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https://www.readbyqxmd.com/read/29224172/evaluation-of-clinical-risk-factors-for-osteoporosis-and-applicability-of-the-frax-tool-in-joinville-city-southern-brazil
#1
Dalisbor Marcelo Weber Silva, Victoria Zeghbi Cochenski Borba, John A Kanis
Clinical risk factors for fracture in Southern Brazil are similar to those used in Fracture Risk Assessment Tool (FRAX®). Age-dependent intervention thresholds had higher accuracy than a fixed cut-off point. INTRODUCTION: Access to bone mineral density testing is wanted for a large part of the Brazilian population. The FRAX® has an option to calculate the risk of fracture without this costly evaluation but relies on the clinical risk factors (CRFs) identified in the source cohorts used to generate FRAX...
December 9, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/29224108/negative-impact-of-testosterone-deficiency-and-5%C3%AE-reductase-inhibitors-therapy-on-metabolic-and-sexual-function-in-men
#2
Abdulmaged M Traish
Androgens are steroid hormones with pleotropic and diverse biochemical and physiological functions, and androgen deficiency exerts a negative impact on human health. Testosterone (T) either directly or via its transformation into the more potent metabolite 5α-dihydrotestosterone (5α-DHT) or via aromatization into estradiol (E2) modulates important biochemical signaling pathways of human physiology and plays a critical role in the growth and/or maintenance of functions in a host of tissues and organs. T and 5α-DHT play an important role in regulating physiology of the muscle, adipose tissue, liver, bone, and central nervous system, as well as reproductive and sexual functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29222266/impact-of-bone-disease-and-pain-in-thalassemia
#3
REVIEW
Antonio Piga
Conventional treatment of thalassemia, namely regular blood transfusion and iron chelation, improves perspectives and quality of life; however, successful treatment leads to more time in which long-term complications such as bone disease can develop. Thalassemia bone disease (TBD) is unique: all aspects, from bone anatomy and bone quality to mineral density, may be affected, with important morbidity including osteoporosis, fractures, spinal deformities, nerve compression, and pain. Clinical presentations include growth impairment, rickets-like features, back pain, spinal deformities, any sign of nerve compression, severe osteoporosis, and fragility fractures...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29218382/restrictive-pulmonary-dysfunction-is-associated-with-vertebral-fractures-and-bone-loss-in-elderly-postmenopausal-women
#4
R Watanabe, M Shiraki, M Saito, R Okazaki, D Inoue
Association between lung function and bone metabolism remains controversial. We found that impaired lung function was associated with vertebral fractures and bone loss in Japanese postmenopausal women. While vertebral deformities would impair lung function, respiratory dysfunction might in turn increase fracture risk, suggesting a complex bidirectional interaction. INTRODUCTION: Association between bone metabolism and pulmonary function in the general population is controversial. The aim of this study was to investigate relationship between lung and bone parameters in elderly postmenopausal women...
December 7, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29216909/which-measuring-site-in-ankylosing-spondylitis-is-best-to-detect-bone-loss-and-what-predicts-the-decline-results-from-a-5-year-prospective-study
#5
Anna Deminger, Eva Klingberg, Mattias Lorentzon, Mats Geijer, Jan Göthlin, Martin Hedberg, Eva Rehnberg, Hans Carlsten, Lennart T Jacobsson, Helena Forsblad-d'Elia
BACKGROUND: Studies have shown increased prevalence of osteoporosis and increased risk for vertebral fractures in patients with ankylosing spondylitis (AS). Measurements of bone mineral density (BMD) in the lumbar spine anterior-posterior (AP) projection may be difficult to interpret due to the ligamentous calcifications, and the lateral projection might be a better measuring site. Our objectives were to investigate BMD changes after 5 years at different measuring sites in patients with AS and to evaluate disease-related variables and medications as predictors for BMD changes...
