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Bolat N, Erzurumlu Y, Aşcı H, Özmen Ö, Üreyen Kaya B. Selenium ameliorates inflammation by decreasing autophagic flux and mitogen-activated protein kinase signalling on experimentally induced rat periapical lesions. Int Endod J 2023; 56:227-244. [PMID: 36314140 DOI: 10.1111/iej.13861] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/05/2022]
Abstract
AIM To reveal the molecular mechanisms that targets mitogen-activated protein kinase (MAPK) signalling and the autophagic flux and to investigate the possible effects of the systemic administration of selenium (Se) on experimentally induced rat periapical lesions. METHODOLOGY Thirty adult Sprague-Dawley rats were divided equally into negative control, positive control and Se groups. In the positive control and Se groups, the pulp chambers of their mandibular first molars were exposed to the oral environment to induce periapical lesions The Se group received daily intraperitoneal injections of Se at a dose of 0.1 mg kg-1 . After 28 days, the amount of bone destruction; severity of inflammation; penetration of microorganisms along the root canal; collagen degradation in periodontal ligament; interleukin (IL)-6, hypoxia-inducible factor-1 (HIF-1), cyclooxygenase-2 (COX-2) and caspase-3 expression; autophagic flux; and p38 MAPK signalling were evaluated using radiographic, histopathological, Gram staining, picrosirius red stain, immunohistochemical, quantitative real-time polymerase chain (qRT-PCR) and Western blot methods, respectively. These data were analysed through the Kruskal-Wallis and Dunnett's tests (p < .05). RESULTS The area of radiographic periapical bone loss, histopathological scores, the area of periapical bone loss and the scores for the bacteria localisation, the intensity of immunohistochemical staining for IL-6, HIF-1, COX-2 and caspase-3 in the Se group was significantly less than those of the positive control group (p < .01). The mRNA expression levels of Beclin-1, Atg3, Atg5, Atg7 and Atg16L1 were lower in the Se group than in the positive control group (p < .01). The protein expressions of Beclin-1, Atg5 and LC3-II, the phosphorylation ratio of the p38 MAPK and the ratios of LC3II/LC3I were significantly higher (p < .05) in the positive control and Se groups. On the contrary, the expression of the p62/SQSTM1 protein was significantly lower (p < .05) in the positive control and Se groups than in the negative control group. CONCLUSION The induction of periapical lesions in rats increased autophagic flux and activated p38 MAPK signal transduction processes. Se suppressed the inflammatory process, reduced bone destruction and both the autophagic flux and p38 MAPK activation.
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Affiliation(s)
- Nergiz Bolat
- Department of Endodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey
| | - Yalçin Erzurumlu
- Department of Biochemistry, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey
| | - Halil Aşcı
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Özlem Özmen
- Department of Pathology, Faculty of Veterinary, Mehmet Akif Ersoy University, Burdur, Turkey
| | - Bulem Üreyen Kaya
- Department of Endodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey
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The potential anti-osteoporotic effect of exercise-induced increased preptin level in ovariectomized rats. Anat Sci Int 2023; 98:22-35. [PMID: 35507276 DOI: 10.1007/s12565-022-00666-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/03/2022] [Indexed: 01/20/2023]
Abstract
Osteoporosis increases bone fragility and fractures. Preptin hormone is regulated by moderate exercise training and increases bone formation. Therefore, this study was conducted to see how estradiol administration and moderate exercise training affected osteoporotic changes in ovariectomized (OVX) rats. To achieve this aim, 36 healthy adult female Wistar albino rats were randomized into Sham, OVX, ovariectomized estradiol-treated (OVX + E) (OVX + E rats were treated using subcutaneous estradiol benzoate 2.5 μg/kg body weight/day), ovariectomized practicing moderate exercise training, ovariectomized estradiol-treated and practiced a moderate exercise training, and ovariectomized alendronate-treated (OVX + Alen) (OVX + Alen rats were treated orally with alendronate 3 mg/kg body weight/week) groups. Alendronate was used as a standard anti-osteoporotic drug. Moderate exercise training, including therapy with estradiol and alendronate for OVX rats began on the fourth week and lasted for six weeks. Results showed that OVX rats had estrogen and preptin deficiency in serum. These deficiencies were associated with a significant increase in bone resorption biomarkers (urinary deoxypyridinoline and hydroxyproline), and bone formation biomarkers (serum osteocalcin and bone-specific alkaline phosphatase). Also, serum pro-inflammatory cytokines (tumor necrosis factor alpha and interleukin-6) were increased, while bone osteopontin (OPN) expression was decreased. Subsequently, the osteoporotic alterations were verified based on histopathological changes. From the results, estradiol therapy and moderate exercise training significantly improved these findings to the same extent as that of the standard alendronate treatment. Therefore, through their anti-inflammatory properties, increasing bone OPN expression, and regulating serum preptin; estradiol therapy and moderate exercise training can reduce osteoporotic alterations in OVX rats. Thus, combined estradiol therapy and moderate exercise training could be a promising potential therapeutic protocol to reduce postmenopausal osteoporosis. Also, targeting serum preptin and bone osteopontin regulation could have a critical role in the treatment of postmenopausal osteoporosis.
