Una speranza per l'infertilità maschile arriva da un gruppo di ricercatori di una società di biotecnologia francese, che sono riusciti a produrre spermatozoi in vitro. L'operazione rappresenta - secondo il loro annuncio - "una prima mondiale". Gli scienziati hanno reso noto la novità prima della pubblicazione su una rivista scientifica.
Gli spermatozoi, che appaiono completamente formati, sono stati ottenuti a partire da cellule di uomini sterili prelevate nella zona dei testicoli. Una volta formato in provetta, a partire dai tessuti della persona interessata, lo spermatozoo sarebbe pronto per una fecondazione in vitro.
Attualmente, gli uomini sterili devono ricorrere alla procreazione medicalmente assistita utilizzando sperma proveniente da donatori anonimi.
ATS/M.Ang.
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