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Tạp chí Y Dược học - No. 3 năm 2012

Hemoglobin and thalassemia

Le Phan Minh Triet, Phan Thi Thuy Hoa, Bruno Masala

2012 - No. 3, trang 101

DOI: 10.34071/jmp.2012.1e.16

Tóm tắt

Hemoglobins play an very important role in red blood cells, they carry oxygen and carbon dioxide throughout the body. Hemoglobin molecule consists of four polypeptide subunits, two identical α-globin chains and two identical β-globin chains, covalently bound with a heme prostetic pigments. The b-like globin genes located on chromosome 11p15.5 and α-like globin genes located on chromosome 16p13.3 are responsible for synthesis of globin chains of Hemoglobins. Mutations of these genes cause hypochromic microcytic hemolytic anemia including α-thalassemia, β-thalassemia and some other types.Thalassemia is among the most common inherited diseases worldwide, it has been estimated that 7% of the world’s population are carriers for different inherited disorders of hemoglobin. There are certain mutations responsible for >90% thalassemia cases and about 10% mutations which are unknown or considered as very rare ones. Molecular defects of α-thalassemia are mainly associated with deletions or mutations of one or more of the α-globin genes, of which now more than 50 known deletional mutations have been discovered. In β-thalassemia, more than 200 point mutations and, rarely deletions, have been reported. The list of Hb mutations is updated at http://globin.bx.psu.edu/hbvar/. Key words: Hemoglobin, thalassemia

Từ khoá

Hemoglobins_x005F_x000D_ play an very important role in red blood cellsthey carry oxygen and carbon_x005F_x000D_ dioxide throughout the body. Hemoglobin molecule consists of four polypeptide_x005F_x000D_ subunitstwo identical α-globin chains and two identical β-globin chains,_x005F_x000D_ covalently bound with a heme prostetic pigments. The b-like globin genes_x005F_x000D_ located on chromosome 11p15.5 and α-like globin genes located on chromosome_x005F_x000D_ 16p13.3 are responsible for synthesis of globin chains of Hemoglobins._x005F_x000D_ Mutations of these genes cause hypochromic microcytic hemolytic anemia_x005F_x000D_ including α-thalassemiaβ-thalassemia and some other types.Thalassemia is_x005F_x000D_ among the most common inherited diseases worldwideit has been estimated_x005F_x000D_ that 7% of the world’s population are carriers for different inherited_x005F_x000D_ disorders of hemoglobin. There are certain mutations responsible for >90%_x005F_x000D_ thalassemia cases and about 10% mutations which are unknown or considered as_x005F_x000D_ very rare ones. Molecular defects of α-thalassemia are mainly associated with_x005F_x000D_ deletions or mutations of one or more of the α-globin genesof which now_x005F_x000D_ more than 50 known deletional mutations have been discovered. In_x005F_x000D_ β-thalassemiamore than 200 point mutations andrarely deletionshave been_x005F_x000D_ reported. The list of Hb mutations is updated at http://globin.bx.psu.edu/hbvar/._x005F_x000D_ Hemoglobinthalassemia

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Trích dẫn bài báo

Le Phan Minh Triet, Phan Thi Thuy Hoa, Bruno Masala. (2012). Hemoglobin and thalassemia. Tạp chí Y Dược học, , 101. DOI: 10.34071/jmp.2012.1e.16

Trong số này

Tạp chí Y Dược học thuộc Trường Đại học Y Dược- Đại học Huế được phép hoạt động báo chí theo giấy phép số 1720/GP-BTTTT ngày 15 tháng 11 năm 2010 và được Bộ Khoa học – Công nghệ cấp mã số ISSN 1859-3836 theo Quyết định số 009/TTKHCN-ISSN ngày 22 tháng 03 năm 2011

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