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1.
J Clin Oncol ; : JCO2302309, 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38954783

RESUMO

PURPOSE: Suppression of ovarian function and aromatase inhibition (AI) increases disease-free survival in premenopausal women with estrogen receptor (ER)-positive early-stage breast cancer but accelerates bone loss. We therefore hypothesized that suppressing bone remodeling using denosumab (DMAB) would prevent bone loss in these women. METHODS: In a 12-month double-blind randomized trial, 68 women with ER-positive early-stage breast cancer commencing ovarian function suppression and AI were randomly assigned to 60 mg DMAB (n = 34) or placebo (PBO; n = 34) once every 6 months (at 0 and 6 months). Volumetric bone mineral density (BMD), microarchitecture, and estimated bone strength of the distal tibia and distal radius were measured using high-resolution peripheral quantitative computed tomography, and spine and hip BMD were measured using dual-energy X-ray absorptiometry at 0, 6, and 12 months. The primary end point and treatment effect was the mean adjusted between group difference (MAD; [95% CI]) in distal tibial total volumetric BMD over 12 months, with a single P value tested over all time points. The study is registered with the Australian New Zealand Clinical Trials Registry (anzctr.org.au; identifier: ACTRN12616001051437). RESULTS: Intention-to-treat analysis included all 68 randomly assigned women. Over 12 months, compared with PBO, DMAB prevented the decrease in distal tibial total BMD (MAD, 20.8 mg HA/cm3 [95% CI, 17.3 to 24.2]), cortical BMD (42.9 mg HA/cm3 [95% CI, 32.1 to 53.9]), trabecular BMD (3.32 mg HA/cm3 [95% CI, 1.45 to 5.20], P = .004), estimated stiffness (11.6 kN/m [95% CI, 7.6 to 15.6]), and failure load (563 N [95% CI, 388 to 736]). Findings were similar at the distal radius. Decreases in BMD at the lumbar spine (MAD, 0.13 g/cm2 [95% CI, 0.11 to 0.15]), total hip (0.08 g/cm2 [95% CI, 0.07 to 0.09], and femoral neck (0.06 g/cm2 [95% CI, 0.05 to 0.07]) were also prevented. All P < .001 unless otherwise noted. CONCLUSION: Treatment with DMAB at commencement of estradiol suppression therapy preserves BMD, bone microarchitecture, and estimated strength, and is likely to increase fracture-free survival.

2.
J Periodontal Res ; 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38952262

RESUMO

AIMS: Oxidized low-density lipoprotein (oxLDL) is an important player in the course of metabolic inflammatory diseases. oxLDL was identified in the gingival crevicular fluid, denoting possible associations between oxLDL-induced inflammation and periodontal disease. The current investigation compared for the first-time direct effects of oxLDL to a cytokine cocktail of IL-1ß/TNF-ɑ/INF-γ on gingival mesenchymal stem cells' (G-MSCs) attributes. METHODS: Human third passage G-MSCs, isolated from connective tissue biopsies (n = 5) and characterized, were stimulated in three groups over 7 days: control group, cytokine group (IL-1ß[1 ng/mL], TNF-α[10 ng/mL], IFN-γ[100 ng/mL]), or oxLDL group (oxLDL [50 µg/mL]). Next Generation Sequencing and KEGG pathway enrichment analysis, stemness gene expression (NANOG/SOX2/OCT4A), cellular proliferation, colony-formation, multilinear potential, and altered intracellular pathways were investigated via histochemistry, next-generation sequencing, and RT-qPCR. RESULTS: G-MSCs exhibited all mesenchymal stem cells' characteristics. oxLDL group and cytokine group displayed no disparities in their stemness markers (p > .05). Next-generation-sequencing revealed altered expression of the TXNIP gene in response to oxLDL treatment compared with controls (p = .04). Following an initial boosting for up to 5 days by inflammatory stimuli, over 14 day, cellular counts [median count ×10-5 (Q25/Q75)] were utmost in control - [2.6607 (2.0804/4.5357)], followed by cytokine - [0.0433 (0.0026/1.4215)] and significantly lowered in the oxLDL group [0.0274 (0.0023/0.7290); p = .0047]. Osteogenic differentiation [median relative Ca2+ content(Q25/Q75)] was significantly lower in cytokine - [0.0066 (0.0052/0.0105)] compared to oxLDL - [0.0144 (0.0108/0.0216)] (p = .0133), with no differences notable for chondrogenic and adipogenic differentiation (p > .05). CONCLUSIONS: Within the current investigation's limitations, in contrast to cytokine-mediated inflammation, G-MSCs appear to be minimally responsive to oxLDL-mediated metabolic inflammation, with little negative effect on their differentiation attributes and significantly reduced cellular proliferation.

