Babies born with this condition often die shortly after birth or require lifelong transfusion therapy. Inheriting four mutated genes is rare and usually results in stillbirth.

Three mutated genes, your signs and symptoms will be moderate to severe.

This condition might be called alpha-thalassemia trait. Two mutated genes, your thalassemia signs and symptoms will be mild.But you are a carrier of the disease and can pass it on to your children. One mutated gene, you'll have no signs or symptoms of thalassemia.Alpha-thalassemiaįour genes are involved in making the alpha hemoglobin chain. In beta-thalassemia, the severity of thalassemia you have depends on which part of the hemoglobin molecule is affected. The more mutated genes, the more severe your thalassemia.

In alpha-thalassemia, the severity of thalassemia you have depends on the number of gene mutations you inherit from your parents. In thalassemia, the production of either the alpha or beta chains are reduced, resulting in either alpha-thalassemia or beta-thalassemia. Hemoglobin molecules are made of chains called alpha and beta chains that can be affected by mutations. The mutations associated with thalassemia are passed from parents to children. Thalassemia is caused by mutations in the DNA of cells that make hemoglobin - the substance in red blood cells that carries oxygen throughout your body. Conf.Request an Appointment at Mayo Clinic Causes Population parameters of main fish species of Lake Nokoué in Benin. Fishes of Iguidi River - a small forest stream in south-east Benin. Monographie systématique et notes biologiques sur les poissons de la lagune de Lomé. Length-weight and length-length relationships of fishes from the Ouémé River in Bénin (West Africa). Étude de la diversité ichthyologique du bassin du fleuve Ouémé au Bénin (Afrique de L'Ouest). Ecologie comparée de deux espèce de Chrysichthys, poissons siluriformes ( Claroteidae) du complexe lagunaire lac Nokoué-lagune de Porto-Novo au Bénin. New records of fish species in the River Niger at Malanville (north-east Benin). Fish biodiversity: local studies as basis for global inferences. Morphometric relationships of commercially important fish species from Benin. Ecology and fish catches in natural lakes of Benin, West Africa. ↑ All fishes reported from Benin - FishBase (en inglés).

Myxobolus dahomeyensis infection in ovaries of Tilapia species from Benin (West Africa). ↑ Grankoto, A., Pampoulie, C., Marques, A.Growth and mortality parameters of Pseudotolithus senegalensis and Pseudotolithus typus ( Sciaenidae) in nearshore waters of Benin (West Africa) and their implications for management and conservation. Nannocharax signifer, a new species of fish ( Characiformes: Distichodontidae) from the Ouémé River basin, Benin. The fishery of Ilisha africana in the coastal waters of Republic of Benin and Lagos State, Nigeria. Genetic differentiation of a primitive teleost, the African bonytongue Heterotis niloticus, among river basins and within a floodplain river system in Benin, West Africa. Ontogenetic, seasonal, and spatial variation in the diet of Heterotis niloticus ( Osteoglossiformes: Osteoglossidae) in the Sô River and Lake Hlan, Benin, West Africa. Barboides britzi, a new species of miniature cyprinid from Benin ( Ostariophysi: Cyprinidae), with a neotype designation for Barboides gracilis.

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