Digestive Diseases and Sciences

, Volume 53, Issue 5, pp 1240–1245

Bone Mineralization in Young Patients with Type 1 Diabetes Mellitus and Screening-identified Evidence of Celiac Disease

  • Daniel R. Diniz-Santos
  • Flávia Brandão
  • Luis Adan
  • Agnaluce Moreira
  • Eliézer J. Vicente
  • Luciana R. Silva
Original Paper

DOI: 10.1007/s10620-007-9988-9

Cite this article as:
Diniz-Santos, D.R., Brandão, F., Adan, L. et al. Dig Dis Sci (2008) 53: 1240. doi:10.1007/s10620-007-9988-9

Abstract

The aims of this study were to evaluate bone mineral density (BMD) and bone turnover markers in patients with type 1 diabetes and screening-identified evidence of celiac disease, i.e., celiac autoimmunity. We screened 50 consecutive type 1 diabetic patients for IgA antitissue transglutaminase to identify those with celiac autoimmunity. Eight seropositive patients were identified on this screening, and 12 patients matched for gender and age range were selected as a control group from among the type 1 diabetic patients without celiac autoimmunity. Patients and controls underwent dual-energy X-ray absorptiometry (DEXA) for measurement of bone mineral status and had their blood levels of osteocalcin, carboxy-terminal telopeptide of type I collagen (CTX), calcium, and phosphorus determined. BMD was further adjusted for height, weight, and pubertal stage. Radiographic and blood markers of bone mineralization were compared between patients and controls. BMD (Z-score) at the lumbar spine was −1.44 ± 0.5 SD for patients and 0.04 ± 0.2 SD for controls (= 0.02). Bone mineral content was 37.9 ± 4.5 g for patients and 49.4 ± 2.6 g for controls (= 0.049). Adjusted BMD was −0.62 ± 0.5 SD for patients and 0.81 ± 0.09 SD for controls (= 0.04). After adjustment, four patients and none of the controls presented BMD < −1 SD (P = 0.01). Osteocalcin, CTX, calcium, and phosphorus blood levels were not significantly different between patients and controls. Celiac autoimmunity is associated with reduced bone mineralization in type 1 diabetic patients. The pathophysiological mechanisms and clinical relevance of this finding remain to be further investigated.

Keywords

Celiac disease Type 1 diabetes Bone mineral density Osteopenia Osteocalcin 

Abbreviations

BMD

Bone mineral density

BMC

Bone mineral content

CD

Celiac disease

CTX

Carboxy-terminal telopeptide of type I collagen

DEXA

Dual-energy X-ray absorptiometry

NS

Nonsignificant

SD

Standard deviation

SEM

Standard error of the mean

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Daniel R. Diniz-Santos
    • 1
  • Flávia Brandão
    • 2
  • Luis Adan
    • 2
    • 3
  • Agnaluce Moreira
    • 4
  • Eliézer J. Vicente
    • 5
  • Luciana R. Silva
    • 1
    • 3
  1. 1.Division of Pediatric Gastroenterology and Hepatology, Hosannah de Oliveira Pediatric CenterFederal University of BahiaSalvadorBrazil
  2. 2.Pediatric UnitState of Bahia Center for Diabetes and Endocrinology (CEDEBA)SalvadorBrazil
  3. 3.Department of Pediatrics, School of MedicineFederal University of BahiaSalvadorBrazil
  4. 4.LPC Clinical Pathology LaboratorySalvadorBrazil
  5. 5.Bone Densitometry UnitVida ClinicsSalvadorBrazil

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