The number of infertile couples has increased in recent years and is now
estimated at 1520% of all couples worldwide. Since its introduction
into reproductive medicine in 1978
[1] , in vitro fertilization
has been considered a successful method of treating tubal sterility. With
increasingly intensive diagnosis of both partners, certain aspects of male
subfertility are coming to the forefront. Nowadays almost 50% of insterility
in couples can be attributed to male subfertility
[2] . Intracytoplasmatic
sperm injection (ICSI) has raised hopes that these couples can have children
of their own. In the meantime this method of treating male subfertility
has achieved a breakthrough
[3] and is gaining in importance.
It is establishing itself as the preferred method of treatment in the field
of assisted reproduction, following numerous pregnancies and births
[4] .
Preparation for ICSI involves obtaining an oocyte by means of follicle
aspiration, removal of the cumulus cells and of the corona radiata and preparation
of semen in accordance with the Mini Swim-Up process
[5] or other
preparation procedures
[6]. Thereafter, one sperm is injected
into this oocyte with a thin glass capillary (pipette). If fertilization
has occurred, the embryo is transferred into the uterus 48 hours after microinjection.
For the microinjection process described, Eppendorf
offers
ideal tools for easing the workload: the micromanipulator TransferMan, used
for moving the holding capillary, and a second micro-manipulator TransferMan
for transferring the sperm.
'"/>Source:
Page: All 1 2 3 4 Related biology technology :1.
Delivery of pCMV-S DNA Using the Helios Gene Gun System Is Superior to Intramuscular Injection in Balb/c Mice2.
Determination of Polar Organophosphorus Pesticides in Aqueous Samples by Direct Injection Using HPLC/MS/MS