Menu

Blog

Page 5576

Jun 5, 2021

The difficult birth of stem cell therapy

Posted by in categories: biotech/medical, ethics

Scientists have been aware of the existence of stem cells since the 1900’s, but it wasn’t until the turn of the millennium that the medical community (and in turn the public) sat up and took notice of their potential. Unfortunately, the first public debut of stem cell therapy in the eyes of the public was through the political and moral minefield of deriving stem cell lines from human embryos. It was long before religious and secular objections lead to President Bush Banning any Federal funding for studies utilising newly created stem cell lines. The public opinion of stem cells was extremely polarised, with the public split heavily down the middle, between support and condemnation. What happened next was unfortunately as predictable as the tide coming in.

To compensate for the pushback against stem cell research, more and more extravagant claims were made in support of stem cells. Although most of these claims were based upon perfectly reasonable extrapolation from what was known of the potential for stem cells, the time frame in which these advances could be made was wildly underestimated. Confounding that problem was the fact that it would be many years until a method through which stem cells could be reverse engineered from a patient’s tissue, which meant that medical treatments had to based around stem cell lines derived from embryonic stem cell lines, which as discusses previously was an ethical nightmare, as well as being logically untenable for the majority of people (as most people don’t have embryonic tissue samples stored away for future use). Great promises were made to the public, without a full understanding of what was needed in order to get stem cell therapy to a functional level.

Jun 5, 2021

Gigadalton-scale DNA origami nanostructures explained

Posted by in categories: bioengineering, biotech/medical, computing, education, nanotechnology, neuroscience

Check out this short educational video in which I explain some super exciting research in the area of nanotechnology: gigadalton-scale DNA origami! I specifically discuss a journal article by Wagenbauer et al. titled “Gigadalton-scale shape-programmable DNA assemblies”.


Here, I explain an exciting nanotechnology paper “Gigadalton-scale shape-programmable DNA assemblies” (https://doi.org/10.1038/nature24651).

Continue reading “Gigadalton-scale DNA origami nanostructures explained” »

Jun 5, 2021

A woman with HIV had the coronavirus for 216 days. The virus mutated at least 30 times inside her

Posted by in category: biotech/medical

Jun 5, 2021

Astronomers calculate genesis of Oort cloud in chronological order

Posted by in categories: physics, space

A team of Leiden astronomers has managed to calculate the first 100 million years of the history of the Oort cloud in its entirety. Until now, only parts of the history had been studied separately. The cloud, with roughly 100 billion comet-like objects, forms an enormous shell at the edge of our solar system. The astronomers will soon publish their comprehensive simulation and its consequences in the journal Astronomy & Astrophysics.

The Oort cloud was discovered in 1950 by the Dutch Jan Hendrik Oort to explain why there continue to be new comets with elongated orbits in our solar system. The cloud, which starts at more than 3000 times the distance between the Earth and the Sun, should not be confused with the Kuiper belt. This is the rim of rock, grains and ice in which the dwarf planet Pluto is located and which orbits relatively close to the Sun at about 30 to 50 times the Earth-Sun distance.

Jun 5, 2021

ADHD Drugs Can Affect Later Generations

Posted by in categories: biotech/medical, futurism

“Because of this male-specific effect, we investigated the effects of MPH through the paternal line and observed the same behaviors in several generations of their descendants not directly administered the drug.”


Summary: A new study of male guppies reveals behaviors affected by methylphenidate hydrochloride (MPH), an active ingredient in common ADHD medications, can be passed along to future generations.

Source: University of Toronto

Continue reading “ADHD Drugs Can Affect Later Generations” »

Jun 5, 2021

Egypt’s 3,400-Year-Old ‘Lost Golden City’ Discovered

Posted by in category: futurism

An ancient capital, lost under the sand for more than 3400 years, may hold the answer to one of Egyptian history’s greatest mysteries.

Jun 5, 2021

Two Halves of the Hippocampus Have Different Gene Activity

Posted by in categories: biotech/medical, neuroscience

Summary: Researchers have identified significant differences in gene activity between the anterior and posterior areas of the hippocampus. Genes associated with depression and other mood disorders are more active in the anterior hippocampus, while genes linked to cognitive disorders, such as ASD, are more active in the posterior hippocampus.

Source: UT Southwestern Medical Center.

A study of gene activity in the brain’s hippocampus, led by UT Southwestern researchers, has identified marked differences between the region’s anterior and posterior portions.

Jun 5, 2021

Inside the 1,300mph jet that will fly you from New York to London in less than four hours

Posted by in category: transportation

“The world’s first purchase agreement for net-zero carbon supersonic aircraft marks a significant step toward our mission to create a more accessible world,” said Boom CEO Blake Scholl in a statement.

The planes, which will fly twice the speed of current passenger jets, are expected to be rolled out in 2025, take flight in 2026, and start carrying passengers in 2029.

Continue reading “Inside the 1,300mph jet that will fly you from New York to London in less than four hours” »

Jun 5, 2021

Why NASA’s return to Venus could help save the Earth

Posted by in categories: futurism, space

The space agency is launching two missions to study Venus’ atmosphere and geological history.


“I did a lot of screaming and jumping up and down,” Grinspoon tells Inverse. “I scared my dog.”

Continue reading “Why NASA’s return to Venus could help save the Earth” »

Jun 5, 2021

A catalyst that destroys perchlorate in water could clean Martian soil

Posted by in categories: biotech/medical, chemistry, robotics/AI, space travel

## JOURNAL OF THE AMERICAN CHEMICAL SOCIETY • JUN 4, 2021.

# *A lovely single step bio-inspired process with some interesting complex benefits particularly for humans on Mars.*

*by holly ober, university of california — riverside*

Continue reading “A catalyst that destroys perchlorate in water could clean Martian soil” »