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SANCAR B, TALAY GA. Treatment of Apical Periodontitis Induced BRONJ with Endodontic Treatment. CUMHURIYET DENTAL JOURNAL 2022. [DOI: 10.7126/cumudj.972890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Bisphosphonate-related osteonecrosis of the jaw (BRONJ), which is one of the serious side effects of bisphosphonates, has an increasing clinical importance due to the widespread use of bisphosphonates in the treatment of many diseases such as osteoporosis, osteopenia, Paget's disease, osteogenesis imperfecta, and multiple myeloma. BRONJ can spontaneously develop in the jawbones. In addition, many factors such as tooth extraction, periodontal diseases, and local trauma can trigger BRONJ. In our case, it was detected that the lesion appearing like BRONJ in the left lower jaw of the 67-year-old female patient with a history of oral bisphosphonate use developed due to apical periodontitis resulting from the tooth numbered 34. Root canal treatment was administered to the relevant tooth of the patient, the fistula tract was closed after this treatment, and as a result of the CBCT examination, it was observed that the enlargement in the necrotic bone area stopped. In addition, the patient's complaints about the relevant tooth disappeared. As a result, endodontic treatment is an effective treatment approach in the treatment of BRONJ developing due to apical periodontitis. In order to avoid the risk of BRONJ, a detailed oral examination should be performed before starting the bisphosphonate treatment, and necessary endodontic, restorative and periodontal treatments should be followed.
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Affiliation(s)
- Bahadır SANCAR
- İnönü Üniversitesi Diş Hekimliği Fakültesi Ağız Diş ve Çene Cerrahisi Anabilim Dalı
| | - Gönen Aras TALAY
- İnönü Üniversitesi Diş Hekimliği Fakültesi Ağız Diş ve Çene Cerrahisi Anabilim Dalı
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Alghofaily M, Fouad AF. Association of Chronic Systemic Medications with the Incidence, Prevalence, or Healing of Endodontic Disease: A Systematic Review. J Endod 2022; 48:1458-1467. [DOI: 10.1016/j.joen.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
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do Nascimento IV, Rodrigues MIQ, Isaias PHC, Barros‐Silva PG, Sousa FB, Nunes Alves APN, Mota MRL. Chronic systemic corticosteroid therapy influences the development of pulp necrosis and experimental apical periodontitis, exacerbating the inflammatory process and bone resorption in rats. Int Endod J 2022; 55:646-659. [DOI: 10.1111/iej.13724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Isabelly Vidal do Nascimento
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Maria Imaculada Queiroz Rodrigues
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Pedro Henrique Chaves Isaias
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Paulo Goberlânio Barros‐Silva
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Fabricio Bitu Sousa
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Ana Paula Negreiros Nunes Alves
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
| | - Mário Rogério Lima Mota
- Division of Oral Pathology Department of Dental Clinic Faculty of Pharmacy, Dentistry and Nursing Federal University of Ceará (UFC) Fortaleza, Ceará Brazil
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Ikeda M, Karakawa A, Takizawa H, Azetsu Y, Sakai N, Chatani M, Suzuki N, Takami M. Effects of Anti-RANKL Antibody and Zoledronic Acid on Periapical Lesion Development in Mice. J Endod 2022; 48:632-640. [PMID: 35181456 DOI: 10.1016/j.joen.2022.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/04/2022] [Accepted: 02/06/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Anti-resorptive drugs are widely used to treat osteoporosis and other systemic bone diseases, though their efficacy for local bone resorption following localized inflammation has not been fully elucidated. We examined the effects of an anti-receptor activator of nuclear factor-κB ligand (RANKL) antibody and the bisphosphonate zoledronic acid (ZOL) on periapical lesion (PL) development in mice. METHODS Dental pulps of lower first molars in mice were removed, with the exposed dental pulp chambers left open to the oral environment to induce apical periodontitis. An anti-RANKL antibody or ZOL was intraperitoneally injected once per week until postoperative day 21, then micro-computed tomography and histological analyses were performed. RESULTS PL enlargement was inhibited by both the anti-RANKL antibody and ZOL in a dose-dependent manner and reduction of inflammatory cell infiltration in apical tissues inhibited periapical bone resorption. The anti-RANKL antibody decreased the number of osteoclasts in periapical tissues, while ZOL suppressed periapical bone resorption with osteoclast numbers maintained. While administration of each of the anti-resorptive drugs increased femoral bone mass, femoral bone mineral density in the PL group was lower as compared to the sham-operated group. CONCLUSIONS These results suggest that an anti-resorptive drug administered systemically is distributed to areas of local inflammation in the jaw and can prevent PL development.
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Affiliation(s)
- Megumi Ikeda
- Division of Endodontics, Department of Conservative Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan; Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan
| | - Akiko Karakawa
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan.
| | - Hideomi Takizawa
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan; Department of Orthodontics, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan
| | - Yuki Azetsu
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan
| | - Nobuhiro Sakai
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan
| | - Masahiro Chatani
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan
| | - Noriyuki Suzuki
- Division of Endodontics, Department of Conservative Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan
| | - Masamichi Takami
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, Tokyo, 142-8555, Japan.