December 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29216254/international-classification-of-diseases-icd-coded-obesity-predicts-risk-of-incident-osteoporotic-fracture
#6
Shuman Yang, Lisa M Lix, Lin Yan, Aynslie M Hinds, William D Leslie
International Classification of Diseases (ICD) codes have been used to ascertain individuals who are obese. There has been limited research about the predictive value of ICD-coded obesity for major chronic conditions at the population level. We tested the utility of ICD-coded obesity versus measured obesity for predicting incident major osteoporotic fracture (MOF), after adjusting for covariates (i.e., age and sex). In this historical cohort study (2001-2015), we selected 61,854 individuals aged 50 years and older from the Manitoba Bone Mineral Density Database, Canada...
2017: PloS One
https://www.readbyqxmd.com/read/29214508/bone-histomorphometry-in-acromegaly-patients-with-fragility-vertebral-fractures
#7
L Dalle Carbonare, V Micheletti, E Cosaro, M T Valenti, M Mottes, G Francia, M V Davì
CONTEXT: The high risk of vertebral fractures (VFs) in acromegaly patients despite normal bone mineral density (BMD) is well known. The reasons for this paradoxical finding of skeleton fragility are poorly understood due to the limited data on bone histomorphometry in acromegaly. OBJECTIVE: This study aimed to analyze histomorphometric parameters including bone microarchitecture in acromegaly patients with VFs and normal BMD compared to normal subjects, and also to evaluate the differences between active and controlled acromegaly patients...
December 6, 2017: Pituitary
https://www.readbyqxmd.com/read/29214023/assessment-and-clinical-management-of-bone-disease-in-adults-with-eating-disorders-a-review
#8
REVIEW
Anne Drabkin, Micol S Rothman, Elizabeth Wassenaar, Margherita Mascolo, Philip S Mehler
Aim: To review current medical literature regarding the causes and clinical management options for low bone mineral density (BMD) in adult patients with eating disorders. Background: Low bone mineral density is a common complication of eating disorders with potentially lifelong debilitating consequences. Definitive, rigorous guidelines for screening, prevention and management are lacking. This article intends to provide a review of the literature to date and current options for prevention and treatment...
2017: Journal of Eating Disorders
https://www.readbyqxmd.com/read/29207479/growth-and-bone-mineralization-of-very-preterm-infants-at-term-corrected-age-in-relation-to-different-nutritional-intakes-in-the-early-postnatal-period
#9
Michelle N Körnmann, Viola Christmann, Charlotte J W Gradussen, Laura Rodwell, Martin Gotthardt, Johannes B Van Goudoever, Arno F J Van Heijst
Preterm infants often have a reduced bone mineral content (BMC) with increased risk of metabolic bone disease. After birth it is difficult to supply calcium (Ca) and phosphorus (P) comparable to the high fetal accretion rate. It is not known whether high supplementation of minerals in the early postnatal period improves growth and bone mineralization. The aim of this study was to evaluate growth and bone mineralization at term corrected age (TCA) in very and extremely preterm infants who received different enteral Ca and P intakes during the first 10 days of life...
December 2, 2017: Nutrients
https://www.readbyqxmd.com/read/29207226/-the-treatment-of-the-patient-presenting-with-chronic-kidney-disease-ckd-and-fragility-fractures
#10
REVIEW
Andrea Giusti, Maria Fusaro
Fragility fractures occur in all stages of chronic kidney disease (CKD) due to low bone mineral density and poor bone quality (namely osteoporosis), as well as in CKD-mineral and bone disorders (CKD-MBD). As in postmenopausal women and older adults, the prompt identification of CKD subjects with a history of fragility fractures is crucial in order to implement strategies to reduce the risk of new fragility fractures and their consequences. The treatment of severe osteoporosis for patients with stages 1-3 CKD should not differ from patients without CKD, while clinical decisions and pharmacological treatments in subjects with stages 4-5/5D CKD differ greatly, being more tricky and challenging...
