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Bisphosphonates

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https://www.readbyqxmd.com/read/28214400/association-between-bisphosphonate-therapy-and-outcomes-from-rehabilitation-in-older-people
#1
James A Goodbrand, Lloyd D Hughes, Lynda Cochrane, Peter T Donnan, Mark McGilchrist, Helen Frost, Marion E T McMurdo, Miles D Witham
BACKGROUND: Bisphosphonate therapy may have actions beyond bone, including effects on cardiovascular, immune and muscle function. We tested whether bisphosphonate treatment is associated with improved outcomes in older people undergoing inpatient rehabilitation. METHODS: Analysis of prospectively collected, linked routine clinical datasets. Participants were divided into never users of bisphosphonates, use prior to rehabilitation only, use after rehabilitation only, and current users (use before and after rehabilitation)...
February 11, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28213624/oligometastatic-colorectal-cancer-is-single-site-bony-colorectal-metastasis-a-treatable-condition
#2
Noel Cassar, Adrian Ben Cresswell, Brendan Moran
INTRODUCTION: A potentially resectable bony metastasis in the context of oligometastatic colorectal cancer is uncommon. Bony metastases are usually considered a late event with poor prognosis and generally associated with liver and/or lung metastases. INDEX CASE: A previously healthy 33-year-old gentleman, with no family history of colorectal cancer, presented with rectal bleeding and at colonoscopy had a biopsy-proven adenocarcinoma of the rectum, 7 cm from the anal verge...
February 17, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28212186/bisphosphonates-inhibit-pain-bone-loss-and-inflammation-in-a-rat-tibia-fracture-model-of-complex-regional-pain-syndrome-erratum
#3
(no author information available yet)
No abstract text is available yet for this article.
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28211502/bisphosphonates-enhance-antitumor-effect-of-egfr-tkis-in-patients-with-advanced-egfr-mutant-nsclc-and-bone-metastases
#4
Guowei Zhang, Ruirui Cheng, Zengli Zhang, Tao Jiang, Shengxiang Ren, Zhiyong Ma, Sha Zhao, Caicun Zhou, Jun Zhang
Whether bisphosphonates could enhance the effect of epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs) in non-small-cell lung cancer (NSCLC) patients with EGFR mutation and bone metastases (BM) remains unknown. EGFR mutation status were collected from 1560 patients with NSCLC and BM. 356 NSCLC patients with EGFR mutation and BM were identified. Among them, 91 patients received EGFR-TKIs alone and 105 patients received EGFR-TKIs plus bisphosphonates as first-line therapy. Comparing to TKIs alone, EGFR-TKIs plus bisphosphonates had a statistically significant longer progression-free survival (PFS: 11...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210623/in-vitro-and-in-vivo-evaluation-of-commercially-available-fibrin-gel-as-a-carrier-of-alendronate-for-bone-tissue-engineering
#5
Beom Su Kim, Feride Shkembi, Jun Lee
Alendronate (ALN) is a bisphosphonate drug that is widely used for the treatment of osteoporosis. Furthermore, local delivery of ALN has the potential to improve the bone regeneration. This study was designed to investigate an ALN-containing fibrin (fibrin/ALN) gel and evaluate the effect of this gel on both in vitro cellular behavior using human mesenchymal stem cells (hMSCs) and in vivo bone regenerative capacity. Fibrin hydrogels were fabricated using various ALN concentrations (10(-7)-10(-4 )M) with fibrin glue and the morphology, mechanical properties, and ALN release kinetics were characterized...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28210558/bisphosphonate-related-osteonecrosis-of-jaws-in-advanced-stage-breast-cancer-was-detected-from-bone-scan-a-case-report
#6
Prakasit Chirappapha, Saowanee Kitudomrat, Thanaporn Thongjood, Rangsima Aroonroch
Bisphosphonates (BPs) are indicated to treat skeletal-related events (SREs) for cancer patients with bone metastasis. We report a 79-year-old woman with advanced stage breast cancer with bone metastasis who was prescribed BPs (zoledronate), then developed osteonecrosis of jaw. We provide a brief review of the pathogenesis, diagnosis and treatment of this complication.
