Scientists Claim to Have Created Human Sperm in Laboratory

Scientists in Newcastle claim to have created human sperm in the laboratory in what they say is a links of london world first.

The researchers believe the work could eventually help men with fertility problems to father a child.

But other experts say they are not convinced that fully developed sperm have been created.

Writing in the journal Stem Cells and Development, the Newcastle team say it will be at least five years before the technique is perfected.

They began with stem cell links of london charms lines derived from human embryos donated following IVF treatment.

The stem cells had been removed when the embryo was a few days old and were stored in tanks of liquid nitrogen.

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The stem cells were brought links of london sweetie to body temperature and put in a chemical mixture to encourage them to grow. They were “tagged” with a genetic marker which enabled the scientists to identify and separate so-called “germline” stem cells from which eggs and sperm are developed.

The male, XY stem cells underwent the crucial process of “meiosis” - halving the number of links of london bracelet chromosomes. The process over creating and developing the sperm took four to six weeks.

Understanding sperm

The Newcastle team say the sperm were fully mature, mobile sperm and they have produced a video to back up the research.

Professor Karim Nayernia at Newcastle University and the NorthEast England Stem Cell Institute says: “This is an important development as it will allow researchers to study in detail how sperm forms and lead to a better understanding of infertility in men - why it happens and what is causing it.

“This understanding could links of london jewellery help us develop new ways to help couples suffering infertility so they can have a child which is genetically their own.

“It will also allow scientists to study how cells involved in reproduction are affected by toxins, for example, why young boys with leukaemia who undergo chemotherapy can become infertile for life - and possibly lead us to a solution.”

However, Professor Nayernia links of london stressed the researchers had no intention of “producing human life in a dish”.