Bone biomarkers in post-polio clinic patients

Area of Science:

• Endocrinology
• Bone Metabolism
• Neurology

Background:

• Osteoporosis is prevalent in post-polio patients (30-50%).
• Bone biomarker levels and bisphosphonate response in post-polio osteoporosis are not well understood.

Purpose of the Study:

• To compare bone biomarker levels in post-polio patients with osteoporosis to controls.
• To assess bisphosphonate treatment effects on bone biomarkers in post-polio patients versus controls.

Main Methods:

• Retrospective chart review of post-polio and bone metabolism clinic patients.
• Exclusion of patients without osteoporosis or with incomplete data; bisphosphonate-untreated patients excluded for treatment analysis.

Main Results:

• Post-polio patients (n=25) and controls (n=31) had similar demographics.
• Lower parathyroid hormone (PTH) and serum bone turnover markers (sBTMs) were observed in post-polio patients.
• Bisphosphonate treatment reduced sBTMs in both groups, with a greater reduction in controls for osteocalcin and C-telopeptide.

Conclusions:

• Post-polio osteoporosis is associated with reduced bone turnover.
• Bone turnover markers show potential for monitoring bisphosphonate treatment response in post-polio patients.