The journey of the egg and the embryo through the fallopian tube or oviduct toward the uterus is not well understood, mainly because it is inaccessible for direct imaging. Looking to shed new light on the dynamics of the ...
Jul 13, 2021
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A special report published today in the New England Journal of Medicine raises serious questions about the benefits, risks and ethics of a new service—which the authors call "embryo selection based on polygenic scores," ...
Jul 1, 2021
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A team of researchers at Brigham and Women's Hospital and Harvard Medical School have found evidence of mouse and human germline cells resetting their biological age. In their paper published in the journal Science Advances, ...
A large cohort study drawn from the national IVF registry of France, which included almost 70,000 pregnancies delivered after 22 weeks gestation between 2013 and 2018, has found a higher risk of pre-eclampsia and hypertension ...
Jun 30, 2021
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A large cohort study from the national IVF registry of Sweden, which included almost 125,000 treatments carried out between 2007 and 2017, has concluded that the steady rise in birth rates can be attributed to two emerging ...
Jun 30, 2021
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The tiny mouse embryo has a heart that beats. Its muscles, blood vessels, gut and nervous system are beginning to develop. But this embryo is unusual: It was made in a lab, out of mouse embryonic stem cells, and represents ...
Jun 29, 2021
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Studies indicate that the optimal and safe number of oocytes needed for achieving an ongoing pregnancy is between six and 15. However, the use of egg freezing, frozen embryo replacement (FER) cycles and aggressive stimulation ...
Jun 29, 2021
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Despite continuing controversies over its value in improving birth rates in IVF, testing embryos for their chromosomal content has become routine in many fertility clinics. Embryos with a normal complement of chromosomes ...
Jun 28, 2021
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The risk of cancer in children born as a result of fertility treatment has been found to be no greater than in the general population.
Jun 28, 2021
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Quick, accurate and easy-to-use, CRISPR-Cas9 has made genomic editing more efficient—but at the same time has made human germline editing much more feasible, erasing many of the ethical barriers erected to prevent scientists ...
