Bone Abstracts

Bisphosphonates (BPs) are used to treat bone diseases characterized by excessive bone resorption. However, BPs can negatively affect the jaw bone by causing osteonecrosis of the jaw. Previously, we showed that BPs differently affect long-bone and jaw osteoclast precursors. Administration of BPs in vivo reduced the number of jaw bone marrow cells, without affecting long-bone marrow cells. Yet, BPs increased bone volume and mineral density of both long bone and jaw. Her...

Background: Bone marrow (BM) adiposity is inversely related to bone mineral density and increases with ageing and menopause. We previously observed that the variation in BM fat fraction was more pronounced in premenopausal women compared to men and postmenopausal women. We hypothesized that the variation in BM fat fraction in premenopausal women is associated with hormonal variations during the menstrual cycle.Objective: To investigate the dynamic change...

Objective: This multi-objective prospective observational study is intended to examine treatment patterns, occurrence of gastrointestinal (GI) complications and clinical and health outcomes in post-menopausal women with osteoporosis (OP) in Europe and Canada. This abstract presents the baseline results of the treated population.Materials and methods: Post-menopausal osteoporotic women currently on treatment completed surveys intended to measure the incid...

Objective: This multi-objective prospective study (MUSIC-OS) is intended to examine treatment patterns, occurrence of gastrointestinal (GI) complications and clinical and health outcomes in post-menopausal osteoporotic (OP) women in Europe and Canada. Surveys were administered to both physicians and patients as part of the MUSIC-OS study to document reasons for undertreatment in OP from both physician and patient perspectives.Materials and methods: A phy...

Background: Marfan syndrome (MFS) is a rare connective tissue disorder caused by mutation in the gene encoding the extracellular matrix protein fibrillin-1 (FBN1), leading to transforming growth factor-beta (TGF-β) signaling dysregulation. Although decreased axial and peripheral bone mineral density (BMD) has been reported in adults with MFS, data about the evolution of bone mass during childhood and adolescence are limited.Objectives: The aim of th...

Cancer cell growth is dependent on the microenvironmental support. Prostate and mammary cancer (PCa and MCa) cells preferentially metastasize to bone, where they induce either an osteoblastic or osteolytic response. These opposite stromal responses suggest that different types of cancers adopt distinct strategies to hijack the bone marrow/bone stroma for their growth support. However, the molecular cues underlying these divergent responses are largely elusive.<p class="abs...

Background: Low vitamin D concentrations among children and adolescents at northern latitudes are frequently observed. Also, inverse associations between 25-hydroxyvitamin D (25(OH)D) and PTH concentrations have been found in children of different ages. More studies on the link between vitamin D status and childhood bone health are needed.Objective: To evaluate the status of serum 25(OH)D in autumn and the association between 25(OH)D concentrations and b...

Aim: To determine the prevalence of vitamin D deficiency among adolescent Muslim girls attending a school in the UK, which adheres to a conservative dress code.Methods: Fifty-six (31%) out of 180 girls attending a Muslim High School for Girls (median age 13.2years, (IQR 12.5–13.8 years)) took part in this cross-sectional study. Seventy-nine percent (n=45) were of South Asian origin, 3.5% were Black African origin (n=2), 1.8% was Mi...

Aim: To evaluate progression of bone mineral density (BMD) and bone mineral content (BMC) during pubertal development and influence of body composition and vitamin D on BMD and BMC in children and adolescents.Materials and methods: This cross-sectional study was part of an ongoing health survey of Delhi school children. Total 1905 apparently healthy school children (835 boys; and 1070 girls) in the age group of 6–17 years were studied. After brief h...

Objectives: To evaluate progression of BMD and bone mineral content (BMC) during pubertal development and Influence of body composition and vitamin D on BMD and BMC in children and adolescents.Material and method: This cross sectional study was part of an ongoing health survey of Delhi school children which recruited 1905 apparently healthy school children (835 boys; 1070 girls) in the age group of 6–17 years. After brief history, anthropometry and ...