Search results for "bisphosphonates."

showing 10 items of 66 documents

Systematic study of the physicochemical properties of a homologous series of aminobisphosphonates

2012

ABSTRACT: Aminobisphosphonates, e.g., alendronate and neridronate, are a well known class of molecules used as drugs for various bone diseases. Although these molecules have been available for decades, a detailed understanding of their most important physicochemical properties under comparable conditions is lacking. In this study, ten aminobisphosphonates, H2N(CH2)nC(OH)[P(O)(OH)2]2, in which n = 2-5, 7-11 and 15 have been synthesized. Their aqueous solubility as a function of temperature and pH, pKa-values, thermal stability, IR absorptions, and NMR spectral data for both liquid (1H, 13C, 31P-NMR) and solid state (13C, 15N and 31P-CPMAS NMR) were determined. Peer reviewed

Magnetic Resonance Spectroscopy116 Chemical sciencesSolid-statePharmaceutical Sciencephysicochemical properties010402 general chemistry01 natural sciencesArticleAnalytical Chemistrylcsh:QD241-441Homologous serieschemistry.chemical_compoundlcsh:Organic chemistryComputational chemistrybisphosphonates; aqueous solubility; pKa; physicochemical propertiesaqueous solubilityDrug DiscoveryAqueous solubilityMoleculeOrganic chemistrypKaThermal stabilityPhysical and Theoretical ChemistrySolubilitySpectral datata116bisphosphonatesAlendronateDiphosphonates010405 organic chemistryChemistryOrganic ChemistryTemperaturebisphosphonates aqueous solubility pKa physicochemical propertiesWaterNuclear magnetic resonance spectroscopyHydrogen-Ion Concentration0104 chemical sciences3. Good healthSolubilityChemistry (miscellaneous)Molecular Medicine
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Retrospective evaluation of persistence in osteoporosis therapy with oral bisphosphonates in Italy: the TOBI study

2019

The patients’ persistence with osteoporosis treatments is low. This retrospective, multicenter survey showed that almost 30% of osteoporotic patients discontinued the treatment within the first 6 months and that those taking drinkable bisphosphonates were less likely to interrupt the therapy; instead, the use of generic bisphosphonates was associated to a more precocious interruption. Purpose: Low persistence with osteoporosis medications is associated with higher fracture risk. This study aimed to assess the persistence to treatment with oral bisphosphonates among Italian osteoporotic patients under treatment for at least 6 months and to evaluate whether the different oral formulations of …

MaleAgingmedicine.medical_specialtyGeneric drugmedicine.medical_treatmentOsteoporosisDrinkable bisphosphonates; Generic drug; Oral bisphosphonates; Osteoporosis; PersistenceAdministration OralPersistence (computer science)Medication AdherencePersistence03 medical and health sciencesFractures Bone0302 clinical medicineInternal medicineGeneric drugmedicineHumansDrinkable bisphosphonatesGeneric drugOral bisphosphonatesOsteoporosisPersistence030212 general & internal medicineMedical prescriptionAdverse effectAgedRetrospective StudiesOral bisphosphonatesBone Density Conservation AgentsDiphosphonatesbusiness.industryOral bisphosphonatesSettore MED/34 - Medicina Fisica E RiabilitativaBisphosphonateMiddle Agedmedicine.diseaseDiscontinuationLogistic ModelsItalyCase-Control StudiesOsteoporosisFemaleGeriatrics and Gerontologybusiness030217 neurology & neurosurgeryOsteoporotic FracturesDrinkable bisphosphonates
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Up to a quarter of patients with osteonecrosis of the jaw associated with antiresorptive agents remain undiagnosed

2014

AbstractRecent data suggest that the traditional definition of bisphosphonate-associated osteonecrosis of the jaw (ONJ) may exclude patients who present with the non-exposed variant of the condition. To test the hypothesis that a proportion of patients with ONJ remain undiagnosed because their symptoms do not conform to the traditional case definition, we did a secondary analysis of data from MISSION (Multicentre study on phenotype, definition and classification of osteonecrosis of the jaws associated with bisphosphonates), a cross-sectional study of a large population of patients with bisphosphonate-associated ONJ who were recruited in 13 European centres. Patients with exposed and non-exp…

