Heat-Induced Hyperactivation
Sperm (at center) incubated at 40C shows hyperactive motility (star-spin pattern) while other sperm cells show progressive or zero motility. Fertil. Steril. 69,118, 1998. 17 September 2004
Sperm Head Decondensation
Composite photos of in vitro sperm head decondensation. After sperm entry into the oocyte, the head enlarges (the acrosomal cap is sometimes visible), followed by formation of the pronucleus. Magnification 1000x (Optical 500x, Digital 2x). 17 September 2004
Sperm preparation for ICSI
This mehod is a rapid and simple sperm preparation for ICSI. This device comprises a tubular conduit, which has a constriction to create capillary flow. Motile sperm, having passed through the constriction, can be observed to maintain a position within the conduit downstream from the constriction me 17 September 2004
Scanning Electron Microscopy
The image shows a scanned electron micrograph of human spermatozoa taken from a semen specimen.(Magnification : x12,000). 17 September 2004
Male and Female sperm cells
Blue dots represent decondensed human spermatozoa heads , stained with DAPI
orange signales-Y chromozome-male sperm
green signals -X chromozome-female sperm
Prepared by FISH techniques 17 September 2004
Comet Assay: DNA-Damaged Sperm
Real-time modified alkaline SCGE assay showing fluorescent DNA unraveling from damaged sperm nucleus and forming comet tail. Am J Obstet Gynecol. 2001;184:1068. 17 September 2004
Embryo Defragmenting
Removing Fragments and degenerated blastomeres from the Embryo 17 September 2004
Stump tail immotile sperms
Image shows stump tail spermatozoa recovered from an ejaculate. The subject was treated for childlessness on 4 occasions by ICSI with immotile ejaculatory stump tail spermatozoa. Pregnancy was achieved on three occasions in the same couple. The pregnancies proceeded to two normal term deliveries and 17 September 2004
3D-PZD (Illustration)
Three-dimensional partial zona dissection for preimplantation genetic diagnosis and assisted hatching. 17 September 2004
Embryo Conjoined with Oocyte
Image shows a 8-Cell Human Embryo Conjoined with immature oocyte both of which originally drived from immature oocyte with a GV- Stage oocyte. The mature oocyte was fertilized by ICSI while the GV- stage oocyte allow to matured in vitro. 17 September 2004
Diploid Egg
An oocyte with two polar bodies.Could it be a diploid egg? 17 September 2004
Blastocyst Conjoined w/ Egg
Image shows a 2PN human day 1 zygote conjoined with an immature oocyte, both of which were originally drived from a mature and an immature oocyte respectively. The mature oocyte was fertilized by IVF. 17 September 2004
6 cell embryo from GV oocyte
This picture is human in vitro matured and fertilized embryo form unstimulated cyclic patient GV stage immature oocyte was culutred for 24 hours in maturation medium, after maturation, ICSI was performed and culture for 48 hours after fertilization. 17 September 2004
6 cell embryo from GV oocyte
This picture is human in vitro matured and fertilized embryo form unstimulated cyclic patient GV stage immature oocyte was culutred for 24 hours in maturation medium, after maturation, ICSI was performed and culture for 48 hours after fertilization. 17 September 2004