3.
Osteoporos Int ; 2024 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-38856732

RESUMO

This position paper of the International Osteoporosis Foundation reports the findings of an IOF Commission to consider to recommend rules of partnership with scientists belonging to a country which is currently responsible for an armed conflict, anywhere in the world. The findings and recommendations have been adopted unanimously by the Board of IOF.

4.
Osteoporos Int ; 35(7): 1243-1247, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38703219

RESUMO

PURPOSE: To study the prevalence of osteoporosis, falls and fractures in adults with ischaemic stroke. METHODS: Observational cohort study of adults aged ≥ 50 years admitted with ischaemic stroke over a 12-month period were invited to participate in a telephone interview one-year post-stroke to ascertain falls and fracture. A Fracture Risk After Ischaemic Stroke (FRAC-stroke) score was calculated. RESULTS: Of the 1267 patients admitted to the stroke unit between 1 January 2020 and 31 December 2020, 624 had a modified Rankin Score documented. Of these, 316 adults ≥ 50 years had ischaemic stroke and 131 consented to a telephone interview. Mean age was 72.4 ± 10.7 years and 36.6% were female. 34 patients (25.9%) had a FRAC-stroke score of ≥ 15, equating to ≥ 5% risk of fracture in the year following stroke. Eleven (8.4%) patients (6 female) had a minimal trauma fracture in the 12 months post-stroke. There was a significant difference in patients experiencing falls pre- and post-stroke (19.8% vs 31.3%, p = 0.04). FRAC-stroke score was higher in those who had a fracture post stroke compared those who did not (20.4 vs 8.9, p < 0.001). Receiver operating characteristic analysis found an area under the curve of 0.867 for FRAC-stroke score (95% CI 0.785-0.949, p < 0.005). The optimal cutoff value for FRAC-stroke score predicting fracture was 12 with a sensitivity of 90.9% and specificity of 70%. CONCLUSION: The FRAC-stroke score is a simple clinical tool that can be used to identify patients at high risk of fracture post-stroke who would most benefit from osteoporosis therapy. Stroke is a risk factor for fracture due to immobilisation, vitamin D deficiency and increased falls risk. This study found that a simple bedside tool, the FRAC-stroke score, can predict fracture after ischaemic stroke. This will allow clinicians to plan treatment of osteoporosis prior to discharge from a stroke unit.


Assuntos
Acidentes por Quedas , AVC Isquêmico , Osteoporose , Fraturas por Osteoporose , Humanos , Feminino , Masculino , Idoso , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/etiologia , Acidentes por Quedas/estatística & dados numéricos , Medição de Risco/métodos , Pessoa de Meia-Idade , AVC Isquêmico/epidemiologia , AVC Isquêmico/complicações , AVC Isquêmico/etiologia , Osteoporose/complicações , Osteoporose/epidemiologia , Idoso de 80 Anos ou mais , Estudos de Coortes , Prevalência , Fatores de Risco
5.
Bone ; 185: 117133, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38789095

RESUMO

Diabetes mellitus (DM) is associated with increased fracture risk in White adults. However, the impact of DM on fractures in Black adults is unknown. This systematic review and meta-analysis investigated the association between DM and fractures in adults of African ancestry. MEDLINE, Scopus, CINAHL and Embase databases were searched from their inception up to November 2023 for all studies in the English language investigating the epidemiology of fractures (prevalence, incidence, or risk) in Black men and women (age ≥ 18 years) with type 1 or type 2 DM. Effect sizes for prevalence of previous fractures (%) and incident fracture risk (hazard ratio [HR]) were calculated using a random-effects model on Stata (version 18.0). There were 13 eligible studies, of which 12 were conducted in Black adults from the United States, while one was conducted in adults of West African ancestry from Trinidad and Tobago. We found no fracture data in Black adults with DM living in Africa. Five studies were included in a meta-analysis of incident fracture risk, reporting data from 2926 Black and 6531 White adults with DM. There was increased risk of fractures in Black adults with DM compared to non-DM (HR = 1.65; 95 % confidence interval [CI]: 1.14, 2.39). The risk of fractures was also higher in White adults with DM compared to non-DM (HR = 1.31; 95 % CI: 1.06, 1.61) among these studies. Five studies were included in a meta-analysis of fracture prevalence, of which three also reported fracture prevalence in White adults. There were 175 previous fractures among 993 Black adults with DM and 384 previous fractures among 1467 White adults with DM, with a pooled prevalence of 17.5 % (95 % CI: 15.4, 19.6) and 25.8 % (95 % CI: 4.8, 46.8), respectively. Our results indicate a high burden of fractures in Black adults with DM.


