PDHB and systemic lupus erythematosus: One researcher conducted a fine-mapping study of genetic loci and neighboring regions in European SLE samples, revealing an extended region of linkage disequilibrium (LD) (>200 kb) at 3p14.3, which includes the ABHD6, RPP14, PXK, and PDHB genes, which was extended on ABHD6, RPP14, PXK, and PDHB genes on 3p14.3.