Bone Abstracts

Purpose: To determine whether and which co-morbidities (amongst those included in the Charlson co-morbidity index) confer an increased risk of hip fracture amongst elderly men.Methods: We conducted a population-based cohort study using a population database which contains primary care and hospital inpatient records of over >2 million people. All men aged ≥65 years registered on 1/1/2007 were followed up until 31/12/2009. Both exposure (co-morbi...

Background: Glucocorticoid immune suppression in kidney transplanted children jeopardizes optimal bone health recovery. So far, there are no studies that evaluate the effect of transplant and corticoid in bone parameters separately.Objective: To determine the effect of early corticosteroid withdrawal in bone parameters.Methods: Randomized, controlled study; two groups: corticosteroid withdrawal (at the 6th day post-transplant, then...

Background: Postmenopausal women are at high risk for osteoporosis, and early adoption of osteoporosis-preventative behaviours, such as physical activity and dietary calcium intake, can help mitigate this risk. Behavioural studies have shown that knowledge and health beliefs are key factors associated with adoption of healthy behaviours. There are few such studies regarding osteoporosis in South America. Our aim was to conduct an exploratory study evaluating osteoporosis-relat...

Background: Besides the classic actions of vitamin D on bone metabolism and calcium homeostasis, there is evidence emphasizing its antiproliferative and proapoptotic activities. Data coming mostly from Northern regions suggest an effect of 25-hydroxyvitamin D (25(OH)D) serum concentrations on breast cancer prevention. We aimed to study the association between 25(OH)D concentrations and breast cancer risk in a Mediterranean population (Spain).Methods: We ...

Peripheral computed tomography (pQCT) can estimate volumetric bone mineral density (vBMD) and distinguish trabecular from cortical bone. Few comprehensive studies have examined correlates of vBMD in Spanish premenopausal women.The aim was to study the association between bone microarchitecture, muscle mass and strength in premenopausal Spanish women and to evaluate the role of calcium intake. vBMD was assessed in 164 premenopausal women at the distal rad...

Individuals with Down syndrome (DS) have a number of phenotypic features, including a short stature. It has been reported that people with DS have lower areal BMD than the general population, but this may be a biased result due to the smaller size of the skeleton, and it is unclear if individuals with DS have fragile bones. Thus, the objective of this study was to explore the skeleton of DS using two techniques, TBS and calcaneal ultrasound, which are not influenced by bone si...

Osteoporosis is a growing public health problem. As allies have for preventing physical activity, especially resistance training (RT) and hormone replacement. The aim of this study was to analyze the effect of Raloxifene (RLX) and RT in bone metabolism of rats on their aging period. Wistar rats (14–18 months), sham or ovariectomized (OVX) were treated with RLX (1 mg/kg per day) or saline by gavage and subjected to RT or not. The animals were subjected to RT-oriented pract...

Marine cyanobacteria have been recognized as an important source of bioactive compounds. The cytotoxicity on cancer cell lines has been extensively explored and several cyanobacteria metabolites are already described as potential anticancer compounds or are considered useful templates for the design of new anticancer drugs. The majority of compounds have been isolated from filamentous or colonial cyanobacteria that growth in high densities along shores. In contrast, picoplankt...

The healing of bone fractures is a tightly regulated process where released growth factors and cytokines interplay within an inflammatory environment in order to reestablish the functional bone. Recent studies have suggested that endothelial cells may dedifferentiate into mesenchymal multipotent cells via a mechanism called endothelial-to-mesenchymal-transition (EndoMT). Transforming growth factor-β (TGF-β) plays a critical role inducing EndoMT. Subsequent differenti...

Introduction: The creatine kinase (CK) is a dimeric enzyme, involved in energetical metabolism. It is present in many tissues, but higher concentration in skeletal and cardiac muscle.Therefore, conditions that involve muscle tissue may increase this serum enzyme. Such enzyme elevation is usually observed in inflammatory myopathies and others autoimmune diseases.Sometimes some elevation in CK is not fully understood out off these co...