Interestingly, annexin-negative sperm seem to have higher oocyte penetration capacity compared to annexin-positive sperm, as well as higher chromatin decondensation after Intracytoplasmatic Sperm Injection (ICSI), an ART technique used to inject a single sperm into an oocyte when normal fertilization is impaired [36] [37].
Frozen eggs require the use of ICSI (injecting a single sperm directly into an egg), which is linked to an increased risk of birth defects; additionally, studies report an elevated risk of ovarian cancer in women who have undergone the hormonal stimulation required to "harvest" eggs.
With the image of a single sperm, we can use the ellipse model to estimate the contour of the sperm.
Since being introduced in 1992, intracytoplasmic sperm injection, in which a single sperm is injected into a mature egg, has sharply increased fertility among couples with male infertility.
1992 First successful birth from Intracytoplasmic Sperm Injection (ICSI), a procedure in which a single sperm is injected directly into the egg.
A single sperm is injected into the center of an egg, making it possible for men with few sperm to become fathers.
IVF involves mixing eggs and sperm together in the laboratory (IVF) or the injection of a single sperm into a single egg (ICSI) to encourage fertilization.
Identical twins are two individuals that have developed from a single egg fertilized by a single sperm.
Fertilization may involve incubating the ovum in sperm or injecting a single sperm into the ovum in intracytoplasmic sperm injection (ICSI).
