Viagra (Sildenafil Citrate)

Some use it to treat impotence and do not think about the later formation of a family. Young men that use it for entertainment may someday try to start a normal family and fail. The research have shown that in infertility clinics 42% of men use Viagra to help men in preparing a sperm analysis.

Glenn doe also underline that at the current moment it is early to make a sure conclusion by if the results of the study are proven then in such clinics the use of Viagra may very well be banned.

Plasma Levels:
The researchers have taken 45 samples of semen fluid from patients that are being treated in a infertility clinic, half of them were treated with Viagra and the others were in a control group. They have used the concentration equivalent to the levels of Viagra that are presented when taking a 100 mg pill.

After 15 minutes after use the mobility of sperm has increased and lasted 135 minutes. The studies that were conducted 2 hours later have shown that the levels of "reactive" sperm cell are 79% higher then in the control group.

This reaction is a process during which in the head of the sperm certain enzymes are being produced that are needed to penetrate and inseminate the ovicell.

The new studies have proven the earlier research that was conducted on the mice. Viagra has been given to male mice and then paired with female mice. The group has produced 40% less embryo then the control group. In laboratory conditions the chances of such embryo to live for 5 days until the start of the cell phase were also decreased.

Marker molecules:
Glenn also has told that Viagra starts a acrosome reaction, increasing the mobility of calcium in the cell. IT also slows the formation of an enzyme called phosphodiesterase that inhibits the marker molecules that are used in the energetic process. "By slowing the energy outbreak, Viagra increases the energetic level of the cells leading to their increased mobility," - explains David.

John Din, the general secretary of European society of sexual medicine warns that experiments conducted in a laboratory sometimes do not correlate with the actual processes that take place in the organism.

John Din also points that sperm cells are very sensitive to excretion form the natural habitants."In childless couples and in many other families during 5 years of use of Viagra negative effect on the reproductive capabilities has not been registered." - stated John on BBC.

In spite of these words Glenn is sure that during the research the sperm cells have been subjected to the same concentration of Viagra, that affect the organism of the men that use it. At the current time researchers are studying the effect of Viagra in the men sperm cells. Increase in sperm mobility has been registered in 17 of them.