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Bone densitometry

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https://www.readbyqxmd.com/read/27928628/calcium-41-a-technology-for-monitoring-changes-in-bone-mineral
#1
REVIEW
C M Weaver, B R Martin, G S Jackson, G P McCabe, M Peacock, M Wastney
The rare, long-lived radiotracer, (41)Ca, measured by accelerator mass spectrometry in the urine or serum following incorporation into the bone provides an ultra-sensitive tool to assess changes in bone calcium balance in response to an intervention. Changes in bone balance can be followed for years with one small dose that is both radiologically and biologically non-invasive. Sequential interventions can be compared, with greater precision than they can with biochemical markers of bone turnover and with greater power than with bone densitometry...
December 7, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27921146/bone-loss-at-the-distal-femur-and-proximal-tibia-in-persons-with-spinal-cord-injury-imaging-approaches-risk-of-fracture-and-potential-treatment-options
#2
REVIEW
C M Cirnigliaro, M J Myslinski, M F La Fountaine, S C Kirshblum, G F Forrest, W A Bauman
Persons with spinal cord injury (SCI) undergo immediate unloading of the skeleton and, as a result, have severe bone loss below the level of lesion associated with increased risk of long-bone fractures. The pattern of bone loss in individuals with SCI differs from other forms of secondary osteoporosis because the skeleton above the level of lesion remains unaffected, while marked bone loss occurs in the regions of neurological impairment. Striking demineralization of the trabecular epiphyses of the distal femur (supracondylar) and proximal tibia occurs, with the knee region being highly vulnerable to fracture because many accidents occur while sitting in a wheelchair, making the knee region the first point of contact to any applied force...
December 5, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27920814/low-energy-trauma-induced-intercondylar-femoral-fracture
#3
Mathias Aeby, Tobias Wyss, Birgit Mentrup, Erdmute Kunstmann, Franz Jakob, Daniel Aeberli
We present a 44-year-old female patient with recurrent fragility fractures including an intercondylar femoral fracture and with normal planar bone densitometry. Diagnosis of hypophosphatasia was suggested by low volumetric cortical bone mineral density and laboratory findings. DNA sequencing revealed heterozygous mutations in the exons 5, 6 and 9 of the ALPL gene, thus confirming the suspected diagnosis.
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27910707/standard-hormone-therapy-is-inadequate-for-bone-density-in-premature-ovarian-insufficiency
#4
Helena Giraldo, Cristina Benetti-Pinto, Valeska Ferreira, Heraldo Garmes, Daniela Yela, Paulo Giraldo
To assess standard dose hormone therapy (HT) and bone mass in premature ovarian insufficiency (POI), 239 women with POI, 132 using standard estrogen dose HT and 107 women without HT, were evaluated. All underwent bone mineral density (BMD) evaluation in the lumbar spine (LS) and total femur (TF). Mean age, age at last period and body mass index (BMI) for the untreated and for the HT groups were 38.1 ± 6.1 and 36.8 ± 7.3 years; 31.4 ± 7.3 and 30.7 ± 7.2 years; 26.6 ± 7.1 and 25.8 ± 4...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27881164/administration-of-anti-receptor-activator-of-nuclear-factor-kappa-b-ligand-rankl-antibody-for-the-treatment-of-osteoporosis-was-associated-with-amelioration-of-hepatitis-in-a-female-patient-with-growth-hormone-deficiency-a-case-report
#5
Ayumu Takeno, Masahiro Yamamoto, Masakazu Notsu, Toshitsugu Sugimoto
BACKGROUND: Growth hormone deficiency (GHD) is associated with non-alcoholic fatty liver disease (NAFLD). A recent animal study showed that hepatocyte-specific receptor activator of nuclear factor-kappa B (RANK) knockout mice had significantly lower liver fat content compared with control mice concomitant with a decrease in production of inflammatory cytokines such as tumor necrosis factor-α (TNF-α) from hepatocytes and kupffer cells. The role of anti-RANK ligand (RANKL) antibody for osteoporosis on hepatitis in patients with aGHD is still unknown...
