Search results
Results from the WOW.Com Content Network
Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders that are typically inherited. [2] The most common type is known as sickle cell anemia. [2] Sickle cell anemia results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. [2]
The underlying cause of sickle cell anemia is the synthesis of aberrant hemoglobin, which attaches to other aberrant hemoglobin molecules inside the red blood cell to undergo rigid deformation. [18] Sickle cell anemia symptoms usually appear around the age of six months. They can change over time and differ from person to person.
Behavior therapy and cognitive behavioral therapy can help children improve their condition and manage the stress associated with a chronic illness. Behavior therapy in the setting of chronic illnesses aims to change problematic learned behaviors using classical conditioning and operant techniques. Some examples of behavioral therapy for ...
A sickle cell health crisis can escalate into life-threatening complications, but patients still struggle to get seen quickly in emergency rooms and also to get pain medicine.
Red cell alloimmunisation is common in people with sickle cell disease who receive transfusions in Europe and North America. [4] This is because there are ethnic differences in the frequencies of blood group antigens. [4] Blood donors are usually Caucasian whereas the blood transfusion recipients usually have an African or Afro-Caribbean ancestry.
A vaso-occlusive crisis is a common painful complication of sickle cell anemia in adolescents and adults. [1] [2] It is a form of sickle cell crisis.Sickle cell anemia – most common in those of African, Hispanic, and Mediterranean origin – leads to sickle cell crisis when the circulation of blood vessels is obstructed by sickled red blood cells, causing ischemic injuries.
The sickle cell trait provides a survival advantage against malaria fatality over people with normal hemoglobin in regions where malaria is endemic. The trait is known to cause significantly fewer deaths due to malaria, especially when Plasmodium falciparum is the causative organism.
It is possible for a person to have both the gene for hemoglobin S (the form associated with sickle cell anemia) and the gene for hemoglobin C; this state is called hemoglobin SC disease, and is generally more severe than hemoglobin C disease, but milder than sickle cell anemia. [2]