Maurizio Rossini

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Osteoblast differentiation is predominantly regulated by the WNT/β-catenin signaling (canonical WNT pathway), which, together with bone morphogenetic proteins, acts as the master regulator of osteogenesis. The recent characterization of the canonical WNT pathway in the regulation of bone modeling and remodeling provided important insights for our(More)
INTRODUCTION The aim of this study was to estimate the prevalence and determinants of vitamin D deficiency in patients with rheumatoid arthritis (RA) as compared to healthy controls and to analyze the association between 25-hydroxyvitamin D (25(OH)D) with disease activity and disability. METHODS The study includes 1,191 consecutive RA patients (85% women)(More)
Bone formation is influenced by the Wnt pathway through effects on osteoblast functionality, and these actions are opposed by two antagonists: sclerostin and Dickkopf-1 (DKK1). Decreased levels of serum sclerostin were found after treatment with the PTH analogue teriparatide and in patients with primary hyperparathyroidism (PHPT), while treatment with(More)
The definition of osteoporosis was based for several years on bone mineral density values, which were used by most guidelines for defining treatment thresholds. The availability of tools for the estimation of fracture risk, such as FRAX™ or its adapted Italian version, DeFRA, is providing a way to grade osteoporosis severity. By applying these new tools,(More)
We investigated the short-term effects on bone turnover markers of high doses of vitamin D3 in order to identify what initial therapeutic dose can be safely administered in vitamin D-deficient subjects. Thirty-seven elderly subjects [mean age 75 ± 3 (SD) years] were consecutively randomized to the administration of a single oral bolus of 600000, 300000, or(More)
Decreasing levels of estrogens during menopause are associated with reduced bone density and an increased risk of osteoporosis. Many women also experience bothersome vasomotor and vaginal symptoms during the menopausal transition. Results of systematic reviews and meta-analyses of randomized controlled trials have shown that both systemic estrogen therapy(More)
The aim of this study was to explore whether desensitization to the occurrence of the acute-phase response (APR) in patients previously treated with amino-bisphosphonates (N-BPs) is due to a long-lasting reduction in the number of circulating γδ T cells. Circulating lymphocyte subpopulation counts were obtained from 63 patients with postmenopausal or senile(More)
Osteogenesis imperfecta (OI) is a hereditary disease characterized by low bone mass, increased bone fragility, short stature, and skeletal deformities. This study focuses on OI type I, the mildest form of the disease. Bisphosphonates represent the prevailing standard of care in patients with OI. Teriparatide (TPD) is a PTH analog with bone-anabolic actions(More)
TNFα inhibitors (TNFαI) exert positive effects on disease activity in rheumatoid arthritis (RA). Bone involvement is a major determinant of functional impairment in this disease. Here we investigated the short-term effects of TNFαI therapy on bone metabolism and density. We studied 54 patients with RA starting a TNFαI biologic drug, in whom any factor known(More)
Tumor necrosis factor α inhibitors (TNFi) are the major class of biologic drug used for the treatment of Rheumatoid arthritis (RA). Their effects on inflammation and disease control are well established, but this is not true also for bone metabolism, especially for key factors as parathyroid hormone and Wnt pathway. Those two pathways are gaining importance(More)