A report on Blood transfusion, Red blood cell and Malaria
Early transfusions used whole blood, but modern medical practice commonly uses only components of the blood, such as red blood cells, white blood cells, plasma, clotting factors and platelets.
- Blood transfusionPacked red blood cells (pRBC) are red blood cells that have been donated, processed, and stored in a blood bank for blood transfusion.
- Red blood cellThe World Health Organization (WHO) recommends that all donated blood be tested for transfusion-transmissible infections. These include HIV, hepatitis B, hepatitis C, Treponema pallidum (syphilis) and, where relevant, other infections that pose a risk to the safety of the blood supply, such as Trypanosoma cruzi (Chagas disease) and PlasmodiumPlasmodium species (malaria). According to the WHO, 25 countries are not able to screen all donated blood for one or more of: HIV, hepatitis B, hepatitis C, or syphilis. One of the main reasons for this is because testing kits are not always available. However the prevalence of transfusion-transmitted infections is much higher in low income countries compared to middle and high income countries.
- Blood transfusionIn the blood, the merozoites rapidly invade individual red blood cells, replicating over 24–72 hours to form 16–32 new merozoites.
- MalariaLipid rafts that have been implicated in cell signaling events in nonerythroid cells have been shown in erythroid cells to mediate β2-adregenic receptor signaling and increase cAMP levels, and thus regulating entry of malarial parasites into normal red cells.
- Red blood cellMalaria parasites can also be transmitted by blood transfusions, although this is rare.
- Malaria2 related topics with Alpha
Anemia
1 linksAnemia or anaemia (British English) is a blood disorder in which the blood has a reduced ability to carry oxygen due to a lower than normal number of red blood cells, or a reduction in the amount of hemoglobin.
Preoperative anemia can increase the risk of needing a blood transfusion following surgery.
Causes of increased breakdown include genetic disorders such as sickle cell anemia, infections such as malaria, and certain autoimmune diseases.
Thalassemia
1 linksThalassemias are inherited blood disorders characterized by decreased hemoglobin production.
Thalassemias are inherited blood disorders characterized by decreased hemoglobin production.
Often there is mild to severe anemia (low red blood cells or hemoglobin).
Treatment for those with more severe disease often includes regular blood transfusions, iron chelation, and folic acid.
Those who have minor degrees of thalassemia, similar to those with sickle-cell trait, have some protection against malaria, explaining why they are more common in regions of the world where malaria exists.