Introduction Each adult has about 5 liters of blood, accounting for about 8% of its total weight. The use of blood donation by blood transfusion is a phenomenon in the 20th century and has become a necessity for medical treatment for many years. Approximately 2 million units of blood transfusions are taking place each year in the UK, and erythrocytes are much more commonly imported blood products. There are many transfusion fields such as severe injury, illness, surgery, birth and there are red blood cell conditions, usually severe anemia and blood loss.
Erythrocytes contain a special protein called hemoglobin (Hb). It carries oxygen from the lungs to various parts of the body. Hemoglobin is produced in bone marrow. This chemical is the color of red blood cells. The major hemoglobin in normal erythrocytes is hemoglobin A (HbA). A person with sickle cell disease has sickle hemoglobin (HbS) (generally 1). Normally red blood cells survive about 120 days before new cell exchange, but sickle cells only survive for about 16 days.
Sickle cell anemia is a blood disorder affecting erythrocytes. Normal red blood cells are round. In people with sickle cell anemia, substances in hemoglobin - erythrocytes - become incomplete, changing the shape of erythrocytes. Defective hemoglobin called hemoglobin S (HgbS) replaces normal hemoglobin called hemoglobin A (HgbA). As time goes on, red blood cells become hard, shaped like crescent shaped satellites and sickles. In the United States, the disease is most common among African Americans (about 1 in 400 African Americans) and Caribbean Hispanics (1 in 1,000 to 1,400 Hispanics). The disease is seen all over the world in the Arab, Greek, Italian, Sardinian, Turkish, Maltese, South Asian breeds.
Sickle cell disease (SCD) is a group of hereditary erythroid diseases. If you suffer from SCD, your hemoglobin will have problems. Hemoglobin is a protein in erythrocytes that carries oxygen into the body. Together with SCD, hemoglobin forms a hard rod in red blood cells. This changes the shape of red blood cells. The cells should be disk shaped, but this turns them into a crescent shape or a sickle shape. Sickle cell is inflexible and does not easily deform. Many of them burst when you pass through your blood vessels. Sickle cell usually lasts only 10 to 20 days and does not last for 90 to 120 days as usual. Your body may not be able to make enough new cells to replace your lost cells. Therefore, you may not have enough red blood cells. This is a condition called anemia, it can make you feel tired