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Archive for the ‘genetics’ category: Page 204

Jan 5, 2022

Dr. Maximina Yun, Ph.D. — Unlocking Secrets Of Salamander Regeneration For Regenerative Therapies

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

Unlocking The Secrets Of Salamander Regeneration For Regenerative Therapies — Dr. Maximina Yun, Ph.D., CRTD / Center for Regenerative Therapies TU Dresden, Technische Universität Dresden.


Dr. Maximina Yun, Ph.D. (https://tu-dresden.de/cmcb/crtd/forschungsgruppen/crtd-forsc…oup-leader) is Research Group Leader at the Center for Regenerative Therapies Dresden (CRTD), Technical University Dresden, jointly affiliated with Max Planck Institute for Molecular Cell Biology and Genetics (MPI-CBG).

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Jan 5, 2022

Common antidepressant slashes risk of COVID death, study says

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

A cheap, widely available drug used to treat mental illness cuts both the risk of death from COVID-19 and the need for people with the disease to receive intensive medical care, according to clinical-trial results1. The drug, called fluvoxamine, is taken for conditions including depression and obsessive-compulsive disorder. But it is also known to dampen immune responses and temper tissue damage, and researchers credit these properties with its success in the recent trial. Among study participants who took the drug as directed and did so in the early stages of the disease, COVID-19-related deaths fell by roughly 90% and the need for intensive COVID-19-related medical care fell by roughly 65%.


Study co-author Angela Reiersen, a psychiatrist at Washington University School of Medicine in St Louis, Missouri, has long been interested in using fluvoxamine to treat a rare genetic condition. While monitoring the fluvoxamine literature before the pandemic, she came across a 2019 study showing that fluvoxamine reduced inflammation in mice with sepsis2. When COVID-19 hit, “I immediately thought back to that paper with the mice,” she says.

Reiersen and her colleagues partnered with the organizers of the TOGETHER Trial, which aims to identify approved drugs that can be repurposed to treat COVID-19. The team’s study included 1,497 people in Brazil who had COVID-19 and were at high risk of severe disease. Roughly half received fluvoxamine, and the rest received a placebo.

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Jan 3, 2022

Christians point to genetics breakthroughs to show Adam and Eve are not incompatible with evolution

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

Many Christians have rejected the scientific theory of evolution in part because they think it rules out the existence of a historical Adam and Eve. Yet some scientists and theologians argue that recent breakthroughs in genetics make a historical Adam and Eve compatible with evolution, and that this development may help bridge what many see as a conflict between faith and science.

“For over 160 years, the societal conflict over evolution has been deep and stubborn. But now, in a surprise twist, evolutionary science is making space for Adam and Eve,” S. Joshua Swamidass, an associate professor at the Washington University School of Medicine in St. Louis, Missouri, told Fox News Digital. “It turns out that the theological questions are about genealogical ancestry, not genetics. In this paradigm shift, we are finding a better way forward, a better story to tell.”

In his book “The Genealogical Adam and Eve: The Surprising Science of Universal Ancestry,” Swamidass argues that genetics and evolutionary theory do not conflict with the existence of Adam and Eve, universal ancestors of all humans whom Jesus died to save.

Jan 1, 2022

A.I. Can Produce Images of Your Face Using Only Genetic Data

Posted by in categories: genetics, life extension, robotics/AI

Researchers at Human Longevity have developed technology that can generate images of individuals face using only their genetic information. But not all are convinced.

Jan 1, 2022

First sickle cell patient treated with CRISPR gene-editing still thriving

Posted by in categories: biotech/medical, genetics

More than fine, actually. Much more, she says.

“This is major for me and my family,” she says. “Two years without me being in the hospital? Wow. We just can’t believe it. But we’re so grateful.”

She’s doing so well for so long that she’s officially no longer in the landmark study she volunteered for. That involved doctors taking cells out of her bone marrow, and editing a gene in the cells in their lab, using the revolutionary gene-editing technique known as CRISPR. CRISPR allows scientists to make very precise changes in DNA much more easily than ever before. Many think it will revolutionize medicine.

