Association analysis of PON polymorphisms in sporadic ALS in a Chinese population.

Single nucleotide polymorphisms (SNPs) of the paraoxonase gene family (ordered PON1, PON2, and PON3) have been associated with the risk of developing sporadic amyotrophic lateral sclerosis (SALS) in Caucasian populations. However, this association has yet to be confirmed in Chinese SALS patients. Nine SNPs across the PON gene cluster (i.e., rs662, rs705381, rs705382, rs854548, rs854560, rs7493, rs11981433, rs757158, and rs10487132) were analyzed in a large cohort consisting of 373 SALS patients and 248 controls from Southwest China. The data from the present study suggest that these SNPs of the PON gene cluster do not contribute to the risk for developing SALS in a Chinese population.