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Archive for the ‘bioengineering’ category: Page 80

Jul 6, 2021

China’s space station recycles 66 liters of urine in 3 weeks to support crew

Posted by in categories: bioengineering, space

As the Shenzhou-12 crew of three taikonauts has lived for nearly three weeks in China’s Tianhe space station core module, the urine treatment system in the module has recycled 66 liters of urine and treated it into distilled water to support the crew, the Global Times learned from the system designers on Tuesday.

This urine treatment system — a sub-system of the life support system — was devised by Chinese scientists with the 206 Research Institute of the Second Academy of the China Aerospace Science and Industry Corp (CASIC). The developers told the Global Times that this is the nation’s first engineering application of the system, and its good performance shows how China’s space station construction work has advanced.

All indicators of the distilled water have reached the standards for usage, and the mission planners have unanimously recognized this outstanding performance, the institute said in a statement it sent to the Global Times.

Jul 2, 2021

Translating Blood Plasma Dilution To Humans | Drs. Irina & Mike Conboy Interrview Series Ep3

Posted by in categories: bioengineering, biotech/medical, life extension, media & arts

The Gist: They think they can start wider human trials soon which would last 2 years then have a product in 3 to 4 years.


In this video, Drs Irina and Mike Conboy talk how TPE, therapeutic plasma exchange is already available as an FDA approved procedure and the plans to extend the usage to include more age related diseases. We also discuss the company that they have formed IMU

Continue reading “Translating Blood Plasma Dilution To Humans | Drs. Irina & Mike Conboy Interrview Series Ep3” »

Jun 29, 2021

Blood Plasma Dilution w/Saline-Albumin | Drs. Irina & Mike Conboy Interview Series Ep 2

Posted by in categories: bioengineering, biotech/medical, life extension, media & arts

In this video, Drs Irina and Mike Conboy talk about the procedure of Neutral Blood Exchange. How it is done and how much blood of the blood is exchanged.

Our guests today are Drs. Irina and Michael Conboy of the Department of Bioengineering at the University of California Berkeley. their discovery of the rejuvenating effects of young blood through parabiosis in a seminal paper published in Nature in 2005 paved the way for a thriving field of rejuvenation biology. The Conboy lab currently focuses on broad rejuvenation of tissue maintenance and repair, stem cell niche engineering, elucidating the mechanisms underlying muscle stem cell aging, directed organogenesis, and making CRISPR a therapeutic reality.

Continue reading “Blood Plasma Dilution w/Saline-Albumin | Drs. Irina & Mike Conboy Interview Series Ep 2” »

Jun 28, 2021

Harvard Scientists Pinpoint ‘Ground Zero’ of Aging in Mouse Embryo Study

Posted by in categories: bioengineering, life extension

In 2016, researchers at the Salk Institute showed that activating certain genes associated with embryonic development could “reprogram” the age of cells and boost the age of mice. Last year, they even managed to use the process to restore vision in old mice.

But the natural “reprogramming” described in the new Harvard study is unlikely to be exactly the same and may be far more comprehensive as it resets cellular age to ground zero, rather than simply reversing it by a few years.

Now that they know when this process happens, the researchers hope they can discover what the actual mechanism is, how similar it is to artificial cellular programming, and whether it can be induced in normal adult cells to rejuvenate them. That’s likely to be a long road, but could eventually lead to major breakthroughs in longevity science.

Jun 26, 2021

CRISPR gene editing breakthrough could treat many more diseases

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

CRISPR gene editing already promises to fight diseases that were once thought unassailable, but techniques so far have required injecting the tools directly into affected cells. That’s not very practical for some conditions. However, there’s just been a breakthrough. NPR reports that researchers have published results showing that you can inject CRISPR-Cas9 into the bloodstream to make edits, opening the door to the use of gene editing for treating many common diseases.

The experimental treatment tackled a rare genetic disease, transthyretin amyloidosis. Scientists injected volunteers with CRISPR-loaded nanoparticles that were absorbed by the patients’ livers, editing a gene in the organ to disable production of a harmful protein. Levels of that protein plunged within weeks of the injection, saving patients from an illness that can rapidly destroy nerves and other tissues in their bodies.

The test involved just six people, and the research team still has to conduct long-term studies to check for possible negative effects. If this method proves viable on a large scale, though, it could be used to treat illnesses where existing CRISPR techniques aren’t practical, ranging from Alzheimer’s to heart disease.

Jun 25, 2021

DNAzymes could outperform protein enzymes for genetic engineering

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

Move over, gene-editing proteins—there’s a smaller, cheaper, more specific genetic engineering tool on the block: DNAzymes—small DNA molecules that can function like protein enzymes.

