Periovulatorisch kommt es zu einer Muttermundsöffnung auf 1 - 2 cm und zu einer Verflüssigung des Zervixschleims. Hierfür könnte der vascular endothelial growth factor (VEGF), der angiogenetisch wirkt und die Gefäßpermeabilität erhöht, eine…
Ovarian stimulation with gonadotropins (GN) during human in vitro fertilization and embryo transfer (IVF/ET) therapy alters the ovarian steroid output, especially that of progesterone. As a consequence, endometrial transformation is advance…
Endocrine and paracrine controls regulate the endometrium during the luteal phase of the cycle to permit implantation. Part of this differentiation process is the production of a specific secretion which fills the intrauterine cavity and gl…
There is evidence from previous studies that progesterone antagonists (antigestagens) modify estrogen responses at endometrial and myometrial levels without having affinity to the estrogen receptor (ER). The purpose of the present study was…
We present in this study our first experience with intravaginal culture (IVC) of human oocytes as a modified technique for in-vitro fertilization. Up to 4 oocytes and washed, pre-incubated spermatozoa (final concentration: 0.1-0.2 x 10(5)/m…