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Thread: Women Absorb And Retain DNA From Every Man They Have Sex With

  1. #21
    Mad Genius For Hire Puzzling Evidence's Avatar
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    From
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    Is Newsweek a good enough source for you Pulitzer Scientists?

    HOW MALE DNA GETS IN A WOMAN’S BRAIN
    BY AMANDA SCHAFFER ON 10/8/12 AT 1:00 AM

    ILLUSTRATION BY OLIVER MUNDAY FOR NEWSWEEK
    CULTURE


    In case any doubt remained that guys get into girls’ heads, for the first time scientists have found male DNA in the human female brain. Researchers at the Fred Hutchinson Cancer Research Center in Seattle examined dozens of women’s brains and discovered that the majority of them contained genetic material found only on the Y chromosome.

    This material almost certainly isn’t found in girls’ genomes when they’re born (except in cases of rare genetic abnormalities). So when material from the Y chromosome is found in women’s bodies, a phenomenon more broadly called microchimerism, scientists suspect that it somehow got in later on. But how?

    The most likely explanation is that during a pregnancy cells from a male fetus slipped across the placenta, circulated in the mother’s body and lodged in her brain. In the new work, made public in September in the journal PLOS ONE, J. Lee Nelson, an immunogeneticist, and her colleagues examined autopsy specimens from 59 women and found that 63 percent of them had male genetic material in their brains. (Cells from a female fetus can also slip in, but they are harder to detect in the mother, hence the focus on sons.) Even for those who’ve never given birth to sons, a pregnancy that ended in abortion or miscarriage can also lead to microchimerism. (So can blood transfusions of nonirradiated blood, as trauma victims sometimes receive, and so can having a twin, including one that disappeared in utero.)

    How Male DNA Gets in a Woman?s Brain

  2. #22
    Mad Genius For Hire Puzzling Evidence's Avatar
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    You guys showing up to take a piss on this thread are going down. I pick on Spooky all the time, but today, I'm his big gun and I'm aiming it at your heads.

  3. #23
    Mad Genius For Hire Puzzling Evidence's Avatar
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    .... Higher levels of microchimerism may protect some women from breast cancer. Analyzing blood samples taken from a group of Danish women in the 1990s, V.K. Gadi, an oncologist at the University of Washington, and his colleagues recently found that the women who had less microchimerism back then were more likely to have developed breast cancer a decade later.

    In other words, not having this foreign genetic material, perhaps from a fetus, seemed to increase their chances of getting the disease, says Gadi. “It’s as if they were missing something that might have been protective.”

    Wow, this isn't fake news, people. This has actually been observed in quite large numbers.

    NO -- it has not been debunked by Snopes.
    Last edited by Puzzling Evidence; 26th June 2017 at 05:33 PM.

  4. #24
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    From
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    This one is from Popular Science. It does not contain information about men who did nor father children with these women, but it is compelling, just the same.

    After Pregnancy, Many Women Have Bits Of Male DNA In Their Brains
    Carrying a male fetus found to cause microchimerism

    Mothers aren't just emotionally connected to their sons. A new study shows how genetic material can be passed on from fetuses during pregnancy, travelinging through the human blood-brain barrier and settling in--and it might be relatively normal, too.

    Researchers took brain autopsies from 59 women between the ages of 32 and 101; a full 63 percent had the genetic material inside (the oldest woman found with an example of it was 94). The condition is known as a type of microchimerism, and it might've stayed with the women from their pregnancy, all the way until they died.

    That's a small sample, so it's tough to draw direct conclusions on the health effects--positive or negative--that are related to it. Thirty-three women in the sample had Alzheimer's; the other 26 were neurological-disease-free. But that doesn't mean we're completely in the dark about microchimerism. From a statement on the study:

    However, other Hutchinson Center studies of male microchimerism in women have found it to impact a woman's risk of developing some types of cancer and autoimmune disease. In some conditions, such as breast cancer, cells of fetal origin are thought to confer protection; in others, such as colon cancer, they have been associated with increased risk. Hutchinson Center studies also have linked lower risk of rheumatoid arthritis to women who previously had given birth at least once as compared to nulliparous women.

    Fred Hutchinson Cancer Research Center

    After Pregnancy, Many Women Have Bits Of Male DNA In Their Brains | Popular Science

  5. #25
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    This thread is offering the very plausible possibility that women (who have already been proven to carry the DNA of the men who fathered their children in their brain) may also carry the DNA of any sex partner they may have had. It is a valid thread that deserves serious replies -- not trolling and asinine comments.

  6. #26
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    Semen secrets: How a previous sexual partner can influence another male's offspring

    Date:
    October 1, 2014

    Source:
    University of New South Wales

    Scientists have discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner -- in flies at least. Researchers manipulated the size of male flies and studied their offspring. They found that the size of the young was determined by the size of the first male the mother mated with, rather than the second male that sired the offspring.
    Share:

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    Neriid flies are depicted. Scientists at UNSW Australia have studied the flies and discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner.
    Credit: Russell Bonduriansky
    Scientists have discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner -- in flies at least.

