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Encyclopedia > Cord blood

Umbilical cord blood is human blood from the placenta and umbilical cord that is rich in hematopoietic stem cells. Cord blood is collected after the umbilical cord has been detached from the newborn, and utilized as a source of stem cells for transplantation. Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... The placenta is an ephemeral (temporary) organ present in female placental vertebrates during gestation (pregnancy), but a placenta has evolved independently also in other animals as well, for instance scorpions and velvet worms. ... In placental mammals, the umbilical cord is a tube that connects a developing embryo or fetus to its placenta. ... Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ... Mouse embryonic stem cells with fluorescent marker. ... A human infant In basic English usage, an infant is defined as a child at the youngest stage of life, especially before they can walk or simply a child before the age of one. ...


Cord blood is stored by both public and private cord blood banks. Public cord blood banks store cord blood for the benefit of the general public, and most U.S. banks coordinate matching cord blood to patients through the National Marrow Donor Program (NMDP). Private cord blood banks are for-profit organizations that store cord blood for the exclusive use of the donor or donor's relatives. A cord blood bank is a place that stores umbilical cord blood for future use. ... The National Marrow Donor Program (NMDP) is a nonprofit organization based in Minneapolis, Minnesota, that operates the largest national registry of volunteer hematopoietic cell donors in the United States. ...


Public cord blood banking is strongly supported by the medical community. However, private cord blood banking is generally not recommended unless there is a family history of specific genetic diseases. Private banking is unlawful in France and Italy, and opposed by the European Group on Ethics in Science and New Technologies. See cord blood bank. A cord blood bank is a place that stores umbilical cord blood for future use. ...

Contents

Properties

Cord blood stem cells are more proliferate and have a higher chance of matching family members than stem cells from bone marrow. Fathers have a 25% chance of matching their child's cord blood stem cells. Siblings have a 25% chance of being a perfect cord blood match. Grays Anatomy illustration of cells in bone marrow. ...


Collection, storage and costs

Main article: cord blood bank

There are 2 main methods in cord blood collection from the umbilical vein; before the placenta is delivered (in utero) or after (ex utero.) A cord blood bank is a place that stores umbilical cord blood for future use. ...


With ex utero collection method, the cord blood is collected after the placenta is delivered and the umbilical cord is clamped off from the newborn. The placenta is placed in a sterile supporting structure with the umbilical cord hanging through the support. The cord blood is collected by gravity drainage yielding between 40-150 mL. Sterilization (or sterilisation) is the elimination of all transmissible agents (such as bacteria, prions and viruses) from a surface, a piece of equipment, food or biological culture medium. ...


A similar collection method is done for in utero except that the cord blood is collected after the baby has been delivered but before the delivery of the placenta.


Additional stem cells may be collected from the placenta via Placenta Cord Banking. After the health care provider draws the cord blood from the umbilical cord, the placenta is couriered to the stem cell laboratory where it is processed for additional stem cells. Placenta cord banking refers to the collection and storage of stem cells from the placenta, in addition to those found in cord blood, after the birth of a human baby. ...


After collection the cord blood units must be immediately shipped to a cord blood bank facility. At public cord blood banks, this blood is then analyzed for infectious agents and the tissue-type is determined. Cord blood is processed and depleted of red blood cells before being stored in liquid nitrogen for later use. A cord blood bank is a place that stores umbilical cord blood for future use. ... General Name, Symbol, Number Nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15 (VA), 2 , p Density 1. ...


New parents have the option of storing their newborn's cord blood at a private cord blood bank or donating it to a public cord blood bank. The cost of private cord blood banking is approximately $2000 for collection and approximately $125 per year for storage as of 2007. The donation of cord blood may not be available in all areas, however the opportunity to donate is becoming more available. Several local cord blood banks across the United States are now accepting donations from within their own states. The cord blood bank will not charge the donor for the donation, but the OB/GYN may still charge a collection fee of $100-$250, which is usually not covered by insurance. However, many OB/GYNs choose to donate their time. A cord blood bank is a place that stores umbilical cord blood for future use. ... The current version of the article or section is written like a magazine article instead of the formal tone expected of an encyclopedia. ... Health Insurance is a type of insurance whereby the insurer pays the medical costs of the insured if the insured becomes sick due to covered causes, or due to accidents. ...


"According to research in the Journal of Pediatric Hematology/Oncology (1997, 19:3, 183-187), the odds that a child will need to use his or her own stem cells by age twenty-one for current treatments are about 1:2,700, and the odds that a family member would need to use those cells are about 1:1,400." [1]


However, in May 2006, The World Marrow Donor Association's Policy Statement for the Utility of Autologous or Family Cord Blood Unit Storage stated that:


1) The use of autologous cord blood cells for the treatment of childhood leukemia is contra-indicated because pre-leukemic cells are present at birth. Autologous cord blood carries the same genetic defects as the donor and cannot be used to treat genetic diseases.


2) There is at present no known protocol where autologous cord blood stem cells are used in therapy.


3) If autologous stem cell therapies should become reality in the future, these protocols will probably rely on easily accessible stem cells.


http://www.parentsguidecordblood.com/content/media/m_pdf/WMDAPolicyStatement062006.pdf [2]



After the first sibling-donor cord blood transplant was performed in 1988, the National Institute of Health (NIH) awarded a grant to Dr. Pablo Rubinstein to develop the worlds first cord blood program at the New York Blood Center(NYBC)[3], in order to establish the inventory of non embryonal stem cell units necessary to provide unrelated, matched grafts for patients. The National Institutes of Health is an institution of the United States government which focuses on medical research. ... During the 1980s, Pablo Rubinstein, M.D. pioneered the freezing of umbilical cord blood or placental blood cells to use for unrelated donors to treat diseases like Leukemia[1] and genetic diseases such as Taysachs and Sickle Cell Anemia[2]. He pioneered and established an international cord blood banking system...


