definition of hemoglobin disorders
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Hemoglobin Diseases H emoglobin diseases are a group of blood disorders passed down through families in which there is an abnormal production or structure of the hemoglobin protein.
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Thalassemia Thalassemia: Thalassemia is an inherited blood disorder characterized by abnormal synthesis of hemoglobin. Hemoglobin consists of two main protein chains called alpha and beta. There are two subtypes of the disorder (alpha and beta) depending on what portion of the hemoglobin is abnormally synthesized. Each of these subtypes can be further classified depending on the number of thalassemia genes involved.
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BETA-THALASSEMIA ▼ Description. Beta-thalassemia is characterized by a reduced production of hemoglobin A (HbA, alpha-2/beta-2), which results from the reduced synthesis of beta-globin chains relative to alpha-globin chains, thus causing an imbalance in globin chain production and hence abnormal erythropoiesis.
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Low hemoglobin count Definition. A low hemoglobin count is a commonly seen blood test result. Hemoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body.In many cases, a low hemoglobin count is only slightly lower than normal and doesn't affect how you feel.emoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body. In many cases, a low hemoglobin count is only slightly lower than normal and doesn't affect how you feel.
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Low hemoglobin count A low hemoglobin count is generally defined as less than 13.5 grams of hemoglobin per deciliter (135 grams per liter) of blood for men and less than 12 grams per deciliter (120 grams per liter) for women. In children, the definition varies with age and sex. low hemoglobin count is generally defined as less than 13.5 grams of hemoglobin per deciliter (135 grams per liter) of blood for men and less than 12 grams per deciliter (120 grams per liter) for women. In children, the definition varies with age and sex.
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- home / medterms medical dictionary a-z list / methemoglobin definition Medical Definition of Methemoglobin Methemoglobin: A form of hemoglobin that is incapable of carrying oxygen, sometimes found in the blood after certain poisonings, such as with aniline, nitrates, and other compounds. What Kind of Doctor Do I Need?
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Anemia n a type in which the mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) content, and mean corpuscular hemoglobin concentration (MCHC) are all low (e.g., iron deficiency anemia, hereditary leptocytosis, hemoglobin C anemia, and anemias resulting from pyridoxine deficiency and chronic lead poisoning).
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hemoglobin test Hemoglobin is a protein inside red blood cells that carries oxygen throughout the body. A hemoglobin test reveals how much hemoglobin is in a person's blood, helping to diagnose and monitor anemia and polycythemia vera. A hemoglobin test is done when a person is ill or during a general physical examination.
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Hemoglobinopathies  (Hemoglobin Disorders) (Hemoglobin Disorders) Hemoglobin is produced by genes that control the expression of the hemoglobin protein. Defects in these genes can produce abnormal hemoglobins and anemia, which are conditions termed hemoglobinopathies. Abnormal hemoglobins appear in one of three basic circumstances:
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- Citrus bergamia, the bergamot orange (pronounced, standard English: /ˈbɜːɡəˌmɒt/ or GenAm : /ˈbɝɡəˌmɑt/) is a fragrant fruit the size of an orange, with a yellow color similar to a lemon.itrus bergamot is commercially grown in southern Calabria (province of Reggio), southern Italy, where more than 80% are produced. It is also grown in southern France and in Cote côte'D ivoire for the essential oil and In antalya in Southern turkey for its. Marmalade the fruit is not generally grown for juice. consumption
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- The hemoglobin test is a commonly ordered blood test and is almost always done as part of a complete blood count (CBC). Common reasons or conditions for ordering the hemoglobin test include: 1  Symptoms such as fatigue, feelings of poor health, or unexplained weight loss.  Signs of bleeding are present.
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Hemoglobinopathy Evaluation A hemoglobinopathy evaluation is a group of tests that identifies abnormal forms of or suggests problems with production of hemoglobin in order to screen for and/or diagnose a hemoglobin disorder.
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Overview Definition. A hemoglobin test measures the amount of hemoglobin in your blood. Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs.If a hemoglobin test reveals that your hemoglobin level is lower than normal, it means you have a low red blood cell count (anemia).Anemia can have many different causes, including vitamin deficiencies, bleeding and chronic diseases.f a hemoglobin test reveals that your hemoglobin level is lower than normal, it means you have a low red blood cell count (anemia).
