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Zhang C, Zhu J, Jia J, Guan Z, Sun T, Zhang W, Yuan W, Wang H, Song C. Long-term pretreatment with alendronate inhibits calvarial defect healing in an osteoporotic rat model. J Bone Miner Metab 2021; 39:925-933. [PMID: 34091742 DOI: 10.1007/s00774-021-01235-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION This study aimed to observe the effects of long-term alendronate pretreatment on the healing of osteoporotic calvarial defects, and further investigate the effect of alendronate combined with once-weekly parathyroid hormone following 12 weeks of alendronate treatment in ovariectomized rats. MATERIALS AND METHODS Thirty 3-month-old female rats were ovariectomized, and 24 rats received alendronate for 12 weeks. Then, a critical defect was created in the calvaria of all animals. Immediately after osteotomy, the animals received one of five treatments for 8 weeks: (1) continuation of vehicle (group E), (2) alendronate followed by vehicle (group A), (3) continuation of alendronate (group B), (4) alendronate followed by once-weekly parathyroid hormone alone (group C), or (5) continuation of alendronate combined with once-weekly parathyroid hormone (group D). Calvarial defect healing was assessed using dual-energy X-ray absorptiometry, micro-computed tomography, histology, and sequential fluorescence labeling. RESULTS Group E showed a significantly higher volume of newly formed bone than groups A, B, C, and D. Evidence of new dense bone formation in group E was observed histologically. In addition, the immunohistochemical expression of runt-related transcription factor 2 was increased in group E but inhibited in groups A, B, C, and D. Sequential immunofluorescence also showed inhibited mineral apposition in groups A, B, C, and D compared with group E. CONCLUSION The present study shows that long-term pretreatment with alendronate inhibited calvarial defect healing in osteoporotic rats, and this effect could not be reversed by stopping alendronate, switching to parathyroid hormone, or combining with once-weekly parathyroid hormone.
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Affiliation(s)
- Chenggui Zhang
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Junxiong Zhu
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Jialin Jia
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Zhiyuan Guan
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Tiantong Sun
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Wang Zhang
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Wanqiong Yuan
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Hong Wang
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Chunli Song
- Department of Orthopedics, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China.
- Beijing Key Laboratory of Spinal Diseases, Beijing, China.
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de Lima do Nascimento TC, Gerber JT, Verbicaro T, Arce RM, Elsalanty ME, Fontana JD, Muller Storrer CL, Scariot R. Biochemical and X-ray micro-computed tomographic analyses of critical size bone defects grafted with autogenous bone and mercerized bacterial cellulose membranes salified with alendronate. J Oral Biosci 2021; 63:408-415. [PMID: 34425239 DOI: 10.1016/j.job.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVES This study aimed to evaluate the repair of critical-sized bone defects grafted with autogenous bone and mercerized bacterial cellulose membranes (BCm) salified with alendronate (ALN). METHODS Forty-eight male Wistar rats underwent surgery to create a 5 mm-diameter bone defect in the calvarium. The removed bone was particularized, regrafted into the defect, and covered by a BCm according to the group: control group (CG), simply mercerized BCm; group 1 (G1), negatively charged BCm (BCm-CM-) salified with ALN; and group 2 (G2), positively charged BCm (BCm-DEAE+) salified with ALN. Serum samples were collected preoperatively and before euthanasia to analyze osteoprotegerin (OPG), parathyroid hormone (PTH), sclerostin (SOST), and fibroblast growth factor 23 (FGF23) levels. The animals were euthanized after 15 or 60 d. Calvaria were analyzed using quantitative microtomography (μCT). RESULTS There was an increased level of PTH in the CG compared to the G2 group, at day 60 (p = 0.019). When analyzing the same group over time, G1 presented an increased FGF23 level on days 15 and 60 (p < 0.05). CG presented an increase in PTH (p = 0.037) at day 60. The μCT analysis detected increased trabecular separation on day 15 in G2 compared to G1 (p = 0.040). CONCLUSIONS Salification of ionized BCm with ALN had no direct effect on bone repair; however, BCm-CM- increased the levels of FGF23 over time. BCm-DEAE+ decreased PTH levels compared to mercerized BCm. BCm-CM-salified with ALN-induced superior bone quality, with respect to trabecular separation, compared to BCm-DEAE+.
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Affiliation(s)
- Tuanny C de Lima do Nascimento
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Jennifer Tsi Gerber
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Thalyta Verbicaro
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Roger M Arce
- Department of Periodontics and Oral Hygiene, School of Dentistry, The University of Texas Health Science Center at Houston, 7500 Cambridge St, Houston, TX, USA, Zip code: 77054
| | - Mohammed E Elsalanty
- Department of Medical Anatomical Sciences, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 615 E 3rd St Pomona, CA, USA, Zip code: 91766
| | - José Domingos Fontana
- Master Graduation on Urban and Industrial Environments, Polytechnic Center, Federal University of Paraná, 100 Cel. Francisco H. Dos Santos Avenue, Curitiba, PR, Brazil, Zip code: 81530-000
| | - Carmen Lucia Muller Storrer
- Department of Periodontics, IOA Boutique Curitiba, 6823 Sete de Setembro Avenue, Seminario, Curitiba, PR, Brazil, Zip code: 80240-001
| | - Rafaela Scariot
- Department of Stomatology, School of Dentistry, Federal University of Parana, 632 Prefeito Lothario Meissner Avenue, Curitiba, PR, Brazil, Zip code: 80210-170.
