Obesity in the Balinese is associated with FTO rs9939609 and rs1421085 single nucleotide polymorphisms

Lidwina Priliani; Sukma Oktavianthi; Ria Hasnita; Hazrina T Nussa; Rut C Inggriani; Clarissa A Febinia; Anom Bowolaksono; Rini Puspitaningrum; Rully A Nugroho; Ketut Suastika; Safarina G Malik

doi:10.7717/peerj.8327

Obesity in the Balinese is associated with FTO rs9939609 and rs1421085 single nucleotide polymorphisms

PeerJ. 2020 Jan 3:8:e8327. doi: 10.7717/peerj.8327. eCollection 2020.

Authors

Affiliations

¹ Eijkman Institute for Molecular Biology, Jakarta, Indonesia.
² Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jakarta, Indonesia.
³ Department of Surgery, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.
⁴ Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia.
⁵ Faculty of Biology, Satya Wacana Christian University, Salatiga, Indonesia.
⁶ Division of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, Udayana University, Denpasar, Indonesia.

Abstract

Obesity prevalence is increasing worldwide, including in the Bali Province, Indonesia, a popular tourism destination area. The common single nucleotide polymorphisms (SNPs) rs9939609 and rs1421085 of the fat mass and obesity-associated (FTO) gene have been repeatedly reported as one of the important obesity genetic risk factors. We have examined the associations of FTO rs9939609 and rs1421085 SNPs with obesity in the 612 unrelated Balinese subjects living in urban and rural areas. Linear and logistic regression analyses with adjustment for age and gender were employed to investigate the association between FTO genotypes, haplotypes and obesity parameters. We found that the FTO SNPs genotypes increased BMI by 1.25 kg/m² (p = 0.012) for rs9939609 AA and 1.12 kg/m² (p = 0.022) for rs1421085 CC, particularly in females and in rural population. Subjects carrying these genotypes also showed a tendency to maintain high BMI, regardless of their age. Our result showed that the FTO rs9939609 and rs1421085 risk alleles were associated with increased BMI and obesity in the Balinese.

Keywords: BMI; Balinese; FTO; Obesity; SNPs; rs1421085; rs9939609.

Grants and funding

The research was supported by the block grant from the Government of Republic of Indonesia through the Ministry of Research and Technology for the Eijkman Institute for Molecular Biology. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.