Hemoglobin C disease is an inherited blood disorder that affects the shape of hemoglobin, a protein molecule in the red blood cells. The correct spelling of this word is /ˌhiːməˈɡloʊbɪn siː dɪˈziːz/. In this phonetic transcription, the stress is on the first syllable of "Hemoglobin" and the second syllable of "Disease." The "C" in Hemoglobin C disease refers to a specific mutation in the hemoglobin protein chain, which results in abnormal blood cells causing anemia, fatigue, and other symptoms.
Hemoglobin C disease is a hereditary blood disorder characterized by an abnormal form of hemoglobin. Hemoglobin is a protein found in red blood cells and is responsible for carrying oxygen throughout the body.
In individuals with hemoglobin C disease, a mutation in the HBB gene leads to the production of an altered form of hemoglobin called hemoglobin C. This mutation causes the substitution of a single amino acid in the hemoglobin molecule, resulting in the abnormal shape and function of red blood cells.
The altered hemoglobin C does not bind oxygen as efficiently as healthy hemoglobin, leading to a reduced capacity to transport oxygen to tissues throughout the body. This can result in a variety of symptoms, including mild to moderate anemia, fatigue, pale skin, and weakness.
Hemoglobin C disease is an autosomal recessive disorder, meaning that an affected individual must inherit a copy of the mutated gene from both parents. Individuals who inherit only one copy of the mutated gene are carriers of the disease but typically do not show any symptoms.
Diagnosis of hemoglobin C disease is usually made through a blood test that examines the structure and function of hemoglobin. Treatment for the condition is primarily supportive and focused on managing symptoms. In severe cases, blood transfusions may be necessary to alleviate anemia and improve oxygen transport. Genetic counseling is recommended for individuals with hemoglobin C disease or those who may be carriers to understand the risks and implications for future generations.