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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The beta+-IVS-I-6 (T-->C) mutation accounts for half of the thalassemia chromosomes in the Palestinian populations of the mountain regions.

A study of the spectrum of beta-thalassemia mutations in the southern part of the West Bank of the Palestinian Authority revealed the presence of 10 different beta-globin mutations. The study included 41 patients and 54 carriers of beta-thalassemia and sickle cell anemia. The spectrum of mutations observed was typically Mediterranean. However, their relative frequencies was unique. The predominant allele was IVS-I-6 (T-->C), with an exceptionally high frequency of 48.5% for this mutation. The homozygous IVS-I-6 patients had widely variable clinical presentations, from typical transfusion-dependent thalassemia major to non-transfusion-dependent thalassemia intermedia phenotype. Since it is so widespread in these West Bank populations, the IVS-I-6 mutation may date back to ancient times. The nonsense mutation at codon 37 (G-->A) was found at a relatively high frequency of 11.3%, supporting the hypothesis that it originated in this region. The other mutations, at decreasing frequencies ranging from 9.5-1.5%, were: IVS-I-110 (G-->A), frameshift codon 5 (- CT), IVS-I-1 (G-->A), IVS-II-1 (G-->A), Hb S [beta6(A3)Glu-->Val], frameshift codons 8/9 (+G), codon 39 (C-->T), and -30 (T-->A). Our findings will improve health care for the Palestinian population, and also has implications for the study of the origin and spread of thalassemia in the Middle East.[1]

References

  1. The beta+-IVS-I-6 (T-->C) mutation accounts for half of the thalassemia chromosomes in the Palestinian populations of the mountain regions. El-Latif, M.A., Filon, D., Rund, D., Oppenheim, A., Kanaan, M. Hemoglobin (2002) [Pubmed]
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