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Summary
Mitochondria are the central energy production of our cells. Now a Massachusetts company believes that these microscopic cylinders are also essential to conceive a baby and several physician groups outside the United States are testing this hypothesis controversial in women with fertility problems. More than 10 women are pregnant via exclusive in vitro fertilization (IVF) method of the company, adding a bolus of mitochondria associated with a woman in his mature egg. Meanwhile, the Food and Drug Administration (FDA) has set up roadblocks in front of a fertility specialist and stem cell biologist who want to clinically test a different strategy IVF: swapping the mitochondria of a woman transferring chromosomes from its egg into an egg of another woman. The technique, called mitochondrial replacement therapy, was simply legalized in the UK to prevent rare genetic diseases. FDA says it needs more data before allowing the work to proceed. A central question for both in vitro fertilization techniques is whether defective mitochondria or aging actually lead to infertility, and whether the correction of this problem restores health to eggs.
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