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Keyword: chimera

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  • Human trials expected to start next month for Covid-19 treatment derived from cows' blood

    06/17/2020 5:16:16 AM PDT · by Libloather · 7 replies
    CNN via MSN ^ | 6/17/20 | Elizabeth Cohen
    A South Dakota company expects to start human trials next month for a Covid-19 antibody treatment derived from the plasma of cows. But these aren't just any cows. Scientists genetically engineered the animals to give them an immune system that's part human. That way, the animals produce disease-fighting human antibodies to Covid-19, which are then turned into a drug to attack the virus. "These animals are producing neutralizing antibodies that kill [the novel coronavirus] in the laboratory," Eddie Sullivan, CEO of SAB Biotherapeutics said in a statement to CNN. "We are eager to advance to the clinic as we move forward...
  • World's first monkey-pig hybrids are born in Chinese lab as part of ground-breaking bid to grow human organs inside animals for transplants

    12/08/2019 10:16:08 AM PST · by Olog-hai · 89 replies
    Daily Mail (UK) ^ | 04:41 EST, 7 December 2019 | Luke Andrews
    Two chimera piglets containing monkey DNA have been born in China. Although both died within a week and appeared to be normal, the baby animals had genetic material from cynomolgus monkeys in their heart, liver, spleen, lung and skin. Scientists said the research, which required more than 4,000 embryos to get the piglets, aims to find ways of growing human organs in animals for transplantation. “This is the first report of full-term monkey-pig chimeras”, Tang Hai at the State Key Laboratory of Stem Cell and Reproductive Biology in Beijing told New Scientist. Five-day old piglet embryos had monkey stem cells...
  • In Huge Shock, Mitochondrial DNA Can Be Inherited From Fathers

    11/26/2018 5:06:59 PM PST · by BenLurkin · 48 replies
    MtDNA exists separately from the rest of our DNA, inside the thousands of mitochondria within each cell, rather than the cell nucleus. It is so widely accepted as being from the mother's side it is sometimes known as the Eve Gene, the idea being that it can be traced back to some primeval mother of all living humans. Testing of mtDNA is used to identify maternal ancestry. However, all that will have to change after Dr Shiyu Luo of the Cincinnati Children's Hospital Medical Center published a paper in the Proceedings of the National Academy of Sciences. After testing of...
  • Once thought to be asexual, single-celled parasites caught in the act

    06/13/2019 5:16:52 PM PDT · by ETL · 36 replies
    Phys.org ^ | June 13, 2019 | Tamara Bhandari, Washington University School of Medicine
    Even single-celled organisms desire partners every now and then. Leishmania—single-celled parasites that cause infections of the skin and internal organs—have long been known to multiply asexually, like bacteria. But occasionally, researchers have found hybrid parasites that carry genetic material from more than one strain—or even more than one species—of Leishmania, suggesting that some kind of genetic mixing is going on.Now, researchers at Washington University School of Medicine in St. Louis and the National Institutes of Health (NIH) have found that the hybrid Leishmania parasites can mate with one another to produce fertile offspring that carry genes from both parents—signs of...
  • You Have a Voice Regarding 3-Parent Embryos

    03/24/2015 3:20:04 PM PDT · by NYer · 5 replies
    Catholic Stand ^ | March 24, 2015
    Our health, a precise equilibrium, may be disrupted by any disease at any given time. Scientific progress has moved beyond the realm of diagnoses and care of disease, and has now entered the new arena of prediction and prevention while still in the embryonic stage of life, in spite of unknown factors and risks. With the advancing technology comes challenges of safety and efficacy, along with ethical and social considerations. The 3-parent embryo or mitochondrial transfer technology ultimately raises one of the greatest questions we will perhaps ever face as voting Catholics. Are we willing to genetically modify humans on...
  • The Mum Made of TWO Women

    11/13/2003 6:24:42 PM PST · by quidnunc · 121 replies · 5,578+ views
    The Sun [UK] ^ | November 13, 2003 | Brian Flynn
    New York – A MUM has stunned the medical world after tests showed she is made up ofTWO women. And even more incredibly she is NOT the biological mother of two of the children she conceived and had naturally. Docs found the woman, named only as Jane, was formed from non-identical twin embryos who fused together in her own mother’s womb. Her blood and some of her organs are made up of her own cells — while other parts of her body “belong” to her unborn sister. The amazing condition, which baffled doctors for two years, first came to light...
  • When a DNA Test Says You’re a Younger Man, Who Lives 5,000 Miles Away

