Abstract
A heterozygous loss-of-function variant in lin-28 homolog A (LIN28A) was recently reported as a novel pathogenic gene in patients with PD from Korea. Two patients harboring LIN28A variants had early- or middle-aged-onset PD with good responses to levodopa. In the current study, we aimed to identify the prevalence of LIN28A variants among PD patients of Japanese origin. We performed genetic sequencing of 284 patients with early-onset PD. We then estimated the frequency and functional effect of each variant using prediction tools. We identified three different rare variants in LIN28A (rs4623750, c.228 + 49 C > T; rs199541048, c.*7 A > G; and rs4659441, c.*43 C > T). The frequency of each variant in the PD patients did not differ from that of the general population. No variants were identified in the amino acid-coding regions. Our results do not support a strong association of LIN28A with early-onset PD among Japanese patients.
Published Version
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