Assuntos
População Negra , Fraturas Ósseas , Humanos , Fraturas Ósseas/epidemiologia , Fraturas Ósseas/etnologia , Adulto , Diabetes Mellitus/epidemiologia , Prevalência , Masculino , Feminino , Incidência , Fatores de Risco
6.
Osteoporos Sarcopenia ; 10(1): 3-10, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38690538

RESUMO

Objectives: This study aimed to present the Asia-Pacific consensus on long-term and sequential therapy for osteoporosis, offering evidence-based recommendations for the effective management of this chronic condition. The primary focus is on achieving optimal fracture prevention through a comprehensive, individualized approach. Methods: A panel of experts convened to develop consensus statements by synthesizing the current literature and leveraging clinical expertise. The review encompassed long-term anti-osteoporosis medication goals, first-line treatments for individuals at very high fracture risk, and the strategic integration of anabolic and antiresorptive agents in sequential therapy approaches. Results: The panelists reached a consensus on 12 statements. Key recommendations included advocating for anabolic agents as the first-line treatment for individuals at very high fracture risk and transitioning to antiresorptive agents following the completion of anabolic therapy. Anabolic therapy remains an option for individuals experiencing new fractures or persistent high fracture risk despite antiresorptive treatment. In cases of inadequate response, the consensus recommended considering a switch to more potent medications. The consensus also addressed the management of medication-related complications, proposing alternatives instead of discontinuation of treatment. Conclusions: This consensus provides a comprehensive, cost-effective strategy for fracture prevention with an emphasis on shared decision-making and the incorporation of country-specific case management systems, such as fracture liaison services. It serves as a valuable guide for healthcare professionals in the Asia-Pacific region, contributing to the ongoing evolution of osteoporosis management.

7.
Intern Med J ; 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38682385

RESUMO

BACKGROUND: Physician-scientists are important drivers of research, in both knowledge acquisition and research translation. In Australia, many newly qualified physicians and advanced physician trainees enrol in PhD studies, with a view to training as physician-scientists. However, data on perceived challenges and ways to support them are limited. METHODS: This single-centre study surveyed trainee physician-scientists undertaking PhD studies within the Monash University Department of Medicine in 2020. Following discussions with PhD students and a qualitative written questionnaire, trainee physician-scientists were invited to complete a quantitative survey that aimed to identify current and future career challenges and determine the type of enrichment and support mechanisms they value most and would most likely use. RESULTS: From 45 eligible participants, 25 responses were received (76% female). Participants identified multiple substantial challenges (median of 6) during their candidature relating to their project, changes in roles and their personal lives. They also envisaged future challenges post-PhD in establishing themselves as an independent investigator, further changes in their identity and their personal lives. Of potential support mechanisms during their candidature, a mentoring program was the most favoured, with an online discussion forum being the least popular. CONCLUSIONS: Trainee physician-scientists report multiple challenges during their PhD candidature and envisage significant challenges in establishing their research independence after PhD completion. They valued several potential support mechanisms, particularly a mentoring program. Australian universities and their associated academic health services should consider establishing programs to support trainee physician-scientists.

8.
Endocr Rev ; 2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38676447

RESUMO

The 6th International Conference, "Controversies in Vitamin D," was convened to discuss controversial topics, such as vitamin D metabolism, assessment, actions, and supplementation. Novel insights into vitamin D mechanisms of action suggest links with conditions that do not depend only on reduced solar exposure or diet intake and that can be detected with distinctive noncanonical vitamin D metabolites. Optimal 25-hydroxyvitamin D (25(OH)D) levels remain debated. Varying recommendations from different societies arise from evaluating different clinical or public health approaches. The lack of assay standardization also poses challenges in interpreting data from available studies, hindering rational data pooling and meta-analyses. Beyond the well-known skeletal features, interest in vitamin D's extraskeletal effects has led to clinical trials on cancer, cardiovascular risk, respiratory effects, autoimmune diseases, diabetes, and mortality. The initial negative results are likely due to enrollment of vitamin D-replete individuals. Subsequent post hoc analyses have suggested, nevertheless, potential benefits in reducing cancer incidence, autoimmune diseases, cardiovascular events, and diabetes. Oral administration of vitamin D is the preferred route. Parenteral administration is reserved for specific clinical situations. Cholecalciferol is favored due to safety and minimal monitoring requirements. Calcifediol may be used in certain conditions, while calcitriol should be limited to specific disorders in which the active metabolite is not readily produced in vivo. Further studies are needed to investigate vitamin D effects in relation to the different recommended 25(OH)D levels and the efficacy of the different supplementary formulations in achieving biochemical and clinical outcomes within the multifaced skeletal and extraskeletal potential effects of vitamin D.

