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Methemoglobinemia, or methaemoglobinaemia, is a condition of elevated methemoglobin in the blood. [2] ... Hereditary met-Hb is caused by a recessive gene. If only one ...
Hemoglobin M disease is a rare form of hemoglobinopathy, characterized by the presence of hemoglobin M (HbM) and elevated methemoglobin (metHb) level in blood. [1] HbM is an altered form of hemoglobin (Hb) due to point mutation occurring in globin-encoding genes, mostly involving tyrosine substitution for proximal (F8) or distal (E7) histidine residues. [2]
The Fugates, commonly known as the "Blue Fugates" [1] or the "Blue People of Kentucky", are an ancestral family living in the hills of Kentucky starting in the 19th century, where they are known for having a genetic trait that led to the blood disorder methemoglobinemia, causing the skin to appear blue.
There are few times when your doctor or physician will utter the phrase, "I don't know" to a patient, but when you're dealing with the rarest of diseases, then all bets are off. According to the ...
In human blood a trace amount of methemoglobin is normally produced spontaneously; the enzyme methemoglobin reductase is responsible for converting methemoglobin back to hemoglobin. [23] [24] Methemoglobinemia can be hereditary but more commonly occurs as a side effect of certain medications or by abuse of recreational drugs. [25]
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The NADH-dependent enzyme methemoglobin reductase (a type of diaphorase) is responsible for converting methemoglobin back to hemoglobin. Normally one to two percent of a person's hemoglobin is methemoglobin; a higher percentage than this can be genetic or caused by exposure to various chemicals and depending on the level can cause health ...
Methemoglobinemia; Anemias (lack of red blood cells or hemoglobin) Iron-deficiency anemia; Megaloblastic anemia. Vitamin B 12 deficiency Pernicious anemia; Folate deficiency; Hemolytic anemias (destruction of red blood cells) Genetic disorders of RBC membrane Hereditary spherocytosis; Hereditary elliptocytosis; Congenital dyserythropoietic anemia