A Study On Sickle Cell Disease

People with sickle cell anemia have inherited two sickle cell genes, one from each parent. A child who has inherited the sickle cell gene from only one parent will not develop the disease, but will have sickle cell trait. People who have sickle cell trait don't have sickle cell anemia or symptoms of the disease, but they can pass the sickle cell gene to their own children.

Sickle cell disease (SCD) occurs in 1 out of every 365 African American births compared to 1 out of 16,000 Hispanic-American births (1). SCD is a group of red blood cell disorders in which patients have a sickle or moon-shaped red blood cell due to an abnormal S hemoglobin. While sickle cell disease is relatively rare in American births, this is an alarming statistic among people of Sub-Saharan (west and central) African descent. An interesting fact is that SCD occurs more often among people from parts of the world where malaria is or was common, such as Sub-Saharan Africa (1). In addition, it is believed that people who carry the sickle cell trait are less likely to have

The sickle cell disease affects about 100,000 people in the America. The most common ethnic group the sickle cell anemia is seen in is African Americans and Hispanics. Approximately one in every ten African American and one in every one hundred Hispanic Americans have the sickle cell trait. Approximately two million people have the sickle cell trait in America. Approximately one in five- hundred African Americans and one in one thousand to one thousand and four hundred Hispanic-Americans have sickle cell disease. No universal cure has been found for sickle cell anemia (“Facts About Sickle Cell Trait And Disease,”n.d.). Sickle cell anemia affects many Americans and a universal cure needs to be found.

Resulting in lack of blood flow to the region most commonly in the peripherals and organs causing pain in hands, feet, joints, fever and in severe forms develops in bones (Smeltzer, Bare, Hinkle, & Cheever, 2010). Sickle cell anemia is the most severe form of SCD, lesser forms include sickle cell hemoglobin C disease, sickle cell hemoglobin D disease, and sickle cell beta-thalassemia. (Smeltzer, Bare, Hinkle, & Cheever, 2010). . The term sickle cell trait is referred to people who are carriers of certain strand of abnormal gene, and it is a type of benign state of sickle cell hemoglobin C (Smeltzer, Bare, Hinkle, & Cheever, 2010). Though, if two people with the same traits may have child, the child will have a 1 in 4th chance of receiving two abnormal genes will develop sickle cell anemia (Smeltzer, Bare, Hinkle, & Cheever, 2010).

Sickle Cell Disease, also referred to as SCD, is a genetically inherited disease that causes abnormal hemoglobin, called hemoglobin S or sickle hemoglobin, in red blood cells. This disease currently affects about 90,000-100,000 Americans, a majority being African-American. Because SCD is genetically inherited, it is not contagious. It is inherited when both parents of a child carry the sickle cell trait, also called SCT. SCT and SCD are not the same. In SCT, the person is generally healthy and does not endure what one with SCD does, they are simply a “carrier” of the sickle cell trait. SCD cannot be inherited if only one parent is a carrier. If both parents are carriers of the sickle cell trait, the child still only has a 25% chance of being born with sickle cell. They have a 50% chance of being born with a single trait, making them a carrier, and a 25% chance of being born with normal hemoglobin. About 1 in 13 African-American babies are born as a carrier and 1 in 365 are born with the disease.

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

In fact there is a vast number of different Sickle Cell disease. The most recognized types of Sickle Cell Disease are Hemoglobin SS Disease, Hemoglobin SC Disease, Hemoglobin SB+ Thalassemia, and Beta-Zero Thalassemia. Hemoglobin SS Disease also known as Sickle Cell Anemia is the most common form of Sickle Cell Disease. Sickle Cell Anemia occurs when the patient inherits two genes that are abnormal and causes the shape of the red blood cell to alter. Hemoglobin SC disease is known as a Hemoglobinopathy. Hemoglobinapathy is a hereditary condition involving the abnormal form of hemoglobin. Hemoglobin SB+ Thalassemia is said to be a variant form of Sickle Cell Anemia. The final common form of Sickle Cell is Beta-Zero Thalassemia. Beta-Zero Thalassemia like Hemoglobin SB+ Thalassemia is similar to Sickle Cell Anemia. These different types of Sickle Cell vary from the type of symptoms and the different types of

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 diseases are inherited blood disorders that affect mostly African Americans about 70,000 people in the United States. The studies shows approximately 2 million Americans have the sickle cell trait. The sickle cell trait occurs in about 1 in 12 African Americans and sickle cell disease affects millions of people worldwide. The rate for sickle cell disease or sickle cell trait is higher in people who live in Africa, South or Central America, the Caribbean islands, Mediterranean countries, India, and Saudi Arabia.

The disorders for Sickle Cell Anemia is mutation, autosomal recessive, and blood loss. The chromosomes traveled from one parent to another which mean it's a positive chance the child will have that disease. Also that

Sickle cell anemia mainly affects people with African, Mediterranean, Middle Eastern, and Indian ancestry. A person with sickle cell anemia inherits two sickle cell genes, one from each parent. It cause the red blood cells to change and become crescent shaped. Normal red blood cells are disk shaped and move easy through the blood vessels. The primary problem is hemoglobin, it 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. In sickle cell anemia, the hemoglobin is flawed. The cells become sickle shaped and can’t move as easily through blood vessels. Sickle cell anemia has one main cause, in order for sickle cell anemia to happen, a sickle

In order for a person to have this disease, both parents have to carry the Sickle Cell Trait. This trait is given to the parents by their parents in which one of them has the sickle cell gene “S “and the other has the normal “A” gene. Children are diagnosed with SCD as early as 4 months old and accurately diagnosed by the age of 6 months old.

Sickle cell disease is a hereditary blood disorder most common in the African American community. Many people are carriers of the sickle cell trait, however in order for a person to develop sickle cell disease both parents must have passed on the trait to their child. Sickle cell disease causes a mutation in normal red blood cells resulting in decreased tissue perfusion and organ damage. This causes partial or complete replacement of normal hemoglobin with abnormal shaped sickled cells. An abnormal shaped sickled cell may become lodged to a blood vessel where other cells then bind to it and begin to form a clump. The blood vessels continually attach to each other and result in a blockage of small blood vessels eventually resulting in organ

This disease is a genetic disease and it is hereditary. It is inherited as an autosomal recessive disease. This means that in order to get the gene you must receive a recessive trait from your mother and your father. The parents could both be heterozygous for the trait and therefore not have the disease, but instead they would both be a carrier. There are only a few ways that the parents could possibly pass the trait. One possibility of having a child with sickle-cell disease is if both parents are heterozygous and they both pass on their recessive allele, (25% chance for offspring to have sickle-cell disease). Another possibility

Sickle cell disease is a hereditary hemoglobin defect that occurs in people of African and Mediterranean decent. “First identified in 1904 by a hospital intern, sickle cell disease became, more than forty years later, the first disease found to be a genetic disease” (Harris 83). This disorder is caused by a recessive allele that changes the structure of hemoglobin. Sickle cell hemoglobin (HbS) differs from normal hemoglobin (HbA) in that of all the 574 amino acids it is made of, just one is different. In the sixth amino acid of the beta chain, HbA has glutamic acid and HbS has valine.