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Archive for the ‘genetics’ category: Page 489

Jan 30, 2016

Genetic engineering could thwart the Zika virus, among other mosquito-borne diseases

Posted by in categories: bioengineering, biotech/medical, genetics, habitats, health, transportation

With the recent use of genetically engineered mosquitoes in Brazil to halt the spread of the Zika virus, we might be beginning to see some major health improvements as a consequence of the genetics revolution. A world in which mosquitoes were all but eliminated from the ecosystem would look quite different from the world of today, especially for people living in the tropics where the threat of mosquito transmitted infections does more than just mar an otherwise tranquil margarita sipped from the veranda of a beach resort. This is not to beggar the more mundane advantages of a mosquito-free habitat, but rather call attention to the fact that for large parts of the world, including Brazil, mosquitoes can be the difference between life and death.

Ironically, the genetic changes made to the Aedes aegypti mosquito in order to halt the spread of the Zika virus are deceptively simple. The company behind the project, Oxitec, used a modified version of something called the “Sterile Insect Technique” to create their hybrid specimens. The end goal of this process is to produce a male mosquito possessing a “self-limiting gene.” When these males mate with wild female mosquitoes, they create non viable offspring that perish soon after the birth. The end result is a rapid drop in the mosquito population of a given area.

When compared with some of the more hazardous forms of mosquito control currently in use such as massive spraying of DEET and chemical infusers popular throughout Asia, sterilizing mosquitoes sounds like an imminently reasonable approach. As a journalist who once saw his roadside samosa blasted by a massive spray of DEET from an oncoming municipal vehicle in India, I can personally attest to a preference for a genetic solution.

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Jan 30, 2016

Discovered: How to unlock inaccessible genes

Posted by in category: genetics

An international team of biologists has discovered how specialized enzymes remodel the extremely condensed genetic material in the nucleus of cells in order to control which genes can be used. The discovery will be published in the print edition of the journal Nature on Feb. 4, 2016.

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Jan 29, 2016

Biotechnology, synthetic biology keys to humans colonizing other planets

Posted by in categories: alien life, biotech/medical, food, genetics, particle physics, space travel, sustainability

Over the last 12,000 years or so, human civilization has noticeably reshaped the Earth’s surface. But changes on our own planet will likely pale in comparison when humans settle on other celestial bodies. While many of the changes on Earth over the centuries have been related to food production, by way of agriculture, changes on other worlds will result, not only from the need for on-site production of food, but also for all other consumables, including air.

As vital as synthetic biology will be to the early piloted missions to Mars and voyages of exploration, it will become indispensable to establish a long-term human presence off-Earth, namely colonization. That’s because we’ve evolved over billions of years to thrive specifically in the environments provides by our home planet.

Our physiology is well-suited to Earth’s gravity and its oxygen-rich atmosphere. We also depend on Earth’s magnetic field to shield us from intense space radiation in the form of charged particles. In comparison, Mars currently has no magnetic field to trap particle radiation and an atmosphere that is so thin that any shielding against other types of space radiation is negligible compared with the protection that Earth’s atmosphere affords. At the Martian surface, atmospheric pressure never gets above 7 millibars. That’s like Earth at an altitude of about 27,000 m (89,000 ft), which is almost the edge of space. And it’s not like the moon is a better option for us since it has no atmosphere at all.

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Jan 28, 2016

Scientists use big data to discover a genetic cause for schizophrenia

Posted by in category: genetics

It’s not a smoking gun. But in this week’s Nature, there’s a study that strongly links schizophrenia with a double-agent gene involved in the immune system.

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Jan 24, 2016

A tiny device inside of mice sends light to nerves

Posted by in categories: energy, genetics, neuroscience

Interesting


Scientists have implanted a wireless device the size of a peppercorn inside mice to stimulate nerves.

The technique combines optogenetics—using light to control the activity of the brain—with a newly developed method for wirelessly powering implanted devices. It’s described in a paper published in Nature Methods.

