Parece que no estamos tan lejos.
El problema fundamentalmente es, según los médicos, ético e inmunológico.
Sin embargo, es posible hacer un transplante de un tejido ovárico, permitiendo la reproducción.
En este sentido, estuve hoy leyendo un artículo de Paul de Sutter, médico Belga, especialista en asuntos reproductivos, cuyos datos cito a continuación para los que hablen inglés, y transcribo parcialmente.
Ovarian tissue banking probably has the most potential for the future and is already being used for women who undergo chemo- or radiotherapy for a malignant disease. Ovarian tissue banking requires no hormonal stimulation nor IVF, and is technically as easy as sperm freezing. Through means of a laparoscopy ovarian tissue can be removed, and the ovaries retain usable follicles even after hormonal therapy (Van den Broecke et al., 2000), which implies that removal of ovarian tissue can well be performed at the time of oophorectomy.
Ovarian tissue banking would also require donor spermatozoa and a recipient uterus of a future female partner or a surrogate mother in case of a male partner. The problem of ovarian tissue banking is not the freezing but the question of what to do with the tissue after thawing. One has the option to graft the ovarian tissue into the patient himself (Shaw et al., 2000) (of course this is not an option for transsexual men), in another patient (leading to possible problems of immune rejection) or in another animal (such as the mouse, but here may arise some serious ethical objections). In these three scenarios follicular growth and ovulation should still be induced (Oktay and Karlikaya, 2000) and IVF would be needed to obtain fertilization and pregnancy. As another possibility, in-vitro culture of the tissue fragments, with follicular growth and oocyte maturation in vitro still seems to lead to poor results so far (Smitz and Cortvrindt, 1999) and intermediate approaches are being explored, combining grafting and in-vitro maturation (Liu et al., 2000). So, although ovarian tissue banking seems to be the option to choose, much research will still be needed to bring this in practice for transsexual men.
http://www.annelawrence.com/grrepro.html
Tamara
<i>"En orden descendiente y ascendiente de intensidad, las pasiones se subliman en poesía, para convertirse de nuevo en pasión ardiente.
Mientras más servilmente desapasionada más inutilmente esencial". </i>