9.
Artigo em Inglês | MEDLINE | ID: mdl-38426788

RESUMO

BACKGROUND: Aging increases fracture risk through bone loss and microarchitecture deterioration due to an age-related imbalance in bone resorption and formation during bone remodelling. We examined the associations between levels of phosphate, calcium, and alkaline phosphatase, and fracture risk in initially-healthy older individuals. METHODS: A post-hoc analysis of the Aspirin in Reducing Events in the Elderly (ASPREE) trial recruited 16,703 Australian participants aged ≥70 years and 2,411 US participants aged ≥65 years. Analyses were conducted on ASPREE-Fracture substudy participants from Australia with serum calcium, phosphate, and alkaline phosphatase measurement. Fracture data were collected post-randomization. Cox regression was used to calculate hazard ratios (HR) and 95% confidence intervals (CIs). Phosphate, calcium, and alkaline phosphatase were analysed in deciles (D1-D10), with deciles 4-7 (31-70%) as the reference category. Restricted cubic spline curves were used to identify nonlinear associations. RESULTS: Of the 9915 participants, 907 (9·2%) persons had incident fractures recorded over 3·9 (SD 1·4) years. In the fully adjusted model, males in the top decile (D10) of phosphate had 78% higher risk of incident fracture (HR 1·78, 95% CI 1·25-2·54). No such association was observed for females (HR 1·09, 95% CI 0·83-1·44). The population attributable fraction in men within the D10 phosphate category is 6·9%. CONCLUSION: This result confirms that, high-normal serum phosphate levels are associated with increased fracture risk in older men.

11.
Clin Nutr ESPEN ; 60: 109-115, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38479897

RESUMO

BACKGROUND & AIMS: Erectile dysfunction is common among older men and has been associated with low serum 25-hydroxy vitamin D concentration. However, this association may be due to uncontrolled confounding, and there is a paucity of evidence from interventional studies. We aimed to examine the effect of vitamin D supplementation on the prevalence of erectile dysfunction, in an exploratory analysis using data from a large randomized controlled trial. METHODS: The D-Health Trial recruited Australians aged 60-84 years between January 2014 and May 2015 and randomly assigned them to supplementation with 60,000 IU of vitamin D or placebo per month for up to 5 years. Blood samples were collected annually from randomly selected participants (total N = 3943). We assessed erectile dysfunction at the end of the third year of follow-up. We used log-binomial regression to examine the effect of vitamin D on the prevalence of erectile dysfunction overall, and within sub-groups. RESULTS: Of the 11,530 men enrolled, 8920 (77.4 %) completed the erectile dysfunction question and were included in the analysis. After three years of supplementation, the mean serum 25-hydroxy vitamin D concentration was 76 nmol/L (standard deviation (SD) 24.94) in the placebo group and 106 nmol/L (SD 26.76) in the vitamin D group (p < 0.0001). The prevalence of erectile dysfunction was 58.8 % and 59.0 % in the vitamin D and placebo groups, respectively (prevalence ratio 1.00, 95 % CI 0.97, 1.03); there was no evidence of an effect of vitamin D in any subgroup analyses. CONCLUSION: Supplementing older men with vitamin D is unlikely to prevent or improve erectile dysfunction. CLINICAL TRIALS REGISTRY: (ACTRN12613000743763).


Assuntos
População Australasiana , Disfunção Erétil , Idoso , Humanos , Masculino , Austrália/epidemiologia , Calcifediol , Suplementos Nutricionais , Disfunção Erétil/tratamento farmacológico , Disfunção Erétil/epidemiologia , Vitamina D , Vitaminas/uso terapêutico , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais
12.
Aust N Z J Public Health ; 48(1): 100117, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38350754

RESUMO

OBJECTIVE: To describe the development of a new position statement regarding balancing the risks and benefits of sun exposure for Australian adults. METHODS: We conducted a Sun Exposure Summit in March 2021, with presentations from invited experts and a workshop including representation from academic, clinical, policy, and patient stakeholder organisations. The group considered advice about balancing the risks and benefits of sun exposure for Australian adults and developed a revised consensus position statement. RESULTS: The balance of risks and benefits of sun exposure is not the same for everybody. For people at very high risk of skin cancer, the risks of exposure likely outweigh the benefits; sun protection is essential. Conversely, people with deeply pigmented skin are at low risk of skin cancer but at high risk of vitamin D deficiency; routine sun protection is not recommended. For those at intermediate risk of skin cancer, sun protection remains a priority, but individuals may obtain sufficient sun exposure to maintain adequate vitamin D status. CONCLUSIONS: The new position statement provides sun exposure advice that explicitly recognises the differing needs of Australia's diverse population. IMPLICATIONS FOR PUBLIC HEALTH: Mass communication campaigns should retain the focus on skin cancer prevention. The new position statement will support the delivery of personalised advice.