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Isaias PHC, Silva PGDB, do Nascimento IV, Verde MEQL, Moreira MDS, Alves APNN, Sousa FB, Pereira KMA, Mota MRL. Effect of continuous and intermittent sodium alendronate oral dosing on post-extraction alveoli healing in rats. Arch Oral Biol 2021; 132:105291. [PMID: 34700193 DOI: 10.1016/j.archoralbio.2021.105291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 09/06/2021] [Accepted: 10/13/2021] [Indexed: 01/24/2023]
Abstract
OBJECTIVE This study aimed to compare alveolar healing after tooth extraction in two experimental rat models using continuous or discontinuous dosing of sodium alendronate (ALN). DESIGN Forty-eight male Wistar rats were divided into eight experimental groups (n = 6/group) and administered ALN (2.5, 5.0, or 7.5 mg/kg) by gavage, weekly, either intermittently or following a continuous regimen (2.5, 5.0, or 7.5 mg/kg) before tooth extraction. The positive control rats were administered zoledronic acid (ZA; 0.2 mg/kg, intravenous), whereas negative control rats received sterile saline (0.9% NaCl, gavage). RESULTS Only the ZA-treated animals showed a larger radiolucent extraction site area compared to the saline group (p = 0.007). Small areas of bone tissue filling the alveoli were visualized in the 7.5 mg/kg continuous ALN group and compared with the saline group (p < 0.001). Increased amounts of empty osteocyte lacunae (p < 0.001) and osteoclasts with signs of apoptosis (p = 0.004) were observed in the continuous ALN groups (2.5, 5.0, and 7.5 mg/kg) compared with the saline group. Increased immunolabeling for TNF-α was observed in the 7.5 mg/kg discontinuous ALN group and all continuous ALN groups compared with the saline group (p < 0.001). The number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts was higher in the two continuous ALN groups (5.0 and 7.5 mg/kg) than in the saline group (p < 0.001). CONCLUSIONS Continuous administration of ALN impaired post-extraction alveolar bone healing in rats; however, discontinuation of ALN administration before tooth extraction allowed for adequate post-dental extraction alveolar healing.
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Affiliation(s)
- Pedro Henrique Chaves Isaias
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil.
| | - Paulo Goberlânio de Barros Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil; Ceará Oncology School, Ceará Cancer Institute, Hospital Haroldo Juaçaba, Fortaleza, Ceará, Brazil.
| | - Isabelly Vidal do Nascimento
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil.
| | - Maria Elisa Quezado Lima Verde
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil.
| | - Manuela da Silva Moreira
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil.
| | - Ana Paula Negreiros Nunes Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil.
| | - Fabrício Bitu Sousa
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil.
| | - Karuza Maria Alves Pereira
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Morphology, School Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
| | - Mário Rogério Lima Mota
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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Inoue M, Matsumoto C, Nakajima K, Kuroshima S, Sawase T. Alendronate/dexamethasone combination therapy worsens soft and hard tissue wound healing around implants in rat maxillae. Bone 2021; 148:115942. [PMID: 33836307 DOI: 10.1016/j.bone.2021.115942] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/26/2021] [Accepted: 03/30/2021] [Indexed: 12/16/2022]
Abstract
Dental implant treatment in patients prescribed medications is associated with bisphosphonate-related osteonecrosis of the jaw (BRONJ) around the implants. However, there is no scientific information on how bisphosphonate and/or steroid therapies affect wound healing around implants after implant placement. The aim of this study was to histopathologically and immunopathologically investigate the effects of bisphosphonate and/or steroid therapy on the early stages of soft and hard tissue wound healing around implants in rat maxillae. Eight-week-old female Wistar rats were used. Alendronate (ALN) monotherapy, dexamethasone (DEX) monotherapy, and ALN/DEX combination therapy were started 4 weeks after tooth extraction of right maxillary first molars. Saline was used as a control (n = 14/group). Implant placement was carried out after grossly and manually confirming no open wounds at 16 weeks post-extraction. Euthanasia was performed at 18 weeks post-extraction. Microcomputed tomography, histological stains and immunostaining to detect blood vessels and macrophages were performed to quantitatively analyze wound healing around implants. ALN/DEX combination therapy significantly increased necrotic bone with more empty lacunae and polymorphonuclear cell infiltration with open wounds when compared with all other therapy groups. Necrotic bone was broadly distributed from the crestal bone to the lower area near the apex of the implants in the ALN/DEX group. Interestingly, both ALN/DEX combination therapy and DEX monotherapy significantly increased the number of CD68+NG2- macrophages, whereas only ALN/DEX combination therapy, not DEX monotherapy, significantly shifted the M1/M2 ratio to M1 by significant increases in M1 macrophages and unchanged M2 macrophages in the connective tissue around implants. Within the limitations of this study, these findings may contribute to understanding the early stages of the histopathology and immunopathology of BRONJ-like lesions around dental implants. Continuous accumulation of M1 macrophages without alteration of M2 macrophages may be associated with developing BRONJ around implants.
