Blood concentrations of α-Klotho and FGF-23 exhibit no correlation with bone mineral density in elderly individuals

Abstract

Objective: To investigating the relationship between α-Klotho and FGF-23 with bone biochemical markers and bone density findings in extremely aged individuals. Methods: A total of 55 individuals with a mean age of 85.6 years were subjected to clinical, biochemical, and bone mineral density analyses and the enzyme-linked immunosorbent assay-based detection of α-Klotho and FGF-23. The mean, standard deviation, median, and interquartile ranges of the sample values were determined, and Spearman's test for association assessments was used for statistical analysis. Results: The study participants expressed median FGF-23 and α-Klotho levels of 69.81 RU/mL (51.43 RU/mL) and 733.43 pg/mL (360.83 pg/mL), respectively. The majority of the participants possessed osteopenia (54.5%) and a vitamin D deficiency (57%). The 25-hydroxyvitamin D concentrations ranged between 7.1 and 47.5ng/mL, with a median of 18.1ng/mL. Conclusion: No substantial associations were discovered between α-Klotho and FGF-23 levels and bone density in the study participants.

Keywords

• Biomarkers
• Klotho protein
• FGF-23 protein
• Human
• Bone density
• Aged
• Longevity