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Archive for the ‘genetics’ category: Page 74

Nov 21, 2023

New computer code for mechanics of tissues and cells in three dimensions

Posted by in categories: biological, genetics, information science, mathematics, supercomputing

Biological materials are made of individual components, including tiny motors that convert fuel into motion. This creates patterns of movement, and the material shapes itself with coherent flows by constant consumption of energy. Such continuously driven materials are called active matter.

The mechanics of cells and tissues can be described by active matter theory, a scientific framework to understand the shape, flow, and form of living materials. The active matter theory consists of many challenging mathematical equations.

Scientists from the Max Planck Institute of Molecular Cell Biology and Genetics (MPI-CBG) in Dresden, the Center for Systems Biology Dresden (CSBD), and the TU Dresden have now developed an algorithm, implemented in an open-source supercomputer code, that can for the first time solve the equations of active matter theory in realistic scenarios.

Nov 21, 2023

Humans Make Better Cancer Treatment Decisions Than AI, Study Finds

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

Treating cancer is becoming increasingly complex, but also offers more and more possibilities. After all, the better a tumor’s biology and genetic features are understood, the more treatment approaches there are. To be able to offer patients personalized therapies tailored to their disease, laborious and time-consuming analysis and interpretation of various data is required. Researchers at Charité – Universitätsmedizin Berlin and Humboldt-Universität zu Berlin have now studied whether generative artificial intelligence (AI) tools such as ChatGPT can help with this step. This is one of many projects at Charité analyzing the opportunities unlocked by AI in patient care.

If the body can no longer repair certain genetic mutations itself, cells begin to grow unchecked, producing a tumor. The crucial factor in this phenomenon is an imbalance of growth-inducing and growth-inhibiting factors, which can result from changes in oncogenes – genes with the potential to cause cancer – for example. Precision oncology, a specialized field of personalized medicine, leverages this knowledge by using specific treatments such as low-molecular weight inhibitors and antibodies to target and disable hyperactive oncogenes.

Nov 21, 2023

Researchers use quantum computing to predict gene relationships

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

In a new multidisciplinary study, researchers at Texas A&M University showed how quantum computing—a new kind of computing that can process additional types of data—can assist with genetic research and used it to discover new links between genes that scientists were previously unable to detect.

Their project used the new computing technology to map gene regulatory networks (GRNs), which provide information about how can cause each other to activate or deactivate.

As the team published in npj Quantum Information, will help scientists more accurately predict relationships between genes, which could have huge implications for both animal and human medicine.

Nov 20, 2023

Aging is Now Optional w/ David Sinclair

Posted by in categories: bioengineering, genetics, life extension, neuroscience

Advancements in genetic engineering, gene therapies, and anti-aging research may eventually allow for age reversal and the restoration of youthful health and longevity.

What is the key idea of the video?
—The key idea is that advancements in genetic engineering and anti-aging research may eventually allow for age reversal and the restoration of youthful health and longevity.

Continue reading “Aging is Now Optional w/ David Sinclair” »

Nov 20, 2023

3D folding of the genome: Theoretical model helps explain how cell identity is preserved when cells divide

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

Every cell in the human body contains the same genetic instructions, encoded in its DNA. However, out of about 30,000 genes, each cell expresses only those genes that it needs to become a nerve cell, immune cell, or any of the other hundreds of cell types in the body.

Each cell’s fate is largely determined by chemical modifications to the proteins that decorate its DNA; these modification in turn control which genes get turned on or off. When copy their DNA to divide, however, they lose half of these modifications, leaving the question: How do cells maintain the of what kind of cell they are supposed to be?

A new MIT study proposes a theoretical that helps explain how these memories are passed from generation to generation when cells divide. The research team suggests that within each cell’s nucleus, the 3D folding pattern of its genome determines which parts of the genome will be marked by these chemical modifications.

Nov 20, 2023

New study reveals the genetics of human head shape

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

Researchers at the University of Pittsburgh and KU Leuven have discovered a suite of genes that influence head shape in humans. These findings, published this week in Nature Communications, help explain the diversity of human head shapes and may also offer important clues about the genetic basis of conditions that affect the skull, such as craniosynostosis.

By analyzing measurements of the cranial —the part of the skull that forms the rounded top of the head and protects the brain—the team identified 30 regions of the genome associated with different aspects of head , 29 of which have not been reported previously.

“Anthropologists have speculated and debated the genetics of cranial vault shape since the early 20th century,” said co-senior author Seth Weinberg, Ph.D., professor of oral and craniofacial sciences in the Pitt School of Dental Medicine and co-director of the Center for Craniofacial and Dental Genetics.

Nov 18, 2023

Scientists Have Developed an Engineered Protein That Improves Memory

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

Researchers from the Faculty of Medicine and Surgery at the Catholic University, Rome and the Fondazione Policlinico Universitario A. Gemelli IRCCS have developed an engineered protein that boosts memory.

Neuroscientists at the Faculty of Medicine and Surgery of the Catholic University, Rome, and the Fondazione Policlinico Universitario Agostino Gemelli IRCCS have genetically modified a molecule, the protein LIMK1, which is normally active in the brain, with a key role in memory.

They added a “molecular switch” that is activated by administering a drug, rapamycin, known for its several anti-aging effects on the brain.

Nov 17, 2023

‘Lab on a Chip’ Genetic Test device can Identify Viruses within Three Minutes with Top-Level Accuracy

Posted by in categories: biotech/medical, genetics

Compact genetic testing device created for Covid-19 could be used to detect a range of pathogens, or conditions including cancer.

A virus diagnosis device that gives lab-quality results within just three minutes has been invented by engineers at the University of Bath, who describe it as the ‘world’s fastest Covid test’

The prototype LoCKAmp device uses innovative ‘lab on a chip’ technology and has been proven to provide rapid and low-cost detection of Covid-19 from nasal swabs. The research team, based at the University of Bath, say the technology could easily be adapted to detect other pathogens such as bacteria — or even conditions like cancer.

Nov 16, 2023

Crispr Surges After Winning The First CRISPR Gene-Editing Approval

Posted by in categories: biotech/medical, genetics

In a world first, regulators in the U.K. approved Crispr’s gene-editing treatment for two blood diseases on Thursday, and CRSP stock surged.

Nov 16, 2023

AI Model Weighs Epigenetic Factors to Predict Cancer Outcomes

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

Findings lay the groundwork for developing targeted therapies aimed at regulating epigenetic factors in cancer therapy.

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