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Parathyroid Hormone-Related Changes of Bone Structure.

M Kužma1, P Jackuliak, Z Killinger

  • 15th department of Internal Medicine, Comenius University Faculty of Medicine, University Hospital Bratislava, Bratislava, Slovakia. martin.kuzma@fmed.uniba.sk.

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|May 3, 2022
PubMed
Summary
This summary is machine-generated.

Primary hyperparathyroidism (PHPT) affects bone health, impacting both cortical and trabecular bone. Trabecular bone score (TBS) may help assess fracture risk in PHPT patients.

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Area of Science:

  • Endocrinology
  • Bone Metabolism
  • Mineral Homeostasis

Background:

  • Parathyroid hormone (PTH) regulates calcium and phosphate, influencing bone resorption via osteoclasts and osteoblasts.
  • Primary hyperparathyroidism (PHPT) can lead to skeletal and renal complications, with increasing prevalence of asymptomatic forms.
  • Fracture risk assessment in PHPT requires tools beyond bone mineral density (BMD), as both cortical and trabecular bone are affected.

Purpose of the Study:

  • To evaluate the utility of Trabecular bone score (TBS) in assessing fracture risk in patients with Primary hyperparathyroidism (PHPT).
  • To explore the relationship between TBS, BMD, and high-resolution peripheral quantitative computed tomography (HR-pQCT) parameters in PHPT.
  • To review the impact of PHPT treatment on TBS and bone microarchitecture.

Main Methods:

  • Analysis of TBS in relation to vertebral fractures in PHPT patients, independent of BMD, age, BMI, and gender.
  • Correlation of TBS with HR-pQCT parameters assessing trabecular and cortical bone compartments.
  • Review of studies investigating the effects of PHPT treatment on TBS and bone microarchitecture, including secondary hyperparathyroidism due to vitamin D deficiency.

Main Results:

  • TBS is associated with vertebral fractures in PHPT, suggesting its value in fracture risk assessment.
  • TBS demonstrates correlations with HR-pQCT-derived microarchitectural parameters.
  • Treatment for vitamin D deficiency in secondary hyperparathyroidism shows improvement in TBS and bone microarchitecture.

Conclusions:

  • Trabecular bone score (TBS) is a valuable tool for estimating fracture risk in Primary hyperparathyroidism (PHPT), complementing BMD measurements.
  • TBS reflects changes in both trabecular and cortical bone microarchitecture.
  • Further research is needed on the effects of PHPT treatment on TBS, though vitamin D repletion improves bone microarchitecture.