This is the blog for GW students taking Human Evolutionary Genetics. This site is for posting interesting tidbits on: the patterns and processes of human genetic variation;human origins and migration; molecular adaptations to environment, lifestyle and disease; ancient and forensic DNA analyses; and genealogical reconstructions.

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GWHEG figure

Monday, April 2, 2018

The impact of consanguinity on the frequency of inborn errors of metabolism


This study investigated the frequency of consanguinity among parents of newborns with inborn errors metabolism (IRM), and integrated these data with medical records of  parents on consanguinity in Denmark. The data were obtained through national screening program of newborns over a period of 15 years. 196 newborns appeared to have an IEM of whom 155 from Denmark were included in the analysis. The medical  records revealed that among ethnic Danes only two cases of consanguinity were identified among 93 families versus 20 cases identified among ethnic minority (Pakistani, Afghan, Turkish and Arab origin) suggesting a higher rate of consanguinity among these minorities. The integration of both data showed that the frequency of IEM was 25.5 times higher among children from ethnic minority compared to Danes, which indicates a strong positive correlation between consanguinity and the risk of inborn errors of metabolism.




Sylvain

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