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Archive for the ‘biotech/medical’ category: Page 541

Oct 17, 2022

Quantum effects help make DNA unstable

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

Quantum effects play a hitherto unexpected role in creating instabilities in DNA – the so-called “molecule of life” that provides instructions for cellular processes in all living organisms. This conclusion, based on work by researchers at the University of Surrey in the UK, goes against long-held beliefs that quantum behaviour is not relevant in the wet, warm environment of cells, and could have far-reaching consequences for models of genetic mutation.

The two strands of the DNA double helix are linked together by hydrogen bonds between the DNA bases. There are typically four different bases, called Guanine (G), Cytosine ©, Adenine (A) and Thymine (T). In the standard configuration, A always bonds to T while C always bonds to G. However, if the protons (nuclei of the hydrogen atoms) that make up the bonds hop from one strand of DNA to the other then a genetic mutation can occur.

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Oct 17, 2022

Giving Baby Mice This Drug Makes Them Live 10 Percent Longer

Posted by in categories: biotech/medical, life extension

O.o!!!!


Per a new study, administering the drug rapamycin to mice everyday for the first 45 days of their lives % extends life expectancy by an average 10 percent.

Oct 17, 2022

Researchers explore single-cell sequencing technologies to understand molecular mechanisms of autoimmune diseases

Posted by in category: biotech/medical

A recent review published in the Journal of Autoimmunity discussed the applications of single-cell ribonucleic acid sequencing (scRNA-seq) in understanding autoimmune disorders.

The review comprehensively covered the principles, procedures, and sequencing platforms used in scRNA-seq, and explored its use in understanding the mechanisms of nine systemic and 32 organ-specific autoimmune and autoinflammatory diseases.

Autoimmune diseases (AID) are a complex phenomenon involving various types of cells. The diseases occur when the body’s immune system fails to recognize its cells and components and launches an immune response against them. Autoimmune diseases are broadly divided into organ-specific and non-organ-specific AID.

Oct 17, 2022

Michael Levin: Intelligence Beyond the Brain

Posted by in categories: bioengineering, biotech/medical, chemistry, ethics, genetics, robotics/AI

*Intelligence Beyond the Brain: morphogenesis as an example of the scaling of basal cognition*

*Description:*
Each of us takes the remarkable journey from physics to mind: we start life as a quiescent oocyte (collection of chemical reactions) and slowly change and acquire an advanced, centralized mind. How does unified complex cognition emerge from the collective intelligence of cells? In this talk, I will use morphogenesis to illustrate how evolution scales cognition across problem spaces. Embryos and regenerating organs produce very complex, robust anatomical structures and stop growth and remodeling when those structures are complete. One of the most remarkable things about morphogenesis is that it is not simply a feed-forward emergent process, but one that has massive plasticity: even when disrupted by manipulations such as damage or changing the sizes of cells, the system often manages to achieve its morphogenetic goal. How do cell collectives know what to build and when to stop? Constructing and repairing anatomies in novel circumstances is a remarkable example of the collective intelligence of a biological swarm. I propose that a multi-scale competency architecture is how evolution exploits physics to achieve robust machines that solve novel problems. I will describe what is known about developmental bioelectricity — a precursor to neurobiology which is used for cognitive binding in biological collectives, that scales their intelligence and the size of the goals they can pursue. I will also discuss the cognitive light cone model, and conclude with examples of synthetic living machines — a new biorobotics platform that uses some of these ideas to build novel primitive intelligences. I will end by speculating about ethics, engineering, and life in a future that integrates deeply across biological and synthetic agents.

