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https://www.readbyqxmd.com/read/29453497/bone-mineralization-and-vascularization-in-bisphosphonate-related-osteonecrosis-of-the-jaw-an-experimental-study-in-the-rat
#1
Jean-Daniel Kün-Darbois, Hélène Libouban, Guillaume Mabilleau, Florence Pascaretti-Grizon, Daniel Chappard
OBJECTIVES: Pathogenesis of bisphosphonate-related osteonecrosis of the jaws (BRONJ) is not fully explained. An antiangiogenic effect of bisphosphonates (BPs) or an altered bone quality have been advocated. The aims of the present study were to analyze alveolar mandibular vascularization and bone quality in rats with BRONJ. MATERIALS AND METHODS: Thirty-eight Sprague-Dawley rats were randomized into two groups: zoledronic acid (ZA), n = 27, and control (CTRL) n = 11...
February 16, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29435826/efficacy-of-bovine-lactoferrin-in-the-post-surgical-treatment-of-patients-suffering-from-bisphosphonate-related-osteonecrosis-of-the-jaws-an-open-label-study
#2
Francesco Calvani, Antimo Cutone, Maria Stefania Lepanto, Luigi Rosa, Valentino Valentini, Piera Valenti
Osteonecrosis of the jaws is an emerging pathological condition characterized by un-exposure or exposure of the necrotic bone, independently from the etiology. This term is usually referred to medication-related osteonecrosis of the jaws due to severe adverse reaction to certain medicines, as bisphosphonates, used for the treatment of cancer and osteoporosis. The management of patients with Bisphosphonate-Related Osteonecrosis of the Jaws (BRONJ) remains challenging because surgical and medical interventions may not eradicate this pathology...
February 12, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29412504/preventive-dental-management-of-osteonecrosis-of-the-jaws-related-to-zoledronic-acid-treatment
#3
J A Coello-Suanzes, V Rollon-Ugalde, A Castaño-Seiquer, E Lledo-Villar, J Herce-Lopez, P Infante-Cossio, A Rollon-Mayordomo
OBJECTIVE: To evaluate the effect of preventive dental management on reducing the incidence and delaying the onset of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in patients treated with intravenous zoledronic acid (ZA). MATERIAL AND METHODS: This single-center clinical study included 255 cancer patients monitored over a 6-year period. Patients received dental treatment prior (Group A) or after (Group B) the initiation of ZA therapy. Dental treatments performed, incidence proportion (IP) and incidence rate (IR) in both groups were analyzed using significance tests...
February 7, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29410755/influence-of-the-teaching-program-on-the-learning-in-knowledge-and-practice-of-osteonecrosis-of-the-jaws-produced-by-antireasorptives-in-dental-students-of-the-principality-of-asturias-spain
#4
Matias-Ferrán Escobedo, Luis García-Consuegra, Silvia Gay, Lorena Álvarez, Sonsoles Olay, Giuliano Ascani, Luis Junquera
Background: This study aims to evaluate the influence of changes in the teaching contents on medication-related osteonecrosis of the jaw may have on the knowledge and the capacity for practical case resolution about this pathology. Material and Methods: A cross-sectional descriptive study was conducted through a survey divided into four sections: degree of means of knowledge acquisition, habitual practice and ability to solve clinical cases. The total number of respondents (n = 225) was divided into two groups: Group A (Year 2015-2016) and Group B (Year 2016-2017)...
December 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29408511/removal-of-matrix-bound-zoledronate-prevents-post-extraction-osteonecrosis-of-the-jaw-by-rescuing-osteoclast-function
#5
Ranya Elsayed, Pheba Abraham, Mohamed E Awad, Zoya Kurago, Balasudha Baladhandayutham, Gary M Whitford, David H Pashley, Charles E McKenna, Mohammed E Elsalanty
Unlike other antiresorptive medications, bisphosphonate molecules accumulate in the bone matrix. Previous studies of side-effects of anti-resorptive treatment focused mainly on systemic effects. We hypothesize that matrix-bound bisphosphonate molecules contribute to the pathogenesis of bisphosphonate-related osteonecrosis of the jaw (BRONJ). In this study, we examined the effect of matrix-bound bisphosphonates on osteoclast differentiation in vitro using TRAP staining and resorption assay, with and without pretreatment with EDTA...
