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Archive for the ‘biotech/medical’ category: Page 2311

Oct 18, 2017

Mathematics, rejuvenation, and immortality walk into a bar…

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

I often hear the claim that death is a statistical certainty. This is my mathematical take at why this is not true, assuming the defeat of ageing, and no, being immortal is not required.


If a fully rejuvenated person was hit by a train at full speed, I can promise you they would stand the same pathetically low chances of ever being reassembled into a single, barely functional piece as any non-rejuvenated person of any age. Keeping that in mind, if anyone tried to sell me rejuvenation as ‘immortality’, rest assured I would demand to see the manager right away.

On a different yet unexpectedly related note, if I had a nickel for every time I heard or read something along the lines of ‘death is inevitable because probability’, I could donate so much money to LEAF the IRS would start thinking they’re a bit too well off for a charity.

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Oct 17, 2017

Whenever the topic of increasing human lifespan is discussed the concern is sometimes raised that a longer life would mean a life spent frail and decrepit

Posted by in categories: biotech/medical, life extension

Whenever the topic of increasing human lifespan is discussed the concern is sometimes raised that a longer life would mean a life spent frail and decrepit. This is sometimes known as the Tithonus error and shows a fundamental misunderstanding of the aims of rejuvenation biotechnology. The concern is based on the ancient Greek myth of Tithonus which might be thought of as a cautionary tale warning seekers of an eternal life of its alleged inherent dangers.

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Oct 17, 2017

Hallmarks of Aging: Epigenetic Alterations

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

This is the second part of our ongoing series of articles that discuss the Hallmarks of Aging. Published in 2013, the paper divides aging into a number of distinct categories (“hallmarks”) of damage to explain how the aging process works and how it causes age-related diseases[1].

Today, we will be looking at one of the primary hallmarks, epigenetic alterations.

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Oct 17, 2017

The Epigenome in Cancer and Disease

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

Describes the epigenetic role in aging, cancer and disease as well as drugs that are targeting the epigenome.


Our epigenome plays a role in aging and also in diseases like cancer and diabetes. Scientists have developed epigenome-targeting cancer drugs.

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Oct 16, 2017

Chemical treatment improves quantum dot lasers

Posted by in categories: biotech/medical, nanotechnology, quantum physics

One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research at Los Alamos National Laboratory’s Nanotech Team, the ~nanometer-sized dots are being doctored, or “doped,” with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.

“When we properly tailor the compositional profile within the particles during their fabrication, and then inject two or more electrons in each dot, they become more able to emit . Importantly, they require considerably less power to initiate the lasing action,” said Victor Klimov, leader of the Nanotech team.

In order to force a material to emit light one has to work toward a “population inversion,” that is, making the number of electrons in a higher-energy electronic state exceed the number that are in a lower-energy state. To achieve this condition normally, one applies an external stimulus (optical or electrical) of a certain power, which should exceed a critical value termed the “optical-gain threshold.” In a recent paradigm-changing advance, Los Alamos researchers demonstrated that by adding extra electrons into their specially designed quantum dots, they can reduce this threshold to virtually zero.

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Oct 16, 2017

A Healthy Aged Gut Is Similar to a Healthy Young Gut

Posted by in categories: biotech/medical, life extension

The topic of the gut microbiota is increasingly in the news of late, and its connection with chronic age-related inflammation, known as inflammaging, is becoming increasingly clear.

What is the microbiota?

The microbiota describes the community of symbiotic and pathogenic microorganisms that live in and on all multicellular organisms, and it includes bacteria, archaea, protists, fungi, and viruses. In particular, the gut microbiota and its role in aging and disease have increasingly become of interest to researchers in recent years.

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Oct 16, 2017

When Should We Edit Human Genes? What You Need to Know

Posted by in categories: bioengineering, biotech/medical

There’s a difference between editing genes in a person’s somatic cells and germline cells.

Editing somatic cells, which are differentiated (e.g., skin cells) and non-reproductive, impacts them alone. In contrast, editing germline DNA means changes are passed along to the next generation during reproduction. It’s no minor distinction.

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Oct 16, 2017

Why is it so hard to ditch Apple, Amazon, Google and Facebook?

Posted by in categories: biotech/medical, innovation

In his new book, The Four: The Hidden DNA of Amazon, Apple, Facebook and Google, Galloway, an entrepreneur and professor at NYU Stern, provides a perceptive analysis of the four-horse race to become the first trillion-dollar company. In a casually incisive style, he uncovers how each of these companies have deployed iconic leadership, technology, storytelling, fearless innovation, lightning execution — and blatant plagiarism- to devastating effect.


From 2013 to 2017, the combined market capitalisation of Apple, Amazon, Facebook and Google increased in size by the GDP of Russia – $1.4 trillion. And the power of The Four keeps on growing.

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Oct 16, 2017

Where’d you get those genes? The answer may shock you

Posted by in categories: biotech/medical, genetics, law, military

Military applications of gene-altering technology must also be considered (Op-Ed by Tomasz Pierscionek)


Recent developments in the field of biotechnology have shown that mutations can be edited out of the human genome. What are the future implications of this research and will it be used to the benefit or detriment of society?

Last month, UK scientists performed gene-editing experiments for the first time in order to gain a greater understanding of how embryos develop, and it is likely researchers in other countries will soon follow suit.

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Oct 15, 2017

The First Human to Attempt CRISPR Gene Editing on Their Genome

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

https://youtube.com/watch?v=o6A9bbDI6fo

The first attempt at human CRISPR gene editing did not occur in a hospital or University or in a clinical trial by some $100 million funded company. Instead, it happened in small cramped room in San Francisco in front of 30 or so people who squeezed in to listen to a talk about how biohackers are making genetic and cellular modification accessible.

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