Lack of association of superoxide dismutase I/D variant with osteopenia/osteoporosis in Turkish postmenopausal women


NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS, vol.42, no.9, pp.671-682, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 9
  • Publication Date: 2023
  • Doi Number: 10.1080/15257770.2023.2185785
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Chemical Abstracts Core, Chimica, EMBASE, MEDLINE
  • Page Numbers: pp.671-682
  • Keywords: Osteoporosis, osteopenia, superoxide dismutase, PCR, insertion, deletion, variant, BONE-MINERAL DENSITY, AGE-OF-ONSET, OSTEOPOROSIS, SOD1, POLYMORPHISMS, PROMOTER, GENE
  • Ondokuz Mayıs University Affiliated: Yes


Background: Osteoporosis (OP) is a common systemic, metabolic bone disease that affects 40% of postmenopausal women. Oxidative stress (OS) is caused by reactive oxygen species (ROS), inhibits osteoblast differentiation and causes apoptosis in osteoblastic cells. Superoxide dismutase (SOD) reduces OS by playing a role in the reduction and defense of intracellular ROS. Therefore, the purpose of this study was to investigate the relationship between osteopenia/OP and the SOD1 50-bp insertion/deletion (I/D) variant in Turkish postmenopausal women. Methods: A total of 180 women participated in this study includa,-ng 89 osteopenia/OP postmenopausal women and 91 healthy postmenopausal women. T-score > -1 standard deviation (SD) defined normal bone mass, T-score between -1 and -2.5 SD defined osteopenia, T-score >= -2.5 SD was defined as OP. DNA was extracted from all subjects and the SOD1 I/D variant genotyped by PCR. The results of the analyses were evaluated for statistical significance. Results: The mean age of 89 osteopenia/OP patients aged 45 to 74 was 58.57 +/- 6.57. There was no D/D homozygous genotype in the patient and control groups. The prevalence of genotypes of I/I, and I/D, profiles for the SOD1 I/D variant were 76.4%, and 23.6% respectively, in patients, and 72.5%, and 27.5% respectively, in the control group. When the patient group and control group were compared, the SOD1 I/D genotype distribution and allele frequencies did not show a significant difference between the groups (p > 0.05). Conclusion: Our results showed that the SOD1 I/D variant may not be considered a determining factor in the development of osteopenia/OP in a Turkish population sample. However, ethnic differences, gene-gene, and gene-environment interactions should not be ignored.