February 2017: Gland Surgery
https://www.readbyqxmd.com/read/28210453/surgical-treatment-vs-conservative-treatment-in-intravenous-bisphosphonate-related-osteonecrosis-of-the-jaws-systematic-review
#7
REVIEW
Aida Comas-Calonge, Rui Figueiredo, Cosme Gay-Escoda
AIMS: To determine the success rates of the surgical and non-surgical treatments in the management of bisphosphonate-related osteonecrosis of the jaws (BRONJ). MATERIAL AND METHODS: A systematic review of the literature was made. A PubMed Medline database search was performed in order to include clinical studies published in English,between2004 and 2014 with the following key-words: "BRONJ AND treatment" and "NOT osteoporosis". The following data was gathered: authors, title, year of publication, aim of study, level of evidence, sample size, treatment performed, treatment outcomes and follow-up...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28208725/reaction-of-3-amino-1-2-4-triazole-with-diethyl-phosphite-and-triethyl-orthoformate-acid-base-properties-and-antiosteoporotic-activities-of-the-products
#8
Patrycja Miszczyk, Dorota Wieczorek, Joanna Gałęzowska, Błażej Dziuk, Joanna Wietrzyk, Ewa Chmielewska
The reaction of diethyl phosphite with triethyl orthoformate and a primary amine followed by hydrolysis is presented, and the reaction was suitable for the preparation of (aminomethylene)bisphosphonates. 3-Amino-1,2,4-triazole was chosen as an interesting substrate for this reaction because it possesses multiple groups that can serve as the amino component in the reaction-namely, the side-chain and triazole amines. This substrate readily forms 1,2,4-triazolyl-3-yl-aminomethylenebisphosphonic acid (compound 1) as a major product, along with N-ethylated bisphosphonates as side products...
February 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28208018/pharmacophore-mapping-of-thienopyrimidine-based-monophosphonate-thp-mp-inhibitors-of-the-human-farnesyl-pyrophosphate-synthase
#9
Jaeok Park, Chun Yuen Leung, Alexios N Matralis, Cyrus M Lacbay, Michail Tsakos, Guillermo Fernandez De Troconiz, Albert M Berghuis, Youla S Tsantrizos
The human farnesyl pyrophosphate synthase (hFPPS), a key regulatory enzyme in the mevalonate pathway, catalyzes the biosynthesis of the C-15 isoprenoid farnesyl pyrophosphate (FPP). FPP plays a crucial role in the post-translational prenylation of small GTPases that perform a plethora of cellular functions. Although hFPPS is a well-established therapeutic target for lytic bone diseases, the currently available bisphosphonate drugs exhibit poor cellular uptake and distribution into non-skeletal tissues. Recent drug discovery efforts have focused primarily on allosteric inhibition of hFPPS and the discovery of non-bisphosphonate drugs for potentially treating non-skeletal diseases...
February 16, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28207199/bisphosphonate-functionalized-imaging-agents-anti-tumor-agents-and-nanocarriers-for-treatment-of-bone-cancer
#10
REVIEW
Robin A Nadar, Nicola Margiotta, Michele Iafisco, Jeroen J J P van den Beucken, Otto C Boerman, Sander C G Leeuwenburgh
Bone metastases result from the invasion of primary tumors to bone. Current treatment modalities include local treatments such as surgery and radiotherapy, while systemic treatments include chemotherapy and (palliative) treatment of skeletal metastases. Nevertheless, once bone metastases have been established they remain incurable leading to morbidity and mortality. Bisphosphonates are a well-established class of drugs, which are increasingly applied in the treatment of bone cancers owing to their effective inhibition of tumor cells and suppression of bone metastases...
