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04-13-2007, 07:33 PM
Sperm made from human bone marrow (http://news.bbc.co.uk/2/hi/health/6547675.stm)
Scientists say they have successfully made immature sperm cells from human bone marrow samples.
If these can be grown into fully developed sperm, which the researchers hope to do within five years, they may be useful in fertility treatments.
But experts have warned the findings from the German study should be interpreted with caution at this very early stage.
And proposed new laws would ban their use in fertility treatments in the UK.
1) Stem cells isolated from bone marrow of male volunteers
2) In laboratory, stem cells cultured and identified. Some induced to become spermatological cells - which normally become sperm cells
3) Transplantation of cells into testicle :cringe: - so far performed in mice
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Wild. Apparently a stem cell from bone marrow has to come from a male. But the rub :cough: is that the cells need to be injected into :cringe: testes to culture.
Scientists say they have successfully made immature sperm cells from human bone marrow samples.
If these can be grown into fully developed sperm, which the researchers hope to do within five years, they may be useful in fertility treatments.
But experts have warned the findings from the German study should be interpreted with caution at this very early stage.
And proposed new laws would ban their use in fertility treatments in the UK.
1) Stem cells isolated from bone marrow of male volunteers
2) In laboratory, stem cells cultured and identified. Some induced to become spermatological cells - which normally become sperm cells
3) Transplantation of cells into testicle :cringe: - so far performed in mice
-------------------------------------------------------
Wild. Apparently a stem cell from bone marrow has to come from a male. But the rub :cough: is that the cells need to be injected into :cringe: testes to culture.