Archive for the ‘dna’ tag
Jun 17, 2018
Harvard Rewinds the Biological Clock of Time
Posted by Nicholi Avery in categories: bioengineering, biological, DNA, health, life extension, science, transhumanism
Investigators at Harvard Medical School have identified the key cellular mechanisms behind vascular aging and its effects on muscle health, and they have successfully reversed the process in animals.
The scientists used a chemical compound that’s an NAD+ booster called NMN which plays a critical role in repairing cellular DNA as well as maintaining cell vitality to test what would happen.
Could reversing the aging of blood vessels hold the key to restoring youthful vitality? If the old adage “you are as old as your arteries” reigns true then the answer is yes, at least in mice.
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Jun 9, 2018
Human Skeletal Muscle Aging and Mutagenesis
Posted by Nicholi Avery in categories: aging, DNA, genetics, health, life extension
Study based upon human skeletal muscle aging, mutagenesis, and the role of #satellite cells.
“A more comprehensive understanding of the interplay of stem cell–intrinsic and extrinsic factors will set the stage for improving cell therapies capable of restoring tissue homeostasis and enhancing muscle repair in the aged.”
Human aging has multiple effects on the human body. One of the effects of human aging is the reduction in skeletal muscle (SkM) function and a reduction in the number and activity of satellite cells (SCs), the resident stem cells. The whole genome of single SC clones of the leg muscle vastus lateralis from healthy individuals of different ages (21–78 years) was analyzed, to study the specific connection between SC aging and muscle impairment. In healthy adult muscle rapid increase of SCs is consistent with the accumulation rate of 13 somatic mutations per genome per year. Mutations typically do not happen in SkM-expressed genes because they are protected. However, as mutations in exons and promoters increase, genes involved in SC activity and muscle function are targeted which results in aging. Exons are coding sections of an RNA transcript, or the DNA encoding it, that are translated into protein. Proteins are the synthesis of molecules. A change in of a single base pair that caused the substitution of a different amino acid in the resulting protein (missense mutation) that was propagated to the muscle and detected in association with SC mutations affecting the whole tissue. #Somatic mutagenesis in SCs as a result is the driving force in the age related decline of SkM function.
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Jan 11, 2018
Playboy — DNA To Find The One — Bioquark Commentary
Posted by Ira S. Pastor in categories: biological, biotech/medical, business, DNA, finance, genetics, health, philosophy, science, sex
Jun 29, 2017
Bioquark Inc. and Lakmus LLC Announce Research Collaboration to Study Novel Biopharmaceuticals for Healthy Longevity Enhancement
Posted by Ira S. Pastor in categories: aging, bioengineering, biotech/medical, disruptive technology, DNA, genetics, health, life extension, posthumanism, science
Philadelphia, PA, USA / Moscow, Russia — Bioquark, Inc., (www.bioquark.com) a life sciences company focused on the development of novel bio-products for regeneration, disease reversion, and healthy aging, and Moscow based, Lakmus LLC, a diversified investment company with business interests in pharmacies, restaurants, and real estate, announced a multi-disciplinary research collaboration with the FSBI Zakusov Institute of Pharmacology, Russian Academy of Medical Sciences (http://www.academpharm.ru/), and the Pavlov Institute of Physiology of the Russian Academy of Sciences (http://www.infran.ru/), to jointly study the pharmacotherapeutic longevity enhancement properties of its combinatorial regenerative biologic candidates.
“We are very excited about this continued collaboration with Lakmus,” said Ira S. Pastor, CEO, Bioquark Inc. “The disciplined development of our combinatorial biologic candidates (Bioquantines) for healthy longevity enhancement, represents another important step in our continued evolution as a company focused on a broad range of therapeutic products and services in the regenerative healthcare space.”
Throughout the 20th century, natural products formed the basis for a majority of all pharmaceuticals, biologics, and consumer healthcare products used by patients around the globe, generating trillions of dollars of wealth. However, many scientists believe we have only touched the surface with what the natural world, and its range of organisms, which from a health and wellness perspective are much further advanced than human beings, has to teach us.
Oct 5, 2012
Want to Get 70 Billion Copies of Your Book In Print? Print It In DNA
Posted by Odd Edges in categories: biological, biotech/medical, chemistry, futurism, information science, media & arts
I have been meaning to read a book coming out soon called Regenesis: How Synthetic Biology Will Reinvent Nature and Ourselves. It’s written by Harvard biologist George Church and science writer Ed Regis. Church is doing stunning work on a number of fronts, from creating synthetic microbes to sequencing human genomes, so I definitely am interested in what he has to say. I don’t know how many other people will be, so I have no idea how well the book will do. But in a tour de force of biochemical publishing, he has created 70 billion copies. Instead of paper and ink, or pdf’s and pixels, he’s used DNA.
Much as pdf’s are built on a digital system of 1s and 0s, DNA is a string of nucleotides, which can be one of four different types. Church and his colleagues turned his whole book–including illustrations–into a 5.27 MB file–which they then translated into a sequence of DNA. They stored the DNA on a chip and then sequenced it to read the text. The book is broken up into little chunks of DNA, each of which has a portion of the book itself as well as an address to indicate where it should go. They recovered the book with only 10 wrong bits out of 5.27 million. Using standard DNA-copying methods, they duplicated the DNA into 70 billion copies.
Scientists have stored little pieces of information in DNA before, but Church’s book is about 1,000 times bigger. I doubt anyone would buy a DNA edition of Regenesis on Amazon, since they’d need some expensive equipment and a lot of time to translate it into a format our brains can comprehend. But the costs are crashing, and DNA is a far more stable medium than that hard drive on your desk that you’re waiting to die. In fact, Regenesis could endure for centuries in its genetic form. Perhaps librarians of the future will need to get a degree in biology…
