it. For over two years I’ve been exploring the strengths and limits of this technology and assessing how this tool could be useful to me. I’m also interested how this new technology is being utilized by scientists and academics to make meaningful contributions to academic work and education.

A recent study demonstrated that ChatGPT was able to pass the US Medical Licensing Exam without any special training prior to the exam and was able to demonstrate a high level of insight in its explanations. The results suggest that ChatGPT may be able to assist with medical education.

I published the first article about my experiments with ChatGPT last week. The article entitled How The Evolution Of AI In Healthcare Aligns With Thomas Kuhn’s Structure has been viewed over 13,000 times, and has received and

Jan 22, 2023

‘Partly Alive’: Scientists Revive Cells in Brains From Dead Pigs

Posted by in categories: biotech/medical, neuroscience

Year 2019 face_with_colon_three


In a study that raises profound questions about the line between life and death, researchers have restored some cellular activity to brains removed from slaughtered pigs.

The brains did not regain anything resembling consciousness: There were no signs indicating coordinated electrical signaling, necessary for higher functions like awareness and intelligence.

Continue reading “‘Partly Alive’: Scientists Revive Cells in Brains From Dead Pigs” »

Jan 22, 2023

Another company is opening a regional HQ in North Texas

Posted by in category: futurism

The San Jose, Calif.-based company on Thursday announced plans for the new regional headquarters in Frisco.

McAfee will open offices at The Star development, where the Dallas Cowboys are headquartered, by the middle part of this year, according to a release from Frisco city officials.

Continue reading “Another company is opening a regional HQ in North Texas” »

Jan 22, 2023

‘Pac-Man’ microorganisms gobble down viruses like power pellets

Posted by in categories: energy, food

😗


If these organisms are eating viruses in nature, it could change the way scientists think about global carbon cycling.

Jan 22, 2023

UK Meteorite That Fell To Earth Contains Building Blocks For Life

Posted by in categories: bioengineering, biotech/medical, genetics, singularity

Basically many have theorized that these seeds coming from meteorites mean that essentially perhaps that life started from seeds like this. Going much deeper down the rabbit hole we actually are starting to see a grand design possibly by actually organisms that evolved into what we have now over millions of years which is actually weird because all earth would have been just a rock but this could be a grand architecture genetically even from the first seed to the biological singularity. This could Basically prove the existence of some entity that may have created humans and all life most like from this seed which means whether it is alien gods or God there will be so much more discover due to this complexity which can benefit all medicine and also genetic engineering 🤔 😉 😀


The fact the first of four surviving pieces was collected within 12 hours of landing, allowing little time for contamination, added to the meteorite’s value. Indeed, because the abundance of organic material in the meteorite was ten times lower than in other carbonaceous chondrites, they might not have been distinguishable from Earthly contamination had it not been retrieved so quickly. As it is, some of the amino acids found are quite rare on Earth, confirming their extraterrestrial origins.

The Winchcombe stones had a number of features never previously seen in meteorites, including low amino acid abundance for a carbonaceous chondrite but unusual ratios among the amino acids and PAHs that are present. Combined with the incomplete conversion of Winchcombe’s components into solid rock, this led the authors to speculate Winchcombe could represent a new class of meteorite that has not been studied before.

Continue reading “UK Meteorite That Fell To Earth Contains Building Blocks For Life” »