Fewer than 4 in 100 men who apply to be sperm donors reach the end of the process and have samples frozen and released for treatments, according to a new study.
Jan 9, 2023
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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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Researchers have lifted fertility rates in older female mice with small doses of a metabolic compound that reverses the aging process in eggs, offering hope for some women struggling to conceive.
Feb 12, 2020
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Large doses of a sperm protein that is ineffective in infertile males can be injected directly into eggs to kick-start fertilization, giving couples hope of conceiving.
Apr 18, 2018
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Research into a genetic mutation causing some men to be infertile shows that an important protein in the sperm that is a key component of the egg fertilization process, known as phospholipase C zeta (PLC-zeta), is ineffective ...
Mar 7, 2017
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The development of every animal in the history of the world began with a simple step: the fusion of a spermatozoon (the male gamete) with an oocyte, or egg (the female gamete). Despite the ubiquity of this process, the actual ...
Feb 28, 2016
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We don't know if a sperm actually experiences joy when it finally finds the egg, but it does wiggle excitedly.
Sep 17, 2015
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(HealthDay)— Attention, men: Your favorite meats might be helping or harming your fertility, a new study suggests.
Aug 6, 2015
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Researchers at the National Institutes of Health have discovered a protein that plays a vital role in healthy egg-sperm union in mice. The protein RGS2 can delay an egg's development into an embryo in order to allow time ...
Jul 27, 2015
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Researchers from Columbia University Medical Center (CUMC) have found that the skeleton, acting through the bone-derived hormone osteocalcin, exerts a powerful influence on prenatal brain development and cognitive functions ...
Sep 26, 2013
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