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Published on: August 29, 2025
Update on cystic fibrosis-related bone disease: a special focus on children
Isabelle Sermet-Gaudelus1, Mireille Castanet, George Retsch-Bogart
1Centre de Référence et de Compétence en Mucoviscidose, Hopital Necker-Enfants Malades, INSERM U 845, Université René Descartes, Paris, France.
Insights
Cystic Fibrosis (CF) patients often have low bone mineralization, with significant rates of osteopenia and osteoporosis in adults. Early monitoring and preventive strategies from childhood are crucial for bone health in CF.
Area of Science:
- Pediatric Endocrinology
- Pulmonology
- Bone Metabolism
Background:
- Cystic Fibrosis (CF) is associated with a high prevalence of low bone mineralization in adults, including osteopenia (up to 85%) and osteoporosis (10-34%).
- Bone health in children with CF is less clear due to varying study methodologies and growth-related factors.
- Known risk factors for poor bone health in CF include malnutrition, inflammation, vitamin deficiencies (D and K), hormonal imbalances, and medication side effects.
Purpose of the Study:
- To highlight the significant burden of low bone mineralization in cystic fibrosis patients.
- To emphasize the critical role of puberty in bone mass acquisition and the need for careful monitoring.
- To advocate for early and continuous strategies to prevent and manage CF-related bone disease.
Main Methods:
- Review of existing literature on bone health in pediatric and adult cystic fibrosis populations.
- Identification of established risk factors contributing to bone disease in CF.
- Analysis of the importance of bone mineral density monitoring and preventive care.
Main Results:
- Adult CF patients exhibit a high prevalence of osteopenia and osteoporosis.
- Discordant findings in pediatric studies suggest methodological challenges.
- Puberty represents a key period for achieving peak bone mass, requiring focused attention.
Conclusions:
- Optimizing bone health in cystic fibrosis necessitates proactive management from childhood through adolescence.
- Regular bone mineral density monitoring is essential for early detection and intervention.
- Comprehensive strategies addressing nutritional, inflammatory, and hormonal factors are vital to minimize bone disease in CF patients.
Abstract:
A high prevalence of low bone mineralization is documented in adult patients with cystic fibrosis (CF). Osteopenia is present in up to 85% of adult patients and osteoporosis in 10% to 34%. In children, study results are discordant probably because of comparisons to different control populations and corrections for bone size in growing children. Malnutrition, inflammation, vitamin D and vitamin K deficiency, altered sex hormone production, glucocorticoid therapy, and physical inactivity are well known risk factors for poor bone health. Puberty is a critical period for bone mineralization and requires a careful follow-up to achieve optimal bone peak mass. Strategies for optimizing bone health, such as monitoring bone mineral density (BMD) and providing preventive care are necessary from childhood through adolescence to minimize CF-related bone disease in adult CF patients.
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