Researchers at the University of Illinois Urbana-Champaign have developed a technique that, for the first time, allows DNAzymes to target and cut double-stranded DNA, overcoming a significant limitation of the technology. DNAzymes have been used in biosensing, DNA computing and many other applications. However, when it comes to genetic engineering applications such as gene editing or , they have faced a challenge: DNAzymes have only been able to target sites on single-stranded DNA, while the DNA coding for genes in cells is double-stranded. The researchers published their new technique in the Journal of the American Chemical Society.

“DNAzymes have many advantages, including higher stability, smaller size and lower cost than protein enzymes. These advantages perfectly fit the requirement for genetic engineering tools,” said study leader Yi Lu, a professor of chemistry at Illinois. “No DNAzymes could alter double-stranded DNA until this work. By making that happen, we open the door for DNAzymes to enter the entire world of genetic engineering.”

Jun 25, 2021

Are we ready? Advances in CRISPR means the era of germline gene editing has arrived

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

Quick, accurate and easy-to-use, CRISPR-Cas9 has made genomic editing more efficient—but at the same time has made human germline editing much more feasible, erasing many of the ethical barriers erected to prevent scientists from editing the genes of heredity.

“The ethical debate about what is now called human gene editing has gone on for more than 50 years,” writes Dr. John H. Evans, co-director of the Institute for Practical Ethics at the University of California, San Diego. “For nearly that entire time, there has been consensus that a moral divide exists between somatic and human germline editing.”

In an essay published in the Proceedings of the National Academy of Sciences (PNAS), Evans contends that many of the potent bioethical arguments that once made germline editing a verboten concept, have begun to dissolve in the era of CRISPR.

Jun 25, 2021

Groundbreaking ‘superhero’ vaccine based on Olympic athlete DNA could transform society

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

STANFORD, Calif. — A groundbreaking “superhero” vaccine inspired by the DNA code of Olympic athletes could help transform society over the next decade, a top genetic scientist claims.

The vaccine would provide lifelong protection against three of the top ten leading causes of death, according to Euan Ashley, professor of medicine and genetics at Stanford University. The so-called “superhero” jab could offer simultaneous, long-term protection against heart disease, stroke, Alzheimer’s disease, and liver disease, thanks to advances in genetic engineering.

This breakthrough treatment would deliver the blueprint of “ideal” cells from men and women whose genes are more disease-resistant than those of the average person, together with an “instruction manual” to help the body “repair, tweak and improve” its own versions. A single dose could lead to a “body-wide genetic upgrade” that would cut the risk of premature death in some adults by as much as 50 percent.

Jun 25, 2021

No lab required: New technology can diagnose infections in minutes

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

I am waiting for tricorders.


The idea of visiting the doctor’s office with symptoms of an illness and leaving with a scientifically confirmed diagnosis is much closer to reality because of new technology developed by researchers at McMaster University.

Engineering, biochemistry and medical researchers from across campus have combined their skills to create a hand-held rapid test for bacterial infections that can produce accurate, reliable results in less than an hour, eliminating the need to send samples to a lab.

Continue reading “No lab required: New technology can diagnose infections in minutes” »

Jun 24, 2021

Researcher introduces new CRISPR 3.0 system for highly efficient gene activation in plants

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

In a study in Nature Plants, Yiping Qi, associate professor of Plant Science at the University of Maryland (UMD), introduces a new and improved CRISPR 3.0 system in plants, focusing on gene activation instead of traditional gene editing. This third generation CRISPR system focuses on multiplexed gene activation, meaning that it can boost the function of multiple genes simultaneously. According to the researchers, this system boasts four to six times the activation capacity of current state-of-the-art CRISPR technology, demonstrating high accuracy and efficiency in up to seven genes at once. While CRISPR is more often known for its gene editing capabilities that can knock out genes that are undesirable, activating genes to gain functionality is essential to creating better plants and crops for the future.

“While my lab has produced systems for simultaneous gene editing [multiplexed editing] before, editing is mostly about generating loss of function to improve the crop,” explains Qi. “But if you think about it, that strategy is finite, because there aren’t endless genes that you can turn off and actually still gain something valuable. Logically, it is a very limited way to engineer and breed better traits, whereas the plant may have already evolved to have different pathways, defense mechanisms, and traits that just need a boost. Through activation, you can really uplift pathways or enhance existing capacity, even achieve a novel function. Instead of shutting things down, you can take advantage of the functionality already there in the genome and enhance what you know is useful.”

In his new paper, Qi and his team validated the CRISPR 3.0 system in rice, tomatoes, and Arabidopsis (the most popular model plant species, commonly known as rockcress). The team showed that it is possible to simultaneously activate many kinds of genes, including faster flowering to speed up the breeding process. But this is just one of the many advantages of multiplexed activation, says Qi.

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