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Affiliation(s)
- Maaya Inoue
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
| | - Chihaya Matsumoto
- Department of Prosthetic Dentistry, Ohu University School of Dentistry, Koriyama 963-8611, Japan
| | - Kazunori Nakajima
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
| | - Shinichiro Kuroshima
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan.
| | - Takashi Sawase
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
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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: 9] [Impact Index Per Article: 3.0] [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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Silva RAB, Sousa‐Pereira AP, Lucisano MP, Romualdo PC, Paula‐Silva FWG, Consolaro A, Silva LAB, Nelson‐Filho P. Alendronate inhibits osteocyte apoptosis and inflammation via
IL
‐6, inhibiting bone resorption in periapical lesions of ovariectomized rats. Int Endod J 2019; 53:84-96. [DOI: 10.1111/iej.13206] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/16/2019] [Indexed: 01/29/2023]
Affiliation(s)
- R. A. B. Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | | | - M. P. Lucisano
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - P. C. Romualdo
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - F. W. G. Paula‐Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - A. Consolaro
- Department of Stomatology Bauru School of Dentistry University of São Paulo Bauru Brazil
| | - L. A. B. Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - P. Nelson‐Filho
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
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Chronic treatment with zoledronic acid alters the expression levels of inflammatory, bone, and apoptotic markers and Toll-like receptors 2 and 4 in rat dental pulp. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 128:139-145. [DOI: 10.1016/j.oooo.2019.01.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/09/2019] [Accepted: 01/28/2019] [Indexed: 12/14/2022]
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Hidaka K, Mikuni-Takagaki Y, Wada-Takahashi S, Saita M, Kawamata R, Sato T, Kawata A, Miyamoto C, Maehata Y, Watabe H, Tani-Ishii N, Hamada N, Takahashi SS, Deguchi S, Takeuchi R. Low-Intensity Pulsed Ultrasound Prevents Development of Bisphosphonate-Related Osteonecrosis of the Jaw-Like Pathophysiology in a Rat Model. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:1721-1732. [PMID: 31006496 DOI: 10.1016/j.ultrasmedbio.2019.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/21/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
We developed a rat model of bisphosphonate-related osteonecrosis of the jaw (BRONJ) by removing a maxillary molar tooth (M1) from ovariectomized rats after treatment with alendronate. To mimic periodontitis, some of the rats were administered Porphyromonas gingivalis (p. gingivalis) at the M1 site every 2 to 3 d for 2 wk. Rats pretreated with alendronate plus p. gingivalis showed delayed healing of socket epithelia, periosteal reaction of alveolar bone formation and lower bone mineral density in the alveolus above adjacent M2 teeth. These abnormalities were prevented by tooth socket exposure to 20 min/d low-intensity pulsed ultrasound (LIPUS), which restored diminished expression of RANKL, Bcl-2, IL-6, Hsp70, NF-κB and TNF-α messenger ribonucleic acids in remote bone marrow, suggesting LIPUS prevented development of BRONJ-like pathophysiology in rat by inducing systemic responses for regeneration, in addition to accelerating local healing. Non-invasive treatment by LIPUS, as well as low-level laser therapy, may be useful for medication-related osteonecrosis of the jaw patients.
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Affiliation(s)
- Kouki Hidaka
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yuko Mikuni-Takagaki
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan.
| | - Satoko Wada-Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Makiko Saita
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryota Kawamata
- Department of Dentomaxillofacial Diagnosis and Treatment, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Takenori Sato
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Akira Kawata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Chihiro Miyamoto
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yojiro Maehata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Hirotaka Watabe
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobuyuki Tani-Ishii
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobushiro Hamada
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shun-Suke Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shinji Deguchi
- Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryohei Takeuchi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Joint Surgery Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
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13
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Abstract
PURPOSE OF REVIEW We reviewed recent literature on oxygen sensing in osteogenic cells and its contribution to development of a skeletal phenotype, the coupling of osteogenesis with angiogenesis and integration of hypoxia into canonical Wnt signaling, and opportunities to manipulate oxygen sensing to promote skeletal repair. RECENT FINDINGS Oxygen sensing in osteocytes can confer a high bone mass phenotype in murine models; common and unique targets of HIF-1α and HIF-2α and lineage-specific deletion of oxygen sensing machinery suggest differentia utilization and requirement of HIF-α proteins in the differentiation from mesenchymal stem cell to osteoblast to osteocyte; oxygen-dependent but HIF-α-independent signaling may contribute to observed skeletal phenotypes. Manipulating oxygen sensing machinery in osteogenic cells influences skeletal phenotype through angiogenesis-dependent and angiogenesis-independent pathways and involves HIF-1α, HIF-2α, or both proteins. Clinically, an FDA-approved iron chelator promotes angiogenesis and osteogenesis, thereby enhancing the rate of fracture repair.
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Affiliation(s)
- Clare E Yellowley
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, Davis, CA, 95616, USA
| | - Damian C Genetos
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, Davis, CA, 95616, USA.
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14
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França TRTD, Ramos-Perez FMDM, Pontual ADA, Castro JFLD, Bonan PRF, Perez DEDC. Effects of Zoledronic Acid in Experimental Periapical Lesions in Rats: An Imaging and Histological Analysis. Braz Dent J 2018; 28:566-572. [PMID: 29215680 DOI: 10.1590/0103-6440201601558] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/23/2017] [Indexed: 01/06/2023] Open
Abstract
The aim of this study was to assess the imaging and histological features of experimental periapical lesions, including the adjacent alveolar bone, in rats under zoledronic acid treatment. The study used 40 male Wistar rats distributed into 8 groups of 5 animals each: G1: induction of periapical lesion (PL) and weekly intraperitoneal administration (WIPA) of saline solution (0.9% NaCl) for 4 weeks; G2: PL induction and WIPA of zoledronic acid (0.15 mg/kg/week) for 4 weeks; G3: PL induction and WIPA of saline solution for 8 weeks; G4: PL induction and WIPA of zoledronic acid for 8 weeks; G5:WIPA of saline solution for 4 weeks and subsequent PL induction; G6: WIPA of zoledronic acid for 4 weeks and subsequent PL induction; G7: WIPA of saline solution for 8 weeks and subsequent PL induction; G8: WIPA of zoledronic acid for 8 weeks and subsequent PL induction. The administration of zoledronic acid or saline solution continued after PL induction until the euthanasia. Thus, cone beam computed tomography and histological analysis were performed. Statistical analyzes were performed by ANOVA and Kruskal-Wallis test. Groups treated with zoledronic acid showed significantly smaller size of PL than the groups treated with 0.9% NaCl (p<0.05). PLs were formed by chronic inflammation ranging from mild to moderate, with no difference between groups. In all specimens, no mandibular necrosis was observed. In conclusion, the presence of PLs apparently does not represent an important risk factor for the development of bisphosphonate-related osteonecrosis of the jaws.
