Bone mass and turnover in fibromyalgia

Area of Science:

• Bone Metabolism and Health
• Rheumatology
• Fibromyalgia Research

Background:

• Physical inactivity is a known contributor to accelerated bone loss.
• Fibromyalgia is characterized by reduced physical activity levels in patients.
• Understanding bone health in fibromyalgia is crucial for comprehensive patient care.

Purpose of the Study:

• To determine bone mass and markers of bone metabolism in premenopausal women with fibromyalgia.
• To compare bone health parameters between fibromyalgia patients and healthy controls.
• To investigate the relationship between physical activity and bone metabolism in fibromyalgia.

Main Methods:

• Assessed bone mineral density (lumbar spine and femoral neck) in 12 premenopausal women with fibromyalgia and age-matched controls.
• Measured serum levels of alkaline phosphatase, osteocalcin, ionized calcium, and phosphate.
• Analyzed urinary excretion of hydroxyproline and calcium relative to creatinine.

Main Results:

• No significant differences were found in bone mineral density (BMD) between groups.
• Serum markers of bone metabolism (alkaline phosphatase, osteocalcin, calcium, phosphate) were comparable.
• Significantly higher urinary hydroxyproline and calcium excretion relative to creatinine was observed in fibromyalgia patients (p=0.01).
• Lower urinary creatinine excretion in fibromyalgia patients (p=0.02) suggested reduced physical activity.

Conclusions:

• Bone mass and turnover are generally not affected in premenopausal women with fibromyalgia.
• Elevated urinary hydroxyproline and calcium excretion may be linked to lower physical activity levels in this population.
• Fibromyalgia itself does not appear to directly impair bone metabolism in premenopausal women.