Bone Abstracts

The ArfGAP with RhoGAP domain, ankyrin repeat and PH domain containing protein 1 (ARAP1) is a multi-domain protein that binds to phosphatidylinositol lipids within different biological membranes and integrates Rho and Arf signalling pathways. It is ubiquitously expressed in many cells including osteoclasts and its overexpression is known to affect Golgi and induce filopodia by activation of Cdc42. We therefore hypothesized that ARAP1 might also play an important role in osteoc...

Silk fibroin (SF) sponges are a promising scaffold material for tissue engineering due to their biocompatibility, mechanical properties, and ability to support calcium-phosphate formation in vitro. However, previous studies have shown that SF can mineralize spontaneously in the presence of culture media, which has a detrimental effect on experimental integrity when analyzing how cells deposit bone-like tissue in tissue engineering studies. In this study we analyzed th...

Bone therapeutics is a bone cell therapy company addressing high unmet medical needs in the field of bone fracture repair, more specifically in non-union and delayed-union fractures where the bone repair process is impaired. The company has developed a unique allogeneic osteoblastic cell product (ALLOB®) derived from bone marrow which is currently tested in humans in the indication of delayed-union fractures. The purpose of the study was to directly compare ALL...

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The purpose of this study was evaluated the osteogenic differentiation in vitro of mesenchymal stem cells (MSC) of SHR (Spontaneously Hypertensive Rats) and Wistar (Normotensive) rats.Therefore, MSC from femoral bone marrow of Wistar and SHR rats 4 weeks old were utilized. The experimental protocols were approved by the Animal Experiments Local Ethics Committee (Process 00716-2012). The osteogenic medium (OM) consist of the proliferation medium (MEM) supplemented with...

Epilepsy is a relatively common condition of childhood, with anti-epileptic drugs (AEDs) the mainstay of medical therapy. AED use in adults has been shown to be associated with impaired bone density and increased risk of bone fracture. Paediatric data are more limited particularly in relation to fracture risk and skeletal geometry.This study aimed to examine the within-pair differences in fracture prevalence and bone, muscle and balance parameters in sex...

Roundabout receptors are crucial regulators of vessels and axons growth during development. A comparative transcriptomic study between the MDA-MB-231 breast cancer cell line and its osteotropic subpopulation, MDA-B02 cells, has shown an overexpression of ROBO4 receptor. Interestingly, a high ROBO4 expression in primary tumour from patients with breast cancer correlates with poor prognosis and increased risk of bone metastasis relapse. Inoculation of ROBO4 depleted cells in the...

Wnt proteins and their cognate receptors play a significant role in malignant diseases, in particular in prostate cancer (PCa). We previously showed that WNT5A inhibits PCa cell proliferation and induces apoptosis in vitro, leading to reduced PCa growth in vivo. However, the involved receptors remain unknown. Here, we determine the role of two Wnt receptors (FZD8, RYK) and their influence on the WNT5A-induced effects on PCa cells.The ex...

Objective(s): To assess osteoporosis risk factors for postmenopausal women and correlation with bone mineral density (BMD) in Latvia.Material and methods: A national cross-sectional study conducted in Latvia about osteoporosis risk factors in postmenopausal women and BMD determination with DXA. 1.598 women who had a DXA scan visit, took part in a study (May–October 2012). The women filled out a questionnaire with 25 multiple choice questions on oste...

see P75....