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Affiliation(s)
- Talita Ribeiro Tenório de França
- School of Dentistry, Department of Clinic and Preventive Dentistry, UFPE: Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Andrea Dos Anjos Pontual
- School of Dentistry, Department of Clinic and Preventive Dentistry, UFPE: Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Jurema Freire Lisboa de Castro
- School of Dentistry, Department of Clinic and Preventive Dentistry, UFPE: Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Danyel Elias da Cruz Perez
- School of Dentistry, Department of Clinic and Preventive Dentistry, UFPE: Universidade Federal de Pernambuco, Recife, PE, Brazil
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15
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Abstract
Newer research tools and basic science knowledge base have allowed the exploration of endodontic diseases in the pulp and periapical tissues in novel ways. The use of next generation sequencing, bioinformatics analyses, genome-wide association studies, to name just a few of these innovations, has allowed the identification of hundreds of microorganisms and of host response factors. This review addresses recent advances in endodontic microbiology and the host response and discusses the potential for future innovations in this area.
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Affiliation(s)
- Ashraf F Fouad
- Department of Endodontics, School of Dentistry, University of North Carolina at Chapel Hill, 1098 First Dental Building, CB# 7450, Chapel Hill, NC 27599-7450, USA.
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16
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Role of Periapical Diseases in Medication-Related Osteonecrosis of the Jaws. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1560175. [PMID: 29109954 PMCID: PMC5646299 DOI: 10.1155/2017/1560175] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 08/29/2017] [Indexed: 12/05/2022]
Abstract
Objective The present study aimed to investigate the role of periapical diseases in inducing medication-related osteonecrosis of the jaws (MRONJ) using an ovariectomized (OVX) mice model. Materials and Methods Twenty C57BL/6N female mice were randomly assigned to two groups. All mice were subjected to bilateral ovariectomy and then treated with oncologic dose of zoledronic acid (ZA) or vehicle for twelve weeks. Eight weeks after commence of drug administration, a pulpal exposure (PE) operation was performed on the first right lower molar to induce periapical periodontitis; the contralateral non-PE tooth was used as control. All animals were sacrificed four weeks after pulpal exposure, and the mandibles were harvested for radiological and histomorphometrical analysis. Results Micro computed tomography (μ-CT) examination demonstrated that periapical diseases significantly increased alveolar bone resorption, and the resorption was greatly attenuated by ZA treatment. Concurrent ZA therapy significantly increased bone density and histological osteocyte necrosis in the presence of periapical lesions. Conclusion ZA treatment reduced bone absorption resulting from periapical disease but increased the risk of developing MRONJ in the ovariectomized mouse model.
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17
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de Barros Silva PG, de Oliveira CC, Brizeno L, Wong D, Lima Júnior R, Gonçalves RP, Sousa FB, Mota M, de Albuquerque Ribeiro R, Alves A. Immune cellular profile of bisphosphonate-related osteonecrosis of the jaw. Oral Dis 2016; 22:649-57. [PMID: 27232600 DOI: 10.1111/odi.12513] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/09/2016] [Accepted: 05/02/2016] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Characterize the cell profile and immunostaining of proinflammatory markers in an experimental model of bisphosphonate-related osteonecrosis of the jaw (BRONJ). MATERIALS AND METHODS Male Wistar rats (n = 6-7) were treated chronically with saline solution or zoledronic acid (ZA) at 0.04, 0.20, and 1.00 mg kg(-1) (1.4 × 10(-7) , 6.9 × 10(-6) , and 3.4 × 10(-5) mol kg(-1) ), and subsequently, the first left inferior molar was extracted. Were performed counting of viable and empty osteocyte lacunae, viable and apoptotic osteoclasts, polymorphonuclear neutrophil, mast cells (toluidine blue), and the positive presence cells for CD68, tumor necrosis factor-alpha (TNF-α), IL (interleukin)-1β, inducible nitric oxide synthase (iNOS), nuclear factor-kappa B (NF-kB) and IL-18 binding protein (IL-18 bp). RESULTS BRONJ was showed in ZA treated with 0.20 and 1.00 mg kg(-1) . There is a dose dependent increase in percentage of empty osteocyte lacunae (P < 0.001) and apoptotic osteoclasts (P < 0.001), counting of total osteoclasts (P = 0.003), polymorphonuclear neutrophil cells (P = 0.009), cytoplasmic-positive cells of CD68 (P < 0.001), TNF-α (P = 0.001), IL-1β (P = 0.001), iNOS (P < 0.001), NF-kB (P = 0.006), and nuclear-positive cells of NF-kB (P = 0.011). Consequently, there is no difference in mast cells (P = 0.957), and IL-18 bp immunostaining decreases dose dependently (P = 0.005). CONCLUSIONS BRONJ is characterized by increases in immunostaining for proinflammatory markers and NF-kB and inversely associated with cells exhibiting IL-18 bp.
