'Sperm magnet' breakthrough may aid fertility process
America scientists have made a breakthrough in fertility treatment, after discovering a 'sperm magnet' that assists with artificial insemination. The new technique allows the extraction of healthy sperm while rejecting those with genetic defects, Reuters reports.
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Current process might pose genetic risks The current process whereby sperm is injected directly into an egg using a process called intracytoplasmic sperm injection (ICSI), can be risky. During normal fertilisation, only the strongest sperm will get the chance to fertilise the egg. During ICSI, a genetically damaged sperm could be chosen - going against the natural selection process.
According to the report, lead researcher Professor Gabor Huszar from Yale University believes that this method could pass on chromosome abnormalities. "This is all speculation, but what we do know is that using this new sperm selection method we have a chance of eliminating these concerns," Huszar told the European Society for Human Reproduction and Embryology.
Attracting the right kind of sperm Huszar and his research team at Yale found a close correlation between immature sperm and the frequency of aneuploidies - where sperm have abnormal numbers of each chromosome.
The researchers found that a sperm protein called HspA2 is involved in binding sperm to a molecule in the female reproductive tract called hyaluronic acid, according to the report. The sperm attracted to the acid tended to be more mature with fewer genetic defects.
Using hyaluronic acid as a kind of 'mature sperm magnet' they could attract more mature sperm with fewer chromosome problems.
The researchers found that they could reduce the chromosome-abnormal sperm cells by four or five times using this method. – (Health24)
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