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A new study shows that humans express a powerful hormone during exercise and that treating mice with the hormone improves physical performance, capacity and fitness. Researchers say the findings present new possibilities for addressing age-related physical decline.

The research, published on Wednesday in Nature Communications, reveals a detailed look at how the encodes instructions for regulating physical capacity, performance and metabolism during aging and may be able to increase healthy lifespan.

“Mitochondria are known as the cell’s energy source, but they are also hubs that coordinate and fine-tune metabolism by actively communicating to the rest of the body,” said Changhan David Lee, assistant professor at the USC Leonard Davis School of Gerontology and corresponding author of the study. “As we age, that seems to break down, but our study suggests you can restore that network or rejuvenate an older mouse so it is as fit as a younger one.”

Scientists in Beijing may be one step closer to having the answer to living longer and reversing the effects of ageing. A group of biologists at the Chinese Academy of Sciences say they have developed a world-first new gene therapy and have been running tests on mice. It involved screening around 10000 genes in search of particularly strong drivers of cellular ageing. They identified 100 genes in that pool, but the one that really stood out was the kat7. They then inactivated that kat7 gene in the livers of mice, Professor Qu Jing explained some of their findings: “These mice show after six to eight months, they show overall improved appearance and grip strength and most importantly they have extended lifespan for about 25%.” Kat7 is one of tens of thousands of genes found in the cells of mammals. The scientists also tested the function of the gene in human stem cells, human liver cells and more. So far there have been no side effects of cellular toxicity. Despite this, the method still has a long way to go from being ready for human trials and will require a lot of funding and much more research. “In the end we do hope that we can find a way to delay ageing even by a very minor percentage we want to delay the human ageing in the future.” For now, there’s no final answer to cheating death, but the scientists plan on testing the function of kat7 in other cell types of humans and other organs of mice.

Nearly every galaxy hosts a monster at its center—a supermassive black hole millions to billions times the size of the Sun. While there’s still much to learn about these objects, many scientists believe they are crucial to the formation and structure of galaxies. What’s more, some of these black holes are particularly active, whipping up stars, dust and gas into glowing accretion disks emitting powerful radiation into the cosmos as they consume matter around them. These quasars are some of the most distant objects that astronomers can see, and there is now a new record for the farthest one ever observed.

A team of scientists, led by former UC Santa Barbara postdoctoral scholar Feige Wang and including Professor Joe Hennawi and current postdoc Riccardo Nanni, announced the discovery of J0313-1806, the most distant quasar discovered to date. Seen as it would have appeared more than 13 billion years ago, this fully formed distant quasar is also the earliest yet discovered, providing astronomers insight into the formation of massive galaxies in the early universe. The team’s findings were released at the January 2021 meeting of the American Astronomical Society and published in Astrophysical Journal Letters.

Quasars are the most energetic objects in the universe. They occur when gas in the superheated accretion disk around a supermassive black hole is inexorably drawn inwards, shedding energy across the electromagnetic spectrum. This releases enormous amounts of electromagnetic radiation, with the most massive examples easily outshining entire galaxies.

The SonoMask displayed an ability to neutralize the novel coronavirus at an effectiveness of 99.34% within trials performed by the ATCCR Testing laboratory in China, Ramat Gan-based Israeli fabric maker and developer Sonovia announced on Saturday. Sonovia’s reusable anti-viral masks are coated in zinc oxide nanoparticles that destroy bacteria, fungi and viruses, which it says can help stop the spread of the coronavirus. Results from the most recent round of testing showed that the mask has the ability to neutralize fallen traces of SARS-COV-2 within 30 minutes after making contact with the fabric. The SonoMask was also proven to maintain its protective properties throughout 55 wash cycles.” Following this outstanding result – the product of several months of dedicated anti-viral sonochemistry formulation – we can now assure the public that our SonoMask is working continuously, permanently and rapidly to neutralize the spread of COVID-19,” said Sonovia CEO Joshua Hershcovici. “We are proud of our latest accomplishment that will help people feel safe and protect their loved ones, all the while remaining the most ecologically sound option upon the PPE market.” Sonovia also participated in trials with Adler Plastic in Italy earlier this year, working toward creating a solution for carpets and other types of fabrics. The company boasted a 99.999% efficiency rate against bacteria during the pilot testing round. Furthermore, the Israeli fabric maker has attracted the cooperation of top brands such as Gucci, Chanel and Adidas, working on the Fashion for Good Plug and Play accelerator project – and earning a $250000 investment for their innovation.” We see our breakthrough technology transforming our everyday life, implemented in all textiles surrounding us: from the clothes we wear, to the textiles in our home, the textiles in our public spaces, in public transportation and of course as a protective measure in the workplaces & medical institutes – in a manner that ensures safer surroundings during these unusual times,” said Sonovia’s Chief Technology Officer Liat Goldhammer.

Tokyo, Jan. 21 (Jiji Press)—The U.N. treaty to ban the production, possession and use of nuclear weapons has started taking effect in countries that ratified it by October last year.

Among the 50 signatories, Kiribati and other island countries in the South Pacific became the first to see the nuclear weapons ban treaty coming into force on Friday, the day of effectuation in respective time zones.

The landmark international treaty was adopted in 2017 with support from 122 nations and regions at the initiative of nonnuclear weapons states frustrated with long-stalled disarmament talks. It met the requirement of having 50 member states as Honduras ratified it in late October.