Archive for the ‘life extension’ category: Page 12

Nov 3, 2023

When will we upload our consciousness to the cloud?

Posted by in categories: biotech/medical, computing, life extension, neuroscience

As long as people have been alive, they’ve wanted to stay alive. For centuries, explorers have searched for the fountain of youth. And today, scientists are hard at work researching technology that can extend the human lifespan, stop or reverse aging; and even preserve a terminally ill person indefinitely, until a cure for their disease is discovered. But what if — instead of preserving our *bodies* — we could preserve our *consciousness*; by uploading it to a powerful computer. This is called *mind uploading*. And one startup has developed a procedure to do exactly this. It’s scientifically sound, there’s a waiting list to participate, and the procedure — is one hundred percent fatal. Let’s find out why.〰
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#science #future #technology

Nov 2, 2023

Mechanism That Forms Connections in the Brain Identified

Posted by in categories: chemistry, life extension, neuroscience

How are synapses formed, those points of contact that allow the transmission of information from one neuron to the other? Working with an international team, researchers from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) have now uncovered a crucial mechanism and elucidated the identity of the axonal transport vesicles that generates synapses. The findings provide an important basis for promoting the regeneration of nerve cells and counteracting the aging process in the future. The results have just been published in the journal Science.

Whether in the brain or in the muscles, wherever there are nerve cells, there are synapses. These contact points between neurons form the basis for the transmission of excitation, i.e. communication between neurons. As in any communication process, there is a sender and a receiver: Nerve cell processes called axons generate and transmit electrical signals thereby acting as signal senders. Synapses are points of contact between axonal nerve terminals (the pre-synapse) and post-synaptic neurons. At these synapses, the electrical impulse is converted into chemical messengers that are received and sensed by the post-synapses of the neighboring neuron. The messengers are released from special membrane sacs called synaptic vesicles.

Nov 2, 2023

‘Plug and play’ nanoparticles could make it easier to tackle various biological targets

Posted by in categories: bioengineering, biotech/medical, life extension, nanotechnology

Engineers at the University of California San Diego have developed modular nanoparticles that can be easily customized to target different biological entities such as tumors, viruses or toxins. The surface of the nanoparticles is engineered to host any biological molecules of choice, making it possible to tailor the nanoparticles for a wide array of applications, ranging from targeted drug delivery to neutralizing biological agents.

The beauty of this technology lies in its simplicity and efficiency. Instead of crafting entirely new for each specific application, researchers can now employ a modular nanoparticle base and conveniently attach proteins targeting a desired biological entity.

In the past, creating distinct nanoparticles for different biological targets required going through a different synthetic process from start to finish each time. But with this new technique, the same modular nanoparticle base can be easily modified to create a whole set of specialized nanoparticles.

Nov 1, 2023

At Abundance 360, David Sinclair made quite a number of encouraging comments about the future of aging research, including methods of resetting epigenetics to a youthful state

Posted by in categories: bioengineering, biotech/medical, chemistry, genetics, life extension, Peter Diamandis, robotics/AI

Emmett Short discusses these comments on this episode of Lifespan News.

But first, the mad scientist David Sinclair, this time with Peter Diamandis at Abundance 360, giving more details into human trials for the genetic engineering side of the technology versus the chemical and pill side of the technology. Which would you want more? We’ll also hear David’s thoughts on how AI will affect the advancement of this tech. Spoiler: A lot. I’m going to play the best parts and add my commentary along the way.

Nov 1, 2023

HbA1c: What’s Optimal, What’s My Data?

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

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Continue reading “HbA1c: What’s Optimal, What’s My Data?” »

Nov 1, 2023

Immune system aging can be revealed by CT scan of thymus, research suggests

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

The thymus, a small and relatively unknown organ, may play a bigger role in the immune system of adults than was previously believed. With age, the glandular tissue in the thymus is replaced by fat, but, according to a new study from Linköping University, the rate at which this happens is linked to sex, age and lifestyle factors. These findings also indicate that the appearance of the thymus reflects the aging of the immune system.

“We doctors can assess the appearance of the thymus from largely all chest CT scans, but we tend to not see this as very important. But now it turns out that the appearance of the thymus can actually provide a lot of valuable information that we could benefit from and learn more about,” says Mårten Sandstedt, MD, Ph.D., at the Department of Radiology in Linköping and Department of Health, Medicine and Caring Sciences, Faculty of Medicine and Health Sciences, Linköping University.

The thymus is a gland located in the upper part of the chest. It has been long known that this small organ is important for immune defense development in children. After puberty, the thymus decreases in size and is eventually replaced by fat, in a process known as fatty degeneration. This has been taken to mean that it loses its function, which is why the thymus has for a long time been considered as being not important in adult life.

Oct 31, 2023

Hebrew U. scientists make special ‘Telomouse’ with human-like telomeres

Posted by in categories: genetics, life extension

Caps on the ends of chromosomes are critical for maintaining genetic integrity and promoting healthy aging.

Oct 31, 2023

FSS #11 Biotech, Neurotech and AI: Opportunities and Risks

Posted by in categories: biotech/medical, life extension, nanotechnology, neuroscience, policy, robotics/AI

The convergence of Biotechnology, Neurotechnology, and Artificial Intelligence has major implications for the future of humanity. This talk explores the long-term opportunities inherent to these fields by surveying emerging breakthroughs and their potential applications. Whether we can enjoy the benefits of these technologies depends on us: Can we overcome the institutional challenges that are slowing down progress without exacerbating civilizational risks that come along with powerful technological progress?

About the speaker: Allison Duettmann is the president and CEO of Foresight Institute. She directs the Intelligent Cooperation, Molecular Machines, Biotech & Health Extension, Neurotech, and Space Programs, Fellowships, Prizes, and Tech Trees, and shares this work with the public. She founded Existentialhope.com, co-edited Superintelligence: Coordination & Strategy, co-authored Gaming the Future, and co-initiated The Longevity Prize. She advises companies and projects, such as Cosmica, and The Roots of Progress Fellowship, and is on the Executive Committee of the Biomarker Consortium. She holds an MS in Philosophy & Public Policy from the London School of Economics, focusing on AI Safety.

Oct 31, 2023

Greener neighborhoods stop us from aging on a genetic level

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

A new study is finding that greener neighborhoods protect telomeres which prevent aging on a genetic level.

The role of telomeres in aging

Telomeres are repetitive sequences of DNA found at the ends of chromosomes that play a crucial role in preserving the integrity and stability of the genetic material within a cell.

Continue reading “Greener neighborhoods stop us from aging on a genetic level” »

Oct 30, 2023

How a single synapse transmits both visual and subconscious information to the brain of fruit flies

Posted by in categories: biological, life extension, neuroscience

Research led by Peking University, China, has discovered a single type of retinal photoreceptor cell in Drosophila (fruit fly) is involved in both visual perception and circadian photoentrainment by co-releasing histamine and acetylcholine at the first visual synapse.

In a paper, “A single photoreceptor splits perception and entrainment by cotransmission,” published in Nature, the team details the discovery that the Drosophila visual system segregates and circadian photoentrainment by co-transmitting two neurotransmitters, histamine and acetylcholine, in the R8 cells.

Light detection involves capturing signals through photoreceptors in the eye, which are essential for image formation and subconscious visual functions, such as regulating biological rhythms according to the daily light-dark cycle (photoentrainment of the ). The optical system has distinct pathways for image formation (based on local contrast) and non-image-related tasks (based on global irradiance).

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