Normal Sickle Cell Anemia

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

The disease is caused by a mutated version of the gene that help makes hemoglobin. Hemoglobin is the protein that carries oxygen in red blood cells. Sickle cell is a disorder in the blood caused by abnormal hemoglobin proteins. The abnormal hemoglobin protein caused sickle cell shaped red blood cells. The sickle cell red blood cells are crescent shapes and can clog up very easily in blood canals. In the diagram to the right it shows how a mutation causes a change in the amino acid.

The shape of a sickle cell is basically a crescent moon or a "sickle" shape, hence the name. The sickle cells can get stuck in small arteries and veins because of their infamous shape and inability to squeeze through small areas, something regular red blood cells can do. The cause for this mutation is in the hemoglobin, a protein inside the red blood cell, which is what holds the oxygen being transported throughout the body (NIH, 2015). There is currently no cure for the sickle cell disease and it is also genetic.

All of the cells within the tissues of the body need a regular supply of oxygen to function. The hemoglobin found in red blood cells (RBC’s) are essential for the proper transport of oxygen molecules. They bind oxygen in the lungs and carry to every tissue within the body. Due to the structure of hemoglobin, normal RBC’s are donut shaped with a concaved center. This flexible shape is what allows the BRC’s to move freely into very small spaces such as capillaries where they will deliver their oxygen. Sickle cell anemia or other diseases that fall within the broader group of disorders characterized by SCD describe conditions where the protein (hemoglobin) has misfolded and altered the shape of the cell. Sickle hemoglobin allows for the formation of stiff rods within the red blood cell giving it a sickle, or crescent shape. This new shape is not flexible and can block or slow the flow of blood. When this occurs, oxygen cannot reach its intended tissues. This results in severe pain called crises, and these attacks occur

In fact, sickle cell trait is protective against malaria. Malaria is a disease caused by blood-borne parasites transmitted through mosquito bites. According to a theory, the genetic mutation is connected with the sickle cell trait that occurred thousands of years ago. The mutation increased carriers to survive malaria infection. Survivors then passed the mutation to their offspring. Sickle cell disease is known as a sickle cell anemia. Sickle cell diseases are caused by genetic change in hemoglobin. Hemoglobin is called sickle hemoglobin (Hb-S), has a tendency to develop into rod-like structures that alter the shape of the usually flexible and round red blood cells. The cells take on a shape that resembles that curved blade of a sickle. Sickle cells have a shorter life span than normally-shaped red blood cells. The results in chronic anemia caused by low levels of hemoglobin and decreased numbers of red blood cells. Sickle cells are flexible and stickier than normal red blood cells and can become trapped in small blood vessels preventing blood flow. The delivery of oxygen can result in pain and damage to connect tissues and organs. Sickle cell disease is within the

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

But when abnormal sickle haemoglobin releases the oxygen, the oxygen sticks together and forms long rods, which damage and change the red blood cell into rigid, sticky, sickle like or crescent moon shapes.

In a sickle cell cases, the individual red blood cells are sickle shaped. Such an individual experience a deficit in oxygen supply to the tissues in the body and therefore they cannot be engaged in strenuous physical activities or exercises (Peterson, 2009).

Normal red blood cells are shaped likes discs or donuts. Normal red blood cells are soft and flexible so they can move easily through very small blood vessels throughout the body and deliver oxygen to the body. Sickle cells are much different than normal red blood cells. Sickle cells are stiffer, also instead of disc shapes they’re curved like crescent moons, or an old

Sickle Cell Anemia is a horrifying, scary disease to have. Sickle cell anemia is a blood disease that is inherited. It comes from substitutions between a single amino acid and a component protein of hemoglobin. Globin, which is the component protein that has the substitution, isn’t effective. When someone has sickle cell, hemoglobin molecules with those component proteins, stick together and make strands of hemoglobin in red blood cells. Cells with that strand end up stiff and long, known as sickle shaped. Also, with sickle cell, those cells die faster than normal red blood cells and they aren’t easy to replace in a fast manner. Anemia within itself is when there is a huge shortage of red blood cells. When you think about the disease and

Sickle cell anemia is a disorder that is caused by the abnormal shape of hemoglobin cells in the body. In lecture we learned that hemoglobin is the molecule that is present in red blood cells. Hemoglobin is responsible for supplying oxygen to other cells throughout the body. Red blood cells are normally rounded in shape, defected cells are in a long shafted shape, which gives the disease its name. When red blood cells sickle, they break down which causes anemia of the cells. Sickle cells can result in an individual having a low red blood cell count, having repeated infections, and suffering from long episodes of pain in different parts of the body. The disease can also cause delayed growth in children, shortness in breathe, fatigue, swollen feet and hands, and also vision problems.

Sickle cell anaemia describes a hereditary autosomal recessive disorder that affects a protein found in red blood cells (erythrocytes) called haemoglobin. This disease results in 100% of blood cells becoming sickle shaped. The co-dominant sickle cell disease entails half of the erythrocytes becoming sickle shaped and the remaining half as normal biconvex structures, however, these people are carriers and can pass the disease or anaemia onto their offspring. Prevalence of significant morbidity and mortality of sickle cell disease is clear in Africa, the Mediterranean, India, Central America and the Carribean, with estimates suggesting 250 000 children are born annually with sickle cell anaemia (reference). Haemoglobin ss the autosomal recessive genotype, inherited from both parents, causes the phenotype of sickle cell anaemia. When erythrocytes become rigid and sticky, they cannot flow smoothly through small vessels, consequently, slowing or blocking blood flow and oxygen around the body. This prevents oxygen from reaching vital organs such as the spleen, liver, lugs, heart and kidneys, causing extensive damage as lack of oxygen results in cell death.(1) Sickle cells only live an

Different altered versions of produced hemoglobin, can cause red blood cells to distort into different, abnormal shape. The normal red blood cells in the body are round, and specifically made for ease of travel throughout the blood stream. Having different hemoglobin can change the red blood cells into a sickle/crescent shape. This does not allow the blood cells to travel through the blood stream efficiently enough. The HbS blood cells tend to be more stiff, sticky, and clump together which can lead to clots in the bloodstream. When blood cannot get to different parts of the body, things can go bad. When blood cannot get to the muscles and tissues in the body, they cannot get enough oxygen to survive and function properly. Normal blood cells tend to live for around 4 months, while the sickle blood cells only live for 10-20 days. This usually causes anemia, which is when the amount of blood cells in your body drops below normal. People who are anemic, can expect to be tired, fatigued, and can have trouble living normal live

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