Important indicators during embryonic development
Today, with the increasing popularity of artificial assisted reproduction and in vitro fertilization technology, how to determine whether the embryo is alive has become the focus of many expectant parents. There are many important indicators in the development process of the embryo that can help us judge whether the embryo is still alive. Here we will analyze the vitality of the embryo from four aspects.
Development speed
The development speed of an embryo is one of the important indicators to determine whether it is still alive. A normally developing embryo usually becomes an 8-cell embryo 3 to 4 days after fertilization, and then becomes a spherical blastocyst on days 5 to 6. On days 7 to 10, the embryo embeds itself into the uterine wall with the help of intrauterine proteins. At this time, it may become a fluid-secreting blastocyst or a spot-like blastocyst.
Morphological assessment
Another technique available to assess embryonic development is morphological assessment. A normal embryo should not only reach a specific developmental stage on time, but also have a certain morphological form. Scientists have established characteristic traits for each stage of the embryo and classified the different morphologies of embryos. Morphological evaluation of stem cell storage units is typically performed on days three and five to determine whether there are high-quality embryos that can continue to grow.
Levels of implantation inhibitors (similar to human chorionic gonadotropin)
Another important indicator of whether an embryo is still alive is that it is affected by implantation inhibitors. According to research, if the saturation intensity of the implantation inhibitor is too high during the gestation period before embryo transfer, the embryo may die prematurely or fail to implant. Therefore, testing for implantation inhibitors can help scientists assess the likelihood of embryo survival.
Membrane permeability and blastocyst diagram
The viability of embryos at the nodal stage (near pre-implantation) can be assessed using periembryonic morphograms. This graph measures the average transparency and expansion (elevation) rate of the embryo over time. Membrane permeability broadly defines viability levels and is a simple and quick way to measure the overall viability of an embryo. Through these techniques, scientists can monitor the evolving characteristics of embryos and assess whether they are still viable.
Summary
As mentioned above, there are many techniques and indicators available to assess the viability of embryos during development. By analyzing the embryo\’s development speed, morphological assessment, implantation inhibitor levels, membrane permeability and blastocyst diagram, we can help us determine whether the embryo is still alive and help expectant parents and professional medical workers to control it more accurately. The whole process of in vitro fertilization.
