Skeletal manifestations in pediatric and adult patients with Niemann Pick disease type B

Melissa P. Wasserstein, James Godbold, Margaret M. McGovern

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Introduction: Niemann-Pick disease (NPD) due to acid sphingomyelinase deficiency is a lipid storage disease resulting from the accumulation of sphingomyelin, predominantly within cells of the monocyte-macrophage system. In contrast to other lysosomal storage disorders, skeletal involvement in NPD has not been systematically studied. Methods: Pediatric and adult NPD-B patients underwent medical histories and physical examinations, DEXA scans to measure bone mineral content (BMC), and bone mineral density (BMD) and computed tomography scan or MRI of the abdomen for spleen volume. Z and/or T scores were calculated for the DEXA results. For the pediatric patients adjusted mean BMC (g) and BMD (g/cm2) of the lumbar spine, hip, and femoral neck was compared to control subjects. For determination of the relationship between spleen volume and lumbar spine BMD Z score, linear correlation analyses were performed. Results: Lumbar spine Z scores for pediatric patients ranged from 0.061 to -4.879. Statistically significant decreases were observed for the adjusted mean BMC and BMD at the lumbar spine, hip, and femoral neck between the pediatric NPD-B cohort and control subjects. Most NPD-B adults were osteopenic or osteoporotic at one or more sites according the WHO classification of BMD. In NPD-B patients, the degree of splenomegaly was inversely correlated with lumbar spine BMD Z scores. Conclusion: Skeletal involvement is a common and previously unrecognized manifestation of NPD-B. The association between splenomegaly and BMD lends further support to spleen size as an indicator of disease severity.

Original languageEnglish (US)
Pages (from-to)123-127
Number of pages5
JournalJournal of Inherited Metabolic Disease
Volume36
Issue number1
DOIs
StatePublished - Jan 2013
Externally publishedYes

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Type B Niemann-Pick Disease
Niemann-Pick Diseases
Bone Density
Pediatrics
Spine
Spleen
Femur Neck
Splenomegaly
Hip
Type A Niemann-Pick Disease
Sphingomyelins
Photon Absorptiometry
Abdomen
Physical Examination
Monocytes

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics

Cite this

Skeletal manifestations in pediatric and adult patients with Niemann Pick disease type B. / Wasserstein, Melissa P.; Godbold, James; McGovern, Margaret M.

In: Journal of Inherited Metabolic Disease, Vol. 36, No. 1, 01.2013, p. 123-127.

Research output: Contribution to journalArticle

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