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Haemoglobinopathy is a kind of genetic defect that results in abnormal structure of one of the globin chains of thehemoglobinmolecule. Hemoglobinopathies are inherited single-gene disorders; in most cases, they are inherited as autosomal co-dominant traits. Common hemoglobinopathies include sickle-cell disease. It is estimated that 7% of world's population (420 million) are carriers, with 60% of total and 70% pathological being in Africa.
Haemoglobin Functions :Transport of oxygen from the lungs to the tissues. This is due to the peculiar cooperation of the globin chains that allows the molecule to take in more oxygen where there is increased oxygen and to release oxygen in low concentration of oxygen.Transport of carbondioxide: from the tissue to the lungs.the end product of tissue metabolism is acidic which increases the hydrogen ion in solution. the hydrogen ion combines with bicarbonates to produce.
Symptoms and signs: Blood tests (Findings).
Statistics: Haemoglobin disorders were originally endemic in 60% of 229 countries, potentially affecting 75% of births, but are now sufficiently common in 71% of countries among 89% of births (either in the whole population or among minorities) to require policy-makers to consider the most appropriate strategy for treatment and prevention.