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Archive for the ‘biotech/medical’ category: Page 638

Apr 22, 2023

New injectable cell therapy could resolve osteoarthritis

Posted by in categories: biotech/medical, life extension

Wake Forest Institute for Regenerative Medicine (WFIRM) scientists have created a promising injectable cell therapy to treat osteoarthritis that both reduces inflammation and also regenerates articular cartilage.

Recently identified by the Food and Drug Administration as a public health crisis, osteoarthritis affects more than 520 million people worldwide who deal with pain and . Osteoarthritis is typically induced by mechanical or traumatic stress in the joint, leading to damaged that cannot be repaired naturally.

“Without better understanding of what drives the initiation and progression of osteoarthritis, effective treatment has been limited,” said lead author Johanna Bolander of WFIRM. “Initially, we studied what goes wrong in osteoarthritic joints, compared these processes to functional environments, and used this information to develop an immunotherapy cell treatment.”

Apr 22, 2023

Harvard Scientists Uncover New Strategy for Repairing DNA Damage in Neurons

Posted by in categories: biotech/medical, neuroscience

Researchers discover a mechanism used by neurons to repair damage that occurs during neuronal activity.

Apr 22, 2023

Researchers recommend clinical trials for CBD to prevent COVID-19 based on promising animal data

Posted by in category: biotech/medical

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A new study shows that an FDA-approved, pharmaceutical-grade formulation of CBD has an antiviral effect in human lung cells and mice, and shows a significant negative association with COVID infection in human patients.

Apr 22, 2023

Exposing the Strange Blueprint Behind “Reality” (Donald Hoffman Interview)

Posted by in categories: biotech/medical, evolution, mathematics, neuroscience, quantum physics

Donald Hoffman interview on spacetime, consciousness, and how biological fitness conceals reality. We discuss Nima Arkani-Hamed’s Amplituhedron, decorated permutations, evolution, and the unlimited intelligence.

The Amplituhedron is a static, monolithic, geometric object with many dimensions. Its volume codes for amplitudes of particle interactions & its structure codes for locality and unitarity. Decorated permutations are the deepest core from which the Amplituhedron gets its structure. There are no dynamics, they are monoliths as in 2001: A Space Odyssey.

Continue reading “Exposing the Strange Blueprint Behind ‘Reality’ (Donald Hoffman Interview)” »

Apr 21, 2023

Scientists discover how X chromosome gets its shape, solving one of life’s greatest mysteries

Posted by in categories: biotech/medical, genetics

Scientists in Britain have finally solved one of the greatest mysteries of life: how chromosomes get their X shape. Chromosomes, discovered in the late 1800s, are DNA molecules which contain the genetic material of an organism.

All chromosomes, without exception, either go through or end up with an X shape before the cells of an organism divide.

But it was always a mystery how they are X-shaped. While Biology students across the world study that chromosomes get their shape during cell division, the exact reason behind their X shape was not known.

Apr 21, 2023

The Next Generation of Drugs Will Be Enhanced by Machine Learning

Posted by in categories: biotech/medical, health, robotics/AI

Experts from Charles River and Valo Health describe how artificial intelligence will change the drug discovery landscape.

Apr 21, 2023

Novel nanocages for delivery of small interfering RNAs

Posted by in category: biotech/medical

Small interfering RNAs (siRNAs) are novel therapeutics that can be used to treat a wide range of diseases. This has led to a growing demand for selective, efficient, and safe ways of delivering siRNA in cells. Now, in a cooperation between the Universities of Amsterdam and Leiden, researchers have developed dedicated molecular nanocages for siRNA delivery. In a paper just out in the journal Chem they present nanocages that are easy to prepare and display tunable siRNA delivery characteristics.

The nanocages were developed in the research group for Homogeneous, Supramolecular and Bio-inspired catalysis of Prof. Joost Reek and Bas de Bruin at the University of Amsterdam’s Van ‘t Hoff Institute for Molecular Sciences, and further studies in the group Prof. Alexander Kros at the Leiden Institute of Chemistry.

The researchers were motivated by the potential of siRNA in , which requires the need for effective delivery systems. They set out to develop nanocages with at the outside, making the cages capable of binding siRNA strands. As the binding is based on reversible bonds, the siRNA can in principle be released in a cellular environment. To explore the delivery characteristics of their nanocages, the researchers performed a laboratory study using various human cancer cells.

Apr 21, 2023

Study shows how tiny plastic particles manage to breach the blood-brain barrier

Posted by in categories: biotech/medical, computing, food, neuroscience

Among the biggest environmental problems of our time, micro-and nanoplastic particles (MNPs) can enter the body in various ways, including through food. And now for the first time, research conducted at MedUni Vienna has shown how these minute particles manage to breach the blood-brain barrier and as a consequence penetrate the brain. The newly discovered mechanism provides the basis for further research to protect humans and the environment.

Published in the journal Nanomaterials, the study was carried out in an with oral administration of MNPs, in this case polystyrene, a widely-used plastic which is also found in . Led by Lukas Kenner (Department of Pathology at MedUni Vienna and Department of Laboratory Animal Pathology at Vetmeduni) and Oldamur Hollóczki (Department of Physical Chemistry, University of Debrecen, Hungary) the research team was able to determine that tiny polystyrene particles could be detected in the brain just two hours after ingestion.

The mechanism that enabled them to breach the was previously unknown to medical science. “With the help of computer models, we discovered that a certain (biomolecular corona) was crucial in enabling plastic particles to pass into the brain,” Oldamur Hollóczki explained.

Apr 21, 2023

What If There Was A Vaccine To Reduce Bad Cholesterol?

Posted by in category: biotech/medical

Could a vaccine for dealing with cholesterol be in the works? If clinical trials succeed, Vaxxinity’s new vaccine could be a game changer for this chronic medical condition.


Millions daily take statins to combat high cholesterol. But a vaccine that turns on the body’s natural immune response is in the works.

Apr 21, 2023

Kaleidoscopic image of a mouse’s brain is 64 million times sharper than a typical MRI

Posted by in categories: biotech/medical, robotics/AI

To improve upon this technology, researchers created a souped-up MRI outfitted with a high-powered 9.4-tesla magnet. (For comparison, most MRIs are equipped with a 1.5-to 3-tesla magnet.) They also added gradient coils that are 100 times stronger than current models and are what create the images, as well as a high-speed computer that is as powerful as approximately 800 laptops, according to the statement.

After scanning the mouse brain, the researchers sent tissue samples to be imaged using a technique called light sheet microscopy, which allowed them to label specific groups of cells in the brain that were then mapped onto the original MRI. These additional steps provided a colorful view of cells and circuits throughout the brain, according to the statement.

The researchers took one set of MRI images that captured how the mouse’s brain-wide connectivity evolved with age. A second group of images showcased brilliantly colored brain connections that highlighted the deterioration of neural networks in a rodent model of Alzheimer’s disease, according to the statement.

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