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Sickle cell anemia research paper
Sickle cell anemia research paper
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Sickle-cell anemia is a genetic disorder that makes your body produce red blood cells that are abnormal in shape. This disease is also widely known as hemoglobin SS disease. Unlike normal red blood cells, sickle cells are rigid and tenacious. Due to their shape and rigidness, they can block blood flow. In turn, this could cause organ damage to the body. Sickle cells are also fragile and die very easily due to the fact sickle cells have a lifespan of twenty days instead of the normal one hundred and twenty days for normal red blood cells.This causes the body to have a lower blood cell count, hence the name anemia in sickle cell anemia.
Hemoglobin SS happens because of a mutation in chromosome 11. Chromosome 11 contains the gene of hemoglobin-Beta. Hemoglobin (HBB) transports oxygen to your body parts like your lungs. Hemoglobin contains 2 alpha hemoglobin and 2 beta hemoglobin chains. Sickle cell anemia results from a point mutation. There is a change in the sixth amino acid in the beta hemoglobin chain from GLU to VAL. The Hemoglobin S gene is then resulted from this and is a rece...
What is Sickle cell disease? Sickle cell affects a disease; that disease is called which affects the hemoglobin when the red blood cells that send oxygen through the body are killed off and weakened. Sickle cells can be found in every 1 and 1000 African Americans, it is affecting about 70,000 to 80,000 Americans in the United States. Sickle cell is a death threatening disease, and the severity of symptoms can vary from person to person (Sickle cell disease (SCD), 2015). Some people have light conditions, but others can have severe conditions, which, mean they could be hospitalized. Characteristics of this disease are caused by a minimum of low blood cells, which is called anemia.
Thalassemia is an inherited blood disorder characterized by low amounts of hemoglobin and a low count of erythrocytes in the body. Thalassemia is caused by mutations in the deoxyribonucleic acid of cells, which makes hemoglobin. The mutations are passed from parent to child. The mutations vary depending on the type of Thalassemia inherited. The variation in the mutation occurs from the number of gene mutations, which are inherited, as well as mutation within the hemoglobin molecule. Clinical manifestations are diverse ranging from asymptomatic, to those who are carriers of the thalassemia, which may have mild symptoms, there also people who posses the trait, who may have severe symptoms which lead to death.
Sickle cell anemia occurs when an abnormal form of hemoglobin (HbS) is produced. HbS molecules tend to clump together, making red blood cells sticky, stiff, and more fragile, and causing them to form into a curved, sickle shape. Red blood cells containing HbS can go back and forth between being shaped normally and being sickle shaped until they eventually become sickle shaped permanently. Instead of moving through the bloodstream easily, these sickle cells can clog blood vessels and deprive the body's tissues and organs of the oxygen they need to stay healthy.
“In the United States, it's estimated that sickle cell anemia affects 70,000–100,000 people, mainly African Americans” (NHLBI, NIH, Who is at risk for sickle cell anemia). SCD is a disease that is a serious disorder in which the body can make normal blood cells and sickle shape cells. Sickle shape cells can block the blood flow in your vessels and cause pain or organ damage also put you in risk for infections. SCD has no cure available but there are many treatments out there to deal with the complications of it. From over years treatments did get better from way back in the day doctors have learned. Sickle cell disease has lack of attention and funding because it’s only affecting African American the most.
Sickle cell anemia is an inherited disease of red blood cells. Normally red blood cells contain a protein called hemoglobin A, which carries oxygen to all the organs in the body. With sickle cell anemia, however, the body makes a different kind of protein, called hemoglobin S.
“The word 'leukemia' is a very frightening word. In many instances, it's a killer and it's something that you have to deal with in a very serious and determined way if you're going to beat it” - Kareem Abdul-Jabbar. Many people, including tons of children, fight leukemia every day trying to beat this vicious cancer. Without knowing how leukemia is exactly caused, it puts a damper on how to avoid it.
Sickle cell anemia is a blood disorder that is inherited from both parents in which the body produces abnormally shaped red blood cells. In sickle cell anemia, the hemoglobin in red blood cells links together; resulting in the red blood cells to become rigid and a C-shaped. These deformed cells block blood and oxygen flow in blood vessels. Sickle cells deteriorate quicker than normal red blood cells, which results in anemia.