    Sponsored Message


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    This confronting idea, known as telegony, dates back to ancient Greek times, but was discredited in the early 20th Century with the advent of genetics.

    To test it out, UNSW Australia scientists Dr Angela Crean, Professor Russell Bonduriansky and Dr Anna Kopps manipulated the size of male flies and studied their offspring.

    They found that the size of the young was determined by the size of the first male the mother mated with, rather than the second male that sired the offspring.

    "Our discovery complicates our entire view of how variation is transmitted across generations, but also opens up exciting new possibilities and avenues of research. Just as we think we have things figured out, nature throws us a curve ball and shows us how much we still have to learn," says lead author Dr Crean.

    https://www.sciencedaily.com/release...1001090238.htm

  7. #27
    Not Real MeBelle's Avatar
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    Quote Originally Posted by Hollywood View Post
    Who cares.
    It's an interesting topic.
    Thanks from Puzzling Evidence

  8. #28
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    Quote Originally Posted by Friday13 View Post
    Interesting.

    In actuality, however, that*study (which was published in PLOS ONE in 2012, despite being billed as “new” in 2017) demonstrated for the first time the presence of genetically distinct male cells in the brains of women (who had been examined in autopsy). The existence of male cells in the bodies of females, in general, is not news. As discussed in a PLOS ONE blog*post describing that 2012 study, their presence is typically ascribed to cells from a male fetus from a prior pregnancy:

    The idea of two genetically distinct populations of cells, or their DNA, residing in one individual isn’t new. It’s called microchimerism. […] Medical chimerism arises after a transfusion or transplant, and it may follow pregnancy. Our microbiomes, the bacteria within us, are more like guests than body parts.

    [The research groups responsible for the 2012 study] found Y chromosome DNA sequences in several brain regions in autopsy slides from 37 out of 59 women. Such DNA liberated from fetal cells can come from several sources: children, fetuses that never made it to be born, older siblings, or twins. Both son and daughter DNA partake in this “feto-maternal trafficking,” but female DNA, at the chromosomal level, is harder to detect amid the maternal two X’s.


    The most likely source of male [microchimerism, Mc] in female brain is acquisition of fetal Mc from pregnancy with a male fetus. In women without sons, male DNA can also be acquired from an abortion or a miscarriage. The pregnancy history was unknown for all but a few subjects in the current studies, thus male Mc in female brain could not be evaluated according to specific prior pregnancy history. In addition to prior pregnancies, male Mc could be acquired by a female from a recognized or vanished male twin, an older male sibling, or through non-irradiated blood transfusion.

    But, YOURNEWSWIRE thought it meant something different:

    Through the study the researchers assumed that the most likely answer was that all male DNA found living in the female brain came from a male pregnancy. That was the safe, politically correct assumption. But these researchers were living in denial. Because when they autopsied the brains of women who had never even been pregnant, let alone with a male child, they STILL found male DNA cells prevalent in the female brain.
    At this point the scientists didn’t know what the hell was going on. Confused, they did their best to hide the evidence until they could understand and explain it. They buried it in numerous sub studies and articles, but if you sift through them all you will find the damning statement, the one line that gives the game away and explains exactly where these male DNA cells come from.


    Of course YNW offer no sources to back up their claims.
    Last edited by Blues63; 26th June 2017 at 06:29 PM.
    Thanks from Friday13 and Panzareta

  9. #29
    Not Real MeBelle's Avatar
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    From
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    Quote Originally Posted by cpicturetaker12 View Post
    BEWARE: Not that we expect FACTUAL data from this poster but, this one apparently is BREITBART crazy...


    CONSPIRACY-PSEUDOSCIENCE

    Sources in the Conspiracy-Pseudoscience category may publish unverifiable information that is not always supported by evidence. These sources may be untrustworthy for credible/verifiable information, therefore fact checking and further investigation is recommended on a per article basis when obtaining information from these sources. See all Conspiracy-Pseudoscience sources.

    Factual Reporting: MIXED

    Notes: This site has some legit news but there is quite a few conspiracies mixed in. This site is mostly a clickbait

    You're not telling the truth.

    Why are you afraid to post about the topic?

    And it's not Breitbart either, silly.

  10. #30
    Not Real MeBelle's Avatar
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    From
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    Quote Originally Posted by Blues63 View Post
    Done and dusted!
    Published!

    Male Microchimerism in the Human Female Brain

    Citation: Chan WFN, Gurnot C, Montine TJ, Sonnen JA, Guthrie KA, Nelson JL (2012) Male Microchimerism in the Human Female Brain. PLoS ONE 7(9): e45592. https://doi.org/10.1371/journal.pone.0045592

    Editor: Martin Gerbert Frasch, Université de Montréal, Canada

    Received: April 30, 2012; Accepted: August 23, 2012; Published: September 26, 2012

    Copyright: © Chan et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

    Funding: This work was supported by the National Institutes of Health (NS 071418 and AI-41721 to JLN). WFNC was supported by a Canadian Institutes of Health Research Fellowship Award (SIB-95173). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


    Competing interests: The authors have declared that no competing interests exist.

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