November 24, 2016: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/27872411/osteoporosis-in-pediatric-liver-transplantation
#6
Walid Faraj, Ghina El Nounou, Abdallah Abou Al Naaj, Nancy Nakhoul, Ali Haydar, Mohammad Khalife
Liver transplantation provides an important, often life-saving treatment for end-stage liver disease. Osteoporosis post-liver transplantation has been described in adults; however, this has not been described in the pediatric population to date. We present a case of a 13-year-old female patient who underwent an orthotopic liver transplant for cryptogenic liver cirrhosis. Her immunosuppressants were tacrolimus and prednisone. Four months posttransplant, she started complaining of bilateral lower limb pain and limping while walking, progressing to a point where she was almost immobile...
December 2016: Progress in Transplantation
https://www.readbyqxmd.com/read/27870622/dual-energy-ct-for-the-musculoskeletal-system
#7
Paul I Mallinson, Tyler M Coupal, Patrick D McLaughlin, Savvas Nicolaou, Peter L Munk, Hugue A Ouellette
The principal advantages of dual-energy computed tomography (CT) over conventional CT in the musculoskeletal setting relate to the additional information provided regarding tissue composition, artifact reduction, and image optimization. This article discusses the manifestations of these in clinical practice-urate and bone marrow edema detection, metal artifact reduction, and tendon analysis, with potential in arthrography, bone densitometry, and metastases surveillance. The basic principles of dual-energy CT physics and scanner design will also be discussed...
December 2016: Radiology
https://www.readbyqxmd.com/read/27866217/osteonecrosis-of-the-jaw-onj-and-atypical-femoral-fracture-aff-in-an-osteoporotic-patient-chronically-treated-with-bisphosphonates
#8
A Sánchez, R Blanco
The aim of the study is to report the rare association of two complications of long-term treatment of osteoporosis with bisphosphonates in the same Caucasian elderly patient. A female patient of Italian descent, age 87 years, consulted in February 2013. She had a history of osteoporosis and had taken alendronate weekly for 7 years (1999-2006). Due to low back pain, an orthopedist had indicated i.v. zoledronic acid, 5 mg/year for 3 years (2006-2008). She received occasional supplements of ergocalciferol...
November 20, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27859736/relationship-between-a163g-osteoprotegerin-gene-polymorphism-and-other-osteoporosis-parameters-in-roma-and-non-roma-postmenopausal-women-in-eastern-slovakia
#9
Marta Mydlárová Blaščáková, Ľudmila Blaščáková, Janka Poráčová, Jozef Mydlár, Janka Vašková, Jarmila Bernasovská, Iveta Boroňová, Eva Petrejčíková, Ivan Bernasovský
BACKGROUND: The study was focused on evaluating the possible correlation between biochemical, anthropometric, and genetic indicators of osteoporosis in postmenopausal women. The frequency of genotypes and differences in measured parameters were evaluated within two ethnically different groups of women in Slovakia. METHODS: The study included 310 postmenopausal women divided into non-Roma and Roma groups. Based on results of densitometry, they were divided into control groups and women with osteoporosis and osteopenia...
November 15, 2016: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/27852598/frailty-and-bone-health-in-european-men
#10
Michael J Cook, Alexander Oldroyd, Stephen R Pye, Kate A Ward, Evelien Gielen, Rathi Ravindrarajah, Judith E Adams, David M Lee, Gyorgy Bartfai, Steven Boonen, Felipe Casanueva, Gianni Forti, Aleksander Giwercman, Thang S Han, Ilpo T Huhtaniemi, Krzysztof Kula, Michael E Lean, Neil Pendleton, Margus Punab, Dirk Vanderschueren, Frederick C Wu, Terence W O'Neill
BACKGROUND: frailty is associated with an increased risk of fragility fractures. Less is known, however, about the association between frailty and bone health. METHODS: men aged 40-79 years were recruited from population registers in eight European centres for participation in the European Male Aging Study. Subjects completed a comprehensive assessment which included quantitative ultrasound (QUS) scan of the heel (Hologic-SAHARA) and in two centres, dual-energy bone densitometry (dual-energy x-ray absorptiometry, DXA)...
