Sickle Cell Anemia Research Paper

Sickle Cell Anemia is a disease that affects how oxygen is carried throughout the body by blood. Specifically, sickle cell anemia is characterized by a change in the shape of red blood cells from a smooth donut shape to a crescent or sickled shape. The sickled cells are very long and stiff, so many times

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 anemia is a group of inherited red blood cell disorders, or a collection of recessive genetic disorders characterized by a hemoglobin variant called Hb S. Normal red blood cells are round like doughnuts, and they move through small blood tubes in the body to deliver oxygen. Sickle red blood cells become hard, sticky and shaped like sickles used to cut wheat. When these hard and pointed red cells go through the small blood tube, they clog the flow and break apart. This can cause pain, damage and a low blood count, or anemia. There is a substance in the red cell called hemoglobin that carries oxygen inside the cell. One little change in this substance causes the hemoglobin to form long hard rods in the red cell when it gives

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.

Sickle-cell Anemia is a genetic disorder that causes sever pain in the lower back, legs, arms, abdomen, and chest. Red blood cells carry oxygen to the body. The body uses oxygen to make energy. Inside the red blood cell is a protein called hemoglobin, which hooks on to the oxygen. People with sickle-cell anemia have abnormal hemoglobin known as hemoglobin S. Hemoglobin S changes the blood cells into the shape of a sickle. These abnormal sickle cells stick to the blood vessel walls causing blockages. These blockages do not allow blood to flow. This is what causes the pain. People get sickle cell disease when a parent has a mutated hemoglobin gene. Their child has a chance of inheriting the sickle-cell trait or getting sickle-cell Anemia.

The term sickle refers to the fact that the red blood cells take on a sickle cell shape, instead of their normal biconcave shape (1). The cells can switch between the sickle shape and their normal biconcave shape (2). Sickled cells lose their pliability making it hard for the red blood cells to move through the smaller blood vessels (1). In their abnormal state they become more likely to adhere to the endothelium of the smaller vessels, causing clots to form and the possibility of stroke (2).

Sickle cell anemia (SCA) is an autosomal recessive genetic disorder. This missense mutation is characterized by mutant beta globin subunits that tend to stick together (Cummings, 2014). As a result, abnormally shaped red blood cells are produced by this disorder. The erythrocytes are sickle or crescent shaped. Sickling occurs under hypoxic conditions, in which there is insufficient supply of oxygen delivered throughout the body (Sun & Xia, 2013). In order to inherit this monogenic disease, one copy of the sickle globin gene from each parent must be passed on to the offspring (Ashley-Koch,

It is a condition in which there are not enough healthy red blood cells to carry adequate oxygen throughout the body. Red blood cells are normally round and flexible the moves easily throughout the blood vessels but, in sickle cell anemia the red blood cell is sticky, rigid, and has a crescent moon shape. The irregular shape cells can get stuck in the small blood vessels, which can slow or block

Sickle Cell Anemia or Sickle Cell Disease (SCD) is a passed down blood disorder that attacks and destroys the red blood cells. This Disease was first discovered back in 1910. The disease was first described as a clinical entity by Herrick1 in 1910 (Anderson & Ware 1932). Sickle cell sickness is brought about by a change in the hemoglobin-Beta quality found on chromosome 11. Hemoglobin transports oxygen from the lungs to different parts of the body. Red platelets with typical (hemoglobin-An) are smooth and round and coast through veins. Typical red platelets are round like doughnuts, and they travel through little blood tubes in the body to convey oxygen. Sickle red platelets turn out to be hard, sticky and molded like sickles used to cut wheat. At times these blood cells can become crescent shaped and have a hard time passing through small blood vessels, this keeps red blood cells and the oxygen they carry from getting to all parts of the body. This causes less blood to reach the body at this point the tissues that have not received a normal blood flow will become damaged. Individuals who have sickle cell

Sickle cell disease is categorized as an autosomal recessive disease. That means in order for one to inherit the disease, they must inherit two recessive alleles for sickle cell disease, or hemoglobin S gene. Having only one recessive allele makes you a carrier. The disorder causes the affected person’s red blood cells to disfigure into a crescent or sickle, which differs from the normal red blood cells that shaped into a doughnut. Sometimes, cells in a sickle shape cannot get through the narrow passageways of the blood vessels as easily as normal red blood cells. This blocks blood from entering and oxygen can’t reach the affected person’s organs. It can also crystallize and block arteries and

The sickle-shaped red blood cells are not as effective in carrying oxygen which deprive the tissues of a steady supply of oxygen. Also normal red blood cells are flexible and can move through the blood vessels easily to deliver oxygen to the tissues due to their biconcave shape. Sickle-shaped cell does not possess flexibility because of its shape and will therefore stick to the walls of the blood vessels, causing blockage which slows down blood flow and limits the oxygen transport to the body

Sickle Cell Anaemia is a heredity disorder in which the red blood cells are affected by altering into a mutated-form of haemoglobin, most commonly at low oxygen levels. The altered-form of haemoglobin are crescent-shape; which are not flexible and can easily block the blood flow in smaller blood vessels and arteries (refer to figure 1). When both alleles inherited carry the sickle cell anaemia disease; 100% of the body’s haemoglobin will mutate into the sickle (crescent) shape. Sickle cell disease is the codominance of only one inherited sickled allele, in which; the carrier can pass the disorder but does not express any significant symptoms or the anaemia itself. Sickle cell anaemia is an autosomal recessive disorder, thus both alleles must

Sickle cell disease (SCD) is an inherited and noncontagious, lifelong condition. More specifically, per Ohaeri, Shokunbi, Akinlade, & Dare, 1995, SCD is a generic term for a group of genetic disorders characterized by the predominance of sickle cell hemoglobin (Hgb). Hemoglobin is a protein in the red blood cells that carries oxygen throughout the body. The disease produces significantly abnormal Hgb molecules in red blood cells (RBCs). In sickle cell anemia, the red blood cells become rigid and sticky and are shaped like sickles or crescent moons. These irregularly shaped cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body (Ohaeri, Shokunbi, Akinlade, & Dare, 1995, p. 955.Individuals

Hemoglobin is a protein that is found in red blood cells. It carries oxygen to different areas of the human body. Normal red blood cells are shaped like doughnuts without a hole. This shape is very flexible and allows the cells to move through large and small veins. Some people have an inherited gene that causes a slight change in the protein hemoglobin. If a person has two of these genes, then the person has a disease called sickle cell anemia. The sickle hemoglobin forms stiff rods shaped like a sickle. These sickle-shaped cells are not flexible and can get caught in the blood vessels. Because of this, oxygen can't reach the tissue. This can cause sudden, severe pain called pain crisis. The sickle cells also do not last

Sickle Cell Anemia is a disease that affects how oxygen is carried throughout the body by blood. Specifically, sickle cell anemia is characterized by a change in the shape of red blood cells from a smooth donut shape to a crescent or sickled shape, almost the same shape as a crescent moon. The sickled cells are very long and stiff, so sometimes