Sickle cell anemia is a genetic disorder that erythrocytes tolerate sickle shape red blood cells. These red blood cells are easy to damage, which leads to hemolytic anemia. Abnormal hemoglobin is fragile to low oxygen conditions within the body. It loses the blood solubility, and then forms thick strands called polymers. This gives the abnormal shape, called Sickle cell.
Sickle cell anemia is the most common in hemoglobin mutation diseases due to mutation to beta-blobin gene. The substitution of valine for glutamate at position 6 of the beta chains paces a nonpolar residue on the outside of hemoglobin S. the oxygen affinity and allosteric properties of hemoglubin are virtually unaffected by this changes. However, this alternation markedly reduces the solubility of the deoxygenated but not the oxygenated form of hemoglobin. Thus, sicking occurs when there is a high concentration of the deoxygenated form of hemoglobin.
Sickle cell anemia is an inherited disease in mostly people of Mediterranean, African, or Southeast Asian heritage which occurs when a person inherits the genes for sickle hemoglobin(NHLB). Sickle cell anemia is named from the shape that the red blood cells take because they become a crescent/sickle shape. Normally these red blood cells are flexible and round, but with sickle cell anemia they become rigid and sticky(Mayo Clinic) This shape inhibits the normal functions of red blood cells and they also cause blockages in blood flow to the limbs. The signs and symptoms of the disease vary, ranging from mild symptoms to drastic and hospital inducing health problems. There currently exists no widely available cure for sickle cell anemia, but as time passes and more research is done it is hopeful that there will be a cure.
This causes the cells to take on an unusual “S” shape, therefore being named sickle-cell. The individual that expresses the disease must inherit two abnormal copies of the gene for haemoglobin from each parent, whereas carriers contain only one abnormal copy and do not show any symptoms. The defective gene is affected by a single base mutation of the β-globin gene, which replaces glutamic acid with valine at the sixth base. This then creates the alternative protein haemoglobin S, while the normal result would be haemoglobin A. Focusing on the amino acid sequence itself, the event that unfolds is switching from a normal GAG codon to a GTG, and subsequently, alternative transcription by a GUG codon. Since the cells assume a peculiar sickle-like appearance and are characterised by considerable loss of elasticity, this causes difficulties in their movement through blood vessels, where they often get stuck due to their modified cellular characteristic. This blocks regular blood flow, terminally causing hypoxia (lack of adequate oxygen supply) in the affected individual due to vessel obstruction and inevitable ischemia (lack of blood flow). Furthermore, this mutation does not only negatively affect the individual but also inevitably raises the chance of passing along the
Sickle Cell Anemia is an inherited blood disorder that is extremely challenging to live with. Its symptoms are many, with the most prominent being severe pain that can become unbearable to the point where hospitalization is required. Because sickle cell is a genetic disorder, a person is born with it and it is usually permanent. Unfortunately, there are risks and complications associated with this disease. However there are various treatment options for a patient with sickle cell and also support to help people understand and cope with this challenging disease.
Like many disorders, sickle cell disease is inherited. A person who has the disorder must inherit the two genes for sickle hemoglobin from one’s parents. Many people could be carriers for the disease,possess no symptoms, and later pass it on to their own children. Furthermore, when you were conceived, you received a set of genes from your dad(sperm) and another set from your mom(egg). Inside structures, called chromosomes, where DNA is tightly coiled, there contained are
In everyone’s body, there are two copies of the haemoglobin gene in every cell in their body – one from the father and one from the mother. When eggs and sperm are made, only one of the two genes goes into each egg or sperm cell. Therefore, the genes the baby will receive will depend on the genes carried by its parents. Sickle cell disease is a recessive condition because you must have to copies of the sickle haemoglobin gene to have the disorder. Sickle haemoglobin is often
Thalassemia is a blood disorder transferred through families. It occurs when the body makes less hemoglobin than needed or an unusual form of hemoglobin. Hemoglobin is the protein in red blood cells that carry oxygen. The disorder makes an excessive amount of destruction of red blood cells. This eventually leads to anemia.