Embryos that have been frozen for 10 years have been resuscitated , is the technology mature?

Relative to the early days, the technology of freezing embryos is now mature. Because they have succeeded in effectively freezing and bringing the embryos to life to a large extent.

The technology is not yet mature, and the current freezing technology is not enough to resurrect people.

No, today's technology can meet the needs of this technology, but there is still a lot of room for development in this technology.

Frozen embryos are stored in liquid nitrogen-196 in early embryos, or blastocysts, during which time the embryos remain dormant and their growth and development stop.

Frozen embryos have the added steps of freezing and thawing compared to fresh embryos, and the viability of the embryos will be reduced if the embryos are not kept intact in these two steps.

From this point of view, fresh embryos go through less than frozen embryos, but whether or not a fresh cycle can be transferred depends on the situation at the time, and it is necessary to ask a doctor to accompany you to evaluate and decide.

Frozen embryos are only there when they need him.

Personally, I think that the reason why so many people choose frozen billet tires is probably because they want to leave a way back for themselves, and they are afraid that they will not have a choice at that time, so they will choose to do it this way.

Because for those who are not easy to get pregnant, they will go to IVF as the first choice, and there is more than one IVF when doing IVF, so that the excess will be frozen.

Because people nowadays want to devote themselves to their careers while they are young, they don't want to choose to get married and have children at the age of hard work, but when they want to have children, they may miss the best age to have children, so they will choose to freeze embryos to preserve their fertility.

Because some of them don't want to get married and have children now for the sake of their careers, but they are afraid that they are not suitable to have children when they are old, and it will be bad if they can't conceive, so they freeze embryos.

Because there are so many people doing IVF now, a few more embryos will be cultivated when doing IVF, so the extra embryos will be frozen.

1. The storage time of frozen embryos can reach more than 20 years, and there is no relationship between the preservation time and the quality of embryos. Because women who have undergone IVF may have undergone fertilized egg culture, but the body has not yet adjusted to the optimal state for transfer, the embryos can be temporarily preserved by embryo freezing. And some women don't want to get pregnant for the time being, they can first have a fertilized egg culture, cryopreservation, and when they want to get pregnant, they can carry out embryo transfer to complete conception.

2. The current medical conditions are not too difficult for embryo cryopreservation, and the key is that in the process of freezing and embryo resuscitation, it is easy to affect the quality of embryos. Simple embryo cryopreservation, the current level of technology to freeze for about 20 years, is no problem.

If the embryo that has been frozen for 10 years is successfully revived, then of course this is considered a twin, because it was cultured from a previous embryo, then this time it must be a twin.

The two of them must belong to twins, but one embryo is frozen, and then the embryo is revived after 10 years, so theoretically it is still twins.

Of course, on a biological level, this is still a twin, but the two children are too different in age.

Personally, I don't think it counts, the so-called twins are born at the same time. But after ten years, they can only be said to be brothers.

Ten years ago, Ms. Wang's difficult pursuit of her son failed for many years. Ms. Wang said that she was ready to be a mother when she got married, but she was physically and mentally exhausted by multiple spontaneous abortions and could not prepare for a five-year pregnancy. In 2009, she came to the reproductive center of Hubei Maternal and Child Health Hospital and decided to implement in vitro fertilization.

In October of that year, she successfully transferred an embryo, and the remaining embryos were frozen and stored in a fertility center. In Hubei Maternal and Child Health Hospital, a lovely son, Lu Lu (pseudonym), was successfully conceived through in vitro fertilization technology, bringing endless joy to the family. Lu Lu grew up slowly, and she was cute and sensible.

For the past two years, he has had one wish: to have a younger brother or sister. Most of the students at Lulu's school have siblings, and Lulu is envious of them.

Ms. Wang said Lulu also loves children, and many of her friends have two children at the same time. She takes the kids with her at every party. It's not troublesome at all, but she's very happy and enviable.

A batch of frozen embryos was left. As his son grows up, he increasingly wants to have a younger brother and sister with him, and Ms. Wang has been thinking about the embryos kept in the hospital. Last year, she came to the hospital for another transfer that allowed a high-quality embryo to be "restored."

