Bone Abstracts

Purpose: Systemic sclerosis (SSc) is a rare inflammatory rheumatic disease that has been associated with an increased risk of low bone mineral density (BMD). However, data on risk factors associated with bone loss in SSc are scarce. The objective of this study was to investigate the prevalence of and the risk factors for low BMD in patients with SSc.Methods: Cross-sectional data of 61 patients with SSc were collected. BMD in the lumbar spine, total hip a...

Poor bone mineralization remains a major health problem in patients with Thal and has been linked to functional zinc deficiency despite adequate dietary intake. The global etiology of poor bone mineralization includes inadequate dietary intake of calcium and vitamin D, endocrinopathies leading to disturbed calcium homeostasis, dysregulation of the GH–IGF1 axis, and delayed puberty, all resulting in limited growth, decreased bone formation and increased bone resorption. Th...

Background: Paget’s disease of Bone (PDB) has a strong genetic component and a candidate locus for the disease has been identified on chromosome 14q32, tagged by rs10498635 located within RIN3 (Albagha et al, Nat Genet 2011). RIN3 encodes a protein that acts as a guanine nucleotide exchange factor for Rab5b and Rab31. Here we investigated the candidacy of RIN3 as a predisposing gene for PDB.Methods: We studied expression of RIN3 by quantita...

Background: Hypercalcaemia secondary to malignancy is rare in children and adolescents. Parathyroid hormone related peptide (PTH-rP) secreted by malignant cells increases bone resorption and renal calcium retention causing hypercalcaemia. We report two cases of hypercalcaemia of malignancy refractory to treatment with pamidronate and corticosteroids but responsive to treatment with Denosumab and Zoledronic acid.Case 1: Presenting problem: A 17-year-old b...

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Breastfeeding women resorb trabecular bone to supply much of the calcium content of milk. Few studies have examined the speed and extent of BMD recovery after weaning, or the factors that predict a greater post-lactation increase in BMD. We hypothesize that weight-bearing, nutrition, hormones, and other factors facilitate bone formation after lactation.The aims of the Factors Affecting Bone Formation After Breastfeeding Pilot Study (FABB-Pilot) were to d...

Introduction: Osteoporosis affects the bones causing weak or brittle bones and increasing the risk of fracture. Efficacy of anti-osteoporotic treatment is based on drug potency and adherence and persistence. Teriparatide (TPTD) is the first anabolic agent developed for the treatment of osteoporosis. It is usually given as a daily subcutaneous injection for a two-year treatment course.Aim: To evaluate adherence and persistence to TPTD treatment in patient...

Background: It is known that one of the features of rheumatoid arthritis (RA) is a generalized bone loss, therefore important tasks for the physician are timely evaluating of the risk of fractures and approving osteoporosis treatment in patients with RA.Objectives: Through the Programme of the Russian Association of Rheumatology for the diagnosis, prevention and treatment osteoporosis (OP) in patients with RA we evaluated the 10 year probability of major...

It is well-established that in vitro differentiation of embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can recapitulate embryonic development through germ layer induction, enrichment and expansion of specific lineages. We have used PSC technology and developed a novel, mESC differentiation system for investigating the mechanisms of chondrocyte and osteoblast lineage commitment and differentiation. This step-wise, serum-free protocol uses specif...

The main cause of the bone destruction in rheumatoid arthritis (RA) is a destructive act of aggressively growing pannus, growth and angiogenesis of which are caused by the proliferation of fibroblasts in the synovium (S) due to the activation of fibroblast growth factor (FGF).Objectives: To reveal relationships of FGF with ultrasonic and arthroscopic and proliferative-destructive histological figures in RA.Methods: Complete compreh...