Manipulating mitochondrial networks inside cells may increase lifespan and promote health, according to a new study.
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Category: biotech/medical
This film “Cyborgs Among Us” that has a segment on my #transhumanism work (as well as many others in our community) has its #Dutch premier on Nov 10 in a major international science film festival. Go see it if you can!
Imagine having a sixth sense! These are the first cyborgs that transcend the boundaries of human possibility and spark the debate about the technological evolution of mankind. Cyborgs Among Us offers insight into how technology can become part of us and the social and ethical implications associated with it.
Professor Wouter Serdijn from Delft University of Technology explains technology and the human body from the perspective of bioelectronics.
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Atherosclerosis is the number one killer in the world, and science is working on solutions to combat this age-related disease. A new mouse study has shown that the drug trodusquemine can melt away the accumulated arterial plaques that lead to heart attacks and strokes.
What is Atherosclerosis?
Atherosclerosis is an age-related disease in which toxic, oxidized cholesterol deposits in the bloodstream produce inflammation in arterial walls. This causes macrophages to swarm to these fatty deposits to clear up this toxic waste.
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Ozone is a colorless combination of three oxygen atoms. High in the atmosphere, about 7 to 25 miles above the Earth, ozone shields Earth from ultraviolet rays that cause skin cancer, crop damage and other problems.
Scientists at the United Nation a few years ago determined that without the 1987 treaty there would have been an extra 2 million skin cancer cases by 2030. They said overall the ozone layer is beginning to recover because of the phase-out of chemicals used in refrigerants and aerosol cans.
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What if we could stop aging forever?
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The folks at Kurzgesagt have created another great video about aging and thanks to them for giving us the opportunity to work with them in creating this video. If you would like to support our work check out (https://www.lifespan.io/campaigns/join-us-become-a-lifespan-hero/).
The video today discusses the near future technologies that are changing how we treat aging and could potentially bring it under medical control soon. It is important to discuss this topic now and its great to see popular channels like Kurzgesagt are keen to get involved in that dialogue.
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The CRISPR-Cas9 system has revolutionised gene-editing, but cutting DNA isn’t all it can do. From turning gene expression on and off to fluorescently tagging particular sequences, this animation explores some of the exciting possibilities of CRISPR.
Download a poster on ‘The expanding CRISPR toolbox’ here: https://www.nature.com/posters/crisprtoolbox
Produced with support from Dharmacon: https://www.dharmacon.com
Nature has full responsibility for all editorial content, including Nature Video content. This content is editorially independent of sponsors.
31st October 2017
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In many ways, stem cells are the divas of the biological world. On the one hand, these natural shapeshifters can transform themselves into virtually any type of cell in the body. In that regard, they hold the promise of being able to cure ills ranging from spinal cord injuries to cancers.
On the other hand, said associate professor of materials science and engineering Sarah Heilshorn, stem cells, like divas, are also mercurial and difficult to work with.
“We just don’t know how to efficiently and effectively grow massive numbers of stem cells and keep them in their regenerative state,” Heilshorn said. “This has prevented us from making more progress in creating therapies.”
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A new drug being trialled for treating breast cancer and diabetes has been shown to ‘melt away’ the fat inside arteries that can cause heart attacks and strokes.
Researchers from the University of Aberdeen, using pre-clinical mouse models, showed that just a single dose of the drug (Trodusquemine) completely reversed the effects of a disease that causes a host of heart problems.
Atherosclerosis is the build-up of fatty material inside the arteries.
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Understanding the factors that control aging has been one of humanity’s endless pursuits, from the mystical fountain of youth to practical healthful regimens to prolong life expectancy.
A team of scientists at the University of California San Diego has helped decipher the dynamics that control how our cells age, and with it implications for extending human longevity. As described in a study published in the Proceedings of the National Academy of Sciences, a group led by biologist Nan Hao employed a combination of technologies in engineering, computer science and biology to analyze molecular processes that influence aging.
As cells age, damage in their DNA accumulates over time, leading to decay in normal functioning and eventually resulting in death. A natural biochemical process known as “chromatin silencing” helps protect DNA from damage. The silencing process converts specific regions of DNA from a loose, open state into a closed one, thus shielding DNA regions. Among the molecules that promote silencing is a family of proteins—broadly conserved from bacteria to humans—known as sirtuins. In recent years, chemical activators of sirtuins have received much attention and are being marketed as nutraceuticals to aid chromatin silencing in the hopes of slowing the aging process.
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