Last year, she came to the reproductive center of Hubei Maternal and Child Health Hospital again and decided to fight again to add a baby to her family. <>

Ten years later, twin brothers were born

Ms. Wang is 40 years old and has a low success rate of IVF. "Zheng Jie, director of the reproductive center of Hubei Maternal and Child Health Hospital, decided to use "bag culture technology" to improve the survival rate of embryo transfer. <>

In traditional IVF techniques, embryo culture can be performed for 2-3 days after egg retrieval, while "capsule culture" is to keep these embryos for another 2 days and then select higher quality embryos for transfer. "We usually call embryos that have been cultured for two or three days as seeds, and then continue to culture for two days to see which seeds can germinate and continue to grow. Zheng Jie said for example.

It's extremely rare that the twins are separated by 10 years and have so much in common.

Frozen 10-year embryos are resuscitated in this way, and frozen 10-year embryos are frozen with glass. Ten years later, he was resuscitated with advanced technology, so this is the most successful recovery.

In fact, the main reason is that the embryo can be resuscitated by transferring it into the human uterus using medical technology.

Through a unique high-tech technology, the embryo is frozen to keep it alive, and the embryo is reduced into the mother's body after 10 years to complete the embryo resuscitation.

After the embryos that have been frozen for ten years are thawed, they are immediately put into the uterus of the embryonic mother and developed, and they are "revived"!

Embryos that have been frozen for 10 years will slowly recover and grow into a living thing after being exposed to nutrients.

After 27 years of freezing in the United States, embryos can still be awakened and can continue to be used. The preservation technology of embryos has reached a relatively good level, and if the freezing technology is more advanced and the environment is more suitable, then the frozen embryos can be maintained for decades without being affected. And the United States can keep such an embryo for 27 years and be awakened again, in fact, it is also a medical miracle.

If the conditions are even better than him, and people have the patience to wait for this freezing process, it can remain frozen for a long time.

First, the process of embryo freezingEmbryo freezing is a relatively complex process, it is not only a simple matter of putting embryos in a refrigerator to freeze, the temperature of the refrigerator is far from reaching the freezing conditions required by embryos. In such an ultra-low temperature environmental process, the embryo will temporarily grow and develop on its own, and only after thawing can a successful recovery work be carried out. During the freezing period, people need to take care of it carefully, otherwise it may affect the development of such an embryo, resulting in no way to continue to use it even after thawing.

Second, the reason for freezing embryosPeople need to freeze embryos, in fact, because people's current physical conditions are not suitable for embryo transfer. Or people don't want to transfer embryos at the moment, so they use some unique time to freeze the embryos as a whole. Wait until they want to use the embryos again.

Or when people were cultivating embryos at that time, there were still a lot of embryos that were not used, but in order to prevent themselves from using them again in the future, they first froze the embryos.

Nowadays, the technology of freezing embryos has been very developed, and if people want to preserve their embryos in this way, it is completely possible.

Embryo freezing in the United States has been awakened for 27 years, and embryo preservation technology has reached a relatively high level, which can already freeze the embryos of pregnant mothers in order to keep a good embryo for themselves.

The embryo preservation technology in the United States has reached a very good level after 27 years of freezing, and I think it is really remarkable to be able to keep an embryo alive after 27 years, and it is enough to see the maturity of this technology.

The technology of embryo preservation has reached a very well-established level, and if you have an idea of this, you can try it, and there is basically no problem.

Yes, the Army Hospital of the 73rd Army (formerly the 174 Hospital) said that before 2010Many of the tens of thousands of frozen embryos go unnoticed。And because it has been too long, some couples may change their address or ** after giving birth, and then lose contact, and these embryos become ownerless frozen embryos.

In addition, in order to preserve these "lives", the hospital has also set aside a special site to place liquid nitrogen tanks, and constantly fill them with liquid nitrogen every week. Some frozen embryos have not been renewed for more than 10 years, but they are still kept by the hospital.

It is understood that the conditions for freezing embryos are strict and need to be stored in a liquid nitrogen tank at minus 196, because only in this environment can the metabolism of embryos be almost stationary and maintain the quality when they were taken out. In other words, all that is frozen inside is "life".