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Affiliation(s)
- P G de Barros Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil.
| | - C C de Oliveira
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Lac Brizeno
- Department of Biotechnology, Faculty of Biotechnology, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Dvt Wong
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Rcp Lima Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - R P Gonçalves
- Department of Clinical Analysis, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - F B Sousa
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Mrl Mota
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - R de Albuquerque Ribeiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Apnn Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
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18
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Wayama MT, Yoshimura H, Ohba S, Yoshida H, Matsuda S, Kobayashi J, Kobayashi M, Gomes Filho JE, Sano K. Diminished Progression of Periapical Lesions with Zoledronic Acid in Ovariectomized Rats. J Endod 2015; 41:2002-7. [DOI: 10.1016/j.joen.2015.08.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 08/09/2015] [Accepted: 08/29/2015] [Indexed: 11/27/2022]
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19
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de Molon RS, Shimamoto H, Bezouglaia O, Pirih FQ, Dry SM, Kostenuik P, Boyce RW, Dwyer D, Aghaloo TL, Tetradis S. OPG-Fc but Not Zoledronic Acid Discontinuation Reverses Osteonecrosis of the Jaws (ONJ) in Mice. J Bone Miner Res 2015; 30:1627-40. [PMID: 25727550 PMCID: PMC4995600 DOI: 10.1002/jbmr.2490] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 02/20/2015] [Accepted: 02/24/2015] [Indexed: 11/10/2022]
Abstract
Osteonecrosis of the jaws (ONJ) is a significant complication of antiresorptive medications, such as bisphosphonates and denosumab. Antiresorptive discontinuation to promote healing of ONJ lesions remains highly controversial and understudied. Here, we investigated whether antiresorptive discontinuation alters ONJ features in mice, employing the potent bisphosphonate zoledronic acid (ZA) or the receptor activator of NF-κB ligand (RANKL) inhibitor OPG-Fc, utilizing previously published ONJ animal models. Mice were treated with vehicle (veh), ZA, or OPG-Fc for 11 weeks to induce ONJ, and antiresorptives were discontinued for 6 or 10 weeks. Maxillae and mandibles were examined by μCT imaging and histologically. ONJ features in ZA and OPG-Fc groups included periosteal bone deposition, empty osteocyte lacunae, osteonecrotic areas, and bone exposure, each of which substantially resolved 10 weeks after discontinuing OPG-Fc but not ZA. Full recovery of tartrate-resistant acid phosphatase-positive (TRAP+) osteoclast numbers occurred after discontinuing OPG-Fc but not ZA. Our data provide the first experimental evidence demonstrating that discontinuation of a RANKL inhibitor, but not a bisphosphonate, reverses features of osteonecrosis in mice. It remains unclear whether antiresorptive discontinuation increases the risk of skeletal-related events in patients with bone metastases or fracture risk in osteoporosis patients, but these preclinical data may nonetheless help to inform discussions on the rationale for a "drug holiday" in managing the ONJ patient.
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Affiliation(s)
- Rafael Scaf de Molon
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA, USA.,Department of Diagnosis and Surgery, School of Dentistry at Araraquara, S, ã, o Paulo State University, Araraquara, Brazil
| | - Hiroaki Shimamoto
- Department of Oral and Maxillofacial Radiology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Olga Bezouglaia
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Flavia Q Pirih
- Division of Associated Specialties, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Sarah M Dry
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Paul Kostenuik
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Rogely W Boyce
- Department of Comparative Biology and Safety Sciences, Amgen Inc., Thousand Oaks, CA, USA
| | - Denise Dwyer
- Department of Comparative Biology and Safety Sciences, Amgen Inc., Thousand Oaks, CA, USA
| | - Tara L Aghaloo
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Sotirios Tetradis
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA, USA.,Molecular Biology Institute, UCLA, Los Angeles, CA, USA
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20
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Allen MR. Medication-Related Osteonecrosis of the Jaw: Basic and Translational Science Updates. Oral Maxillofac Surg Clin North Am 2015; 27:497-508. [PMID: 26277349 DOI: 10.1016/j.coms.2015.06.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the late 1990s and the early 2000s, bisphosphonates had become the clinical pillar of excellence for treating metabolic bone disease, and thus their connection with osteonecrosis of the jaw (ONJ) caused significant concern. Over the past decade, progress has been made in understanding what is now referred to as medication-related ONJ (MRONJ), because of its connections to agents other than bisphosphonates, although in many respects the progress has been slow. This review highlights the key basic science and translational (animal) studies in the area of MRONJ and suggests areas of focus as the field moves into the next decade.
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Affiliation(s)
- Matthew R Allen
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, 635 Barnhill Drive, MS-5035, Indianapolis, IN 46202, USA.