Jan 1, 2022

Alzheimer’s Risk Gene May Impair Neuroprotective Mechanism

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

Our bodies have some healing and regenerative capabilities. For most of us, cuts will mend, we’ll recover from mild infections, and at the cellular level, | Genetics And Genomics.


The leading scientific social networking website and producer of educational virtual events and webinars.

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Dec 30, 2021

Human DNA Extracted From Nits on Ancient Mummies Sheds Light on South American Ancestry

Posted by in categories: biotech/medical, genetics

New technique means head lice can provide clues about ancient people and migration.

Human DNA

DNA, or deoxyribonucleic acid, is a molecule composed of two long strands of nucleotides that coil around each other to form a double helix. It is the hereditary material in humans and almost all other organisms that carries genetic instructions for development, functioning, growth, and reproduction. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Dec 30, 2021

Ancient DNA Analysis Reveals Large Scale Migrations Into Bronze Age Britain

Posted by in categories: biotech/medical, genetics

A major new study of ancient DNA has traced the movement of people into southern Britain during the Bronze Age.

In the largest such analysis published to date, scientists examined the DNA of nearly 800 ancient individuals.

The new study, led by the University of York 0, Harvard Medical School, and the University of Vienna, shows that people moving into southern Britain around 1300‒800 BC were responsible for around half the genetic ancestry of subsequent populations.

Dec 28, 2021

Interstellar Travel and Post-Humans

Posted by in categories: alien life, genetics, habitats, robotics/AI

“Interstellar Travel and Post-Humans” by Martin Rees is one of the chapters of the book “The Next Step: Exponential Life”.


Astronomers like myself are professionally engaged in thinking about huge expanses of space and time. We view our home planet in a cosmic context. We wonder whether there is life elsewhere in the cosmos. But, more significantly, we are mindful of the immense future that lies ahead—the post-human future where our remote descendants may transcend human limitations—here on Earth but (more probably) far beyond. This is my theme in the present chapter.

The stupendous timespans of the evolutionary past are now part of common culture. But the even longer time-horizons that stretch ahead—though familiar to every astronomer —have not permeated our culture to the same extent. Our Sun is less than half way through its life. It formed 4.5 billion years ago, but it has got six billion more before the fuel runs out. It will then flare up, engulfing the inner planets and vaporizing any life that might still remain on Earth. But even after the Sun’s demise, the expanding universe will continue—perhaps forever—destined to become ever colder, ever emptier.

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Dec 27, 2021

How DNA is preserved in archaeological sediments for thousands of years

Posted by in categories: biotech/medical, genetics

Sediments in which archaeological finds are embedded have long been regarded by most archaeologists as unimportant by-products of excavations. However, in recent years it has been shown that sediments can contain ancient biomolecules, including DNA. “The retrieval of ancient human and faunal DNA from sediments offers exciting new opportunities to investigate the geographical and temporal distribution of ancient humans and other organisms at sites where their skeletal remains are rare or absent,” says Matthias Meyer, senior author of the study and researcher at the Max Planck Institute for Evolutionary Anthropology in Leipzig.

To investigate the origin of DNA in the sediment, Max Planck researchers teamed up with an international group of geoarchaeologists—archaeologists who apply geological techniques to reconstruct the formation of sediment and sites—to study DNA preservation in sediment at a microscopic scale. They used undisturbed blocks of sediment that had been previously removed from archaeological sites and soaked in synthetic plastic-like (polyester) resin. The hardened blocks were taken to the laboratory and sliced in sections for microscopic imaging and genetic analysis.

The researchers successfully extracted DNA from a collection of blocks of sediment prepared as long as 40 years ago, from sites in Africa, Asia, Europe and North America. “The fact that these blocks are an excellent source of ancient DNA—including that originating from hominins—despite often decades of storage in plastic, provides access to a vast untapped repository of genetic information. The study opens up a new era of ancient DNA studies that will revisit samples stored in labs, allowing for analysis of sites that have long since been back-filled, which is especially important given travel restriction and site inaccessibility in a pandemic world,” says Mike Morley from Flinders University in Australia who led some of the geoarchaeological analyses.