Human eggs ‘rejuvenated’ in an advance that could boost IVF success rates

Exclusive: Research suggests supplementing eggs with a key protein reduces age-related defects, raising hopes of improved IVF for older women

• Could egg defect breakthrough help stop the IVF rollercoaster?

Scientists claim to have rejuvenated" human eggs for the first time in an advance that they predict could revolutionise IVF success rates for older women.

The groundbreaking research suggests that an age-related defect that causes genetic errors in embryos could be reversed by supplementing eggs with a crucial protein. When eggs donated by fertility patients were given microinjections of the protein, they were almost half as likely to show the defect compared with untreated eggs.