Scientists have the first time grown human eggs in a laboratory from the earliest stages in ovarian tissue all the way to full maturity. Publishing their result in the journal Molecular Human Reproduction on Friday, scientists from Britain and the United States said it could one day help in developing regenerative medicine therapies and new infertility treatments. A magnification of a lab-grown fully matured human egg ready for fertilization. Doctor David Albertini/University of Edinburgh , In previous studies, scientists had developed mouse eggs in a laboratory to the stage where they produced live offspring, and had also matured human egg  from a relatively late stage of development. [Reuters]