Category Archives: Assisted reproductive technology
About Giant Eggs & Double Yolks
This week’s gift from a neighbor’s chicken coop included one extra-large egg. After hard-boiling and cracking open we found a double yolk, which some say is a good omen on our wedding anniversary. The following conversation over a meal would … Continue reading
Posted in Animalia, Assisted reproductive technology, Fertility, Nature
Tagged blastocyst, Human egg or oocyte, IVF and ARTs
Elegy for a Significant Speck (frozen eggs and embryos)
Two American fertility clinics reported freezers failing last month, and had thawed to an undisclosed degree. This rare event shocked hundreds of patients who were storing embryos, eggs and ovarian tissue. Maybe it was the equipment that failed or a … Continue reading
Demography of IVF and World Population
Predicting the future is fickle, as Stephen Hawking once observed: “it exists only as a spectrum of possibilities.” And, yet, divining the future is irresistible and physicists strive to forecast the future of stars, black holes and climate. Biologists are … Continue reading
Human Egg Farming
We called the ambitious program, ‘Egg Farming,’ over 30 years ago when I worked at Edinburgh University. That goal drew a step closer today as my graduate student from so many years ago published results of growing human eggs in … Continue reading
Jean Purdy_Remembering a Pioneer
Some of the most absorbing stories I ever read were from historians and biographers when they bring to light the lives of forgotten pioneers and heroes. On the rare occasions my writing and research can cast a light on a … Continue reading
