Searchable abstracts of presentations at key conferences on calcified tissues

ba0001pp55 | Bone biomechanics and quality | ECTS2013

In vivo microindentation for the assessment of bone material level properties

Ammann Patrick , Guerri Roberto , Hansma Paul , Nogues Xavier , Diez-Perez Adolfo

A micro-indentation technology potentially allows in vivo investigation of intrinsic bone tissue quality, a determinant of bone fragility. Thus the signification of the parameters investigated is still unclear.Since protein malnutrition affects bone material level properties – geometry and strength – rats were fed a normal or an isocaloric low-protein diet. Both femurs were collected and measurements of geometry using micro CT, materia...

ba0003oc2.4 | Osteoporosis epidemiology | ECTS2014

Are the high hip fracture rates among Norwegian women explained by impaired bone material properties?

Duarte-Sosa Daysi , Vilaplana Laila , Guerri Roberto , Nogues Xavier , Diez-Perez Adolfo , Eriksen Erik Fink

Hip+ fracture rate in Norway is the highest registered in World, and more than double that of Spanish women. Previous studies were unable to demonstrate significant differences between the two populations with respect to bone mass or calcium metabolism. In order to test, whether the difference in fracture propensity between both populations could be explained by differences in bone material quality we assessed bone material strength using microindentation in 41 Norwegian and 4...

ba0003pp21 | Bone biomechanics and quality | ECTS2014

Are the high hip fracture rates among norwegian women explained by impaired bone material properties?

Duarte-Sosa Daysi , Vilaplana Laila , Roberto Guerri , Nogues Xavier , Diez-Perez Adolfo , Eriksen Erik Fink

Hip fracture rate in Norway is the highest registered in World, and more than double that of Spanish women. Previous studies were unable to demonstrate significant differences between the two populations with respect to bone mass or calcium metabolism. In order to test, whether the difference in fracture propensity between both populations could be explained by differences in bone material quality we assessed bone material strength using microindentation in 41 Norwegian and 46...

ba0003pp289 | Osteoporosis: pathophysiology and epidemiology | ECTS2014

The impact of common comorbidities (as measured using the Charlson index) on hip fracture risk in elderly men: a population-based cohort study

Reyes Carlen , Nogues Xavier , Cooper Cyrus , Diez-Perez Adolfo , Prieto-Alhambra Daniel

Purpose: To determine whether and which co-morbidities (amongst those included in the Charlson co-morbidity index) confer an increased risk of hip fracture amongst elderly men.Methods: We conducted a population-based cohort study using a population database which contains primary care and hospital inpatient records of over >2 million people. All men aged ≥65 years registered on 1/1/2007 were followed up until 31/12/2009. Both exposure (co-morbi...

ba0001pp428 | Osteoporosis: treatment | ECTS2013

Persistence with different anti-osteoporosis medications: a population-based cohort study.

Pages-Castella Aina , Carbonell-Abella Cristina , Nogues Xavier , Javaid M Kassim , Arden Nigel K , Cooper Cirus , Diez-Perez Adolfo , Prieto-Alhambra Daniel

Objective: Several reports suggest very low persistence with oral bisphosphonates, but there is a scarcity of data on persistence with other anti-osteoporosis medications. We therefore compared rates of early discontinuation (in the first year of therapy) between all available outpatient anti-osteoporosis drugs in Catalonia, Spain.Study design: population-based retrospective cohort study.Participants and source of data: The data in...

ba0003pp124 | Cell biology: osteoblasts and bone formation | ECTS2014

MiR-320a and miR-483-5p are over-expressed in osteoblasts from osteoporotic fractured hips

Garcia-Giralt Natalia , De-Ugarte Laura , Balcells Susana , Arino-Ballester Sergi , Yoskovitz Guy , Guerri Roberto , Mellibovsky Leonardo , Urreizti Roser , Nogues Xavier , Grinberg Daniel , Diez-Perez Adolfo

MicroRNAs are important regulators of gene expression with documented role in bone metabolism and osteoporosis. Moreover, the use of miRNAs constitutes potential therapeutic targets. Our aim was to identify miRNAs differentially expressed in fractured compared to healthy bone. Additionally, we performed a miRNA profiling of primary osteoblasts to assess the origin of the differentially expressed miRNAs. Total RNA was extracted from fresh femoral neck trabecular bone from women...

ba0003pp192 | Genetics | ECTS2014

Genetic determinants of bone mineral density loss in aromatase inhibitors treatment in the B-ABLE Cohort

Rodriguez-Sanz Maria , Garcia-Giralt Natalia , Torres-del Pliego Elisa , Prieto-Alhambra Daniel , Servitja Sonia , Balcells Susana , Mellibovsky Leonardo , Grinberg Daniel , Tusquets Ignasi , Diez-Perez Adolfo , Nogues Xavier

Bone density (BMD) loss is a consequence of aromatase inhibitors (AI) treatment of breast cancer. B-ABLE cohort includes 391 postmenopausal women with early breast cancer starting AI therapy. Participants experienced a 1.98% (95% CI 1.54–2.42% P<0.0001) bone loss at lumbar spine (LS) and 1.24% (95% CI 0.81–1.67% P<0.0001) bone loss at femoral neck (FN) after 1 year on AI therapy and a 3.51% (95% CI 3.00–4.03% P<0.0001) bone...

ba0005ahp.oc1.3 | Abstract Presentations | ECTS2016

Treat-to-target in osteoporosis. Mith or reality? Results of a spanish Delphi study

Munoz-Torres Manuel , Casado Enrique , Jodar Esteban , Nogues Xavier , Nolla Joan Miquel , Quesada-Gomez Jose Manuel , Canals Laura , Balcells Monica , Lizan Luis

Objective: To define, by expert consensus, the criteria for the application of a Treat-to-Target (T2T) strategy in osteoporosis, in Spain, and to assess the adequacy of current treatments for it.Material and methods: Six Spanish experts in osteoporosis formed the Scientific Committee that led the project and designed the questionnaire used in two Delphi rounds. The 24 items included in the questionnaire assessed the experts’ wish (W) and prognosis (...

ba0005p239 | Genetics and Epigenetics | ECTS2016

Search for BMD-related variants of DKK1 and SOST by resequencing in the BARCOS cohort

Martinez-Gil Nuria , Roca-Ayats Neus , Urreizti Roser , Franco-Valls Hector , Garcia-Giralt Natalia , Mellibovsky Leonardo , Nogues Xavier , Diez-Perez Adolfo , Grinberg Daniel , Balcells Susana

In a meta-analysis by Estrada et al. (2012), 56 loci were found associated with BMD, 14 of which were also associated with osteoporotic fracture. Several of these genes belong to the Wnt signaling pathway, including two inhibitors: DKK1 and SOST.To better understand the role of these genes in BMD determination and fracture susceptibility, we aimed to explore their allelic architecture by resequencing all coding exons and flanking region...