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21
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DurmuŞlar MC, Alpaslan C, Alpaslan G, Çakır M, Kahali R, Nematollahi Z. Clinical and radiographic evaluation of the efficacy of platelet-rich plasma combined with hydroxyapatite bone graft substitutes in the treatment of intra-bony defects in maxillofacial region. Acta Odontol Scand 2014; 72:948-53. [PMID: 25005628 DOI: 10.3109/00016357.2014.926023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The aim of this study is to evaluate the efficacy of platelet-rich plasma (PRP) clinically and radiographically when combined with bovine derived hydroxyapatite (HA) bone grafting materials and resorbable collagen membranes for the treatment of intra-bony defects frequently seen at the distal aspect of mandibular second molars following the surgical extraction of fully impacted mandibular wisdom teeth. STUDY DESIGN Eighteen patients were scheduled for post-operative visits at 1, 3 and 6 months post-operatively, probing depths were measured and digital panoramic radiographs were taken. RESULTS There were no significant differences on probing depths among two groups. Radiographic assessment also showed no significant difference among groups at 1st and 6th month intervals, while 3 months post-operatively the amount of radiographic density at the PRP side was significantly higher. CONCLUSION Combined use of PRP and bovine-derived HA graft materials for the treatment of intra-bony defects might be an appropriate approach when the main goal is providing earlier bone regeneration.
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Affiliation(s)
| | | | | | | | - Roozbeh Kahali
- Department of Oral and Maxillofacial Surgery, Buali Hospital, Azad University of Medical Sciences, Tehran, IR Iran
| | - Zahra Nematollahi
- School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
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22
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Aghaloo TL, Cheong S, Bezouglaia O, Kostenuik P, Atti E, Dry SM, Pirih FQ, Tetradis S. RANKL inhibitors induce osteonecrosis of the jaw in mice with periapical disease. J Bone Miner Res 2014; 29:843-54. [PMID: 24115073 PMCID: PMC4476544 DOI: 10.1002/jbmr.2097] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/24/2013] [Accepted: 09/05/2013] [Indexed: 12/20/2022]
Abstract
Antiresorptive medications are essential in treating diseases of pathologic osteoclastic bone resorption, including bone cancer and osteoporosis. Bisphosphonates (BPs) are the most commonly used antiresorptives in clinical practice. Although inhibition of bone resorption is important in regulating unwanted malignant and metabolic osteolysis, BP treatment is associated with potential side effects, including osteonecrosis of the jaws (ONJ). Recently, non-BP antiresorptive medications targeting osteoclastic function and differentiation, such as denosumab, have entered the clinical arena. Denosumab treatment results in a similar rate of ONJ as BPs. Animal models of ONJ, using high-dose BP treatment in combination with tooth extraction or dental disease, provide valuable tools and insight in exploring ONJ pathophysiology. However, the ability of other antiresorptives to induce ONJ-like lesions in animal models has not been explored. Such studies would be beneficial in providing support for the role of osteoclast inhibition in ONJ pathogenesis versus a direct BP effect on oral tissues. Here, we tested the ability of the receptor activator of NF-κB ligand (RANKL) inhibitors RANK-Fc (composed of the extracellular domain of RANK fused to the fragment crystallizable [Fc] portion of immunoglobulin G [IgG]) and OPG-Fc (composed of the RANKL-binding domains of osteoprotegerin [OPG] linked to the Fc portion of IgG) to induce ONJ in mice in the presence of periapical disease, but in the absence of dental extractions. We demonstrate radiographic evidence of ONJ in RANK-Fc-treated and OPG-Fc-treated mice, including inhibition of bone loss, increased bone density, lamina dura thickening, and periosteal bone deposition. These findings closely resembled the radiographic appearance of an ONJ patient on denosumab treatment. Histologic examination revealed that RANK-Fc treatment and OPG-Fc treatment resulted in absence of osteoclasts, periosteal bone formation, empty osteocytic lacunae, osteonecrosis, and bone exposure. In conclusion, we have successfully induced ONJ in mice with periapical disease, using potent osteoclast inhibitors other than BPs. Our findings, coupled with ONJ animal models using high-dose BPs, suggest that osteoclast inhibition is pivotal to the pathogenesis of ONJ.
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Affiliation(s)
- Tara L Aghaloo
- Division of Diagnostic and Surgical Sciences, School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
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23
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Sarkarat F, Kalantar Motamedi MH, Jahanbani J, Sepehri D, Kahali R, Nematollahi Z. Platelet-Rich Plasma in Treatment of Zoledronic Acid-Induced Bisphosphonate-related Osteonecrosis of the Jaws. Trauma Mon 2014; 19:e17196. [PMID: 25032151 PMCID: PMC4080617 DOI: 10.5812/traumamon.17196] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 01/27/2014] [Indexed: 11/30/2022] Open
Abstract
Background: Bisphosphonate-related osteonecrosis of the jaws (BRONJ) is a well-known challenging entity warranting management. Platelet-Rich Plasma (PRP) plays an important role in bone biology by enhancing bone repair and regeneration. Objectives: The aim of this animal study was to evaluate the effects of PRP on zoledronic acid-induced BRONJ. Materials and Methods: Seven rats were given 0.04 mg Zoledronic acid intravenously once a week for five weeks. Two weeks later, the animals underwent extraction of their first lower molars, bilaterally. After clinical confirmation of the osteonecrosis, PRP was injected randomly into one of the extraction sockets of each rat. Three weeks later, all rats were sacrificed in order to obtain histological sections. The analysis of epithelialization was performed by McNamar’s test, and the analysis of osteogenesis and angiogenesis was performed by the Wilcoxon Sign Rank test. P value was set at 0.05. Results: We found no significant differences between the two groups regarding the amount of epithelialization, angiogenesis or sequestrum formation (P > 0.05), but a significant difference was seen between the two groups regarding the amount of existing vital bone (P < 0.05). Conclusions: Our study demonstrates positive results (preservation or regeneration of bone) using PRP in treatment of BRONJ. Although PRP may enhance osseous regeneration, long-term follow-ups are required to confirm its benefits.
