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Thyroid gland

Genetic insight into antithyroid drug-induced agranulocytosis in a European population

The HLA allele HLA-B*27:05 on chromosome 6 is associated with antithyroid drug-induced agranulocytosis in white European individuals, according to a new genome-wide association study (GWAS). Three single nucleotide polymorphisms (SNPs; rs652888, rs199564443 and rs1071816) associated with this potentially life-threatening adverse effect of treating hyperthyroidism were also identified, one of which (rs1071816) was in moderate linkage disequilibrium with HLA-B*27:05. The findings, which complement two earlier GWAS in Asian populations, are a step towards precision medicine for antithyroid drug-induced agranulocytosis, which could see carriers of HLA-B*27:05 or the three SNPs being offered alternative treatments for hyperthyroidism.

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    Hallberg, P et al. Genetic variants associated with antithyroid drug-induced agranulocytosis: a genome-wide association study in a European population. Lancet Diabetes Endocrinol. http://dx.doi.org/10.1016/S2213-8587(16)00113-3 (2016)

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Holmes, D. Genetic insight into antithyroid drug-induced agranulocytosis in a European population. Nat Rev Endocrinol 12, 374 (2016). https://doi.org/10.1038/nrendo.2016.81

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