Changes in biomarkers of bone resorption over the first six months after pediatric hematopoietic cell transplantation

L. E. Polgreen, K. Rudser, M. Deyo, A. Smith, K. S. Baker, A. Petryk

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Bone loss has been observed within the first six months after HCT in both children and adults. While there is some evidence that bone formation may be reduced in children after HCT, it is currently unknown whether bone resorption is increased. The objective of this prospective study was to evaluate changes in markers of bone resorption over the first six months after pediatric HCT. Twenty-six participants (eight females) aged 10.9 ± 3.4 yr entered the study prior to HCT. Bone resorption was measured by urine DPD and PYD, and by plasma NTX and CTX. Seventeen participants who completed day +30 visit and either day +100 or +180 visits were included in the analysis. DPD increased between days +30 and +100 (mean change, 11.3 nmol/nmol creatinine; p = 0.012) and between days +30 and +180 (13.7 nmol/nmol creatinine; p = 0.036). PYD increased between days +30 and +100 (32 nmBCE/L; p = 0.019). CTX increased between baseline and day +100 (5.9 μg/L; p = 0.012). Changes in NTX levels were not statistically significant. This study shows that markers of bone resorption increase in children after HCT, suggesting that increased resorption may be a contributing factor to the pathophysiology of bone loss after pediatric HCT.

Original languageEnglish (US)
Pages (from-to)852-857
Number of pages6
JournalPediatric transplantation
Volume16
Issue number8
DOIs
StatePublished - Dec 2012

Keywords

  • bone
  • bone marrow transplantation
  • bone resorption
  • osteoporosis
  • pediatric

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