    12/08/2019 4:33:26 PM PST · by Theoria · 65 replies
    The New York Times ^ | 07 Dec 2019 | Heather Murphy
    After a bone marrow transplant, a man with leukemia found that his donor’s DNA traveled to unexpected parts of his body. A crime lab is now studying the case. Three months after his bone marrow transplant, Chris Long of Reno, Nev., learned that the DNA in his blood had changed. It had all been replaced by the DNA of his donor, a German man he had exchanged just a handful of messages with. He’d been encouraged to test his blood by a colleague at the Sheriff’s Office, where he worked. She had an inkling this might happen. It’s the goal...
  • 'It just really ethically scares me': Caution urged as scientists (trunc)

    07/03/2019 1:55:28 PM PDT · by Twotone · 15 replies
    National Post ^ | July 2, 2019 | Sharon Kirkey
    The monkeys in Douglas Munoz’s Kingston lab look like other monkeys. They socialize and move around and eat and drink in the same way. They don’t fall over or stagger around. In fact, the only thing separating the macaques from their unaltered lab mates is the elevated level of a specific human protein implanted inside their brains — proteins that accumulate in the brains of humans with Alzheimer’s disease. The monkeys have been injected with beta-amyloid, a molecule that, in high-enough amounts, is toxic to human brain tissue. Munoz and collaborators are studying the earliest changes in those monkey cerebrums....
  • Hybrid human chicken embryos: HALF HUMAN – HALF CHICKEN abomination created in US lab

    05/25/2018 10:08:41 AM PDT · by Red Badger · 40 replies
    www.express.co.uk/ ^ | PUBLISHED: 11:09, Thu, May 24, 2018 | UPDATED: 07:32, Fri, May 25, 2018 | By Sebastian Kettley
    A TEAM of stem cell researchers have done the seemingly impossible and successfully combined artificial human cells with the embryo of a chicken in a shock new experiment aimed at trying to better understand developing life. ================================================================================== Until now, scientists have been unable to answer how certain cells in a developing embryo decide to become muscles or limbs, while others become bones and nerves. But now researchers led by Dr Ali Brivanlou, from Rockefeller University in New York, have achieved the unimaginable in a shock experiment. By grafting petri dish-grown human cells onto the embryo of a chicken the scientists...
  • Becoming one flesh (fetal microchimerism)

    08/25/2017 11:35:10 AM PDT · by fishtank · 20 replies
    Creation Ministries International ^ | 8-25-17 | Dr Kathy Wallace
    Editor’s note: Writing in the Journal of Creation in 2015, Dr Kathy Wallace dealt at length with the risks of microchimerism, which is male DNA in women’s bodies. More recently, science journal Nature published a paper on the same subject called Immunological implications of pregnancy-induced microchimerism. It is pleasing to report that it was a creationist scientist who first tackled such a deeply technical subject from a biblical perspective in our peer-reviewed journal. Becoming one flesh by Kathy Wallace Women are at risk from sexual involvement with multiple partners. This can impact their health and increase the risk of miscarriage...
  • A human-pig hybrid embryo has been created in a world first (Tr.)

    01/26/2017 6:42:01 PM PST · by brucedickinson · 143 replies
    Daily Mail ^ | 1-26-2017 | Colin Fernandez
    Part human, part pig embryos have been successfully created by scientists for the first time. The embryos, that were grown inside a sow, contained a 'low' amount of human tissue. But it is hoped one day this technique will allow whole organs in the pig to be grown of human cells, to tackle the increasing shortage of organs for transplants. The ‘chimera’, or human-animal hybrid, was created by injecting human stem cells into pig embryos and then implanting them in a sow. The human stem cells grew and formed part of the tissue of the pig embryos, although they did...
  • In Search For Cures, Scientists Create Embryos That Are Both Animal And Human

    05/18/2016 4:48:01 PM PDT · by BenLurkin · 44 replies
    npr ^ | 05/18/2016 | Rob Stein
    A handful of scientists around the United States are trying to do something that some people find disturbing: make embryos that are part human, part animal. The researchers hope these embryos, known as chimeras, could eventually help save the lives of people with a wide range of diseases. One way would be to use chimera embryos to create better animal models to study how human diseases happen and how they progress. Perhaps the boldest hope is to create farm animals that have human organs that could be transplanted into terminally ill patients. But some scientists and bioethicists worry the creation...
  • Chimeras, Werewolves, and Pigmen Oh My! Science Stranger than Fiction

    05/05/2016 10:47:12 AM PDT · by Stand Up For America Today · 12 replies
    Stand Up For America Today ^ | 5/5/2016 | AJ Watson
    For those of us who remember bits and pieces of Greek mythology, or who play lots of role playing video games, a Chimera was a monstrous hybrid creature often depicted as part lion, part goat, and part snake. In today’s world however Chimeras are very real and in this writer’s humble opinion, very disturbing. The word Chimera today refers most often to animals that are gene spliced with other animals creating a kind of hybrid species. As if this attempt at playing God isn’t alarming enough, human cells are being added to pigs, sheep, goats, mice, and other animals that...
  • Spiders Ingest Nanotubes, Then Weave Silk Reinforced with Carbon

    05/07/2015 2:27:54 PM PDT · by Citizen Zed · 43 replies
    Spiders sprayed with water containing carbon nanotubes and graphene flakes have produced the toughest fibers ever measured, say materials scientists. Spider silk is one of the more extraordinary materials known to science. The protein fiber, spun by spiders to make webs, is stronger than almost anything that humans can make. The dragline silk spiders use to make a web’s outer rim and spokes is amazing stuff. It matches high-grade alloy steel for tensile strength but is about a sixth as dense. It is also highly ductile, sometimes capable of stretching to five times its length. This combination of strength and...
  • This is bullet-proof human skin – made from spider silk and goat milk. Yes, really.