MaleDelayed DiagnosisSettore MED/50 - Scienze Tecniche Mediche ApplicateAntineoplastic AgentsOsteonecrosis; Jawbones; BisphosphonatesOsteonecrosis; Jawbones;BisphosphonatesSettore MED/29 - Chirurgia MaxillofaccialeSettore MED/28 - Malattie OdontostomatologicheOsteonecrosis; Jawbones; Bisphosphonates;JawbonesBisphosphonateHumansDiagnostic Errorsosteonecrosis; jawbones; bisphosphonatesPeriodontal DiseasesAgedPain MeasurementBone Density Conservation AgentsOsteonecrosisBisphosphonatesMiddle AgedCross-Sectional StudiesPhenotypeOtorhinolaryngologyTooth DiseasesTooth ExtractionOsteonecrosiOsteoporosisSurgeryBisphosphonate-Associated Osteonecrosis of the JawFemaleOral SurgeryJawbone
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Intravenous bisphosphonate-related osteonecrosis of the jaws: Influence of coadjuvant antineoplastic treatment and study of buccodental condition

2012

Objectives: To determine whether coadjuvant antineoplastic treatment can influence the number and size of bone exposures among patients with intravenous bisphosphonate-related osteonecrosis of the jaws (iBRONJ), and to analyze the buccodental condition of these patients. Material and methods: The study sample comprised 67 patients with iBRONJ, 53 patients without iBRONJ receiving treatment with intravenous bisphosphonates, and 36 healthy subjects. In all three groups, measurements were made of the CAO index and of resting whole saliva and stimulated whole saliva. In the patients with iBRONJ, the size (cm) and number of bone exposures were recorded. The data obtained were subjected to analys…

MaleMultivariate statisticsmedicine.medical_treatmentDentistryOdontologíaAntineoplastic AgentsLogistic regressionIntravenous bisphosphonatesmedicineHumansWhole salivaGeneral DentistryBisphosphonate-associated osteonecrosis of the jawOral Medicine and PathologyDiphosphonatesbusiness.industryHealthy subjectsBisphosphonateMiddle Agedmedicine.disease:CIENCIAS MÉDICAS [UNESCO]Ciencias de la saludOtorhinolaryngologyChemotherapy AdjuvantUNESCO::CIENCIAS MÉDICASInjections IntravenousSurgeryResearch-ArticleBisphosphonate-Associated Osteonecrosis of the JawFemaleAnalysis of variancebusinessMouth DiseasesMedicina Oral, Patología Oral y Cirugía Bucal
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Time to onset of bisphosphonate-related osteonecrosis of the jaws: a multicentre retrospective cohort study

2017

Objectives: Osteonecrosis of the jaw (ONJ) is a potentially severe adverse effect of bisphosphonates (BP). Although the risk of ONJ increases with increasing duration of BP treatment, there are currently no reliable estimates of the ONJ time to onset (TTO). The objective of this study was to estimate the TTO and associated risk factors in BP-treated patients. Subjects and Methods: Retrospective analysis of data from 22 secondary care centres in seven countries relevant to 349 patients who developed BP-related ONJ between 2004 and 2012. Results: The median (95%CI) TTO was 6.0 years in patients treated with alendronate (n = 88) and 2.2 years in those treated with zoledronate (n = 218). Multiv…

