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Serum calcification propensity and its association with biochemical parameters and bone mineral density in
Hyunsook Kim1, Ae Jin Kim2, Han Ro2
1Department of Health Sciences and Technology, Gachon University, Incheon, Republic of Korea.
Insights
Serum calcification propensity marker T50 shows moderate links with mineral and inflammatory factors in hemodialysis patients. However, T50 did not conclusively associate with bone mineral density (BMD) in this group.
Area of Science:
- Nephrology
- Biochemistry
- Bone Metabolism
Background:
- T50 is a novel serum marker indicating calcification propensity.
- Shorter T50 correlates with higher calcification risk, linked to cardiovascular disease and mortality in chronic kidney disease patients.
- Factors influencing T50 and its relation to bone mineral density (BMD) in hemodialysis (HD) patients remain unclear.
Purpose of the Study:
- To investigate the factors associated with T50.
- To examine the correlation between T50 and BMD in HD patients.
Main Methods:
- Cross-sectional study of 184 HD patients.
- Patients categorized into T50 tertiles for comparison of demographic and disease indicators.
- Linear regression analysis employed to assess T50's association with hip and spinal BMD.
Main Results:
- T50 showed moderate associations with serum phosphate, albumin, and high-sensitivity C-reactive protein.
- A weak, unadjusted association was observed between T50 and total hip BMD (p=0.04).
- No statistically significant associations were found between T50 and total hip, femoral neck, or spinal BMD in multivariable models.
Conclusions:
- T50 is moderately linked to mineral and inflammatory markers in HD patients.
- T50 did not demonstrate a conclusive association with BMD in this population.
- Further large-scale studies are needed to determine T50's utility in assessing BMD beyond established risk factors in HD patients.
Background:
T50 is a novel serum-based marker that assesses the propensity for calcification in serum. A shorter T50 indicates a greater propensity to calcify and has been associated with cardiovascular disease and mortality among patients with chronic kidney disease. The factors associated with T50 and the correlation between T50 and bone mineral density (BMD) are unknown in hemodialysis (HD) patients.
Methods:
This cross-sectional study included 184 patients undergoing HD. Individuals were grouped into tertiles of T50 to compare the demographic and disease indicators of the tertiles. Linear regression was used to evaluate the association between T50 and hip and spinal BMD in a multivariate model.
Results:
Mineral and inflammatory parameters, including serum phosphate (r = -0.156, p = 0.04), albumin (r = 0.289, p < 0.001), and high-sensitivity C-reactive protein (r = -0.224, p = 0.003) levels, were associated with T50. We found a weak association between T50 and BMD in the total hip area in the unadjusted model (β = 0.030, p = 0.04) but did not find a statistically significant association with the total hip (β = 0.017, p = 0.12), femoral neck (β = -0.001, p = 0.96), or spinal BMD (β = 0.019, p = 0.33) in multivariable-adjusted models.
Conclusion:
T50 was moderately associated with mineral and inflammatory parameters but did not conclusively establish an association with BMD in HD patients. Broad-scale future studies should determine whether T50 can provide insights into BMD beyond traditional risk factors in this population.
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