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- 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.utations in the HBB gene cause sickle cell disease. Hemoglobin consists of four protein subunits, typically, two subunits called alpha-globin and two subunits called beta-globin. The HBB gene provides instructions for making beta-globin. Various versions of beta-globin result from different mutations in the HBB gene.
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STRUCTURE OF HAEMOGLOBIN AND HAEMOGLOBINOPATHIES The term sickle cell disease (SCD) describes a group of inherited red blood cell disorders. People with SCD have abnormal hemoglobin, called hemoglobin S or sickle hemoglobin, in their red blood cells.Hemoglobin is a protein in red blood cells that carries oxygen throughout the body.eople who have SCD inherit two abnormal hemoglobin genes, one from each parent. In all forms of SCD, at least one of the two abnormal genes causes a person’s body to make hemoglobin S. When a person has two hemoglobin S genes, Hemoglobin SS, the disease is called sickle cell anemia.
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- hemoglobin definition: The definition of hemoglobin is the red iron pigment that makes red blood cells red. (noun) An example of hemoglobin is what brings oxygen from the lungs to the body's tissue....
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Blood Disorders (Anemia, Leukopenia, and Thrombocytopenia) Blood Disorders (Anemia, Leukopenia, and Thrombocytopenia) Blood Disorders (Anemia, Leukopenia, and Thrombocytopenia) Blood is a body fluid that carries essential nutrients to tissues throughout the body. Abnormalities in the number of cells in the blood can produce several conditions: Anemia, an abnormally low number of red blood cells or low hemoglobin.
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An Overview of Anemia Anemia is defined as a lower than normal number of red blood cells (RBCs) or hemoglobin, a protein they contain that transports oxygen to your tissues. The definition of anemia changes throughout life because the normal number of RBCs or hemoglobin changes as we age.
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- Medical Definition of Hemoglobin. Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called oxyhemoglobin and is bright red. In the reduced state it is called deoxyhemoglobin and is purple-blue.
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Hemoglobin SS disease (Hb SS) Hemoglobin SS disease (Hb SS) Sickle cell anemia is an inherited disease in which the red blood cells, normally disc-shaped, become crescent shaped. As a result, they function abnormally and cause small blood clots. These clots give rise to recurrent painful episodes called “sickle cell pain crises.”. Causes, incidence, and risk factors.
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- The thalassemias are a group of inherited hematologic disorders caused by defects in the synthesis of one or more of the hemoglobin chains. Alpha thalassemia is caused by reduced or absent synthesis of alpha globin chains, and beta thalassemia is caused by reduced or absent synthesis of beta globin chains.
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- Nairobi is not only the de facto first city of Kenya, it is also one of the engines driving the rise and rise of the African continent as a whole. 2 billion agreement will be signed in Nairobi at the Global Entrepreneurship Summit (GES).
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Human Physiology/Print Version What is a hemoglobin abnormality? A hemoglobin abnormality is a variant form of hemoglobin that is often inherited and may cause a blood disorder (hemoglobinopathy). Hemoglobin is the iron-containing protein compound within red blood cells that carries oxygen throughout the body. It is made up of heme, which is the iron-containing portion, and globin chains, which are proteins. The globin protein consists of chains of amino acids, the building blocks of proteins. There are several different types of globin chains, named alpha, beta, delta, and gamma. Normal hemoglobin types include:
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hemoglobin test hemoglobin (Hb, Hgb) test, a blood test that measures the total amount of hemoglobin in the peripheral blood, which reflects the number of red blood cells in the blood. The test is normally performed as part of a complete blood count.emoglobin is a protein inside red blood cells that carries oxygen throughout the body. A hemoglobin test reveals how much hemoglobin is in a person's blood, helping to diagnose and monitor anemia and polycythemia vera.
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Names and Codes Hb SS-disease, also known as sickle cell anemia, is the most common disorder affecting hemoglobin. This condition is a form of sickle cell disease. People with this disorder have atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle (crescent) shape. Characteristic features of sickle cell anemia include anemia, repeated infections, and periodic episodes of pain and organ damage.
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Hemoglobin E disease Hemoglobin E (HbE) disease is a mild, inherited blood disorder characterized by an abnormal form of hemoglobin, called hemoglobin E. People with this condition may have very mild anemia, but the condition typically does not cause any symptoms.