February 16, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28203048/atypical-femoral-shaft-fractures-secondary-to-long-term-bisphosphonate-therapy
#11
Cemil Kayali, Taskin Altay, Firat Ozan, Serkan Sozkesen, Kamil Yamak
BACKGROUND: Bisphosphonates (BPs) are one of the most commonly used agents in the treatment of post-menopausal osteoporosis and other metabolic bone diseases. METHODS: Between 2010 and 2015, data of 22 osteoporotic women with femoral fractures due to low-energy trauma who received BPs previously were analysed. RESULTS: The mean duration of BP therapy was 7.6 years. The mean duration of union was 7.4 months. Five patients had non-union. Stress reaction was observed in the contralateral femur in 11 patients...
June 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28201994/risedronate-therapy-in-patients-with-mild-to-moderate-chronic-kidney-disease-with-osteoporosis-post-hoc-analysis-of-data-from-the-risedronate-phase-iii-clinical-trials
#12
Takashi Shigematsu, Ryoichi Muraoka, Toshitsugu Sugimoto, Yoshiki Nishizawa
BACKGROUND: The clinical effect of bisphosphonate treatment has not been clearly evaluated by kidney function in Japanese Chronic Kidney Disease (CKD) patients with osteoporosis. This study analyzed the data from three risedronate Japanese phase III trials. The clinical effect of risedronate therapy was evaluated in CKD patients with osteoporosis. METHODS: The Japanese clinical trials involved 852 subjects who received risedronate (2.5 mg once daily or 17.5 mg once weekly) and whose estimated glomerular filtration rate (eGFR) were calculable and at ≥ 30 mL/min...
February 15, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28199140/role-of-bone-marrow-stromal-cells-in-impaired-bone-repair-from-bronj-osseous-lesions
#13
L H He, E Xiao, J G An, Y He, S Chen, L Zhao, T Zhang, Y Zhang
Treatment of bisphosphonate-related osteonecrosis of the jaw (BRONJ) has posed significant challenges to maxillofacial surgeons because of the poor repair of BRONJ bone defects. Moreover, the pathological mechanisms remain unclear. Bone marrow stromal cells (BMSCs) play key roles during bone repair and bone regeneration. However, the activities of BMSCs derived from BRONJ lesions and the BRONJ lesion boundary, as well as the roles of BMSCs in BRONJ defect repair, are poorly defined. In this study, we found that BMSCs from the central area of the osteonecrotic BRONJ region (center-BRONJ BMSCs) and the peripheral area at the recommended debridement boundary (peri-BRONJ BMSCs) had decreased proliferative ability, self-renewal capacity, and multidifferentiation capacities compared with control BMSCs...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28199089/technetium-i-complexes-of-bathophenanthrolinedisulfonic-acid
#14
Abdolreza Yazdani, Nancy Janzen, Shannon Czorny, John F Valliant
Bathophenanthrolinedisulfonate (BPS) complexes of technetium(I) of the type [Tc(CO)3(BPS)(L)](n) (L = imidazole derivatives) were synthesized and evaluated both in vitro and in vivo. [(99m)Tc(CO)3(BPS)(MeIm)](-) (MeIm = 1-methyl-1H-imidazole) was prepared in near-quantitative yield using a convenient two-step, one-pot labeling procedure. A targeted analogue capable of binding regions of calcium turnover associated with bone metabolism was also prepared. Here, a bisphosphonate was linked to the metal through an imidazole ligand to give [(99m)Tc(CO)3(BPS)(ImAln)](2-) (ImAln = an imidazole-alendronate ligand) in high yield...
