Normal Adult Cells Reprogrammed Into Stem Cells
Being able to prompt this behaviour in the body could one day be used to repair ailing organs including the heart, liver, spinal cord and pancreas.
What's the Latest Development?
For the first time ever, normal adult cells have been reprogrammed to become stem cells in the bodies of live mice. Making the stem cells was done by taking a sample of adult cells, such as skin cells, and treating them with four proteins that rewind the cells back to an embryonic-like state. The achievement was led by Manuel Serrano of the Spanish National Cancer Research Center in Madrid: "By doing it in situ, the cells are already there in the tissue, in the right position," he said. The technique overcomes the difficulties inherent in making cells outside the body, grafting them into people, and then of potential rejection.
What's the Big Idea?
When mice were injected with the special antibiotic, the genes activated, and new stem cells formed and matured at several sites in the body, including the stomach, intestine, pancreas and kidney. "As stem cells can be coaxed into developing into almost any kind of cell, being able to prompt this behaviour in the body could one day be used to repair ailing organs including the heart, liver, spinal cord and pancreas." That benefit, however, carries with it potential harm. Clumps of stem cells risk becoming jumbled with different kinds of adult tissue, resembling tumors—perhaps functioning like them, too.
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Researchers have just discovered the remains of a hybrid human.
90,000 years ago, a young girl lived in a cave in the Altai mountains in southern Siberia. Her life was short; she died in her early teens, but she stands at a unique point in human evolution. She is the first known hybrid of two different kinds of ancient humans: the Neanderthals and the Denisovans.
These thought leaders, founders, and entrepreneurs are propelling the kind of future we want to be a part of.
- The tech industry may be dominated by men in terms of numbers, but there are lots of brilliant women in leadership positions that are changing the landscape.
- The women on this list are founders of companies dedicated to teaching girls to code, innovators in the fields of AI, VR, and machine learning, leading tech writers and podcasters, and CEOs of companies like YouTube and Project Include.
- This list is by no means all-encompassing. There are many more influential women in tech that you should seek out and follow.
Most said they want to act on their desire someday. But do open relationships actually work?
- The study involved 822 Americans who were in monogamous relationships at the time.
- Participants answered questions about their personalities, sexual fantasies, and intentions to act on those fantasies.
- Research suggests practicing consent, comfort, and communication makes open relationships more likely to succeed.
Consensual non-monogamy fantasies<p>For the new study, published in <a href="https://link.springer.com/article/10.1007/s10508-020-01788-7" target="_blank">Archives of Sexual Behavior</a>, researchers asked 822 people in monogamous relationships to:</p><ul><li>Describe their favorite sexual fantasy, defined as "mental images you have while you are awake that you find to be sexually arousing or erotic."</li><li>Select which themes apply to that fantasy, such as having sex with multiple people at the same time, experimenting with taboos, or engaging in a sexually open relationship.</li><li>Answer whether they intended to carry out these fantasies, and discuss them with their partner.</li><li>Complete assessments on relationship satisfaction, erotophilia and personality, as measured by the Big Five Personality inventory.</li></ul><p>The results showed that 32.6 percent of participants said being part of a sexually open relationship was "part of their favorite sexual fantasy of all time." More surprising is that, of that one-third, 80 percent said they want to act on this fantasy in the future.</p>
Pretzelpaws via Wikipedia Commons<p style="margin-left: 20px;">"The present research confirms the important distinction between sexual fantasy and sexual desire in that not everyone wanted to act on their favorite sexual fantasy of all time," study author Justin J. Lehmiller told <a href="https://www.psypost.org/2020/09/one-third-of-people-in-monogamous-relationships-fantasize-about-being-in-some-type-of-open-relationship-study-suggests-58102" target="_blank">PsyPost</a>. "This suggests that fantasies may serve different functions for different people."</p><p>Even though most participants said they want to act out their fantasy in the future, far fewer reported acting out sexual fantasies in the past. Other findings included:</p><ul><li>Men were more likely to fantasize about CNMRs.</li><li>So were people who scored high in <a href="https://en.wikipedia.org/wiki/Erotophilia#:~:text=Erotophilia%20is%20a%20personality%20trait,ranging%20from%20erotophobia%20to%20erotophilia." target="_blank">erotophilia</a> and sociosexual orientation.</li><li>The psychological predictors of fantasizing about CNMRs differed from predictors about infidelity fantasies.</li></ul>
Do open relationships work?<p>A <a href="https://www.tandfonline.com/doi/full/10.1080/00224499.2019.1669133" target="_blank">2019 study</a> from psychologists at the University of Rochester suggests it <em>is </em>possible<em>, </em>but especially when both partners practice a trio of behaviors: consent, communication, and comfort — or, the Triple-C Model.<br></p>But the study also suggests not all forms of open relationships are equally viable. For example, people in one-sided CNMRs — where one partner stays monogamous, the other seeks outside sexual relationships — were nearly three times more dissatisfied in their relationships than the monogamous group <em>and </em>the consensual non-monogamous group.
The results of this study showed depressive symptoms being highest in adolescence, declining in early adulthood and then climbing back up again into one's early 30s.