Month: September 2022

CRYOPRESERVATION of embryos is now routine. The next series of postings will look at this topic, including genetic selection, sex selection, and medical tourism to source frozen embryos. View in LinkedIn

LOW TEMPERATURE SURVIVAL IN NATURE. "In this paper, we summarize research concerning how these creatures survive in low temperatures. Freezing places these creatures in suspended animation, but it does not kill them." http://www.frc.org/content/the-viability-of-frozen-human-embryos-lessons-from-animal-research View in LinkedIn

"EMBRYO TRANSFER refers to a step in the process of assisted reproduction in which embryos are placed into the uterus of a female with the intent to establish a pregnancy. This technique (which is often used in connection with in vitro fertilization (IVF)), may be used in humans or in animals, in which situations the goals may vary." http://lnkd.in/d3Rrcey View in LinkedIn

HUMAN EMBRYO CRYOPRESERVATION. "Embryo cryopreservation is ... a component of in vitro fertilization (which generally also includes ovarian hyperstimulation, egg retrieval and embryo transfer) ... a study of 23 countries that almost 42,000 frozen human embryo transfers were performed during 2001 in Europe." http://en.wikipedia.org/wiki/Embryo_cryopreservation View in LinkedIn

THE FIRST TERM PREGNANCY FROM A FROZEN EMBRYO "derived from a frozen embryo was born in 1984. Since then and up to 2008 it is estimated that between 350,000 and half a million IVF babies have been born from embryos frozen at a controlled rate and then stored in liquid nitrogen." http://en.wikipedia.org/wiki/Embryo_cryopreservation View in LinkedIn

CRYOPRESERVED HUMAN EMBRYOS. "In current state of the art, early embryos having undergone cryopreservation implant at the same rate as equivalent fresh counterparts. The outcome from using cryopreserved embryos has uniformly been positive with no increase in birth defects or development abnormalities." http://en.wikipedia.org/wiki/Embryo_cryopreservation View in LinkedIn

FROZEN EMBRYO CHILDREN. "Children born from vitrified blastocysts have significantly higher birthweight than those born from non-frozen blastocysts." This is consistent with the experience in cattle, but in the latter case, anatomical issues have been reported to occur. http://en.wikipedia.org/wiki/Embryo_cryopreservation View in LinkedIn

FROZEN EMBRYO USE 2002. "A total of 396,526 embryos have been placed in storage in the United States. the vast majority of stored embryos (88.2 percent) are being held for family building, with just 2.8 percent of the total (11,000) designated for research." http://lnkd.in/dyUjzYB View in LinkedIn

NUMBER OF FROZEN EMBRYOS IN 2006: "news stories estimated between 400,000 and 500,000 frozen embryos were in storage across the U.S.; some proponents of embryo donation claim that there are at least 600,000 now." http://lnkd.in/dEAnj9P View in LinkedIn

UK FROZEN EMBRYOS. "Since 1990 about 250,000 embryos have been frozen following IVF treatment in Britain. In March 1999 there were 51,346 embryos stored. This had jumped to 97,719 in March 2001 and 116,252 by March 2003, more than doubling in four years." http://lnkd.in/dR6J9fb View in LinkedIn