February 8, 2018: Bone
https://www.readbyqxmd.com/read/29380898/cytoprotective-effect-of-flavonoid-induced-autophagy-on-bisphosphonate-mediated-cell-death-in-osteoblast
#6
Jung-Han Kim, Hae-Mi Kang, Su-Bin Yu, Jae-Min Song, Chul-Hoon Kim, Bok-Joo Kim, Bong-Soo Park, Sang-Hun Shin, In-Ryoung Kim
With rapid economic growth and further developments in medical science, the entry into the aging population is currently increasing, as is the number of patients with metabolic diseases, such as hypertension, hyperlipidemia, heart disease, and diabetes. The current treatments for metabolic bone diseases, which are also on the rise, cause negative side effects. Bisphosphonates, which are used to treat osteoporosis, inhibit the bone resorption ability of osteoclasts and, during prolonged administration, cause bisphosphonate-related osteonecrosis of the jaw (BRONJ)...
January 30, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29365278/ct-imaging-features-of-antiresorptive-agent-related-osteonecrosis-of-the-jaw-medication-related-osteonecrosis-of-the-jaws
#7
Akira Baba, Tazuko K Goto, Hiroya Ojiri, Mutsumi Takagiwa, Chiho Hiraga, Masahiro Okamura, Sho Hasegawa, Yumi Okuyama, Nobuhiro Ogino, Hideomi Yamauchi, Yuko Kobashi, Shinji Yamazoe, Yohei Munetomo, Takuji Mogami, Takeshi Nomura
OBJECTIVES: Antiresorptive agent-related osteonecrosis of the jaw (ARONJ)/medication-related osteonecrosis of the jaw (MRONJ) include both bisphosphonate-related osteonecrosis of jaw (BRONJ) and denosumab-related osteonecrosis of jaw (DRONJ). The purpose of this study is to study radiological characteristics of ARONJ/MRONJ. These imaging features may serve as one useful aid for assessing ARONJ/MRONJ. METHODS: CT scans of 74 Japanese patients, who were clinically diagnosed by inclusion criteria of ARONJ/MRONJ, obtained between April 1, 2011 and September 31, 2016, were evaluated...
January 24, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29236901/collagen-sponge-and-rhbmp-2-improve-socket-healing-in-rats-treated-with-zoledronic-acid
#8
Ji-Su Oh, Su-Gwan Kim
The aim of the present study was to evaluate the possible use of a commercial absorbed collagen sponge and bone morphogenetic protein (BMP) for the prevention of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in rats. Twenty rats received intraperitoneal injections of 0.1-mg/kg of zoledronic acid three times a week for eight weeks before the extraction of both maxillary first molars after eight weeks. A collagen sponge (experimental group 1) and a collagen sponge with recombinant human BMP-2 (experimental group 2) were applied to the right extraction sockets of ten rats each...
December 7, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/29233701/in%C3%A2-vivo-effects-of-geranylgeraniol-on-the-development-of-bisphosphonate-related-osteonecrosis-of-the-jaws
#9
Filip Koneski, Danica Popovic-Monevska, Icko Gjorgoski, Jovanka Krajoska, Mirjana Popovska, Ilijana Muratovska, Boris Velickovski, Gordana Petrushevska, Vladimir Popovski
BACKGROUND: Bisphosphonate-related osteonecrosis of the jaws (BRONJ) is a complication of the bisphosphonate (BP) treatment and its pathopysiology is still not fully understood. The existing preventive and treatment options require updates and more attention. Geranylgeraniol (GGOH) so far demonstrated an increased activity and viability of the cells previously treated with zoledronic acid (ZA). The aim of this study was to evaluate the in vivo effects of GGOH on the development of BRONJ...
November 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29155533/conservative-prosthetic-rehabilitation-of-medication-related-osteonecrosis-of-the-jaw-mronj
#10
Alexandra Johanna Leven, Antony J Preston
Osteonecrosis of the jaw associated with bisphosphonates and other medications is a growing problem facing dentists. It can have a significant and debilitating impact upon patients. Various treatment options ranging from surgical intervention to management with antibiotics and analgesics have been proposed. This article presents one method of conservative treatment and prosthetic rehabilitation in a patient with ongoing BRONJ of the maxilla unsuitable for surgical management. Clinical relevance: Dentists need to be able to identify patients who are at risk of developing BRONJ and have an awareness of the appropriate management as well as potential oral rehabilitation options for these patients...