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Jan 24, 2016

The World Economic Forum On The Future Of Jobs

Posted by in categories: 3D printing, biotech/medical, economics, employment, genetics, nanotechnology, robotics/AI

“According to many industry observers, we are today on the cusp of a Fourth Industrial Revolution. Developments in previously disjointed fields such as artificial intelligence and machine learning, robotics, nanotechnology, 3D printing and genetics and biotechnology are all building on and amplifying one another…”


The World Economic Forum (WEF) published an analysis today on the technological and sociological drivers of employment.

The report, titled The Future of Jobs, validates the accelerating impact of technology on global employment trends, and also highlights serious concerns that job growth in certain industries is still very much outpaced by large scale declines in other industries.

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Jan 24, 2016

Good Start Genetics, Helix partnership could bring affordable genetic tests to parents-to-be

Posted by in categories: biotech/medical, genetics

People with a family history of some inheritable diseases like cystic fibrosis can now be tested to see if they carry the genes for the condition. If neither parent has the disease, but both carry the corresponding gene or genes, the odds of having a child with the condition are higher.


Cambridge diagnostics company Good Start Genetics has partnered with Helix, a startup in California, to bring its genetic tests to a bigger market.

People with a family history of some inheritable diseases like cystic fibrosis can now be tested to see if they carry the genes for the condition. If neither parent has the disease, but both carry the corresponding gene or genes, the odds of having a child with the condition are higher.

Continue reading “Good Start Genetics, Helix partnership could bring affordable genetic tests to parents-to-be” »

Jan 23, 2016

New Algorithm May Someday Enable Scientists to Regrow Limbs and Replace Damaged Organs

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

A new algorithm has been developed that will drastically reduce the time and effort needed to create induced pluripotent stem cells (iPSCs). As a result of this breakthrough, we can expect a dramatic revolution in regenerative medicine in the near future.

What if you could directly reprogram cells to develop into whatever you wished? What if you could take an undifferentiated, incipient cell, full of the unrealized potential to become any one of the many specialized cells in the human body, and nudge it into becoming ocular tissue, or neural cells, even a new heart to replace an old or damaged one?

This is the promise afforded by Mogrify, the result of the application of computational and mathematical science to the problems of medicine and biology. It was developed by an international collaboration of researchers from the Duke-NUS Medical School in Singapore, the University of Bristol in the United Kingdom, Monash University in Australia, and RIKEN in Japan. The new research was published online in the journal Nature Genetics.

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Jan 21, 2016

Elites pouring billions into gene-therapy research

Posted by in categories: business, evolution, genetics, health, life extension, singularity

The real opportunities of our future is when we truly integrate technology and genetics/ healthcare together to the point that technology benefits from learning and evolving from what we do in genetics/ healthcare; and genetics/ healthcare truly evolve through technology discoveries and evolution. Does this sound like singularity? Yes; however, this is when we truly see some amazing advancements in both fields. And, several investors (even in Silicon Valley) are investing in technology that is positioned to focus on evolving technology through healthcare.


Scientists have been quietly working for decades to crack the genetic codes that allow humans to live forever, or at least significantly longer.

And judging by the bits of information on this research that is beginning to leak into the mainstream of human discourse, the idea may no longer be far-fetched.

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Jan 21, 2016

CRISPR/Cas9 Genome Editing Is a Huge Deal, But It’s Just the Tip of the Iceberg

Posted by in categories: biotech/medical, genetics

CRISPR/Cas9 has been touted as an almost magical technology in the news—and rightly so. The technique allows scientists to alter the DNA of living cells and, it’s hoped, achieve a longstanding goal of science to treat disease at the genetic level.

That’s a really big deal.

Continue reading “CRISPR/Cas9 Genome Editing Is a Huge Deal, But It’s Just the Tip of the Iceberg” »