November 16, 2016: Age and Ageing
https://www.readbyqxmd.com/read/27836529/twelve-years-of-experience-with-miglustat-in-the-treatment-of-type-1-gaucher-disease-the-spanish-zagal-project
#11
Pilar Giraldo, Marcio Andrade-Campos, Pilar Alfonso, Pilar Irun, Koldo Atutxa, Antonio Acedo, Abelardo Barez, Margarita Blanes, Vicente Diaz-Morant, Ma Angeles Fernández-Galán, Rafael Franco, Cristina Gil-Cortes, Vicente Giner, Angela Ibañez, Paz Latre, Ines Loyola, Elisa Luño, Roberto Hernández-Martin, Blanca Medrano-Engay, José Puerta, Inmaculada Roig, Javier de la Serna, Olga Salamero, Lucia Villalón, Miguel Pocovi
We report data from a prospective, observational study (ZAGAL) evaluating miglustat 100mg three times daily orally. in treatment-naïve patients and patients with type 1 Gaucher Disease (GD1) switched from previous enzyme replacement therapy (ERT). Clinical evolution, changes in organ size, blood counts, disease biomarkers, bone marrow infiltration (S-MRI), bone mineral density by broadband ultrasound densitometry (BMD), safety and tolerability annual reports were analysed. Between May 2004 and April 2016, 63 patients received miglustat therapy; 20 (32%) untreated and 43 (68%) switched...
October 24, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27814296/early-evidence-of-low-bone-density-and-decreased-serotonergic-synthesis-in-the-dorsal-raphe-of-a%C3%A2-tauopathy-model-of-alzheimer-s-disease
#12
Christine M Dengler-Crish, Matthew A Smith, Gina N Wilson
Reduced bone mineral density (BMD) and its clinical sequelae, osteoporosis, occur at a much greater rate the rate in patients with Alzheimer's disease (AD), often emerging early in the disease before significant cognitive decline is seen. Reduced BMD translates to increased bone fracture risk, decreased quality of life, and increased mortality for AD patients. However, the mechanism responsible for this observation is unclear. We hypothesize that bone loss is an additional component of an AD prodrome, changes that emerge prior to dementia and are mediated by dysfunction of the central serotonergic pathways...
November 3, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27810693/bone-health-and-adherence-to-vitamin-d-and-calcium-therapy-in-early-breast-cancer-patients-on-endocrine-therapy-with-aromatase-inhibitors
#13
Lidija Bošković, Maja Gašparić, Marija Petković, Damir Gugić, Ingrid Belac Lovasić, Željko Soldić, Branka Petrić Miše, Nina Dabelić, Ljubica Vazdar, Eduard Vrdoljak
OBJECTIVES: Randomized trials involving aromatase inhibitors (AIs) in the adjuvant treatment of breast cancer patients have reported increased osteoporosis risk. Bone loss can be reduced with appropriate life style, vitamin D and calcium supplements, and with bisphosphonate therapy. The aim of this analysis was to investigate adherence to vitamin D and calcium in postmenopausal breast cancer patients receiving adjuvant non-steroidal AIs, and oncologists' adherence to the bone health guidelines...
October 27, 2016: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/27799423/novel-association-between-bone-mineral-density-scores-and-the-prevalence-of-peripheral-artery-disease-in-both-sexes
#14
Melissa J Baldwin, Aleksandra Policha, Thomas Maldonado, Jade S Hiramoto, Stephen Honig, Michael S Conte, Jeffrey Berger, Caron B Rockman
The purpose of the current study was to investigate the association between bone mineral density (BMD) scores and the prevalence of peripheral artery disease (PAD) in a large cohort of subjects who underwent arterial Doppler assessments and calcaneal bone densitometry. The study was performed using data obtained from Life Line Screening Inc. Subjects were self-selected and paid for screening tests. The prevalence of PAD was significantly higher in men with osteopenia (4.5%) and osteoporosis (10.9%) compared to men with normal BMD (3...
