New hope found to aid IVF couples
A new technique for rapidly freezing sperm could offer hope to couples undergoing IVF, researchers say. Experts found that fast-freezing sperm preserves far more of its motility than present slow-freezing method.
They hope 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 study, from experts in Chile and Germany, will be presented at the World Congress of Fertility and Sterility in Munich. Slow-freezing techniques have several drawbacks, and retain only about 30 per cent to 40 per cent of sperm activity. But 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.
- 1 Woman accidentally shoots herself in the head while posing for a selfie
- 2 Isis burns woman alive for refusing to engage in 'extreme' sex act, UN says
- 3 Puerto Rico, island of lost dreams: People are leaving the debt-hit territory in droves as near neighbour Cuba's star rises
- 4 Female Muay Thai champion hustles coaches to give them a beating
- 5 16-year-old girl beaten and burned alive by lynch mob in Rio Bravo, Guatemala
Isis burns woman alive for refusing to engage in 'extreme' sex act, UN says
Purity balls: Girls in the US making virginity pledges as fathers vow to 'protect purity'
Female Muay Thai champion hustles coaches to give them a beating
Puerto Rico, island of lost dreams: People are leaving the debt-hit territory in droves as near neighbour Cuba's star rises
16-year-old girl beaten and burned alive by lynch mob in Rio Bravo, Guatemala
As a white man, I'm surprised more women aren't tweeting the hashtag #KillAllWhiteMen
Scotland may have to leave the EU even if it votes to stay in, David Cameron confirms
The day that Britain resigned as a global power
Almost a third of school pupils believe 'Muslims are taking over our country', study claims
SNP fury as HS2 finds 'no business case' for taking fast train service to Scotland
Gay marriage 'Bert and Ernie' cake bakery found guilty of discrimination in Northern Ireland
£40-50K: Guru Careers: We are seeking an experienced Software / C# Developer w...
£35 - 40k + Benefits: Guru Careers: We are seeking a Software Developer (JavaS...
£18000 - £23000 per annum + Commission: SThree: As a Trainee Recruitment Consu...