title: Effects of high dose methylprednisolone pulse therapy on bone mass and biochemical markers of bone metabolism in patients with active rheumatoid arthritis: a 12-month randomized prospective controlled study.
abstract: OBJECTIVE
  To study the effects of one year of high dose 6-methylprednisolone pulse therapy (MPPT) on bone mass, seric bone alkaline phosphatase (sBAP), and urinary deoxypyridinoline (uDpyr) in patients with active rheumatoid arthritis (RA), and to compare results with those of patients with active RA treated with oral methylprednisolone (OMP).
  
  
  METHODS
  Thirty-one women with active RA were given 1000 mg of MP IV for 3 alternate days, with a mean interval of administration of 76 days (+/- 8.3 SD) for one year (MPPT group). Bone mineral density (BMD) (total body, lumbar spine, and femur neck), plasma levels of sBAP, and urinary concentrations of uDpyr were assessed at the beginning of the treatment and every 3 months until the end of the study. Moreover, erythrocyte sedimentation rate (ESR), Thompson joint score, and early morning stiffness were assessed at study entry and every month. The control group, 31 women with active RA treated with oral MP, was followed in the same way (OMP group).
  
  
  RESULTS
  In the MPPT group there was no significant reduction of BMD at any site compared to significant reductions in lumbar BMD at 6 and 12 months and total body BMD and femur neck BMD at 12 months in the OMP group. Also in the OMP group, a significant reduction in the mean sBAP was observed. The mean uDpyr levels were not significantly reduced in either group.
  
  
  CONCLUSIONS
  Our results show that MPPT, compared to continuous therapy with oral corticosteroids, preserves bone mass without modifying the biochemical markers of bone metabolism.
authors.affiliation: Department of Clinical Medicine and Immunological Sciences, Division of Rheumatology, University of Siena, Siena, Italy. fredianibruno@tiscalinet.it
authors.forename: Bruno
authors.initials: B
authors.lastname: Frediani
authors.forename: Paolo
authors.initials: P
authors.lastname: Falsetti
authors.forename: Stefania
authors.initials: S
authors.lastname: Bisogno
authors.forename: Fabio
authors.initials: F
authors.lastname: Baldi
authors.forename: Caterina
authors.initials: C
authors.lastname: Acciai
authors.forename: Georgios
authors.initials: G
authors.lastname: Filippou
authors.forename: Maria Romana
authors.initials: MR
authors.lastname: Bacarelli
authors.forename: Paolo
authors.initials: P
authors.lastname: Filipponi
authors.forename: Mauro
authors.initials: M
authors.lastname: Galeazzi
authors.forename: Roberto
authors.initials: R
authors.lastname: Marcolongo
mesh_terms: D015502:Absorptiometry, Photon; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy* / Q000473:pathology; D015415:Biomarkers; D015519:Bone Density / Q000187:drug effects*; D005260:Female; D005272:Femur Neck / Q000378:metabolism / Q000473:pathology; D006801:Humans; D008159:Lumbar Vertebrae / Q000378:metabolism / Q000473:pathology; D008775:Methylprednisolone / Q000008:administration & dosage*; D008875:Middle Aged; D011446:Prospective Studies; D020551:Pulse Therapy, Drug; D016896:Treatment Outcome
chemical_list: D000893:Anti-Inflammatory Agents; D015415:Biomarkers; D008775:Methylprednisolone