Herein researchers established a prospective cohort study to assess the impact of COVID-19 on oocyte quality and embryo development. Valid data from a total of 906 couples were obtained from three ...

embryo-forming eggs from denuded oocytes taken from "preantral" follicles in mice. Preantral follicles represent an earlier developmental stage, unlike the more mature antral follicles typically ...

and then transferring that embryo to a uterus, has become widely accepted. Freezing those eggs—or embryos—beforehand is now commonplace, too. But freezing unfertilized human eggs (or oocytes ...

Certain naturally fluorescent compounds in the embryo's metabolism are also key ... To do this, they compared oocytes from young and older females, as age is known to be crucial for oocyte viability.

"Reactive oxidative stress affects multiple aspects of reproductive physiologic processes, including oocyte maturation, fertilization, and embryo development ... [A] large amount of ...

embryo culture and freezing. Following these routines, we can expect a similar number of oocytes harvested and embryos produced in the upcoming three years.” Frank Göritz, Head veterinarian of ...

Oocyte maturation, fertilization, and early embryo development before zygotic activation is characterized by the absence of new transcription from the genome. Thus, the process of oocyte-to-embryo ...

An overview regarding the effects of tobacco compounds on ovarian and tubal function, oocyte and embryo quality, and uterine receptiveness is offered. In addition, the deleterious effects of a ...