Assuntos
Neoplasias Cutâneas , Deficiência de Vitamina D , Adulto , Humanos , Luz Solar/efeitos adversos , Austrália , Vitamina D/uso terapêutico , Deficiência de Vitamina D/prevenção & controle , Deficiência de Vitamina D/tratamento farmacológico , Deficiência de Vitamina D/epidemiologia , Neoplasias Cutâneas/etiologia , Neoplasias Cutâneas/prevenção & controle , Medição de Risco
13.
Med J Aust ; 220(5): 243-248, 2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38409791

RESUMO

OBJECTIVES: To project how many minimal trauma fractures could be averted in Australia by expanding the number and changing the operational characteristics of fracture liaison services (FLS). STUDY DESIGN: System dynamics modelling. SETTING, PARTICIPANTS: People aged 50 years or more who present to hospitals with minimal trauma fractures, Australia, 2020-31. MAIN OUTCOME MEASURES: Numbers of all minimal trauma fractures and of hip fractures averted by increasing the FLS number (from 29 to 58 or 100), patient screening rate (from 30% to 60%), and capacity for accepting new patients (from 40 to 80 per service per month), and reducing the proportion of eligible patients who do not attend FLS (from 30% to 15%); cost per fracture averted. RESULTS: Our model projected a total of 2 441 320 minimal trauma fractures (258 680 hip fractures; 2 182 640 non-hip fractures) in people aged 50 years or older during 2020-31, including 1 211 646 second or later fractures. Increasing the FLS number to 100 averted a projected 5405 fractures (0.22%; $39 510 per fracture averted); doubling FLS capacity averted a projected 3674 fractures (0.15%; $35 835 per fracture averted). Our model projected that neither doubling the screening rate nor reducing by half the proportion of eligible patients who did not attend FLS alone would reduce the number of fractures. Increasing the FLS number to 100, the screening rate to 60%, and capacity to 80 new patients per service per month would together avert a projected 13 672 fractures (0.56%) at a cost of $42 828 per fracture averted. CONCLUSION: Our modelling indicates that increasing the number of hospital-based FLS and changing key operational characteristics would achieve only moderate reductions in the number of minimal trauma fractures among people aged 50 years or more, and the cost would be relatively high. Alternatives to specialist-led, hospital-based FLS should be explored.


Assuntos
Conservadores da Densidade Óssea , Fraturas do Quadril , Osteoporose , Fraturas por Osteoporose , Humanos , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/prevenção & controle , Austrália/epidemiologia , Prevenção Secundária
14.
J Pediatr Endocrinol Metab ; 37(3): 222-227, 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38374118

RESUMO

OBJECTIVES: To explore delayed puberty in cerebral palsy (CP) and to test the acceptability of an interventional puberty induction algorithm. METHODS: A two phase cohort study in children and adolescents diagnosed with CP who have delayed puberty. Phase 1: Retrospective review of clinical records and interviews with patients who have been treated with sex-steroids and Phase 2: Prospective interventional trial of pubertal induction with a proposed algorithm of transdermal testosterone (males) or oestrogen (females). Phase 1 examined experiences with sex-steroid treatment. Phase 2 collected data on height adjusted bone mineral density (BMAD), fractures, adverse effects, mobility and quality of life over two years during the induction. RESULTS: Phase 1, treatment was well tolerated in 11/20 treated with sex-steroids; phase 2, using the proposed induction algorithm, 7/10 treated reached Tanner stage 3 by nine months. One participant reached Tanner stage 5 in 24 months. Mean change in BMAD Z-scores was +0.27 % (SD 0.002) in those who could be scanned by dual-energy X-ray absorptiometry (DXA). CONCLUSIONS: Delayed puberty may be diagnosed late. Treatment was beneficial and well tolerated, suggesting all patients with severe pubertal delay or arrest should be considered for sex hormone supplementation.


