منابع مشابه
A Measure of Consanguinity
A natural numerical measure of consanguinity is developed that applies to individuals with arbitrary multiple kinship connections. For simple relationships the consanguineal distance specializes to the civil degree, less two if the relationship goes through full siblings. This measure is deduced from axioms motivated by an heuristic picture of blood mixtures. The formula suggests a quantum mech...
متن کاملConsanguinity and apnea of prematurity.
Consanguinity, marriage between relatives, has been associated with perinatal mortality and morbidity. Apnea of prematurity is defined as the cessation of breathing for longer than 20 seconds or that of any duration if accompanied by cyanosis and sinus bradycardia, for infants born before 37 weeks of gestation. The objective of the study was to examine the association between consanguinity and ...
متن کاملConsanguinity and chromosomal abnormality
BACKGROUND: Consanguinity is defined as the marriage between close relatives. The deleterious effects associated with consanguinity may be caused by the expression of rare recessive genes inherited from common ancestors. AIMS AND OBJECTIVES: The present study was undertaken to analyze the effect of consanguinity on chromosomal abnormality (CA). METHODS AND MATERIALS: During last 6 years period,...
متن کاملConsanguinity and child health
Marriage between close biological kin is widely regarded as genetically disadvantageous in contemporary western societies, but consanguineous unions remain preferential in north africa, the Middle east and large parts of asia, with marriage between first cousins particularly popular. Many major populations also are subdivided into endogamous communities that have distinctive breeding pools. it ...
متن کاملConsanguinity and primary immunodeficiencies.
Primary immunodeficiencies (PIDs) are a heterogeneous group of genetic disorders caused by defects in the immune system that predispose patients to infections, autoimmune diseases, lymphoproliferation and malignancies. Most PIDs are inherited in an autosomal recessive pattern; therefore, they are more common in areas with high rates of consanguineous marriage. Reports about PIDs from these area...
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ژورنال
عنوان ژورنال: Nature
سال: 1875
ISSN: 0028-0836,1476-4687
DOI: 10.1038/012124b0