December 5, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29207223/-fragility-fracture-in-the-chronic-kidney-disease-ckd
#11
REVIEW
Maria Fusaro, Andrea Aghi, Maria Cristina Mereu, Andrea Giusti
Fragility fractures (FF) are common in patients with chronic kidney disease (CKD), and they occur at a younger age and with a higher frequency than in the general population, producing significant morbidity, mortality and healthcare costs. The pathogenic mechanisms underlying FF in CKD patients have not been completely understood. Behind CKD-MBD, the uremic toxicity should play a role in their pathogenesis, by affecting bone quality (uremic osteoporosis). There are very few prospective studies investigating risk factors for fragility fractures in CKD patients, and available algorithms for fracture risk prediction (FRAX and DeFRA) have never considered CKD...
December 5, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29203740/optical-density-of-upper-jaw-in-patients-with-malocclusion
#12
Vera D Kuroedova, Evheniy E Vyzhenko, Alexandra N Makarova, Ludmila B Galych, Tatyana A Chikor
INTRODUCTION: The growth and formation of facial skeleton is in interrelation with growth of cervical spine. Computer tomography plays an important role to examine and investigate the density of bony tissue resulting from total increase of osteopenic diseases and diseases of periodontal tissue. The aim of the paper is to compare indices of mineral density of bony tissue of the upper jaw and mineral density of the second cervical vertebra in patients with malocclusion. MATERIALS AND METHODS: 37 orthodontic patients were involved in the investigation...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29202447/bone-forming-peptide-3-induces-osteogenic-differentiation-of-bone-marrow-stromal-cells-via-regulation-of-the-erk1-2-and-smad1-5-8-pathways
#13
Jun Sik Lee, Mi Eun Kim, Jong Keun Seon, Ju Yeon Kang, Taek Rim Yoon, Yong-Duk Park, Hyung Keun Kim
A bone-remodeling imbalance induced by increased bone resorption and osteoclast formation causes skeletal diseases such as osteoporosis. Induction of osteogenic differentiation of bone marrow stromal cells (BMSCs) leads to bone regeneration. Many researchers have tried to develop new adjuvants as specific stimulators of bone regeneration for therapeutic use in patients with bone resorption. We tried to develop a new adjuvant that has stronger osteogenic differentiation-promoting activity than bone morphogenetic proteins (BMPs)...
November 22, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29197225/4-aminopyridine-based-amide-derivatives-as-dual-inhibitors-of-tissue-non-specific-alkaline-phosphatase-and-ecto-5-nucleotidase-with-potential-anticancer-activity
#14
Sidra Hassan, Syeda Abida Ejaz, Aamer Saeed, Muddasar Shehzad, Shafi Ullah Khan, Joanna Lecka, Jean Sévigny, Ghulam Shabir, Jamshed Iqbal
Ecto-nucleotidase members i.e., ecto-5'-nucleotidase and alkaline phosphatase, hydrolyze extracellular nucleotides and play an important role in purinergic signaling. Their overexpression are implicated in a variety of pathological states, including immunological diseases, bone mineralization, vascular calcification and cancer, and thus they represent an emerging drug targets. In order to design potent and selective inhibitors, new derivatives of 4-aminopyridine have been synthesized (10a-10m) and their structures were established on the basis of spectral data...
November 21, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29195858/phosphate-binder-use-in-us-dialysis-patients-prevalence-costs-evidence-and-policies
#15
Wendy L St Peter, Lori D Wazny, Eric D Weinhandl
Medicare costs for phosphate binders for US dialysis patients and patients with chronic kidney disease enrolled in Medicare Part D exceeded $1.5 billion in 2015. Previous data have shown that Part D costs for mineral and bone disorder medications increased faster than costs for all Part D medications for dialysis patients. Despite extensive use of phosphate binders and escalating costs, conclusive evidence is lacking that they improve important clinical end points in dialysis patients or non-dialysis-dependent patients with chronic kidney disease...