MalebisphosphonateTime Factorsmedicine.medical_treatmentOsteoporosis0302 clinical medicineRisk Factors80 and overosteoporosijaw osteonecrosiAged 80 and overBone Density Conservation AgentsDiphosphonatesjaw osteonecrosisjaw osteonecrosis bisphosphonates breast cancer multiple myeloma prostate cance osteoporosisIncidenceIncidence (epidemiology)Otorhinolaryngology2734 Pathology and Forensic MedicineMiddle Agedprostate cancermultiple myeloma030220 oncology & carcinogenesisBisphosphonate-Associated Osteonecrosis of the JawFemaleAdultmedicine.medical_specialty2734Drug Administration SchedulePathology and Forensic Medicine03 medical and health sciencesbreast cancerbisphosphonates; breast cancer; jaw osteonecrosis; multiple myeloma; osteoporosis; prostate cancer; Adult; Aged; Aged 80 and over; Bisphosphonate-Associated Osteonecrosis of the Jaw; Bone Density Conservation Agents; Cross-Sectional Studies; Diphosphonates; Drug Administration Schedule; Female; Humans; Incidence; Male; Middle Aged; Multivariate Analysis; Proportional Hazards Models; Retrospective Studies; Risk Factors; Time Factors; Otorhinolaryngology; 2734; Pathology and Forensic Medicine; Dentistry (all)Internal medicinemedicineHumansBisphosphonates; Breast cancer; Jaw osteonecrosis; Multiple myeloma; Osteoporosis; Prostate cancer; Otorhinolaryngology2734 Pathology and Forensic Medicine; Dentistry (all)prostate canceAdverse effectGeneral DentistrybisphosphonatesAgedProportional Hazards ModelsRetrospective StudiesBisphosphonate-associated osteonecrosis of the jawbusiness.industryProportional hazards modelRetrospective cohort study030206 dentistryBisphosphonatemedicine.diseaseosteoporosisSurgeryCross-Sectional StudiesOtorhinolaryngologyMultivariate AnalysisDentistry (all)businessOsteonecrosis of the jaw
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Physiology of the aging bone and mechanisms of action of bisphosphonates.

2011

Fragility fractures, a major public health concern, are expected to further increase due to aging of the world populations because age remains a cardinal, independent determinant of fracture risk. With aging the balance between bone formation and resorption during the remodeling process becomes negative, with increased resorption and reduced formation. Bisphosphonates (BPs) are widely prescribed anti-resorptive agents that inhibit osteoclasts attachment to bone matrix and enhance osteoclast apoptosis. BPs can be divided into nitrogen-containing (N-BPs) and non-nitrogen-containing BPs (non-N-BPs). Both classes induce apoptosis but they evoke it differently. Several studies have examined the …

Malemedicine.medical_specialtyAgingSettore MED/09 - Medicina Internamedicine.medical_treatmentOsteoporosisurologic and male genital diseasesBone resorptionBone and BonesBone remodelingOsteoclastInternal medicinemedicineHumansCellular SenescenceBONE BONE TURNOVER FRAGILITY FRACTURES AGING BISPHOSPHONATESOsteoblastsBone Density Conservation AgentsDiphosphonatesbusiness.industryBone metastasisOsteoblastBisphosphonatemedicine.diseaseEndocrinologymedicine.anatomical_structureOsteocyteFemaleBone RemodelingGeriatrics and GerontologybusinessGerontologyhormones hormone substitutes and hormone antagonistsBiogerontology
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Assessing the risk of osteonecrosis of the jaw due to bisphosphonate therapy in the secondary prevention of osteoporotic fractures

2012

There is evidence that the use oral bisphosphonates can lead to osteronecrosis of the jaws (ONJ). Although the occurrence of ONJ appears rare among oral bisphosphonates (BPs) users, it is important to know that it exists and can be opportunely minimized. INTRODUCTION: The purpose of this study is to evaluate the association between BPs prescribed for the secondary prevention of osteoporotic fractures and the occurrence of ONJ. METHODS: An Italian record linkage claims database with a target population of around 18 million individuals (6 million over 55 years of age) constituted the data source. We conducted a nested case-control study within a cohort of individuals aged 55+ years old, who w…

Malemedicine.medical_specialtyEndocrinology Diabetes and MetabolismONJDentistryOsteoporosis; fractures; biphosphonatesAdministration OralBisphosphonates Nested case–control study Osteonecrosis of the jaw Osteoporotic fracturesOSTEPOROSISRisk AssessmentAssociationADMINSTRATIVE DATABASESnested case-control studySettore MED/28 - Malattie OdontostomatologicheClaims dataMedicineHumansnested case-control study; osteoporotic fractures; osteonecrosis of the jaw; bisphosphonatesWomenbisphosphonatesAgedSecondary preventionAged 80 and overOral bisphosphonatesBone Density Conservation AgentsDiphosphonatesbusiness.industryMiddle Agedmedicine.diseaseOral BisphosphonateNecrosiosteonecrosis of the jawItalyClaims DataCase-Control StudiesOrthopedic surgeryBisphosphonates; Osteonecrosis of the jaw; Osteoporotic fractures; Nested case-control studyBisphosphonate-Associated Osteonecrosis of the JawFemaleSurgeryProfileBisphosphonate therapyMedical Record LinkagebusinessOsteonecrosis of the jawOsteoporotic Fractures
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Association between periodontal disease and prostate cancer: a systematic review and meta-analysis

