New Mexico has state legislation around cord blood education that only mandates/encourages physicians to educate expectant parents about public donation of cord blood. The New Mexico bill was enacted 19 Mar. 2005 and became effective 1 Jan. 2006.
- Processing: How is cord blood processed before storage?
The three main components of cord blood, like any blood collection, can be separated by weight: the heaviest layer is the red blood cells (RBC), the lightest is the plasma (a clear white liquid), and in the middle is a pinkish layer called the "buffy coat" which contains the white blood cells (WBC), including stem cells. When banks process the cord blood, the final separated component that goes into storage is the buffy coat, even though only about 1% of the cells are actually stem cells. There is no procedure to separate out the stem cells alone.
The vast majority of blood processing methods rely on the different density of the three main blood components. They can be separated by sedimentation, or by centrifuge, or by a combination of the two techniques. The procedure can be performed manually by trained technicians or by automated machine.
- How does the Institute of Medicine influence cord blood education?
- Congress commissioned an Institute of Medicine study on the ideal structure of a national cord blood
program. Based on the IoM report, Congress passed the Stem Cell Therapeutic and Research Act of 2005 that was signed into law 20 Dec. 2005. The key language regarding education is the requirement: Information provided to the maternal donor regard(s) all of her medically appropriate cord blood options. ie: Education of expectant parents and Informed Consent of maternal donors should cover all options, not just donation.
- Once we have stored cord blood for our family, how long should we keep it?
- Indefinitely. From an economic perspective, it does not make sense to invest in the up-front processing fee and pay for years of annual storage, and then throw out the investment. That would be like buying life insurance and then cancelling it because you have not died yet. Especially given that the probability of some one in the immediate family needing a transplant increases with age. Even if the cord blood collection was small, and the child becomes too large to use it for a transplant, it could still be enough cells for a regenerative medicine therapy. The science of cryobiology tells us that cells which are cryogenically preserved remain viable for decades. It has been confirmed that cord blood stem cells were still viable after being frozen 23+ years.
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