Assuntos
Paralisia Cerebral , Puberdade Tardia , Adolescente , Criança , Feminino , Humanos , Masculino , Absorciometria de Fóton , Densidade Óssea , Estudos de Coortes , Hormônios Esteroides Gonadais , Projetos Piloto , Estudos Prospectivos , Puberdade , Qualidade de Vida , Testosterona
15.
Calcif Tissue Int ; 114(3): 201-209, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38015240

RESUMO

People with multiple sclerosis (MS) have a higher prevalence of osteoporosis, falls and fractures. Guidelines for MS populations targeting the management of osteoporosis, fracture and falls risk may help reduce the burden of musculoskeletal disease in this population. We aimed to systematically review current guidelines regarding osteoporosis prevention, screening, diagnosis and management in people with MS. In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines, a systematic review of scientific databases (MEDLINE, CINAHL, Embase and Scopus) was performed (n = 208). In addition, websites from MS organisations and societies were screened for clinical guidelines (n = 28). Following duplicate removal, screening and exclusions (n = 230), in total six guidelines were included in this review. Three of the identified guidelines were specific to managing osteoporosis in MS, while two linked vitamin D to bone health and one was focused on the effect of acute glucocorticoid use for MS exacerbations on bone health. All guidelines were found to contain inadequate recommendations for osteoporosis screening, management and treatment in people with MS given the evidence of higher prevalence of osteoporosis at an earlier age and compounding risk factors in this population. Early diagnosis and treatment of osteoporosis in people with MS is necessary as fractures lead to significant morbidity and mortality. Development of structured clinical guidelines directed at specific healthcare services will ensure screening, appropriate management, and care of bone health in people with MS.


Assuntos
Fraturas Ósseas , Esclerose Múltipla , Osteoporose , Humanos , Acidentes por Quedas/prevenção & controle , Densidade Óssea , Esclerose Múltipla/complicações , Esclerose Múltipla/epidemiologia , Esclerose Múltipla/terapia , Osteoporose/tratamento farmacológico , Fraturas Ósseas/epidemiologia , Fraturas Ósseas/etiologia , Fraturas Ósseas/prevenção & controle
16.
Eur J Endocrinol ; 190(2): 182-191, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38064575

RESUMO

BACKGROUND: Women with premature ovarian insufficiency (POI) lack oestrogen, which is a key determinant of bone growth, epiphyseal closure, and bone tissue organisation. Although dual-energy X-ray absorptiometry (DXA)-derived areal bone mineral density (BMD) remains the gold standard for fracture risk evaluation, it does not fully characterise the skeletal abnormalities present in these women. Hence, we aimed to assess hip/femur anatomy, strength, and geometry and femoral alignment using advanced hip analysis (AHA). METHODS: We conducted a cross-sectional, case-control study including 89 women with spontaneous normal karyotype POI (s-POI) or iatrogenic POI (i-POI), aged 20-50 years compared with 89 age- and body mass index (BMI)-matched population-based female controls. Hip anatomy, strength, geometrical parameters, and femur alignment were measured using hip DXA images and Lunar AHA software. Femoral orientation angle (FOA) was quantified as the overall orientation of the femur with respect to the axis of the forces transmitted from the upper body. RESULTS: The median age of POI diagnosis was 35 (18-40) years; the mean POI duration at the time of DXA was 2.07 (range 0-13) years, and 84% of POI women received oestrogen therapy. Areal BMD at all sites was significantly lower in the POI group (all P < .05). Indices of compressive and bending strength were lower in women with POI compared with controls, specifically the cross-sectional area (CSA, mm2) and section modulus (SM, mm3) (139.30 ± 29.08 vs 157.29 ± 22.26, P < .001 and 665.21 ± 129.54 vs 575.53 ± 150.88, P < .001, respectively). The FOA was smaller (124.99 ± 3.18) in women with POI as compared with controls (128.04 ± 3.80; P < .001) at baseline and after adjusting for height and femoral neck BMD. CONCLUSION: Alongside lower BMD at multiple sites, the femora of women with POI demonstrate reduced strength and a misalignment with forces transmitted from the upper body. Further research is needed to establish the role of these newly identified features and their role in fracture risk prediction in this population.


