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Calcified Tissue International

, Volume 102, Issue 6, pp 705–719 | Cite as

Effect of Strontium Ranelate on the Muscle and Vertebrae of Ovariectomized Rats

  • D. Saul
  • B. Harlas
  • A. Ahrabi
  • R. L. Kosinsky
  • D. B. Hoffmann
  • M. Wassmann
  • R. Wigger
  • K. O. Böker
  • S. Sehmisch
  • M. Komrakova
Original Research
  • 188 Downloads

Abstract

Osteoporosis is often accompanied by sarcopenia. The effect of strontium ranelate (SR) on muscle tissue has not been investigated sufficiently. In this study, the effect of different SR treatments on muscle was studied. Additionally, the lumbar vertebrae were analyzed. Three-month-old female rats were divided into five groups (n = 12): Group 1: untreated (NON-OVX); Group 2: ovariectomized and left untreated (OVX); Group 3: SR after OVX until the study ended (13 weeks, SR prophylaxis and therapy = pr+th); Group 4: OVX and SR for 8 weeks (SR prophylaxis = pr); Group 5: SR for 5 weeks from the 8 week after OVX (SR therapy = SR th). SR was applied in food (630 mg/kg body weight). The size of muscle fibers, capillary density, metabolic enzymes, and mRNA expression were assessed in soleus, gastrocnemius, and longissimus muscles. The vertebral bodies underwent micro-CT, biomechanical, and ashing analyses. In general, SR did not alter the muscle histological parameters. The changes in fiber size and capillary ratio were related to the body weight. Myostatin mRNA was decreased in Sr pr+th; protein expression was not changed. SR th led to increase in mRNA expression of vascular endothelial growth factor (Vegf-B). In lumbar spine, SR pr+th enhanced biomechanical properties, bone mineral density, trabecular area, density, and thickness and cortical density. The reduced calcium/phosphate ratio in the SR pr+th group indicates the replacement of calcium by strontium ions. SR has no adverse effects on muscle tissue and it shows a favorable time-dependent effect on vertebrae. A functional analysis of muscles could verify these findings.

Keywords

Strontium ranelate Osteoporosis Muscle Ovariectomized rat 

Notes

Acknowledgements

We wish to express our gratitude to Elsbeth Bonhoff Stiftung for providing the financial support for the present study (Grant N70). Moreover, we are grateful to R. Wigger, R. Castro-Machguth, and A. Witt for the technical support they provided.

Compliance with Ethical Standards

Conflict of interest

Authors D. Saul, B. Harlas, A. Ahrabi, R. L. Kosinsky, D. B. Hoffmann, M. Wassmann, R. Wigger, K. O. Böker, S. Sehmisch, and M. Komrakova declare that they have no conflicts of interest.

Human and Animal Rights and Informed Consent

All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted.

Supplementary material

223_2017_374_MOESM1_ESM.eps (3.4 mb)
ATPase analysis of M. gastrocnemius, M. longissimus and M. soleus. area: cross sectional area of muscle fibers; dia: mean diameter of muscle fibers; oxi: oxidative and intermittent muscle fibers (I and IIa); gly: glycolytic muscle fibers (IIb). Data corrected by body weight (g). A,B, G-J,: Dunn´s test; C-F: Tukey-test. *p < 0.05, **p < 0.01, ***p < 0.001. (EPS 3448 KB)
223_2017_374_MOESM2_ESM.eps (3.2 mb)
Activity of lactate dehydrogenase (LDH), citrate synthase (CS) and Complex I was measured in M. gastrocnemius, M. longissimus and M. soleus. There were no significant differences between the groups (p > 0.05). A, H: Dunn´s test; B-G, I: Tukey-test (EPS 3226 KB)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • D. Saul
    • 1
  • B. Harlas
    • 1
  • A. Ahrabi
    • 1
  • R. L. Kosinsky
    • 2
  • D. B. Hoffmann
    • 1
  • M. Wassmann
    • 3
  • R. Wigger
    • 4
  • K. O. Böker
    • 1
  • S. Sehmisch
    • 1
  • M. Komrakova
    • 1
  1. 1.Department of Trauma Surgery, Orthopaedics and Plastic SurgeryUniversity Medical Center GoettingenGöettingenGermany
  2. 2.Department of General, Visceral and Pediatric SurgeryUniversity Medical Center GoettingenGöettingenGermany
  3. 3.Medical Institute of General Hygiene and Environmental HealthUniversity of GoettingenGöettingenGermany
  4. 4.Department of Animal ScienceUniversity of GoettingenGöettingenGermany

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