2021

Background Periodontal disease is a chronic infectious disease caused by bacterial infection which may lead to various systematic diseases. Recently, increasing studies have explored the correlation of periodontal disease with the risk of prostate cancer. However, the findings were inconsistent. Hence, this study aims to investigate the association between periodontal disease and the risk of prostate cancer by a meta-analysis. Material and Methods PubMed, EMBASE, and Cochrane were searched for publications up to July 17, 2020. Cohort and case-control studies evaluating the risk of prostate cancer in patients with periodontal disease were included. A fixed or random-effect model was used to …

Malemedicine.medical_specialtyMEDLINEReviewCohort Studieszoledronic acid03 medical and health sciencesProstate cancer0302 clinical medicinePeriodontal diseaseRisk FactorsInternal medicineHumansMedicinePeriodontologyIn patientbisphosphonatesGeneral DentistryPeriodontal DiseasesUNESCO:CIENCIAS MÉDICASbusiness.industryProstatic Neoplasmsdenosumab030206 dentistrymedicine.diseaseConfidence intervalosteonecrosis of the jawOtorhinolaryngologyCase-Control StudiesMeta-analysisRelative riskCohortincidenceSurgerybusinessantiangiogenic drugMedicina Oral Patología Oral y Cirugia Bucal
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Oral bisphosphonate-related osteonecrosis of the jaws: Clinical characteristics of a series of 20 cases in Spain

2011

Objective: The objective of this study was to define the clinical characteristics of osteonecrosis of the jaws (ONJ) induced by oral bisphosphonates in a series of patients from a circumscribed area in northwest Spain. Study Design:A retrospective multicentre study was undertaken in 3 hospitals in an area with a radius less than 100 km in the Autonomous Community of Galicia (Spain). The medical records were reviewed and an oral examination was performed of patients diagnosed with oral bisphosphonate-related ONJ in the previous 3 years. Results: We detected 20 cases of ONJ (24 lesions) related to oral bisphosphonates (alendronate [16 patients] and ibandronate [4 patients]), which were mainly…

Malemedicine.medical_specialtyOsteoporosisCorticosteroid treatmentDiabetes mellitusmedicineHumansStage (cooking)Ibandronic AcidGeneral DentistryAgedRetrospective StudiesAged 80 and overSeries (stratigraphy)Oral Medicine and PathologyOral bisphosphonatesAlendronateBone Density Conservation AgentsDiphosphonatesbusiness.industryMedical recordMiddle Aged:CIENCIAS MÉDICAS [UNESCO]medicine.diseaseSurgeryOtorhinolaryngologySpainUNESCO::CIENCIAS MÉDICASOral examinationBisphosphonate-Associated Osteonecrosis of the JawFemaleResearch-ArticleSurgerybusinessMedicina Oral Patología Oral y Cirugia Bucal
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Osteonecrosis of the jaws by intravenous bisphosphonates and osteoradionecrosis : a comparative study

2009

Aims: We analyze the possible clinical differences between bone jaw exposed areas in ONJ (osteonecrosis of the jaws) and ORN (osteoradionecrosis). Patients and method: Group 1 was composed with 53 ONJ cases and group 2 with 20 ORN cases. In both groups we analyzed, the major size of the exposed bone areas, the number of exposed areas, the location on the jaws and the presence of others associated and severe complications, such as skin fistulas and jaw fractures. We also investigated the possible local aetiology or trigger factor of the lesions. Results: The major size of the bone exposed areas was 2.29±2.02(mean ± std.dev) in group 1 and 2.7±2.9 (mean ± std.dev) in group 2 (p>0.05). The num…

Malemedicine.medical_specialtyOsteoradionecrosismedicine.medical_treatmentDentistryIntravenous bisphosphonatesCerebrospinal fluid fistulamedicineHumansInfusions IntravenousGeneral DentistryDiphosphonatesTrigger factorbusiness.industryOsteonecrosismedicine.disease:CIENCIAS MÉDICAS [UNESCO]SurgeryOsteoradionecrosisOtorhinolaryngologyDental extractionJaw FractureUNESCO::CIENCIAS MÉDICASEtiologyFemaleSurgerybusinessJaw Diseases
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