Arylsulphatase A Pseudodeficiency (ARSA-PD), hypertension and chronic renal disease in Aboriginal Australians

Sci Rep. 2018 Jul 19;8(1):10912. doi: 10.1038/s41598-018-29279-9.

Abstract

Chronic renal disease (CRD) associated with cardiovascular disease (CVD) and/or type 2 diabetes (T2D) is a significant problem in Aboriginal Australians. Whole exome sequencing data (N = 72) showed enrichment for ClinVar pathogenic variants in gene sets/pathways linking lipoprotein, lipid and glucose metabolism. The top Ingenuity Pathway Analysis canonical pathways were Farsenoid X Receptor and Retinoid Receptor (FXR/RXR; (P = 1.86 × 10-7), Liver X Receptor and Retinoid Receptor (LXR/RXR; P = 2.88 × 10-6), and atherosclerosis signalling (P = 3.80 × 10-6). Top pathways/processes identified using Enrichr included: Reactome 2016 chylomicron-mediated lipid transport (P = 3.55 × 10-7); Wiki 2016 statin (P = 8.29 × 10-8); GO Biological Processes 2017 chylomicron remodelling (P = 1.92 × 10-8). ClinVar arylsulfatase A pseudodeficiency (ARSA-PD) pathogenic variants were common, including the missense variant c.511 G > A (p.Asp171Asn; rs74315466; frequency 0.44) only reported in Polynesians. This variant is in cis with known ARSA-PD 3' regulatory c.*96 A > G (rs6151429; frequency 0.47) and missense c.1055 A > G (p.Asn352Ser; rs2071421; frequency 0.47) variants. These latter two variants are associated with T2D (risk haplotype GG; odds ratio 2.67; 95% CI 2.32-3.08; P = 2.43 × 10-4) in genome-wide association data (N = 402), but are more strongly associated with quantitative traits (DBP, SBP, ACR, eGFR) for hypertension and renal function in non-diabetic than diabetic subgroups. Traits associated with CVD, CRD and T2D in Aboriginal Australians provide novel insight into function of ARSA-PD variants.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Australia / ethnology
  • Case-Control Studies
  • Cerebroside-Sulfatase / deficiency
  • Cerebroside-Sulfatase / genetics*
  • Exome Sequencing
  • Female
  • Gene Regulatory Networks
  • Genetic Predisposition to Disease
  • Genome-Wide Association Study
  • Humans
  • Hypertension / genetics*
  • Male
  • Native Hawaiian or Other Pacific Islander / genetics*
  • Odds Ratio
  • Polymorphism, Single Nucleotide
  • Renal Insufficiency, Chronic / genetics*

Substances

  • Cerebroside-Sulfatase