Sat,07 April 2012
Men with no sperm in their ejaculate—a condition known as azoospermia—may no longer need invasive procedures to determine if they have sperm in their testes according to a new study published in Human Reproduction. “Trust me when I say that men would rather have a non-invasive scan done than have a surgical procedure to determine whether or not they might be able to be fathers”.
Instead, the study found that MR Spectroscopy—a simple metabolic scan that combines the use of H Spectros
Sun,05 February 2012
The British newspaper La Repubblica described the research of the scientists who created the synthetic sperm. This is the first artificial sperm. Scientists got it from embryonic stem cells male. With this discovery, can now be a new way to fertilize an egg.
But for now, at this time, sperm will not be used to fertilize eggs. Since cells grown in artificial conditions, are not yet fully understood. It is unknown how this may affect the change of DNA. There is no probability that the result of this fertilization will be born a healthy child, free of defects.
The level of safety ob
Sun,29 January 2012
American researchers have developed a method for the selection of sperm with the best of DNA for use in artificial fertilization.
Until recently it was believed that the main parameters of sperm quality are the number of sperm and their mobility. However, it seems that it's not all: the important role also played their ability to bind to the female egg. In nature, the egg itself determines the best sperm, but in the course of in vitro fertilization, when used only a few sperm cells, it remains unknown whether they are capable of fertilization
Wed,09 November 2011
For most men, exercise appears to have no relationship to either the quality or quantity of sperm, according to U.S. researchers. But they found one exception: Men who biked for at least five hours per week had fewer and less active sperm than couch potatoes.
"It is likely that most forms of exercise have no effect on semen quality and that only certain subtypes of activity, and/or those performed at higher intensity levels, have an effect," study author Dr. Lauren Wise at Boston University told Reuters Health in an e-mail.
Previous research has suggested compe |
