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Investigation of the ability of antibodies from vasectomized men in binding to Y-spermatozoa as a possible explanation of the lower sex ratio observed after microinsemination using epididymal sperm from vasectomized men.
Time Perspective: Prospective
Fertility Clinic, Odense University Hospital
Odense University Hospital
Published on BioPortfolio: 2014-11-05T01:38:22-0500
Our aim is to evaluate the potential of a new laboratory method that measure sperm capacitation to predict fertilization of oocytes in patients that undergo IVF treatments
Immotile sperm is a rather frequent problem encountered in IVF patients. Treatment is usually based on inducing motility with pentoxyphylline (PXN) followed by ICSI. However, fertilization...
The primary objective of this study is to determine if there is a difference in in vitro fertilization (IVF) with intracytoplasmic sperm injection (ICSI) outcomes when using testicular spe...
Does the level of statistic oxidation reduction potential (sORP) affects the choice of sperm source or sperm selection method used during ICSI.
Women over 35 years old are likely to suffer from impaired oocyte repair capacity. Teratozoospermia is a condition reflects morphological affection of sperm. These spermatozoa would add an...
The epididymis is necessary for post-testicular sperm maturation as it provides the milieu required for spermatozoa to gain the ability for progressive movement and fertilization. In the epididymis th...
Sex preselection has always generated great interest among livestock producers. Among the prevalent sperm sorting methods, there is much evidence that sex sorting has a negative effect on sperm qualit...
The binding of exogenous DNA to sperm is a key process for sperm-mediated gene transfer; however, the underlying molecular mechanisms have yet to be elucidated. In the present study, we aimed to ident...
Sperm are the major cells in semen. Human sperm possess a number of HIV-1 gp120 binding ligands including sulfogalactosylglycerolipid (SGG). However, the mechanisms of how sperm capture HIV-1 onto the...
The endogenous steroid hormone ouabain induces capacitation of bull sperm acting through its receptor Na/K-ATPase on the sperm plasma membrane. Progesterone (P4) is believed to act through the sperm m...
The quality of SEMEN, an indicator of male fertility, can be determined by semen volume, pH, sperm concentration (SPERM COUNT), total sperm number, sperm viability, sperm vigor (SPERM MOTILITY), normal sperm morphology, ACROSOME integrity, and the concentration of WHITE BLOOD CELLS.
An assisted fertilization technique consisting of the microinjection of a single viable sperm into an extracted ovum. It is used principally to overcome low sperm count, low sperm motility, inability of sperm to penetrate the egg, or other conditions related to male infertility (INFERTILITY, MALE).
Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION.
The structural and functional changes by which SPERMATOZOA become capable of oocyte FERTILIZATION. It normally requires exposing the sperm to the female genital tract for a period of time to bring about increased SPERM MOTILITY and the ACROSOME REACTION before fertilization in the FALLOPIAN TUBES can take place.
The maturing process of SPERMATOZOA after leaving the testicular SEMINIFEROUS TUBULES. Maturation in SPERM MOTILITY and FERTILITY takes place in the EPIDIDYMIS as the sperm migrate from caput epididymis to cauda epididymis.