In 2005, University of Toronto researcher Peter Zandstra developed a method to increase the yield of cord blood stem cells to enable their use in treating adults as well as children.[4] The University of Toronto (U of T) is a coeducational public research university in Toronto, Ontario, Canada. ...


Usage

When cryopreserved cord blood is needed, it is thawed, washed of the cryoprotectant, and injected through a vein of the patient. This kind of treatment, where the stem cells are collected from another donor, is called allogeneic treatment. When the cells are collected from the same patient on whom they will be used, it is called autologous and when collected from identical individuals, it is referred to as syngenic. Xenogeneic transfer of cells (between different speies) is very underdeveloped and is said to have little research potential.[citation needed] Cryopreservation of plant shoots. ...


Diseases treated with cord blood

Beginning in the late 1980s, following a successful sibling-donor transplant, cord blood stem cells have been used to treat a number of blood and immune-system related genetic diseases, cancers, and disorders. Because of medical issues around using one's own cells, in nearly every instance the treatments are done using cells from another donor, with the vast majority being unrelated donors. The 1980s refers to the years from 1980 to 1989. ... A genetic disorder, or genetic disease is a disease caused, at least in part, by the genes of the person with the disease. ... Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ...


In 1993, Dr. Joanne Kurtzberg, of Duke University Medical Center, performed the first two successful unrelated donor cord blood transplants[5]; one of which cured acute lymphoblastic leukemia. This page is a candidate for speedy deletion because: it contains no encyclopedic content If you disagree with its speedy deletion, please explain why on its talk page or at Wikipedia:Speedy deletions. ...


The principal diseases and disorders currently treated are listed at the National Donor Marrow Program website.


Federal Efforts to Promote Cord Blood Usage and Research

In 2005, U.S. Rep. Chris Smith passed legislation to increase usuage and research into cord blood stem cells. Smith's “Stem Cell Therapeutic and Research Act of 2005” (P.L. 109-129), authorized $265 million for stem cell therapy, umbilical cord blood and bone marrow treatments. Chris Smith is the name of: Chris Smith (composer) (1879 – 1949), American composer and performer Chris Smith, Baron Smith of Finsbury (b. ...


The bill, which was signed into law by President George W. Bush in December of 2005, authorizes $79 million for the collection of cord blood stem cells with the goal of building the nation’s public umbilical cord blood supply by adding 150,000 new units to the current inventory. The intention of the law is to collect a genetically diverse cross-section of cord blood units in an effort to make matches available to 90 percent of patients in need. George Walker Bush (born July 6, 1946) is the 43rd and current President of the United States, inaugurated on January 20, 2001. ...


The law also created a national registry to match cord blood for those in need. All the cord blood banks participating in the inventory program will be linked into a search system that would allow transplant physicians to search for cord blood and bone marrow matches through a single access point. In September 2006, the National Marrow Donor Program (NMDP) was selected by the federal governemnt to perform these duties. The National Marrow Donor Program (NMDP) is a nonprofit organization based in Minneapolis, Minnesota, that operates the largest national registry of volunteer hematopoietic cell donors in the United States. ...


“The Stem Cell Therapeutic and Research Act of 2005” is not only aimed at increasing the medical utilization rate for cord blood stem cells, but is also aimed at increasing cord blood stem cell research. All cord blood collected and deemed unsuitable for transplant is required to be donated for research.


See also

A cord blood bank is a place that stores umbilical cord blood for future use. ... Mouse embryonic stem cells with fluorescent marker. ... A doula is a non-medical assistant in prenatal care, childbirth and during the postpartum period. ... In placental mammals, the umbilical cord is a tube that connects a developing embryo or fetus to its placenta. ... Placenta cord banking refers to the collection and storage of stem cells from the placenta, in addition to those found in cord blood, after the birth of a human baby. ...

References

  1. ^ Cbr Systems, Inc. (2006). Common Misconceptions About Cord Blood Banking. Cord Blood Registry. Retrieved on September 20, 2006.
  2. ^ World Marrow Donor Association (2006). Policy Statement for the Utility of Autologous or Family Cord Blood Unit Storage. World Marrow Donor Association. Retrieved on June 2, 2006.
  3. ^ NIH data
  4. ^ Raymer, Elizabeth (October 14, 2005). New strategy will boost cord blood stem cells. University of Toronto. Retrieved on September 20, 2006.
  5. ^ Dr. Kurtzberg Info

5. Cord Blood Donation September 20 is the 263rd day of the year (264th in leap years). ... For the Manfred Mann album, see 2006 (album). ... June 2 is the 153rd day of the year in the Gregorian calendar (154th in leap years), with 212 days remaining. ... For the Manfred Mann album, see 2006 (album). ... September 20 is the 263rd day of the year (264th in leap years). ... For the Manfred Mann album, see 2006 (album). ...


External links

General information

Free, public donation information

Diseases treated with cord blood


  Results from FactBites:
 
Cord Blood Solutions, LLC. - Collection and storage of umbilical cord blood stem cells for potential future use in ... (1853 words)
The privately stored cord blood is reserved for your family, while publicly donated cord blood goes into a public registry pool and may never be able to be retrieved specifically for your child.
The small amount of blood remaining in the placenta and umbilical cord, typically three to five fluid ounces, is drained and taken to a cord blood bank where the unit is processed and samples are sent for tests.
To be accredited, the cord blood banking company must have its laboratory and administrative procedures reviewed, inspected and validated regularly and their procedures must be compliant with the guidelines established by AABB for cord blood processing.
  More results at FactBites »


 
 

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