February 15, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28190585/association-between-systemic-diseases-and-endodontic-outcome-a-systematic-review
#15
REVIEW
Anita Aminoshariae, James C Kulild, Andre Mickel, Ashraf F Fouad
INTRODUCTION: To date, the relationships between systemic diseases and endodontic treatment outcomes remain poorly studied. Thus, the purpose of this systematic review was to evaluate the relationship between host-modifying factors and their association with endodontic outcomes. METHODS: Two reviewers independently conducted a comprehensive literature search. The MEDLINE, Embase, Cochrane, and PubMed databases were searched. In addition, the bibliographies and gray literature of all relevant articles and textbooks were manually searched...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28188075/bisphosphonate-related-osteonecrosis-and-metastasis-within-the-same-site-of-the-jaw
#16
Alessandro Corsi, Claudio Ungari, Mara Riminucci, Alessandro Agrillo
Bisphosphonates (BPs) bind selectively to hydroxyapatite and accumulate in sites of active bone remodeling, where they inhibit bone turnover by interfering with osteoclastic recruitment, activity, and survival. For this reason, they are used in oncologic patients to prevent, decrease, and delay potentially life-threatening skeletal-related complications associated with multiple myeloma (MM) and metastasis, including hypercalcemia, pain, and pathologic fractures. Despite substantial benefits, treatment with BPs can be associated with the development of osteonecrosis of the jaw (ONJ), a pathologic condition for which pathophysiologic mechanisms are not completely defined and current criteria for prevention, diagnosis, and management are based largely on expert recommendations and guidelines...
January 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28186845/image-findings-of-bisphosphonate-related-osteonecrosis-of-jaws-comparing-with-osteoradionecrosis
#17
Kenichi Obinata, Shinichi Shirai, Hitoshi Ito, Motoyasu Nakamura, Marco Carrozzo, Iain Macleod, Andrew Carr, Yutaka Yamazaki, Kanchu Tei
OBJECTIVES: The aim of this study was to evaluate image characteristics of bisphosphonate related osteonecrosis of the jaws (BRONJ) and compare these with osteoradionecrosis (ORN). METHODS: Thirty-four patients with BRONJ and 16 patients with ORN were included in this study. We investigated the computed tomography (CT) and Dental Panoramic Radiograph (DPR) images for osteolysis, osteosclerosis, sequesteration, periosteal reaction, pathological fracture, and spread of soft tissue inflammation around the jaws...
February 10, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28186356/bone-robusticity-in-two-distinct-skeletal-dysplasias-diverges-from-established-patterns
#18
Kate Citron, Cosmo Veneziale, Josephine Marino, Erin M Carter, Karl J Jepsen, Cathleen Raggio
Achondroplasia is a heritable disorder of endochondral bone formation characterized by disproportionate short stature. Osteogenesis imperfecta is a heritable bone and connective tissue disorder characterized by bone fragility. To investigate bone morphology of these groups, we retrospectively reviewed 169 de-identified bone age films from 20 individuals with achondroplasia, 39 individuals with osteogenesis imperfecta and 37 age- and sex-matched controls (matched to historical measurements from the Bolton-Brush Collection)...
February 10, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28181705/pyrrolidine-containing-bisphosphonates-as-potential-anti-resorption-bone-drugs
#19
Lorena De Luca, Andrea Chiminazzo, Laura Sperni, Giorgio Strukul, Alessandro Scarso
Bisphosphonates, particularly those with N-substituted groups, are currently the most popular drugs for the treatment of osteoporosis. However, their chemical structures are still rather simple and new synthetic methods are needed to expand their molecular complexity and also improve their specificity of action towards other targets as anticancer, antibacterial, and antimalarial drugs. Herein, we report a new class of potential antiresorption bisphosphonate drugs that have a pyrrolidine unit with different substituents, obtained through a simple dipolar cycloaddition reaction between azomethine ylides and vinylidenebisphosphonate derivatives as precursors...
January 11, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28179107/pro-inflammatory-immune-to-brain-signaling-is-involved-in-neuroendocrine-responses-to-acute-emotional-stress
#20
Jordi Serrats, Jan-Sebastian Grigoleit, Elena Alvarez-Salas, Paul E Sawchenko
Activation of the hypothalamo-pituitary-adrenal (HPA) axis by inflammatory stressors (e.g., bacterial lipopolysaccharide) is thought to involve vascular transduction of circulating cytokines, with perivascular macrophages (PVMs) along with endothelia, effecting activation of HPA control circuitry via inducible (cyclooxygenase-2- or COX-2- dependent) prostaglandin synthesis. To test the stressor-specificity of this mechanism, we examined whether ablation of PVMs or pharmacologic blockade of COX activity affected HPA responses to a representative emotional stressor, restraint...
February 4, 2017: Brain, Behavior, and Immunity
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