Assuntos
Fêmur , Fraturas Ósseas , Feminino , Humanos , Adulto , Estudos de Casos e Controles , Fêmur/diagnóstico por imagem , Fêmur/anatomia & histologia , Densidade Óssea , Absorciometria de Fóton/métodos , Estrogênios , Colo do Fêmur
17.
Intern Med J ; 54(6): 891-896, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38158711

RESUMO

BACKGROUND: International osteoporosis guidelines have recommended treatment approaches based on fracture risk stratification, in particular, anabolic therapy for patients with very high risk (VHR) of fragility fracture. AIM: To summarise Australian clinicians' perceptions of patients at VHR of fracture. METHODS: Australian clinicians invited to educational webinars on anabolic treatments for osteoporosis were surveyed in March and April 2021 about a typical patient they had most recently seen and identified as at VHR of fracture. RESULTS: Of the 268 clinician attendees who were invited to complete the post-webinar surveys, 67 (25%) responded and permitted the publication of aggregated data. A typical patient perceived to have a VHR of fracture was a woman in her 80's, living at home, who had been diagnosed with osteoporosis between 5 and 10 years ago, and received treatment for 1-5 years' duration, most commonly denosumab. The patient frequently had a T-score below -3.0 SD (standard deviation), multiple fragility fractures and most commonly suffered a vertebral fracture in the past 12 months, whereas on an adequate regimen of osteoporosis medication. There was a mismatch between the patient being eligible for anabolic therapy (64.2%) and actually having been prescribed an anabolic treatment in the past (20.9%). CONCLUSIONS: Australian clinicians' perceptions of patients with a VHR of fracture and the use of anabolic agents appear to be heavily influenced by local reimbursement criteria. The mismatch between patients deemed eligible for reimbursed anabolic therapy and those prescribed an anabolic agent suggests treatment inertia.


Assuntos
Conservadores da Densidade Óssea , Osteoporose , Fraturas por Osteoporose , Humanos , Austrália , Feminino , Fraturas por Osteoporose/prevenção & controle , Fraturas por Osteoporose/epidemiologia , Osteoporose/tratamento farmacológico , Conservadores da Densidade Óssea/uso terapêutico , Masculino , Medição de Risco , Idoso de 80 Anos ou mais , Inquéritos e Questionários , Atitude do Pessoal de Saúde , Pessoa de Meia-Idade , Denosumab/uso terapêutico , Idoso , Anabolizantes/uso terapêutico
18.
Eur J Gastroenterol Hepatol ; 36(1): 52-61, 2024 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-37942750

RESUMO

OBJECTIVES: Low skeletal muscle index (SMI) is common in inflammatory bowel disease (IBD) but has an uncertain relationship with active intestinal inflammation. This study evaluated body composition by whole-body dual-energy X-ray absorptiometry (DXA) in patients with IBD and healthy controls to enable the value of formal body composition analysis to be judged. METHODS: Patients with IBD and sex/age-matched controls prospectively underwent full body composition assessment by DXA, assessment by BMI, eating questionnaires and handgrip strength. Disease activity was assessed by faecal calprotectin (active ≥150 µg/g). A cohort undergoing biologic induction therapy were assessed at baseline and after ≥13 weeks. RESULTS: Total fat mass was higher in 54 patients with IBD (56% Crohn's disease, 61% male) than in 30 controls (median 25.1 vs. 18.7 kg, P  = 0.042). DXA offered little more than BMI. Low SMI was more common than in controls (15% vs. 0%, P  = 0.027). A normal BMI was seen in many patients with low SMI and handgrip strength was a poor marker of change in SMI. Body composition was similar in 28 patients with active vs. 22 with inactive disease. However, SMI increased specifically by 9.7% ( P  = 0.004) and BMI by 6.4% ( P  = 0.012) in 9 responders to therapy. CONCLUSION: DXA identifies many patients with reduced SMI who are not detected by standard methodologies. While disease activity is not associated with low SMI, resolution of inflammation leads to improved SMI. The potential for recognition of such patients to influence therapeutic decisions underlines the need for DXA assessment in clinical practice.


Assuntos
Força da Mão , Doenças Inflamatórias Intestinais , Humanos , Masculino , Feminino , Absorciometria de Fóton , Estudos Prospectivos , Índice de Massa Corporal , Composição Corporal , Doenças Inflamatórias Intestinais/diagnóstico por imagem , Músculo Esquelético , Inflamação
19.
J Manag Care Spec Pharm ; 29(12): 1331-1353, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38058136