December 2016: Dental Update
https://www.readbyqxmd.com/read/29130610/the-effects-of-icariin-on-wound-healing-of-extraction-sites-with-administration-of-zoledronic-and-dexamethasone-a-rat-model-study
#11
Jie Liu, Nikos Mattheos, Cheng Su, Chuanxi Deng, Nanyu Luo, Zekun Wang, Hua Tang
OBJECTIVE: This study was intended to investigate the effects of Icariin on the healing of tooth extraction sites under systemic administration of Zoledronic and Dexamethasone. METHOD: Thirty female rats underwent bilateral ovariectomy and were randomly assigned to 5 groups: SS group received weekly injection of saline while ZD, ZD+LICA, ZD+MICA and ZD+HICA groups received Zoledronic with Dexamethasone for 8 weeks. One week later, mandibular first molars were extracted in all groups...
November 11, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29109842/submental-perforator-flap-for-soft-tissue-reconstruction-in-bisphosphonate-related-osteonecrosis-of-the-jaws
#12
Jose-Antonio García-de Marcos, Juan Rey-Biel
Bisphosphonate-related osteonecrosis of the jaws (BRONJ) has emerged as an important and increasingly common comorbidity, especially in patients undergoing long-term treatment with high doses of bisphosphonates. The management of BRONJ remains controversial. Surgical treatment is necessary in severe cases. Treatment of the bone requires sequestrectomy or resection. Given the lack of sufficient mucosa to perform the operation and fragility of margins in many patients, local flaps are crucial. We report two cases of stage-3 BRONJ presenting secondary infection with Actinomyces , receiving treatment consisting of marginal resection of the necrotic bone, reinforcement with a reconstruction plate, and reconstruction of soft tissues using a submental perforator artery flap ipsilateral to the lesion...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28965092/attitudes-and-perceptions-of-gps-and-community-pharmacists-towards-their-role-in-the-prevention-of-bisphosphonate-related-osteonecrosis-of-the-jaw-a-qualitative-study-in-the-north-east-of-england
#13
Andrew Sturrock, Philip M Preshaw, Catherine Hayes, Scott Wilkes
BACKGROUND: Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a rare, yet significant, adverse effect of bisphosphonate therapy. A multidisciplinary approach to the prevention of BRONJ is recommended due to the significant morbidity and difficulty treating the condition. Current evidence suggests that both general practitioners (GPs) and community pharmacists have limited knowledge relating to BRONJ and that preventative strategies are rarely implemented. OBJECTIVE: To explore the attitudes and perceptions of GPs and community pharmacists on the risks and preventative strategies for the development of BRONJ...
September 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/28958140/platelet-rich-fibrin-in-the-management-of-medication-related-osteonecrosis-of-the-jaw-a-clinical-and-histopathological-evaluation
#14
F Inchingolo, S Cantore, G Dipalma, I Georgakopoulos, M Almasri, E Gheno, A Motta, M Marrelli, D Farronato, A Ballini, A Marzullo
Bisphosphonates are antiresorptive pharmacological agents used in the treatment of osteoporosis. Recently, osteonecrosis of the jaw has been recognized as a potential side effect in patients on long-term bisphosphonate therapy. This condition, popularly called bisphosphonate-related osteonecrosis of the jaw (BRONJ), has been rechristened as MRONJ (medication-related osteonecrosis of the jaw) to accommodate the increasing number of cases of osteonecrosis of jaws associated with various other antiresorptive and antigiogenic pharmacological therapies...
