Journal of nephrology · 2007
Chloride, but not unmeasured anions, is correlated with renal bone disease markers.
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Libório Alexandre Braga, Noritomi Danilo Teixeira, Martins de Castro Manuel Carlos
Аннотация
BACKGROUND: Many factors are involved in the progression of secondary hyperparathyroidism, including acidosis. Stewart's approach has made it possible to identify real determinants of acid-base status, making chloride a real etiological factor of acid-base disturbances. In addition, it has allowed the quantification of the components of these disturbances, especially the unmeasured anions. We performed a cross-sectional study to quantify each component of acidosis in hemodialysis patients and correlate them with renal bone disease biochemical markers.
METHODS: Sixty maintenance hemodialysis patients and 14 controls were enrolled in this study. Each acid-base determinant was quantified and correlated in multivariate regression with intact serum parathormone and bone-specific alkaline phosphatase, adjusting to other variables.
RESULTS: Hemodialysis patients were more acidotic than controls, mainly due to the retention of unmeasured anions, hyperchloremia and hyperphosphatemia. In multivariate regression analysis, the only acid-base determinants independently correlated with bone markers were chloride, calcium and phosphorus (beta=0.537, beta=-0.256 and beta=-0.242, respectively). Although unmeasured anions were a major component of acidosis, they had no correlation with these markers.
CONCLUSION: Although unmeasured anions are considered the main component of acidosis in hemodialysis patients, serum chloride was the only acid-base determinant correlated with bone markers.
METHODS: Sixty maintenance hemodialysis patients and 14 controls were enrolled in this study. Each acid-base determinant was quantified and correlated in multivariate regression with intact serum parathormone and bone-specific alkaline phosphatase, adjusting to other variables.
RESULTS: Hemodialysis patients were more acidotic than controls, mainly due to the retention of unmeasured anions, hyperchloremia and hyperphosphatemia. In multivariate regression analysis, the only acid-base determinants independently correlated with bone markers were chloride, calcium and phosphorus (beta=0.537, beta=-0.256 and beta=-0.242, respectively). Although unmeasured anions were a major component of acidosis, they had no correlation with these markers.
CONCLUSION: Although unmeasured anions are considered the main component of acidosis in hemodialysis patients, serum chloride was the only acid-base determinant correlated with bone markers.