Document Detail


Bone mineral density in children, adolescents and adults with glycogen storage disease type Ia: a cross-sectional and longitudinal study.
MedLine Citation:
PMID:  12971425     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The occurrence of (symptoms related to) osteopenia is a known complication in glycogen storage disease type Ia (GSD Ia) patients. However, only limited information is available about bone mineral density (BMD). Using dual energy x-ray absorptiometry, we studied both cross-sectional and longitudinal lumbar spine areal BMD (BMD(areal) in g/cm2), areal BMD corrected for delayed bone maturation (BMD(bone age) in g/cm2), and volumetric BMD (BMD(vol) in g/cm3). Prepubertal GSD Ia patients (n = 8) had normal BMD (median z-scores BMD(areal) -0.6, BMD(bone age) -0.5 and BMD(vol) -0.5), whereas adolescent patients (n = 12) and adult patients (n = 9) had significantly reduced BMD (BMD(areal) -2.3, BMD(bone age) -1.6, BMD(vol) -2.0, and BMD(areal) -1.9, BMD(vol) -1.5, respectively). Our longitudinal study, showing a stable BMD(areal) but a trend to a decrease in BMD(vol) in prepubertal patients during follow-up, did not clarify whether the difference in BMD between prepubertal and adolescent/adult patients reflects a diminished accretion of BMD during childhood or reflects historical differences in treatment. In adolescent and adult GSD Ia patients, BMD(areal) and BMD(vol) were reduced but stable during follow-up. Especially patients with delayed bone maturation were at risk for reduced BMD. No correlation between parameters of metabolic control and BMD could be detected. Daily calcium intake was within recommended allowances ranges. Abnormal biochemical results included hypomagnesaemia (29%), hypercalciuria (34%) and reduced tubular resorption of phosphate (21%). Although the underlying pathophysiology of reduced BMD in GSD Ia remains unsolved, metabolic control should be optimized to correct as much as possible metabolic and endocrine abnormalities that may influence both bone matrix formation and bone mineral accretion.
Authors:
J P Rake; G Visser; D Huismans; S Huitema; E van der Veer; D A Piers; G P A Smit
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of inherited metabolic disease     Volume:  26     ISSN:  0141-8955     ISO Abbreviation:  J. Inherit. Metab. Dis.     Publication Date:  2003  
Date Detail:
Created Date:  2003-09-15     Completed Date:  2004-04-01     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7910918     Medline TA:  J Inherit Metab Dis     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  371-84     Citation Subset:  IM    
Affiliation:
Division of Metabolic Diseases, Department of Paediatrics, Beatrix Children's Hospital Groningen, The Netherlands. j.p.rake@bkk.azg.nl
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MeSH Terms
Descriptor/Qualifier:
Absorptiometry, Photon
Adolescent
Adult
Aging / metabolism
Bone Density*
Child
Child, Preschool
Cross-Sectional Studies
Female
Glycogen Storage Disease Type I / metabolism*,  physiopathology
Humans
Longitudinal Studies
Lumbar Vertebrae / metabolism
Male
Puberty

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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