July 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28947697/-dental-implant-treatment-in-patients-receiving-anti-resorptive-agents
#15
Shinichiro Kuroshima
Dental implant treatment is one of the most reliable therapeutic options for replacing missing teeth. In 2003, it was demonstrated that osteonecrosis of the jaw(ONJ)occurred in patients taking bisphosphonates(BRONJ). Recently, ONJ has also been demonstrated to occur in patients taking anti-receptor activator of nuclear factor-kappaB ligand antibody(denosumab:DRONJ). However, the precise mechanisms of ONJ remain unclear and definitive treatment strategies for ONJ have not been developed. There has been little information regarding the relationship between ONJ and dental implant treatment...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28902422/transplantation-of-noncultured-stromal-vascular-fraction-cells-of-adipose-tissue-ameliorates-osteonecrosis-of-the-jaw-like-lesions-in-mice
#16
Shinichiro Kuroshima, Muneteru Sasaki, Kazunori Nakajima, Saki Tamaki, Hiroki Hayano, Takashi Sawase
The precise pathoetiology and effective treatment strategies for bisphosphonate-related osteonecrosis of the jaw (BRONJ) remain unknown. Transplantation of noncultured stromal vascular fraction (SVF) cells has been shown to be a useful method for regenerative medicine in place of stem cell therapy. This study investigated the effects of noncultured SVF transplantation on tooth extraction socket healing in mice. Both chemotherapeutic/bisphosphonate combination therapy for 7 weeks and tooth extraction of maxillary first molars at 3 weeks after drug administration were performed using female C57BL/6J mice...
September 13, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28875143/a-case-of-bisphosphonate-related-osteonecrosis-of-the-jaw-with-a-particularly-unfavourable-course-a-case-report
#17
Massimo Viviano, Alessandra Addamo, Serena Cocca
Bisphosphonates are drugs used to treat osteoclast-mediated bone resorption, including osteoporosis, Paget disease, multiple myeloma, cancer-related osteolysis, and malignant hypercalcemia. The use of these drugs has increased in recent years as have their complications, especially bisphosphonate-related osteonecrosis of the jaw (BRONJ), which more frequently affects the mandible. Here we report a case of BRONJ with a particularly unfavorable course due to cervical inflammation that developed into necrotizing fasciitis, followed by multiorgan involvement leading to septic shock and death...
August 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28869827/effects-of-dexamethasone-and-nimesulide-on-bisphosphonate-related-osteonecrosis-of-the-jaw-an-experimental-study
#18
Camila Carvalho de Oliveira, Paulo Goberlânio de Barros Silva, Antonio Ernando Carlos Ferreira, Romélia Pinheiro Gonçalves, Fabrício Bitu de Sousa, Mário Rogério Lima Mota, Ana Paula Negreiros Nunes Alves
OBJECTIVE: To evaluate the effects of dexamethasone (DEX) and nimesulide (NIM) on Bisphosphonate-related Osteonecrosis of the Jaw (BRONJ) in rats. DESIGN: BRONJ was induced by zoledronic acid (ZA) infusion (0.2mg/kg) in Wistar rats (n=8), followed by extraction of the left lower first molar (BRONJ groups). Control groups (n=40) received saline (IV). For eight weeks, DEX (0.04, 0.4, 4mg/kg) or saline (SAL) were administered by gavage 24h before each infusion of ZA or saline (IV), or NIM (10...
August 30, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28809382/exposed-necrotic-bone-in-183-patients-with-bisphosphonate-related-osteonecrosis-of-the-jaw-associated-clinical-characteristics
#19
L Bagan, Y Jiménez, M Leopoldo, J Murillo-Cortes, J Bagan
BACKGROUND: The main objective of our study was to identify oral symptoms and signs most likely to be associated with the exposure of necrotic bone in bisphosphonate-related osteonecrosis of the jaw (BRONJ). MATERIAL AND METHODS: The study group consisted of 183 patients with BRONJ. We recorded data on the underlying disease, bisphosphonate used, location of osteonecrosis, symptoms, pain, fistula development, suppuration, infection, exposed necrotic bone, and BRONJ stage...
September 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28809381/serum-levels-of-rankl-and-opg-and-the-rankl-opg-ratio-in-bisphosphonate-related-osteonecrosis-of-the-jaw-are-they-useful-biomarkers-for-the-advanced-stages-of-osteonecrosis
#20
L Bagan, Y Jiménez, M Leopoldo, A Rubert, J Bagan
BACKGROUND: We determined whether serum levels of Receptor Activator for Nuclear Factor κ B Ligand (RANKL), Osteoprotegerin (OPG), and the RANKL/OPG ratio could be useful biomarkers for the severity of oral lesions in bisphosphonate-related osteonecrosis of the jaw (BRONJ). MATERIAL AND METHODS: A case-control study in which Group 1 consisted of 41 patients with BRONJ due to intravenous bisphosphonates, and Group 2 consisted of 44 healthy control cases. The plasma levels of RANKL and OPG were analyzed by an ELISA assay...
September 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
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