The increase in bone mineral density by bisphosphonate with active vitamin D analog is associated with the serum calcium level within the reference interval in postmenopausal osteoporosis

  • Mayuko Kinoshita
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Muneaki Ishijima
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Haruka Kaneko
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Lizu Liu
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Masashi Nagao
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Ryo Sadatsuki
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Shinnosuke Hada
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Hitoshi Arita
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Takako Aoki
    Sportology Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
  • Makoto Yamanaka
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Hidetoshi Nojiri
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Yuko Sakamoto
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Akifumi Tokita
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;
  • Kazuo Kaneko
    Department of Medicine for Orthopedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan;

Bibliographic Information

Published
2018-03-09
Resource Type
journal article
DOI
  • 10.1080/14397595.2018.1442671
  • 10.6084/m9.figshare.5966335
  • 10.6084/m9.figshare.5966335.v1
Publisher
Oxford University Press (OUP)

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Description

Objectives: To examine the factors associated with increase in lumbar spine bone mineral density (LS-BMD) by bisphosphonates (BPs) with active vitamin D analog (aVD). Methods: Two independent postmenopausal osteoporotic patients treated by BPs with aVD for 24 months (Study 1: n = 93, Study 2: n = 99) were retrospectively analyzed. Results: In Study 1, LS-BMD of the patients significantly increased for 24 m (5.4%, p r2: 0.088, p = .02). While average sCa of the patients was 9.2 mg/dL before treatment, it increased time-dependently to 9.6 mg/dL for 24 m by treatment. As each patient had their LS-BMD five times during the study, there were four instances of %LS-BMD in each patient, resulting in 372 instances of %LS-BMD in Study 1. The smallest Akaike’s information criterion value for the most appropriate cut-off levels of sCa for %LS-BMD by treatment every 6 m was 9.3 mg/dL. The %LS-BMD by treatment for 6 m during 24 m period in patients with sCa ≥9.3 mg/dL (1.5%) was significantly higher than that in patients with sCa <9.3 mg/dL (0.8%, p = .038). The results of Study 2 were similar to those of Study 1, confirming the phenomena observed. Conclusion: sCa was associated with an increased LS-BMD by BPs with aVD.

Journal

  • Modern Rheumatology

    Modern Rheumatology 29 (1), 157-164, 2018-03-09

    Oxford University Press (OUP)

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