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[Ca and Vit D derivatives on stage of renal failure]

Yoshifumi Ubara1, Kenmei Takaichi

  • 1Kidney Center, Toranomon Hospital.

Clinical Calcium
|March 19, 2005
PubMed

Insights

Early changes in intact parathyroid hormone (PTH) and 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) occur with declining kidney function. Monitoring these levels is crucial for managing mineral and bone disorders in chronic kidney disease progression.

Area of Science:

  • Nephrology and Endocrinology
  • Mineral and Bone Metabolism in Chronic Kidney Disease

Context:

  • Chronic kidney disease (CKD) significantly impacts mineral and bone metabolism.
  • Early detection of hormonal changes is vital for timely intervention.
  • Understanding the sequential alterations in intact parathyroid hormone (PTH) and 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) is critical.

Purpose:

  • To investigate the early changes in intact PTH and 1,25(OH)2D3 levels relative to serum creatinine (s-Cr) in CKD.
  • To establish the relationship between declining kidney function and key hormonal markers of mineral and bone disease.

Summary:

  • Intact PTH levels show an early increase starting at s-Cr levels of 1.0-1.3 mg/dL.
  • 1,25(OH)2D3 levels begin to decrease later, from s-Cr levels of 1.3-1.6 mg/dL.
  • These hormonal shifts precede the need for interventions like calcium and vitamin D derivatives in end-stage renal disease.

Impact:

  • Provides a clearer timeline for hormonal dysregulation in early to moderate CKD.
  • Highlights the importance of monitoring PTH and vitamin D metabolites to anticipate and manage complications.
  • Informs clinical practice regarding the progression of mineral and bone disorders in kidney disease patients.

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