G6PD deficiency: a polymorphism balanced by heterozygote advantage against malaria
نویسندگان
چکیده
منابع مشابه
Polymorphism analysis of malaria susceptibility biomarkers in G6PD deficiency patients
Abstract Background: Several studies suggested that some traits and polymorphisms in human genome such as G6PD deficiency and other genes have protective effects on susceptibility to malaria infection . Methods: In present study we investigated the prevalence of TNF [1] -244GgA, TNF [1] - 308 GgA,TNF [1] -238GgA, NOS2-954GgC, MBL54GgA, MBL 57GgA, MBL IVSI - 5 GgA polymorphisms and G6P...
متن کاملHeterozygote advantage and the maintenance of polymorphism for multilocus traits.
Explaining how polymorphism is maintained in the face of selection remains a puzzle since selection tends to erode genetic variation. Provided an infinitely large unsubdivided population and no frequency-dependance of selective values, heterozygote advantage is the text book explanation for the maintenance of polymorphism when selection acts at a diallelic locus. Here, we investigate whether th...
متن کاملHeterozygote Advantage for Fecundity
Heterozygote advantage, or overdominance, remains a popular and persuasive explanation for the maintenance of genetic variation in natural populations in the face of selection. However, despite being first proposed more than 80 years ago, there remain few examples that fit the criteria for heterozygote advantage, all of which are associated with disease resistance and are maintained only in the...
متن کاملX-Linked G6PD Deficiency Protects Hemizygous Males but Not Heterozygous Females against Severe Malaria
BACKGROUND Glucose-6-phosphate dehydrogenase (G6PD) is important in the control of oxidant stress in erythrocytes, the host cells for Plasmodium falciparum. Mutations in this enzyme produce X-linked deficiency states associated with protection against malaria, notably in Africa where the A- form of G6PD deficiency is widespread. Some reports have proposed that heterozygous females with mosaic p...
متن کاملG6PD deficiency.
T HIRTY-FIVE YEARS ago Dr William Dameshek, the first editor of the emerging journal Blood, invited me to write a review on “The Hemolytic Effect of Primaquine.”’ At the time, primaquine sensitivity, which had just recently been shown to be caused by a deficiency of the enzyme glucose-6-phosphate dehydrogenase (G6PD); represented a unique example of an inherited deficiency of an enzyme that cau...
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ژورنال
عنوان ژورنال: The Lancet Haematology
سال: 2015
ISSN: 2352-3026
DOI: 10.1016/s2352-3026(15)00191-x