    08/15/2011 9:47:39 PM PDT · by LibWhacker · 31 replies
    io9 ^ | 8/15/11 | Esther Inglis-Arkell
    This is bullet-proof human skin - made from spider silk and goat milk. Yes, really. Jalila Essaidi is testing the limits of human endurance, and it starts by having to milk spider-goats. Spider goats are otherwise innocent-looking goats that have been genetically engineered to produce milk packed with the protein made in spider's silk. (There is no definitive proof that this also gives them a propensity to skitter up walls or hide out in your sock drawer, but I think it does.) Once the goats are milked, Essaidi spins the protein into fiber that is ten times stronger than steel,...
  • Stanford Researchers Urge Lifting of NIH Funding Restrictions on Chimeric Research [Luke 17]

    11/20/2015 9:26:58 AM PST · by Jan_Sobieski · 6 replies
    Bioethics.com ^ | 11/05/2015 | Staff
    Citing the "tremendous potential" of research on human stem cells in nonhuman embryos, scientists and a bioethicist from the Stanford University School of Medicine have co-authored a letter urging the removal of funding restrictions imposed on such research last month by the National Institutes of Health. The researchers believe that work on what are called chimeric embryos is vital to advance our understanding of early human development, further our ability to accurately model devastating diseases and facilitate drug testing to ensure that potential therapies are safe and effective. "Currently, it is impossible to accurately recapitulate human development in vitro, and...
  • Is Another Human Living Inside You?

    09/20/2015 1:43:08 AM PDT · by WhiskeyX · 31 replies
    BBC ^ | 18 September 2015 | David Robson
    Once upon a time, your origins were easy to understand. Your dad met your mum, they had some fun, and from a tiny fertilised egg you emerged kicking and screaming into the world. You are half your mum, half your dad – and 100% yourself. Except, that simple tale has now become a lot more complicated. Besides your genes from parents, you are a mosaic of viruses, bacteria – and potentially, other humans. Indeed, if you are a twin, you are particularly likely to be carrying bits of your sibling within your body and brain. Stranger still, they may be...
  • The ‘Who Am I?’ Generation

    03/22/2014 11:47:31 AM PDT · by NYer · 7 replies
    OSV ^ | March 22, 2014 | Ann Carey
    During a two-day meeting in the last week of February, the Food and Drug Administration debated regulating a new technique that combines DNA from three people that would, in theory, create children free of certain inherited diseases. Scientists say these genetically modified embryos, made with the DNA from two biological mothers and one biological father, would potentially allow mothers who carry DNA mutations for conditions like blindness and epilepsy to have children without passing on these defects.The technique — nicknamed “three-parent in vitro fertilization” — is the latest in a long line of controversial scientific procedures regarding fertility and...
  • OHSU research produces the world's first primate chimeric offspring

    01/05/2012 9:26:54 AM PST · by Pharmboy · 18 replies
    PORTLAND, Ore. - Newly published research by scientists at Oregon Health & Science University provides significant new information about how early embryonic stem cells develop and take part in formation of the primate species. The research, which took place at OHSU's Oregon National Primate Research Center, has also resulted in the first successful birth of chimeric monkeys -- monkeys developed from stem cells taken from two separate embryos. The research will be published this week in the online edition of the journal Cell and will be published in a future printed copy of the journal. The research was conducted to...
  • Superhuman: The Uncharted Territory of Transhumanism

    12/03/2009 3:47:11 PM PST · by NYer · 26 replies · 774+ views
    Inside Catholic ^ | December 3, 2009 | Eric Pavlat
      Cryonics. Neural implants. Designer babies. Welcome to the future of transhumanism. This energetic movement, comprising thousands of adherents, actively promotes the enhancement of humans via cybernetics, genetics, medicine, surgery, nanotechnology, and a full panoply of other scientific advancements. This enhancement would, according to Nick Bostrom's "Transhumanist Declaration," seek to advocate "the moral right for those who wish to do so to extend their mental and physical (including reproductive) capacities and to improve their control over their own lives. [They] seek personal growth beyond [their] current biological limitations" (see www.transhumanism.org).   This may sound like science fiction, but the...