October 30, 2016: Vascular Medicine
https://www.readbyqxmd.com/read/27797988/cross-sectional-and-longitudinal-study-protocols-of-the-adiposity-and-bone-metabolism-effects-of-exercise-induced-weight-loss-in-obese-adolescents-adibox-project
#15
Elodie Chaplais, Frédéric Dutheil, Geraldine Naughton, David Greene, Bruno Pereira, David Thivel, Daniel Courteix
INTRODUCTION: A need exists for sustainable and clinically effective weight management interventions, suitable for preventing well-linked chronic disease such as diabetes and cardiovascular disease and some less investigated secondary conditions such as bone alteration. The ADIposity and BOne metabolism: effects of eXercise-induced weight loss in obese adolescents (ADIBOX) protocol was designed to provide a better understanding of the interaction between adipokines and bone hormones in adolescents with obesity and how a 10-month physical activity programme may affect these interactions...
October 18, 2016: BMJ Open
https://www.readbyqxmd.com/read/27774508/prevalence-of-osteoporosis-and-its-risk-factors-in-men-with-copd-in-qazvin
#16
Mahnaz Abbasi, Mohammadali Zohal, Banafsheh Atapour, Zohreh Yazdi
Introduction. Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide. Proper diagnosis of osteoporosis as a systemic adverse effect of COPD is of significant importance. The present study aimed at evaluating the prevalence of osteoporosis and its risk factors in men suffering from COPD in Qazvin (2014). Methods. This descriptive-analytical study was conducted on 90 patients with COPD using random sampling. Anthropometric data and results from physical examination were collected...
2016: International Journal of Chronic Diseases
https://www.readbyqxmd.com/read/27765376/association-between-body-mass-index-and-osteoporosis-in-women-from-northwestern-rio-grande-do-sul
#17
Letícia Mazocco, Patrícia Chagas
OBJECTIVE: To investigate the association between body mass index (BMI) and bone mineral density (BMD) in postmenopausal women. METHODS: Observational study with postmenopausal women who underwent bone densitometry in Palmeira das Missões - RS. Sociodemographic data, risk for osteoporosis and food intake were assessed through a specific form. BMI was calculated according to WHO criteria. The assessment of BMD was performed by Dual-energy X-ray absorptiometry (DXA) and classified according to WHO...
September 30, 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27756092/parathyroid-hormone-polymorphism-rs6254-is-associated-with-the-development-and-severity-of-osteoporosis-in-asymptomatic-but-not-normocalcemic-hyperthyroidism
#18
G Díaz-Soto, E Romero, J L Pérez-Castrillón, O I Jauregui, D de Luis Román
Although normocalcemic and asymptomatic hyperparathyroidism (HPT) are becoming more common, they remain only partially understood. Parathyroid hormone (PTH) polymorphisms have been associated with disease severity in classical HPT. The aim of the present study was to evaluate the clinical effect of PTH polymorphism (rs6254) in normocalcemic and asymptomatic HPT. A prospective study of 61 consecutive patients with normocalcemic or asymptomatic HPT was carried out. Secondary causes of HPT were ruled out. All patients were followed for≥1 year...
December 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27748532/one-year-of-abaloparatide-a-selective-activator-of-the-pth1-receptor-increased-bone-formation-and-bone-mass-in-osteopenic-ovariectomized-rats-without-increasing-bone-resorption
#19
Aurore Varela, Luc Chouinard, Elisabeth Lesage, Susan Y Smith, Gary Hattersley
Abaloparatide is a novel 34-amino acid peptide selected to be a potent and selective activator of the parathyroid hormone receptor (PTH1R) signaling pathway with 41% homology to PTH(1-34) and 76% homology to PTHrP(1-34). A 12-month treatment study was conducted in osteopenic ovariectomized (OVX) rats to characterize the mechanisms by which abaloparatide increases bone mass. Sprague-Dawley (SD) rats were subjected to OVX or sham surgery at age 6 months and left untreated for 3 months to allow OVX-induced bone loss...
October 17, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27743070/african-americans-have-lower-tbs-than-whites-among-densitometry-patients-at-a-chicago-academic-center
#20
R K Jain, T J Vokes
: Trabecular bone score, an indirect measure of bone structure, may differ between ethnicities. We found that African Americans had lower trabecular bone score than do whites referred for densitometry, even when controlling for age and abdominal soft tissue thickness. PURPOSE: Trabecular bone score (TBS), an indirect measure of bone structure, has been shown to predict fractures in predominantly white populations. Analysis of NHANES data revealed lower TBS in African Americans than in whites...
October 14, 2016: Osteoporosis International
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