Endocrine

, 40:102 | Cite as

Influence of diabetes mellitus on vertebral fractures in men with acromegaly

  • Gherardo Mazziotti
  • Monica Gola
  • Antonio Bianchi
  • Teresa Porcelli
  • Antonella Giampietro
  • Vincenzo Cimino
  • Mauro Doga
  • Carmine Gazzaruso
  • Laura De Marinis
  • Andrea Giustina
Original Article

Abstract

Acromegaly is frequently complicated by fragility vertebral fractures and diabetes mellitus. Since type 2 diabetes mellitus is a cause of secondary osteoporosis in the general population, in this cross-sectional study we aimed at investigating the association between diabetes mellitus and vertebral fractures in males with acromegaly. Fifty-seven patients (median age 47 years, range: 24–85) with active (21 cases) and controlled (36 cases) acromegaly and 57 control subjects were evaluated for bone mineral density (BMD) by DXA and vertebral fractures by a quantitative morphometric analysis. Diabetes mellitus was found in 18 patients and 18 control subjects. The prevalence of vertebral fractures was higher in acromegalic patients as compared with the control subjects (50.9 vs. 10.5%; χ2: 21.8; P < 0.001). Acromegalic patients with fractures had serum IGF-I values significantly higher (P = 0.009), longer duration of active disease (P < 0.001) and higher prevalence of active acromegaly (P = 0.007) and diabetes mellitus (P = 0.04) as compared to patients who did not fracture. When acromegaly was active, the prevalence of vertebral fractures was high independently of the coexistent diabetes mellitus. On the contrary, when acromegaly was controlled the prevalence of vertebral fractures was significantly higher in patients with diabetes as compared to patients without diabetes (62.6 vs. 28.0%; P = 0.04). In both diabetic and non diabetic patients, vertebral fractures occurred independently of BMD. In conclusion, this study suggests that diabetes mellitus may be associated with an increased prevalence of vertebral fractures in males with acromegaly. However, this effect seems to be relatively attenuated in the presence of persistent GH hypersecretion.

Keywords

Acromegaly Vertebral fractures Osteoporosis Diabetes mellitus 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Gherardo Mazziotti
    • 1
    • 2
  • Monica Gola
    • 1
  • Antonio Bianchi
    • 3
  • Teresa Porcelli
    • 1
  • Antonella Giampietro
    • 3
  • Vincenzo Cimino
    • 3
  • Mauro Doga
    • 1
  • Carmine Gazzaruso
    • 4
    • 5
  • Laura De Marinis
    • 3
  • Andrea Giustina
    • 1
  1. 1.Department of Medical and Surgical Sciences University of Brescia, Endocrine ServiceMontichiari HospitalBresciaItaly
  2. 2.Department of Medicine, Endocrine Unit“Carlo Poma” HospitalMantuaItaly
  3. 3.Department of Endocrinology, Pituitary UnitCatholic University of RomeRomeItaly
  4. 4.Diabetes UnitClinical Institute “Beato Matteo” ICBMVigevanoItaly
  5. 5.Department of Internal MedicineIRCCS Policlinico San DonatoMilanoItaly

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