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Archive for the ‘biotech/medical’ category: Page 1570

Jun 16, 2020

Here’s what potential Mars colonists really need from Earth: A large gene pool

Posted by in categories: biotech/medical, Elon Musk, existential risks, food, genetics

Sending a handful of people certainly could serve as a proof of concept analogous to America’s Spanish and Portuguese outposts in the early 1500’s, or the English and Dutch settlements in the early 1600’s. In these instances the populations measured in the dozens and would not have amounted to a lasting European presence had they not been followed by thousands of new settlers over the next few decades. But, given our more advanced technology, our level of medicine, the idea that humans could have equipment that will utilize the Martian environment to produce food, air, and other consumables, and the certainty that settlers will not be at war with the Martian equivalent of the Aztecs or Incas—couldn’t a Martian settlement survive long term with just a low number of colonists?

The answer is no—not if the goal is a permanent human presence. Not if the goal is to provide our species with some kind of extinction insurance against planetary disaster on Earth, such as a mega-volcanic eruption, nuclear war, or some other existential threat. Mars setters can use technology to get air and food from the Mars environment, but early European explorers in the New World had access to one natural resource that mid-21st century Mars colonists will not be able to manufacture: a human gene pool.

If we really want Martian colonies, we can’t send just a few Adams and Eves. We can’t set-up a Martian Jamestown of 100 people. Long-term survival will depend on the genetic diversity of a large gene pool, and this means the Elon Musk plan of sending thousands might be the only colonization plan that could work.

Jun 16, 2020

Small Business Live

Posted by in categories: biotech/medical, business

There’s nothing small about the impact small businesses have on local communities. They turn towns into hometowns and strangers into neighbors.

And right now, they need our support.

Continue reading “Small Business Live” »

Jun 16, 2020

Coronavirus: Dexamethasone proves first life-saving drug

Posted by in categories: biotech/medical, innovation

UK experts say the low-dose steroid treatment is a major breakthrough in the fight against the deadly virus.

It cut the risk of death by a third for patients on ventilators. For those on oxygen, it cut deaths by a fifth.

The drug is part of the world’s biggest trial testing existing treatments to see if they also work for coronavirus.

Continue reading “Coronavirus: Dexamethasone proves first life-saving drug” »

Jun 15, 2020

Diluting blood plasma rejuvenates tissue, reverses aging in mice

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

In 2005, University of California, Berkeley, researchers made the surprising discovery that making conjoined twins out of young and old mice—such that they share blood and organs—can rejuvenate tissues and reverse the signs of aging in the old mice. The finding sparked a flurry of research into whether a youngster’s blood might contain special proteins or molecules that could serve as a “fountain of youth” for mice and humans alike.

But a new study by the same team shows that similar age-reversing effects can be achieved by simply diluting the of old mice—no needed.

In the study, the team found that replacing half of the blood plasma of old mice with a mixture of saline and albumin—where the albumin simply replaces that was lost when the original blood plasma was removed—has the same or stronger rejuvenation effects on the brain, liver and muscle than pairing with young mice or young blood exchange. Performing the same procedure on had no detrimental effects on their health.

Jun 15, 2020

Don’t Conceal Your Age. Instead, Slow Aging at the Cellular Level

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

Why does this happen?

To put things as simply as possible, the root cause of all aging is a loss of energy on the cellular level, and there are basically two major theories for why this occurs. One says cellular energy decline is the result of accumulated cellular and mitochondrial damage. In other words, it’s the result of wear and tear on a cellular level. The other theory speculates that it is the result of genetic programming, with some genes getting overexpressed while others get underexpressed as we age.

These two theories of cellular energy decline aren’t in competition with one another. They just look at the problem from two different vantage points. The reality is these “causes” are interrelated. Gene overexpression and underexpression can cause cellular damage. Cellular damage can impair gene expressions.

Jun 15, 2020

The Pandemic Claims New Victims: Prestigious Medical Journals

Posted by in category: biotech/medical

I remember I looked over a study from the Lancet. I questioned it. I have also read other studies, and I have questioned them. At least I know my questioning was within reason now. People can not spike studies and expect to get away with it, as the truth always comes out in the end.


Two major study retractions in one month have left researchers wondering if the peer review process is broken.

Jun 15, 2020

Moderna aims to make 1 b. coronavirus vaccine doses per year

Posted by in category: biotech/medical

If there are only enough vaccines for a fraction of the world who will get them first?

Jun 15, 2020

Clone a voice using just a 5 second sample with the help of AI

Posted by in categories: biotech/medical, robotics/AI

This post is about some fairly recent improvements in the field of AI-based voice cloning. If we have hours and hours of footage of a particular voice at our disposal then that voice can be cloned using existing methods. But this recent breakthrough enables us to do the same using…

Jun 14, 2020

Three people with inherited diseases successfully treated with CRISPR

Posted by in categories: biotech/medical, genetics

Two people with beta thalassaemia and one with sickle cell disease no longer require blood transfusions, which are normally used to treat severe forms of these inherited diseases, after their bone marrow stem cells were gene-edited with CRISPR.

Result of the ongoing trial, which is the first to use CRISPR to treat inherited genetic disorders, were announced today at a virtual meeting of the European Hematology Association.

Jun 14, 2020

Can old vaccines from science’s medicine cabinet ward off coronavirus?

Posted by in categories: biotech/medical, science

This is really old news:

Two tried-and-true vaccines — a century-old inoculation against tuberculosis and a decades-old polio vaccine once given as a sugar cube — are being evaluated to see if they can offer limited protection against the coronavirus.


The old vaccines are oddities among the cutting-edge and targeted technologies being developed to combat the novel coronavirus. New vaccines aim to teach the body’s immune system to recognize and destroy the coronavirus, but scientists are only now beginning to test them in people. Vaccines developed against TB and polio have already been used in millions of people and could offer a low-risk way to rev up the body’s first line of defense — the innate immune system — against a broad array of pathogens, including the coronavirus.

Continue reading “Can old vaccines from science’s medicine cabinet ward off coronavirus?” »