RESUMO

BACKGROUND: People with multiple sclerosis (MS) are often prescribed medications associated with adverse effects on bone health. However, it is unclear whether these medications incur decreases in areal bone mineral density (aBMD) and higher fracture risk in this population. OBJECTIVE: To investigate the effects of commonly used medications on aBMD and fracture risk among people with MS. METHODS: MEDLINE, Embase, Scopus, CINAHL, and Web of Science were searched from their inception until February 5, 2023. We included randomized controlled trials as well as cross-sectional, retrospective, and prospective studies investigating whether glucocorticoids, immunomodulators, antidepressants, anticonvulsants, anxiolytics, opioids, or antipsychotics influenced aBMD or fracture risk in people with MS. Data were pooled using random effects meta-analyses to determine hazard ratios (HRs) and 95% CIs. RESULTS: We included 22 studies (n = 18,193). Six studies were included in the meta-analyses of glucocorticoid use and aBMD, whereas 2 studies were included in the medication use and fracture risk meta-analyses. No studies assessed the effect of antidepressants, anxiolytics, anticonvulsants, opioids, and antipsychotics on aBMD, and no studies assessed the effect of immunomodulators on fracture risk. Glucocorticoid use was significantly negatively associated with femoral neck aBMD (correlation = -0.21 [95% CI = -0.29 to -0.13]), but not with lumbar spine aBMD (correlation = -0.21 [95% CI = -0.50 to 0.12]). There were no differences in fracture risk between users of glucocorticoids (HR = 1.71 [95% CI = 0.04 to 76.47]), antidepressants (HR = 1.84 [95% CI = 0.09 to 38.49]), or anxiolytics (HR = 2.01 [95% CI = 0.06 to 64.22]), compared with nonusers. CONCLUSIONS: The available evidence is insufficient to support a relationship between greater fracture risk for people with MS taking glucocorticoid, antidepressant, or anxiolytic medication, compared with nonusers, and it is unclear whether these medications are associated with bone loss in people with MS, beyond that in the general population. Additional high-quality studies with homogenous methodology exploring how medications influence aBMD and fracture risk in people with MS are required.


Assuntos
Ansiolíticos , Fraturas Ósseas , Esclerose Múltipla , Humanos , Densidade Óssea , Estudos Prospectivos , Anticonvulsivantes/efeitos adversos , Estudos Retrospectivos , Estudos Transversais , Glucocorticoides/efeitos adversos , Esclerose Múltipla/tratamento farmacológico , Fraturas Ósseas/epidemiologia , Antidepressivos/efeitos adversos , Fatores Imunológicos
20.
Arch Osteoporos ; 18(1): 127, 2023 10 14.
Artigo em Inglês | MEDLINE | ID: mdl-37837494

RESUMO

This mixed methods study explores osteoporosis among adults living in a regional area of Victoria, Australia. Three major themes emerged from interviews, which reflected the findings of surveys, concerns regarding the adequacy of care in rural areas, a desire for tailored, local care, and a desire for hybrid telemedicine or in-person services. PURPOSE: Osteoporosis or osteopenia affects over half of adults aged over 50 years. People living outside major cities in Australia have higher hip fracture rates than people living in cities, along with reduced access to bone densitometry and osteoporosis specialists. This study explores osteoporosis risk factors, knowledge, experiences of and preferences for care in people living in a regional area, to inform development of osteoporosis care programs. METHODS: Adults living in a large non-metropolitan region of Australia were invited to participate in a mixed methods study: a survey (phase 1) followed by semi-structured interviews (phase 2) with triangulation of results. Data collected included osteoporosis diagnosis, risk factors, management, knowledge, preferences for care and experience using telemedicine. Surveys were analysed quantitatively, with linear and logistic regression used to assess factors related to osteoporosis knowledge or satisfaction with telemedicine. Interview transcripts were analysed using thematic analysis by two researchers, with in-depth discussion to identify themes. RESULTS: Sixty-two participants completed the survey, and 15 completed interviews. The mean (SD) age of survey participants was 62.2 (14.1) years, 57% had a screening test for osteoporosis, and 12 (19%) had a diagnosis of osteoporosis. The mean osteoporosis knowledge score was 8.4 / 19 and did not differ with age, education, or history of osteoporosis. The majority wanted access to more information about osteoporosis but preferred method differed, and the majority preferred in-person medical consultations to telemedicine. Interview participants were aged between 57 and 87 years, and included 8 with osteoporosis or osteopenia. Three major themes emerged: concerns regarding the adequacy of care in rural areas, a desire for tailored local car and a desire for hybrid telemedicine or in-person services. CONCLUSION: Gaps exist in rural osteoporosis care, including knowledge, screening and management. People have differing experiences of care, access to services and preferences for care. High-quality care, tailored to their needs, was preferred. Improving osteoporosis services for regional Australia will require a flexible, multi-faceted approach, addressing needs of the local community and providers.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Adulto , Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Densidade Óssea , Vitória/epidemiologia , Inquéritos e Questionários , Osteoporose/epidemiologia , População Rural
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