Lab-grown human embryo models spark calls for regulation

Several different labs around the world have released pre-print studies in the past seven days describing their research, which experts said should be treated with caution as the research has not yet been peer-reviewed.

The first announcement was last Wednesday, when Magdalena Zernicka-Goetz of Cambridge University and the California Institute of Technology described her team's work at the International Society for Stem Cell Research's annual meeting in Boston.On Thursday, the team of Jacob Hanna at the Weizmann Institute of Science in Israel published a pre-print study detailing their own work on stem cell-based human embryo models.

Both teams told AFP that their new studies had been accepted by prestigious peer-reviewed journals -- and that they had presented their work at conferences months before the recent media attention. Hanna rejected the idea that either team was"first", saying they had achieved quite different feats. But"the impact of both studies is immense", he added. "We should try to avoid unhealthy hype since this technology is at an early stage -- but already, new guidelines are going to be needed."Both labs said they had developed their embryo models for 14 days, the legal limit for growing human embryos in the lab in many countries.

پاکستان تازہ ترین خبریں, پاکستان عنوانات

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