Purpose:
        In addition to lipid-lowering properties, statins have been suggested to affect bone turnover by increasing the osteoblastic bone formation and blocking the osteoclastogenesis. However, there are many controversial reports regarding the beneficial effect of statins on osteoporosis. In this study, we investigated the therapeutic effects of the most important lipophilic statins administered orally for 60 days to the ovariectomized (OVX) female Sprague-Dawley rats and compared the effects on different harvested trabecular and compact bones.
      
          
        Methods:
        Thirty female rats were divided into five equal groups including the normal rats, untreated OVX rats (negative control), and the OVX rats treated with atorvastatin (20 mg/kg/day), simvastatin (25 mg/kg/day), and lovastatin (20 mg/kg/day). The osteoporotic animals were treated daily for 60 days and euthanized at the end of experiments. The effectiveness of these treatments was evaluated by biomechanical testing, histopathologic, histomorphometric, micro-CT scan, real-time PCR, and serum biochemical analysis. Moreover, the hepatotoxicity and rhabdomyolysis related with these treatments were assessed by biochemistry analysis and histopathological evaluation.
      
          
        Results:
        The results and statistical analysis showed that systemic delivery of simvastatin and lovastatin significantly increased serum calcium level, expression of osteogenic genes, bone mineral density (BMD), and biomechanical properties in comparison to the untreated OVX rats, especially in trabecular bones (P < 0.05). The results of different analysis also indicated that there was no statistical difference between the atorvastatin-treated animals and the negative control. Among all treatments, only atorvastatin showed an evident hepatotoxicity and myopathy.
      
          
        Conclusions:
        It was concluded that the lovastatin and simvastatin efficiently ameliorated the OVX-induced osteoporosis. Moreover, the simvastatin-treated animals showed more resemblance to the normal group in terms of BMD, expression of osteogenic genes, serum biochemical parameters, histomorphometric findings, and biomechanical performance with no significant side-effects.
      
       
          
          
                      
              
  Citing Articles
                              
  In Vitro Release Dynamics of Atorvastatin-Loaded Alginate Particles for Enhanced Periodontal Treatment.
  
    Hlawa I, Reske T, Chabanovska O, Scholz M, Vasudevan P, Oschatz S
    
    
    Polymers (Basel). 2025; 17(3).
  
  
    PMID: 39940629
    
          PMC: 11820141.
    
          DOI: 10.3390/polym17030427.
      
 
                                  
                                              
  Combination treatment with whole body vibration and simvastatin improves the early osseointegration in aged rats.
  
    Qiao Z, Gu M, Wang Y, Ma B, Pang S
    
    
    Bone Rep. 2024; 22:101790.
  
  
    PMID: 39540057
    
          PMC: 11558254.
    
          DOI: 10.1016/j.bonr.2024.101790.
      
 
                                  
                                              
  Effect of local and systemic administration of atorvastatin for improving bone healing on critical defects.
  
    Miranda-Filho F, Barbosa S, Panigali O, Silva M, Costa M, Flores F
    
    
    Braz Dent J. 2024; 35:e246114.
  
  
    PMID: 39476113
    
          PMC: 11506307.
    
          DOI: 10.1590/0103-6440202406114.
      
 
                                  
                                              
  Physicochemical and Biological Characterization of Gelatin/Alginate Scaffolds Reinforced with -TCP, FDBA, and SrHA: Insights into Stem Cell Behavior and Osteogenic Differentiation.
  
    Mohaghegh S, Nokhbatolfoghahaei H, Baniameri S, Farajpour H, Fakhr M, Shokrolahi F
    
    
    Int J Biomater. 2024; 2024:1365080.
  
  
    PMID: 39376511
    
          PMC: 11458296.
    
          DOI: 10.1155/2024/1365080.
      
 
                                  
                                              
  The effects of simvastatin on the bone microstructure and mechanics of ovariectomized mice: a micro-CT and micro-finite element analysis study.
  
    Liang Y, Yuan X, Dai X, Zhang G, Li C, Yang H
    
    
    BMC Musculoskelet Disord. 2024; 25(1):748.
  
  
    PMID: 39294613
    
          PMC: 11409800.
    
          DOI: 10.1186/s12891-024-07860-w.
      
 
                              
              
                              
                
                
                                      
  Statins-Their Role in Bone Tissue Metabolism and Local Applications with Different Carriers.
  
    Granat M, Eifler-Zydel J, Kolmas J
    
    
    Int J Mol Sci. 2024; 25(4).
  
