title: Biochemical bone turnover markers: significance in patients with osteoporosis.
abstract: Osteoporosis is a systemic disease, which is characterized by reduced bone mass and microarchitectural deterioration of the bone tissue, resulting in an increased risk of fracture. Since osteoporosis is today a disease with high incidence rate, the aim of this study was to determine a correlation between bone mass density (BMD) and concentration of biochemical bone turnover markers--deoxypyridinoline (DPD) as a marker of bone resorption, and osteocalcin (OC) as a marker of bone formation. The study included 70 women between 33 and 76 years of age. In all women BMD was measured by Dual X-ray Absorptiometry (DXA) as a T-score. T-score was defined as the number of standard deviations of the bone mass density from the maximum bone mass density in young adults. According to T-score, patients were divided into three groups: patients with osteoporosis, patients with osteopenia and control group consisting of patients with normal T-score. DPD in urine and OC in serum were measured by a routine procedure.
  
  
  RESULTS
  a negative correlation between BMD and concentration of bone turnover marker was discovered. One-way analysis of variance and Pearson correlation were used for statistical analysis, with a P value < 0.05 being considered significant. Although a negative correlation was discovered, we concluded that both procedures have a significant role in diagnosis and follow-up of patients with osteoporosis.
authors.affiliation: Clinical Institute of Nuclear Medicine and Radiation Protection, University Hospital Centre Osijek, Osijek, Croatia. mihaljevici@gmx.net
authors.forename: Ivan
authors.initials: I
authors.lastname: Mihaljević
authors.forename: Dunja
authors.initials: D
authors.lastname: Mudri
authors.forename: Robert
authors.initials: R
authors.lastname: Smolić
authors.forename: Marina
authors.initials: M
authors.lastname: Smolić
authors.forename: Sandra
authors.initials: S
authors.lastname: Tucak-Zorić
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D000596:Amino Acids / Q000652:urine*; D000704:Analysis of Variance; D015415:Biomarkers / Q000378:metabolism; D015519:Bone Density; D001862:Bone Resorption / Q000378:metabolism; D016022:Case-Control Studies; D017523:Croatia; D005260:Female; D006801:Humans; D008875:Middle Aged; D015675:Osteocalcin / Q000097:blood*; D010012:Osteogenesis; D010024:Osteoporosis / Q000175:diagnosis* / Q000378:metabolism; D011237:Predictive Value of Tests
chemical_list: D000596:Amino Acids; D015415:Biomarkers; D015675:Osteocalcin; C036020:deoxypyridinoline