I guess i just wanted to point out that these stem cell grown parts will only be usefull to the one person whose original cells were used. Most embryonic stem cell research has been relatively unsuccessfull because they have been using fertilized embryos which have a different genetic make-up than the person intended to benefit from them, thus bringing up the issue of rejection inherent when doing a normal organ transplant or other such procedure. Adult stem cell research (such as nasal stem cells or bone marrow stem cells) has shown much more promise than embryonic stem cell research without the inherent moral arguments.
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I guess i just wanted to point out that these stem cell grown parts will only be usefull to the one person whose original cells were used. Most embryonic stem cell research has been relatively unsuccessfull because they have been using fertilized embryos which have a different genetic make-up than the person intended to benefit from them, thus bringing up the issue of rejection inherent when doing a normal organ transplant or other such procedure. Adult stem cell research (such as nasal stem cells or bone marrow stem cells) has shown much more promise than embryonic stem cell research without the inherent moral arguments.