  
    PMID: 38397055
    
          PMC: 10888549.
    
          DOI: 10.3390/ijms25042378.
      
 
                                          
                                                          
  IRF8 and its related molecules as potential diagnostic biomarkers or therapeutic candidates and immune cell infiltration characteristics in steroid-induced osteonecrosis of the femoral head.
  
    Liang X, Liu X, Li S, Wen M, Chen Y, Luo D
    
    
    J Orthop Surg Res. 2023; 18(1):27.
  
  
    PMID: 36627660
    
          PMC: 9832881.
    
          DOI: 10.1186/s13018-022-03381-1.
      
 
                                          
                                                          
  Early effects of ovariectomy on bone microstructure, bone turnover markers and mechanical properties in rats.
  
    Guo X, Yu X, Yao Q, Qin J
    
    
    BMC Musculoskelet Disord. 2022; 23(1):316.
  
  
    PMID: 35366843
    
          PMC: 8977003.
    
          DOI: 10.1186/s12891-022-05265-1.
      
 
                                          
                                                          
  Incidence of Radiolucent Lines after Cemented Total Knee Arthroplasty.
  
    Ng H, Tan G, Tan R, Kau C
    
    
    Arch Bone Jt Surg. 2022; 10(1):85-91.
  
  
    PMID: 35291250
    
          PMC: 8889420.
    
          DOI: 10.22038/ABJS.2021.54610.2723.
      
 
                                          
                                                          
  Outcomes of Tibial Plateau Fracture Surgical Fixation: a Comparative Study between Younger and Older Age Groups.
  
    Aghamiri S, Sarzaeem M, Shahrezaee M, Omidian M, Amouzadeh Omrani F
    
    
    Arch Bone Jt Surg. 2022; 9(6):647-652.
  
  
    PMID: 35106329
    
          PMC: 8765196.
    
          DOI: 10.22038/abjs.2021.52884.2629.
      
 
                                          
                                                          
  Hydrogel contained valproic acid accelerates bone-defect repair via activating Notch signaling pathway in ovariectomized rats.
  
    Tao Z, Li T, Xu H, Yang M
    
    
    J Mater Sci Mater Med. 2021; 33(1):4.
  
  
    PMID: 34940936
    
          PMC: 8702411.
    
          DOI: 10.1007/s10856-021-06627-2.
      
 
                                          
                                                          
  Low dose hydrophilic statins are the preferred agents for females at risk of osteoporosis.
  
    Antonenko A, Leahy A, Babenko M, Lyons D
    
    
    Bone Rep. 2021; 16:101152.
  
  
    PMID: 34934779
    
          PMC: 8654793.
    
          DOI: 10.1016/j.bonr.2021.101152.
      
 
                                          
                                                          
  Simvastatin reverses the harmful effects of high fat diet on titanium rod osseointegration in ovariectomized rats.
  
    Sun T, Xing H, Chen Z, Tao Z, Li J
    
    
    J Bone Miner Metab. 2021; 39(6):944-951.
  
  
    PMID: 34189660
    
    
          DOI: 10.1007/s00774-021-01243-0.
      
 
                                          
                                                          
  Biomechanical Evaluation of Temperature Rising and Applied Force in Controlled Cortical Bone Drilling: an Animal in Vitro Study.
  
    Ein-Afshar M, Shahrezaee M, Shahrezaee M, Sharifzadeh S
    
    
    Arch Bone Jt Surg. 2020; 8(5):605-612.
  
  
    PMID: 33088862
    
          PMC: 7547161.
    
          DOI: 10.22038/abjs.2020.45014.2233.
      
 
                                          
                                                          
  Influence of Simvastatin-Strontium-Hydroxyapatite Coated Implant Formed by Micro-Arc Oxidation and Immersion Method on Osteointegration in Osteoporotic Rabbits.
  
    Zhao B, Li X, Xu H, Jiang Y, Wang D, Liu R
    
    
    Int J Nanomedicine. 2020; 15:1797-1807.
  
  
    PMID: 32214812
    
          PMC: 7083628.
    
          DOI: 10.2147/IJN.S244815.
      
 
                                          
                                                          
  Statins as potential agents for the prevention and treatment of osteoporosis.
  
    Kaleagasioglu F, Olcay E, Onur R
    
    
    Endocrine. 2018; 62(1):269.
  
  
    PMID: 29911249
    
    
          DOI: 10.1007/s12020-018-1650-0.