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Bonetto LM, Corso PFCDL, Kuchar GG, Gerber JT, Cunha LF, Elsalanty M, Zielak JC, Gonzaga CC, Scariot R. Effect of Age and Sodium Alendronate on Femoral Fracture Repair: Biochemical and Biomechanical Study in Rats. Front Cell Dev Biol 2021; 9:558285. [PMID: 34026748 PMCID: PMC8131822 DOI: 10.3389/fcell.2021.558285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 04/12/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bisphosphonates are drugs widely used to reduce bone resorption, increase bone mineral density and control age-related bone loss. Although there are studies reporting differences in bone structure between young and old adults, it is still difficult to predict changes related to bone aging. The aim of this study was to evaluate the effect of age and sodium alendronate on bone repair of femoral fractures in rats. METHODS Wistar rats (n = 40) were allocated into groups: O (control old-rats), Y (control young-rats), OA (alendronate old-rats) and YA (alendronate young-rats). All animals underwent linear fracture surgery followed by fixation. Groups OA and YA received 1 mg/kg alendronate three times a week until euthanasia. Biochemical analysis of calcium and alkaline phosphatase was done. After euthanasia, femurs were evaluated in relation to cross-section and flexural strength, with three-point bending test. Data were submitted to statistical analysis with significance level of 0.05. RESULTS There was no difference in calcium and alkaline phosphatase levels (p > 0.05). Young animals presented lower cross-section than older animals (p < 0.05). Only fractured side, young animals presented major flexural strength than older animals (p < 0.05). There was no difference between the animals that used or not alendronate in relation to cross-section and flexural strength (p > 0.05). When compared fractured and non-fractured femurs, major cross-section on fractured side was observed (p < 0.05). Flexural strength presented higher values in femurs on non-fractured side (p < 0.05). There was correlation of weight and cross-section (R = +0.91) and weight with flexural strength of fractured and non-fractured side, respectively (R = -0.97 and -0.71). CONCLUSION In short, there was no difference of calcium and alkaline phosphatase during the bone repair process. Age has influence in cross-section and flexural strength. Alendronate showed no association with these factors.
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Affiliation(s)
| | | | | | | | | | - Mohammed Elsalanty
- Department of Medical Anatomical Science, Western University of Health Sciences, Pomona, CA, Unioted States
| | | | | | - Rafaela Scariot
- Department of Dentistry, Federal University of Parana, Curitiba, Brazil
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Zhang R, Yang M, Li Y, Liu H, Ren M, Tao ZS. Effect of alendronate on the femoral metaphyseal defect under carbamazepine in ovariectomized rats. J Orthop Surg Res 2021; 16:14. [PMID: 33407695 PMCID: PMC7788868 DOI: 10.1186/s13018-020-02151-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The use of antiepileptic drugs and estrogen deficiency put forward higher requirements for bone defect regeneration. The present study investigated the effects of alendronate (ALN) on femoral bone defect in ovariectomized (OVX) rats under the influence of carbamazepine (CBZ). METHODS One hundred female SD rats at 3 months of age were either sham-operated or OVX and divided into four groups: sham control (CON); OVX control (OVX); ovariectomized rats treated with CBZ via gavage (75 mg/kg/day; CBZ); ovariectomized rats treated with CBZ plus ALN (2 mg/kg/day; CBZ-ALN). A critical-sized femoral metaphyseal bone defect was established in all female SD rats. Animals from the CBZ and CBZ-ALN groups received drugs by gavage the day after bone defect surgery was performed. After the rats were sacrificed, the defected area located in the distal femur was harvested for evaluation by microcomputed tomography (micro-CT), hematoxylin and eosin (HE) staining, and Masson's trichrome staining. The samples were also analyzed by biomechanics and immunohistochemical evaluation (IHC). Besides, biochemical analysis evaluates all serum samples. RESULTS The present study showed that ovariectomy changed the microstructural parameters of bone. The use of CBZ further decreased femur bone mass while treatment with ALN prevented bone loss. Compared to OVX and CBZ groups, CBZ-ALN group promoted bone neoformation and enhanced the ultimate load of the femur bone. However, the group of CBZ-ALN did not return to normal levels compared with the CON group. Besides, we noticed that CBZ-ALN group reduced tartrate-resistant acid phosphatase-5b (Tracp-5b) expression and had no significant effect on the expression of osteocalcin (OCN) and type I collagen (Col-I) in IHC compared with CBZ group. Biochemical analysis results presented that systemic delivery of CBZ showed pernicious effects on bone formation and resorption in ovariectomized rats, with the worse effects on C-terminal crosslinked telopeptide of type I collagen (CTX-1). Besides, a significant decrease in CTX-1 levels was observed in CBZ-ALN group as compared to the group of CBZ. CONCLUSION These results demonstrated that ALN can effectively reverse the effects of CBZ on the microarchitectural properties of bone, and thus can have a positive effect on local bone neoformation in rats with osteoporosis. CLINICAL RELEVANCE The dose of 2 mg/kg ALN improves the negative effect of prescription of CBZ at 75 mg/kg and promotes bone neoformation of femoral bony deficits.
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Affiliation(s)
- Ruotian Zhang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China.
| | - Yang Li
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China
| | - Hedong Liu
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China
| | - Maoxian Ren
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital, No. 2, Zhe shan Xi Road, Anhui, 241001, Wuhu, People's Republic of China
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