Recent Examples of blastocyst from the Web
In more 80 percent of the 41 fertilized ovums tested, the growing and dividing cells failed to form a hollow sphere of about 200 cells, called a blastocyst.
Currently, technicians rely on the shape of the days-old blastocyst, but having a more reliable way to determine if the embryo is healthy would vastly improve on IVF results.
The team allowed the fertilized cells to develop into blastocysts—the stage at which embryos are usually implanted into the mother during fertility treatments.
The goal is to assess cellular development and move these embryos to blastocyst stage (a more complex embryo structure made up of about 200 cells) on Day 5.
The team then took stem cells from rats and injected them into pig blastocysts.
These add-ons include blastocyst culture, where the embryo is allowed to grow in the lab for five days instead of the usual three, before being transferred to a woman’s uterus.
The researchers then attempted a similar procedure injecting rat stem cells into pig blastocysts.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blastocyst.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of blastocyst
Learn More about blastocyst
Britannica.com: Encyclopedia article about blastocyst
Seen and Heard
What made you want to look up blastocyst? Please tell us where you read or heard it (including the quote, if possible).