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Affiliation(s)
- Farzin Sarkarat
- Department of Oral and Maxillofacial Surgery, Buali Hospital, Azad University of Medical Sciences, Tehran, IR Iran
| | - Mohammad Hosein Kalantar Motamedi
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
- Department of Maxillofacial Surgery, Azad University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Mohammad Hosein Kalantar Motamedi, Trauma Research Center, Office of the Editor, Baqiyatallah University of Medical Sciences, Tehran, IR Iran. Tel.: +98-9121937154, Fax: +98-2188053766, E-mail:
| | - Jahanfar Jahanbani
- Department of Oral and Maxillofacial Pathology, Dental Branch, Azad University of Medical Sciences, Tehran, IR Iran
| | | | - Roozbeh Kahali
- Department of Oral and Maxillofacial Surgery, Buali Hospital, Azad University of Medical Sciences, Tehran, IR Iran
| | - Zahra Nematollahi
- School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
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24
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Bezerra da Silva RA, Nelson-Filho P, Lucisano MP, De Rossi A, de Queiroz AM, Bezerra da Silva LA. MyD88 knockout mice develop initial enlarged periapical lesions with increased numbers of neutrophils. Int Endod J 2013; 47:675-86. [DOI: 10.1111/iej.12204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/10/2013] [Indexed: 12/13/2022]
Affiliation(s)
- R. A. Bezerra da Silva
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - P. Nelson-Filho
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - M. P. Lucisano
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - A. De Rossi
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - A. M. de Queiroz
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - L. A. Bezerra da Silva
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
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Cintra LTA, Samuel RO, Facundo ACS, Prieto AKC, Sumida DH, Bomfim SRM, Souza JC, Dezan-Júnior E, Gomes-Filho JE. Relationships between oral infections and blood glucose concentrations or HbA1c levels in normal and diabetic rats. Int Endod J 2013; 47:228-37. [DOI: 10.1111/iej.12136] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 05/02/2013] [Indexed: 11/27/2022]
Affiliation(s)
- L. T. A. Cintra
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - R. O. Samuel
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - A. C. S. Facundo
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - A. K. C. Prieto
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - D. H. Sumida
- Department of Basic Science; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - S. R. M. Bomfim
- Department of Clinic and Surgery and Animal Reproduction; Araçatuba Veterinary Medicine; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - J. C. Souza
- Department of Clinic and Surgery and Animal Reproduction; Araçatuba Veterinary Medicine; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - E. Dezan-Júnior
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - J. E. Gomes-Filho
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
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Goes P, Melo IM, Silva LMCM, Benevides NMB, Alencar NMN, Ribeiro RA, Lima V. Low-dose combination of alendronate and atorvastatin reduces ligature-induced alveolar bone loss in rats. J Periodontal Res 2013; 49:45-54. [DOI: 10.1111/jre.12077] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2013] [Indexed: 01/21/2023]
Affiliation(s)
- P. Goes
- Department of Clinical Dentistry; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - I. M. Melo
- Department of Clinical Dentistry; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - L. M. C. M. Silva
- Department of Biochemical and Molecular Biology; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - N. M. B. Benevides
- Department of Biochemical and Molecular Biology; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - N. M. N. Alencar
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - R. A. Ribeiro
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - V. Lima
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
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Akman S, Canakci V, Kara A, Tozoglu U, Arabaci T, Dagsuyu İM. Therapeutic Effects of Alpha Lipoic Acid and Vitamin C on Alveolar Bone Resorption After Experimental Periodontitis in Rats: A Biochemical, Histochemical, and Stereologic Study. J Periodontol 2013; 84:666-74. [DOI: 10.1902/jop.2012.120252] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Vasconcelos ACU, de Azambuja Berti-Couto S, Figueiredo MA, Salum FG, Lopes TG, Cherubini K. Laboratory methods and biomarkers in the evaluation of bisphosphonate effects on body tissues: a literature review. J Oral Pathol Med 2012; 42:577-86. [PMID: 23278676 DOI: 10.1111/jop.12031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2012] [Indexed: 01/06/2023]
Affiliation(s)
- Ana Carolina Uchoa Vasconcelos
- Postgraduate Program; Dental College; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
| | - Soraya de Azambuja Berti-Couto
- Postgraduate Program; Dental College; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
| | - Maria Antonia Figueiredo
- Postgraduate Program; Dental College; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
| | - Fernanda Gonçalves Salum
- Postgraduate Program; Dental College; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
| | - Tiago Giuliani Lopes
- Department of Pathology; School of Medicine; Hospital São Lucas; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
| | - Karen Cherubini
- Postgraduate Program; Dental College; Pontifical Catholic University of Rio Grande do Sul - PUCRS; Porto Alegre RS Brazil
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29
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Current World Literature. Curr Opin Support Palliat Care 2011; 5:297-305. [DOI: 10.1097/spc.0b013e32834a76ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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