Oct 17, 2022

The Switch to Regenerative Medicine

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

As the 3rd presenter during the morning session of the American Society for Dermatologic Surgery Meeting, “Emerging Concepts,” Saranya Wyles, MD, PhD, assistant professor of dermatology, pharmacology, and regenerative medicine in the department of dermatology at the Mayo Clinic in Rochester, Minnesota, explored the hallmarks of skin aging, the root cause of aging and why it occurs, and regenerative medicine. Wyles first began with an explanation of how health care is evolving. In 21st-century health care, there has been a shift in how medical professionals think about medicine. Traditionally, the first approach was to fight diseases, such as cancer, inflammatory conditions, or autoimmune disorders. Now, the thought process is changing to a root cause approach with a curative option and how to rebuild health. Considering how to overcome the sequence of the different medications and treatments given to patients is rooted in regenerative medicine principles.

For skin aging, there is a molecular ‘clock’ that bodies follow. Within the clock are periods of genomic instability, telomere attrition, and epigenetic alterations, and Wyles’ lab focuses on cellular senescence.

“We’ve heard a lot at this conference about bio stimulators, aesthetics, and how we can stimulate our internal mechanisms of regeneration. Now, the opposite force of regeneration is the inhibitory aging hallmarks which include cellular senescence. So, what is cell senescence? This is a state that the cell goes into, similar to apoptosis or proliferation, where the cell goes into a cell cycle arrest so instead of dividing apoptosis, leading to cell death, the cell stays in this zombie state,” said Wyles.

Oct 17, 2022

Ultra-precise quantum thermometer to measure temperatures of space and time

Posted by in categories: biotech/medical, quantum physics

Oct 17, 2022

Cancer vaccine could be ready for use by 2030, say BioNTech founders

Posted by in category: biotech/medical

Lessons from COVID vaccine development and approval can aid the process.

According to Uğur Şahin and Özlem Türeci, the founders of the German company BioNTech, mRNA vaccines that can help target cancer could be ready for use before the end of this decade, The Guardian.


Wildpixel/iStock.

Continue reading “Cancer vaccine could be ready for use by 2030, say BioNTech founders” »

Oct 17, 2022

‘Near-limitless CRISPR therapies’: This drug delivery breakthrough helps gene editing technology infiltrate cells

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

A team of researchers at Northwestern University has devised a new platform for gene editing that could inform the future application of a near-limitless library of CRISPR-based therapeutics.

Using chemical design and synthesis, the team brought together the Nobel-prize winning technology with therapeutic technology born in their own lab to overcome a critical limitation of CRISPR. Specifically, the groundbreaking work provides a system to deliver the cargo required for generating the gene editing machine known as CRISPR-Cas9. The team developed a way to transform the Cas-9 protein into a spherical nucleic acid (SNA) and load it with critical components as required to access a broad range of tissue and cell types, as well as the intracellular compartments required for gene editing.

Oct 17, 2022

These Nootropics May Give Your Brain the Boost It Needs To Function at Max Capacity

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

(Use Promo Code PRODANDNEURO For 15-percent Off Your First Purchase)

This is not a knock on caffeine by any means. There’s a reason people have been consuming it for thousands of years. It works by blocking the neurotransmitters in the brain that produce drowsiness. This keeps your neurons firing at full speed, which makes you feel awake. And studies show it is very effective at boosting mood. But what if you could do more for your brain than simply tricking it into being awake? What if you could give your brain nutrients that help it work better all the time? Well, with a well-designed nootropics supplement, you can.

Nootropics are often marketed as “smart drugs,” which gives the impression that they’re going to boost your IQ and turn you into a rocket scientist or brain surgeon. But that is not actually the case. Nootropics are simply chemical compounds that help create the biological conditions necessary for optimal brain function. They include things like amino acids, vitamins, minerals, nutrients, and even stimulants such as caffeine. Some of these compounds serve as fuel for cognition. Others modulate various processes involved in neurotransmission.

Oct 17, 2022

Astrobiologist: We Should Gene-Hack New Traits Into Mars Settlers

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

Fellow webinar participant Christopher Mason, a geneticist at Weill Cornell Medicine, argued that gene-hacking astronauts could even be a moral imperative.

“And are we maybe ethically bound to do so?” Mason said. “I think if it’s a long enough mission, you might have to do something, assuming it’s safe, which we can’t say yet.”

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