Sickle Cell Anemia ( Sca )

Sickle cell anemia occurs when a person inherits two abnormal genes (one from each parent) that cause their red blood cells to change shape. Instead of being flexible and round, these cells are more rigid and curved in the shape of the farm tool known as a sickle - that's where the disease gets its name. The shape

Sickle Cell Disease is an autosomal recessive genetic disease that occurs due to a mutation in the β-globin gene of hemoglobin. Autosomal meaning that it is not linked to a sex chromosome, so either parent can pass on the gene to their child. This mutation is a result of a single substitution of amino acids, Glutamic for Valine at position 6 of a β globin chain. The presence of this mutation causes

Sickle cell crisis is an acute form of sickle cell disease where pain and sickling are extensive (Byar, 2013). SCD is a genetic disease that predominantly affects black people of African decent (Gersten, 2016). Abnormal hemoglobin chains are the main issue with SCD (Byar, 2013). Normal hemoglobin chains are comprised of 99% hemoglobin A (HbA) however, in SCD an abnormal form of the gene, hemoglobin S (HbS) is present in approximately 40% of total hemoglobin (Byar, 2013). In order for a person to be born with SCD, both parents must carry the abnormal gene, HbS (Byar, 2013). HbS is extremely sensitive to the changes in oxygen amount of the RBC and when exposed to decreased oxygen the HbS cause the RBC to distort and become sickle-shaped,

In this article, sickle cell anemia is defined as a hereditary disease that destroys red blood cells by causing them take on an elongated and rigid "sickle" shape. In addition, a different type of hemoglobin called Hemoglobin S, is the protein in red blood cells that carry oxygen throughout the body. This protein starts to wrap around other red blood cells when oxygen is lacking to form a helical shape. Once this happens the cells cluster together and elongate and the cells start to "sickle". A person who has sickle cell anemia can only get it if both of their parents carry the sickle cell trait, if only one parent has the trait then there children are at risk for having the trait.

Approximately 100,000 people suffer from Sickle Cell Anemia everyday and about 2 million people have the Sickle Cell trait in the United States alone. Sickle cell disease is the most common inherited blood disorder in the United States, affecting 70,000 to 80,000 Americans (Pruthi 2018). The disease is estimated to occur in 1 in 500 African Americans and 1 in 1,000 to 1,400 Hispanic Americans (Pruthi 2018). Sickle cell anemia is an inherited form of anemia, a condition in which there aren't enough healthy red blood cells to carry adequate oxygen throughout your body normally, your red blood cells are flexible and round, moving easily through your blood vessels. In sickle cell anemia, the red blood cells become

Sickle cell anemia (SCA) is an autosomal recessive inherited disease that affects the red blood cells. A person must receive a sickle gene from each parent to have the disease. If a person only receives one gene from either parent, they will have the sickle cell trait.

Sickle cell anemia is a blood disorder that happen very commonly in the African descent.

Sickle cell anemia (SCA) is an inherited disease of the blood that is characterized by the production of abnormal hemoglobin S causing the cell to acquire a sickle shape that prevents the smooth flow of blood to a major organ (Shea et al. 2017). The stress is usually caused by fever, infection or cold temperature, which lead to sickle cell crisis caused by hypoxia, dehydration, and acidosis (Barranger, 2017).

Sickle cell anemia is a severe condition in which there aren’t enough healthy, round red blood cells to carry adequate oxygen throughout your body. It is a form of anemia in which a mutated form of hemoglobin--a red protein responsible for transporting oxygen in the blood of vertebrates--distorts the red blood cells into a crescent shape. This causes low oxygen levels. Normal red blood cells are flexible and round allowing for easy movement throughout your blood vessels. In sickle cell anemia, the red blood cells are rigid and sticky and are shaped like a crescent moon--or a sickle. The effect is the red blood cells get caught in small vessels and block blood from reaching different parts of the body. This can cause pain and tissue damage.

The disease I choose to talk about is Sickle Cell anemia, which is a blood disease that is prevalent among the African American race. This disease is interesting to me because it is a hereditary disease, so it can only be contracted if your parents have the disease. Sickle Cell anemia is caused by abnormal hemoglobin, the red blood cells in your body contain two vital hemoglobin molecules, a protein that carries the oxygen through your blood to travel throughout the body. People with sickle cell anemia, they have two copies of abnormal hemoglobin referred to as hemoglobin S. The molecule is what causes the problems within the red blood cells, rendering them unable to properly complete the process of carrying oxygen where it needs to go.

Sickle cell anemia, a genetic disease that affects a minority of individuals with African, Indian, and Mediterranean heritage, has been present in Africa for thousands of years, but was only recently “discovered” by countries outside of Africa. The so-called discovery occurred in 1904 when a young African-American dental student complained to Dr. James B. Herrick of chronic pain episodes. Because Dr. Herrick’s speciality was cardiology, he deferred the case to another doctor, Dr. Ernest Iron, to the case. While examining the student’s blood under a microscope, Dr. Earnest Iron discovered an interesting anomaly; he aptly described the red blood cells as “having the shape of a sickle”. After being referred

When the chromosomes are inherited, a mutated gene can be passed from carrier or afflicted parents to their offspring. The inheritance of sickle cell disease therefore depends on this mutation. Afflicted people have a mutation on chromosome 11 which codes for the beta subunit of haemoglobin. It reflects a single base change (GATGTT) of amino acids that distorts the erythrocytes into a severely concave shape at low oxygen concentrations (reference). If one beta globin is sickle and the other is normal, the person is not anaemic, however they are an autosomal heterozygous carrier of sickle cell disease. If both beta globin genes are affected by the mutation, the person is homozygous recessive and becomes

Sickle cell anemia (SCA) is a widespread disorder of hemoglobin synthesis, sometimes termed a hemoglobinopathy. As with other hemoglobinopathies, SCA is an autosomal recessive disease, meaning a person must have two defective genes present for the full blown disease to occur. People who carry a single sickle cell gene are said to have sickle cell trait. The children of two carriers have a 25% chance of inheriting SCA.

Sickle cell anemia is caused by a defect in the gene that controls the production of normal hemoglobin, which is an iron-containing protein in red blood cells that transports oxygen from the lungs to body tissues. The defective gene results in the production of abnormal hemoglobin known as hemoglobin S. If you have the disorder, you inherited one gene for hemoglobin S from each of your parents. The gene is recessive, so if you received a copy of the gene from just one parent, you are a carrier of the sickle cell gene.

Sickle Cell Anemia is a genetic disease that causes some red blood cells to take the form of a sickle this form is more easily destroyed which can lead to anemia. The disease is caused by defective hemoglobin. There are different types of hemoglobin, but Hemoglobin A is the primary hemoglobin affected by sickle cell. Hemoglobin A is made up of 2 alpha globin chains and 2 beta globin chains. The beta globin chain becomes misshapen due to a mutation. The mutation in the beta globin chain occurs when the sixth amino acid is valine instead of glutamic acid. Valine is Hydrophobic which has different properties than glutamic acid which is Hydrophilic. When the cell is deoxygenated it combinates with other cells that have the mutation