Sickle cell is the absolute disease, and sickle trait is someone who may carry the trait for the disease which may mean, if they were to have a children they could perhaps get the disease.…
In looking at sickle-cell anemia, we are interested in studying the gene that codes for…
Sickle cell anemia affects people with African, Mediterranean, Middle Eastern, and Indian ancestry (Scientific American). Sickle cell anemia occurs when a person inherits two sickle cell gene, one from each parent, that cause the red blood cells to change and become crescent shaped. The underlying problem involves hemoglobin, a component of the red blood cells. Hemoglobin is a protein molecule in red blood cells that carries oxygen from the lungs to the body’s tissues and returns carbon dioxide from the tissues to the lung. In sickle cell anemia, the hemoglobin is flawed (The New York Times). As a result, the cells become sickle shaped and can’t travel as easily through blood vessels. Sickle cell anemia is an illness, which has one primary cause, but a variety of symptoms and treatments (Scientific American.) Like some illnesses, sickle cell anemia has one primary cause. In order for sickle cell anemia to occur is when a sickle cell gene have, been inherited from both the mother and the father, so that the child has two sickle cell gene. The sickle cell gene causes the body to make abnormal hemoglobin. As mentioned above, hemoglobin is a protein molecule in red blood cells that carries oxygen from the lungs to the body’s tissues and returns carbon dioxide from the tissues to the lungs. A person with normal red blood cell will have hemoglobin A; however, a person with sickle cell disease will have hemoglobin S…
1. Sickle cell disease is a group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body. People with this disorder have atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle, or crescent, shape.…
Sickle cell anemia is the most common form of sickle cell disease which is an inherited, autosomal recessive disorder that causes an abnormal hemoglobin cell. The person with this specific disorder inherited hemoglobin S from both parents, also known as homozygous (Lewis, Dirksen, Heitkemper, & Bucher, 2014, pp. 644-647). This hemoglobin S results from the substitution of valine for glutamic acid on the B-globin chain of hemoglobin, and this ultimately causes the erythrocyte to stiffen and elongate taking a sickle shape in response to low oxygen levels (Lewis et al., 2014, pp. 644-647). Due to the sickle cells elongated shape, and its stiff and sticky consistency it tends to get stuck in capillaries and vessels, and blocks blood flow to limbs and organs (Lewis et al., 2014, pp. 644-647). The major problems with sickle cell anemia is due to their sickled shape, reduced life expectancy and their ability to carry enough hemoglobin or transport it properly to…
Sickle cell disease is an inherited disorder in which red blood cells are abnormally shaped. This abnormality can result in painful episodes, serious infections, chronic anaemia, and damage to body organs.…
Sickle cell disease is a autosomal recessive trait that occurs due to the single base substitution in DNA.…
Sickle-cell disease is caused by a single point mutation in the beta-hemoglobin gene that converts a GAG codon into GUG, which encodes the amino acid valine rather than glutamic acid. Tay - Sachs disease is an autosomal recessive genetic disorder caused by a genetic defect in a single gene with one defective copy of that gene inherited from each parent. This disease occurs when harmful quantities of gangliosides accumulate in the nerve cells of the brain, eventually leading to the premature death of those cells.…
Sickle Cell Anemia, also known as Sickle Cell Disease, is a disease that causes the production of abnormal hemoglobin. The red blood cells (RBCs) carry oxygen to organs and tissues. Hemoglobin, a molecule in the RBCs, is a protein that attaches to the oxygen in the lungs and carries it to all parts of the body. Hemoglobin takes on the oxygen, and releases carbon dioxide, a process known as oxygenation. In the tissues, deoxygenation occurs where the processes is reversed, when hemoglobin releases oxygen and takes on carbon dioxide. When the RBCs are healthy, they can easily move through the tiniest blood vessels throughout the body because of their flexibility. The hemoglobin S is fragile and abnormal in Sickle Cell Anemia, and the RBCs are pointy with a shape like the alphabet letter "C" or the crescent moon. This makes the RBCs difficult to move pass through the blood vessels. The RBCs become hard, and can get stuck in blood vessels, and often clog the spleen. This causes pain, infection, and poor blood flow in patients that have Sickle Cell Anemia. The RBCs also block blood flow to organs, such as the heart, lungs, brain, etc., which can lead to stroke, damage to organs, especially the spleen, acute chest syndrome, disability, and sometimes, even death.…
Sickle cell disease is an autosomal recessive genetic disorder most common in African Americans, which results from a mutation affecting the amino acid sequence of the beta chains of hemoglobin molecules in red blood cells. The abnormal hemoglobin which causes the red blood cells to sickle is called hemoglobin S. Sickling occurs when the red blood cells are deoxygenated causing the cell to have a hard curved crescent shape. Due to their shape the sickle cells can become trapped in blood vessel walls causing a circulatory blockage and could cause tissues to become oxygen deprived, pain, infection, and organ damage. Red blood cells in sickle cell disease also have a life span of 10 to 20 days compared to normal red blood cells of 120 days; because of this shortened life span chronic hemolytic anemia occurs (Thompson, 2012). All together sickle cells disease causes a dramatic decrease in the quality of life that can lead to early death, the absolute need for medical intervention, and transplantations.…
Sickle cell is inherited and is normally only found in Black Americans. The blood cells are shaped differently and it due to a genetic defect. (WebMD, 2014) This causes the blood cells to eliminate themselves rather quickly causing lack of oxygen to the organs in the body. The reason this disease is so painful is because the blood cells become trapped in the blood vessels. (WebMD, 2014)…
Sickle cell anemia or also known as sickle cell disease is a hereditary genetic disease defined by the presence of odd shaped crescent-shaped red blood cells instead of the regular round disc like shape cells. Red blood cells transport oxygen from the lungs to various other organs and tissues with the help of a protein called hemoglobin. The main cause of sickle cell disease is when hemoglobin mutates into an abnormal type called hemoglobin S. The presence of Hemoglobin S causes red blood cells to be sickle-shaped and rigid, making it more difficult for them to flow through blood vessels in the body to deliver oxygen. Therefore, the sickled cells latch onto the walls of various blood vessels throughout the body, resulting in blocked blood flow that can lead to organ damage, pain and infections…
the supply of oxygen gets cut off. A normal blood cell lives up to 120…
There have been many researches and tests done on the genetic causes of Sickle Cell Anemia and how it developes, as well as it's effects on the circulatory, muscular, and respiratory systems, as well as it's effects on the joints and other systems of the body, and the complications associated with them. Most of the research has been done to explore on the reasons why it mostly effects the African-American community and people who are from the West Coast of Africa. It has also been known that Sickle Cell Anemia also effects people from the Mediterranean countries (Wethers, 2000)…
Sickle cell anemia is a genetic blood disorder which is inherited from both parents, that causes red blood cells in patients to be sickle-shaped. This causes the red blood cells to clump together, and be unable to retain oxygen. Sickle cell anemia was first noted in 1910, and is thought to have evolved as a way for the body to naturally fight malaria. It is most prevalent in Africa, India, the West Indies and the Mediterranean, places where malaria is more common. In this country, it is most prevalent in African Americans, affecting approximately 1 in 400.…