What is Cord Blood?
After a baby is born and the
umbilical cord is cut, some blood remains in the blood vessels of the
placenta and the portion of the umbilical cord that remains attached to
it. After birth, the baby no longer needs this extra blood. This blood
is called placental blood or umbilical cord blood: "cord blood" for
short.
Cord blood contains all the
normal elements of blood - red blood cells, white blood cells, platelets
and plasma. But it is also rich in hematopoietic (blood-forming) stem
cells, similar to those found in bone marrow. This is why cord blood
can be used for transplantation as an alternative to bone marrow.
Cord blood is being used
increasingly on an experimental basis as a source of stem cells, as an
alternative to bone marrow. Most cord blood transplants have been
performed in patients with blood and immune system diseases. Cord Blood
transplants have also been performed for patients with genetic or
metabolic diseases. More than 80 different diseases have been treated
to date with unrelated cord blood transplants.
List of diseases that can be treated with cord blood :
Leukemias
Acute Lymphoblastic Leukemi
Acute Myelogenous Leukemia
Acute Biphenotypic Leukemia
Chronic Lymphocytic Leukemi
Chronic Myelogenous Leukemi
Chronic Myelomonocytic Leukemia
Juvenile Chronic Myelogenous Leukemi
Juvenile Mono-myelocytic Leukemi
Leukemia, Unspecifie
Lymphomas
Non-Hodgkin's Lymphom
Hodgkin's Diseas
Epstein-Barr Virus / Lymphoproliferative Disease
Autoimmune Lymphoproliferative diseas
Lymphoma, unspecified
Myelodysplasias
Myelodysplastic Syndrome
Myelofibrosis
Bone Marrow Failure Syndromes
Amegakaryocytic Thrombocytopenia
Diamond-Blackfan Anemia
Dyskeratosis Congenita
Fanconi's Anemia
Parxysmal Nocturnal Hemoglobinuria
Reticular Dysgenesis
Severe Aplastic Anemia, Unspecified
Shwachman-Diamond Syndrome
Sideroblastic Anemia
Hemoglobinopathies
Sickle Cell Disease
Thalassemia
Immune Deficiencies
Common Variable Immune Deficiency
Congenital Immune Deficiency
DiGeorge syndrome
Griscelli Syndrome
Lymphocyte Adhesion Disease
Nezelof Syndrome
Omenn Syndrome
Severe Combined Immune Deficiency (SCID)
Wiskott-Aldrich Syndrome
X-linked Hyper-IgM Syndrome
X-linked Immune Dysregulation Polyendocrine Enteropathy
Histiocytosis
Familial Erythrophagocytic Lymphohistiocytosis
Hemophagocytic Lymphohistiocytosis
Hemophagocytic Syndrome
Histiocytosis
Langerhans Cell Histiocytosis (Histiocytosis-X)
X-Linked Lymphoproliferative Disease
Metabolic/Storage Diseases
MPS, not specified
Hurler Disease (MPS type IH)
Hurler-Scheie Disease (MPS type IS)
Hunter's Syndrome (MPS type II)
Sanfilippo Disease (MPS type III)
Morquio Syndrome (MPS type IV)
Maroteaux-Lamy Syndrome (MPS type VI)
Adrenoleukodystrophy
Alpha-mannosidosis
Amyloidosis
Aspartylglucosaminuria
Austin's Disease (Multiple Sulfatase Deficiency)
Fucosidosis
Gangliosidosis
Gaucher's Disease
I-cell Disease (Inclusion Cell Disease)
Infantile Ceroid Lipofucoscinosis
Krabbe Disease
Lesch-Nyhan Syndrome
Metachromatic Leukodystrophy
Neiman-Pick Disease
Osteopetrosis
Sandhoff Disease
Sialidosis
Tay Sach Disease
Wolman Disease
Neutrophil Disorders
Chediak-Higashi Syndrome
Chronic Granulomatous Disease (CGD)
Congenital Neutropenia
Kostmann Syndrome
Platelet Disorders
Congenital Thrombocytopenia
Glanzmann's Thrombasthenia
Other Malignancies
Breast Cancer
Multiple Myeloma (Plasma Cell Disorder)
Neuroblastoma
Scientists are investigating the possibility that stem cells in cord
blood may be able to replace cells of other tissues such as nerve or
heart cells. Whether cord blood can be used to treat other kinds of
diseases will be learned from this research.
Birth is a one-time opportunity to help society by donating your baby's cord blood.
Cord blood contains stem cells that can save lives. Patients requiring a stem cell transplant can receive stem cells from one of three sources: bone marrow, circulating blood, or cord blood. The first two exist in all healthy adults, but cord blood can only be harvested and stored at birth. It is much easier to match transplant patients with cord blood than with the two sources of adult donors. This is important for patients who come from minority or mixed race backgrounds. Hence, diverse cord blood donations to public banks can save many lives right now.
Cord blood contains stem cells that can save lives. Patients requiring a stem cell transplant can receive stem cells from one of three sources: bone marrow, circulating blood, or cord blood. The first two exist in all healthy adults, but cord blood can only be harvested and stored at birth. It is much easier to match transplant patients with cord blood than with the two sources of adult donors. This is important for patients who come from minority or mixed race backgrounds. Hence, diverse cord blood donations to public banks can save many lives right now.
Birth is also a one-time opportunity to store your baby's cord blood for your own family.
Transplant patients recover better when they receive stem cells from a related donor, instead of an unrelated donor. If a first degree relative of your baby needs a stem cell transplant, the baby's cord blood stem cells could be a suitable match. Plus, there are now emerging therapies in which children use their own cord blood stem cells to help the body repair itself. In the future, children whose parents saved their cord blood will have better access to those treatments.
There is virtually no reason not to save your child's cord blood.
Some people are concerned that the clamping of the umbilical cord should be delayed so that the baby can receive the blood in the cord. Studies have shown that babies whose cord clamping was delayed by two minutes have slightly less anemia up to six months after birth. However, there is no benefit to waiting more than two minutes to clamp the cord and collect the cord blood.
How donor-patient matching is determined
Transplant patients recover better when they receive stem cells from a related donor, instead of an unrelated donor. If a first degree relative of your baby needs a stem cell transplant, the baby's cord blood stem cells could be a suitable match. Plus, there are now emerging therapies in which children use their own cord blood stem cells to help the body repair itself. In the future, children whose parents saved their cord blood will have better access to those treatments.
There is virtually no reason not to save your child's cord blood.
Some people are concerned that the clamping of the umbilical cord should be delayed so that the baby can receive the blood in the cord. Studies have shown that babies whose cord clamping was delayed by two minutes have slightly less anemia up to six months after birth. However, there is no benefit to waiting more than two minutes to clamp the cord and collect the cord blood.
How donor-patient matching is determined
-
- We all get half of our genetic material from each parent.
Only a few genes, those that determine HLA type, are important to match a patient with a donor. -
- The genes that are important for matching tend to be inherited as a group (called a haplotype).
As a result, two children of the same parents have a 25% chance of being a perfect match to each other. -
- Genetic variations are also grouped by race.
Hence, a patient has a better chance of finding a donor among his or her own racial group.
1 komentar:
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