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Rapidly-freezing Sperm Increases IVF Hope

by VR Sreeraman on September 13, 2010 at 4:39 PM
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 Rapidly-freezing Sperm Increases IVF Hope

Scientists have apparently found a new technique for rapidly freezing sperm that could be a fresh hope to couples undergoing IVF.

Experts have discovered that fast-freezing sperm preserves far more of its motility than present slow-freezing method, reports the Independent.

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They expect that the technique could help men with low sperm counts as well as those having their sperm frozen before undergoing cancer treatment.

And men who are HIV-positive could have their sperm safely frozen in a way that dramatically cuts the risk of disease for future children.

The experts from Chile and Germany said that slow-freezing techniques have several drawbacks, and retain only about 30 per cent to 40 per cent of sperm activity.
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However, rapid freezing, also known as vitrification, allows that figure to rise to almost 80 per cent.

Vitrification is already used to quick-freeze eggs and embryos with success, allowing spare ones to be used in IVF at a later date.

The findings will be presented at the World Congress of Fertility and Sterility in Munich.

Source: ANI
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