November 28, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29194852/the-role-of-sclerostin-dickkopf-1-and-receptor-activator-of-nuclear-factor-kb-ligand-osteoprotegerin-signalling-pathways-in-the-development-of-osteoporosis-in-patients-with-haemophilia-a-and-b-a-cross-sectional-study
#16
P Anagnostis, S Vakalopoulou, D Christoulas, S A Paschou, A Papatheodorou, V Garipidou, P Kokkoris, E Terpos
AIM: Haemophilia A and B are associated with reduced bone mineral density (BMD). The aim of this study was to assess circulating sclerostin and dickkopf-1 (Dkk-1), (inhibitors of osteoblastic differentiation), as well as the receptor activator of nuclear factor kB ligand (RANKL)/osteoprotegerin (OPG) system (the major regulator of osteoclastogenesis), in patients with haemophilia (PWH), their possible correlations with clinical risk factors and the effect of ibandronate on these markers...
December 1, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29194391/impaired-osteogenesis-of-disease-specific-induced-pluripotent-stem-cells-derived-from-a-cfc-syndrome-patient
#17
Jung-Yun Choi, Kyu-Min Han, Dongkyu Kim, Beom-Hee Lee, Han-Wook Yoo, Jin-Ho Choi, Yong-Mahn Han
Cardiofaciocutaneous (CFC) syndrome is a rare genetic disorder caused by mutations in the extracellular signal-regulated kinase (ERK) signaling. However, little is known about how aberrant ERK signaling is associated with the defective bone development manifested in most CFC syndrome patients. In this study, induced pluripotent stem cells (iPSCs) were generated from dermal fibroblasts of a CFC syndrome patient having rapidly accelerated fibrosarcoma kinase B (BRAF) gain-of-function mutation. CFC-iPSCs were differentiated into mesenchymal stem cells (CFC-MSCs) and further induced to osteoblasts in vitro...
December 1, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29193308/the-influence-of-chronic-kidney-disease-on-the-structural-and-mechanical-properties-of-canine-bone
#18
A Shipov, R Shahar, N Sugar, G Segev
BACKGROUND: Chronic kidney disease (CKD) is common in companion animals. Secondary hyperparathyroidism is an inevitable consequence of the disease and may have deleterious effect on the bone; however, the information regarding CKD-associated bone abnormalities in companion animals is scarce. HYPOTHESIS/OBJECTIVES: Dogs with CKD have decreased bone quality compared to dogs without CKD. ANIMALS: Nine dogs diagnosed with naturally occurring CKD for at least 6 months and 9 age-matched controls...
November 30, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29189198/multiple-brown-tumors-a-rare-presentation-in-the-modern-era%C3%A2
#19
Natacha Rodrigues, Iolanda Godinho, Estela Leite Nogueira, Sofia Jorge, Dolores López-Presa, António Gomes da Costa, André Luiz Weigert
Chronic kidney disease (CKD) commonly evolves with disturbances in mineral and bone metabolism, currently defined as CKD-MBD. Management strategies have progressed over the years, but our knowledge regarding evaluation and treatment is still sparse. Herein, we describe a rare case of a hemodialysis patient with apparently fairly controlled hyperparathyroidism (HPTH), who developed multiple symptomatic brown tumors involving the scull, mandible, vertebrae, pelvis, and metacarpus. Parathyroidectomy allowed complete resolution of the bone lesions preventing disastrous consequences...
November 30, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29189197/hr-pqct-detects-alterations-in-bone-microstructure-in-men-with-ckd-stages-3-and-4-which-are-influenced-by-hormonal-changes-and-body-composition%C3%A2
#20
Francisco P Paranhos-Neto, Guilherme A C Lima, Luciana C Silva, Miguel Madeira, Leonardo Vieira Neto, Laura M C Mendonça, Inayá C B Lima, Alvimar G Delgado, Maurilo Leite, Carlos P Gomes, Maria Lucia F Farias
INTRODUCTION: Factors associated with osteodystrophy in predialysis patients are poorly understood. In the present study, we attempted to evaluate the impact of body composition and hormonal regulatory factors on the bone microstructure in a group of men with chronic kidney disease (CKD) stages 3 and 4. MATERIALS AND METHODS: 46 men, aged 50 - 75 years, with previously unrecognized CKD were evaluated by high-resolution peripheral quantitative computed tomography (HR-pQCT), and dual-energy X-ray absorptiometry (DXA)...
November 30, 2017: Clinical Nephrology
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