Glossary

Acute Chest Syndrome
This is a medical emergency when sickle cells block blood vessels in the lungs
Apheresis
Apheresis is the collection of blood-making stem cells using a machine that filters blood.
Blood-Making Stem Cells
The cells in your body that create red blood cells, white blood cells, and platelets.
Bone Marrow Transplant
Blood-making stems cells from a donor are given to someone with sickle cell disease.
Chemotherapy
Very strong medicine that prepares your body to get new blood-making stem cells during a bone marrow transplant or gene therapy.
Chronic Transfusion Therapy
Healthy red blood cells from a donor are given to someone with sickle cell disease. This is repeated every 3 or 4 weeks.
Fetal hemoglobin
Healthy red blood cells that you made before you were born (inside the womb).
Gene Therapy
Doctors change some genes (instructions) in the blood-making stems cells of someone with sickle cell disease.
Graft Rejection
After a bone marrow transplant, the body of the person who got the transplant attacks the donated stem cells.
Graft versus host disease
After a bone marrow transplant, the donor stem cells attack the body of the person who got the transplant.
Hemoglobin
Hemoglobin is a protein in red blood cells that carries oxygen.
Immunosuppression
After chemotherapy, people have a weakened immune system, and their body is unable to fight germs. This is also called being immunosuppressed.
Iron Overload
Having too much iron in your body can damage your liver, heart, pancreas, and other organs.
Medications
Medications for sickle cell disease include Hydroxyurea, L-Glutamine, Crizanlizumab (Adakveo), and Voxelotor (Oxbryta).
Veno-occlusive Disease
This problem happens when chemotherapy damages your liver (a part of your body that cleans your blood).