View clinical trials related to Bone Resorption.
Filter by:Bone losses are well known to occur in response to unloading (in microgravity or during immobilisation) and in patients with chronic obstructive airway disease (COPD). However, it is unknown whether there is an interactive effect between hypoxia and musculoskeletal unloading upon bone and mineral metabolism. Fourteen non-obese men, who are otherwise healthy, will undergo 3x 21-day interventions; normobaric normoxic bed rest (NBR; FiO2=21%), normobaric hypoxic ambulatory confinement (HAMB; FiO2=14%; ~4000 m simulated altitude), and normobaric hypoxic bed rest (HBR; FiO2=14%). The effects of hypoxia and bedrest on bone metabolism and phosphor-calcic homeostasis will be assessed (before and during each intervention, and 14 days after each intervention period) using venous blood sampling, 24hr urine collections, and peripheral quantitative computerized tomography (pQCT).
In the past few years, studies have evaluated the effect of systemic use of sodium alendronate, especially in the treatment of structural bone defects caused by periodontal diseases. This study evaluated the effects of non-surgical periodontal treatment associated with the topical application of 1% sodium alendronate on clinical and topographical parameters. Chronic periodontitis patients were recruited for the present study and were monitored at 3 and 6 months after baseline examinations. A placebo gel was used as control.
This study is designed to study the dose response effect of continuous Soluble Corn Fiber (SCF) intake over a 50 day period on bone resorption in healthy post menopausal women using the 41Calcium methodology. To further understand the dose response effect of SCF bone biomarkers will be studied. Our hypothesis is that soluble corn fiber will reduce bone resorption in a dose dependent manner in comparison to placebo when estimated by urinary 41Calcium excretion as well as bone biomarkers of resorption.
The aim of the study is to assess the relative antiresorptive properties of 2 osteoporosis medications when combined with teriparatide.
Bone loss is not only a well-documented effect of spaceflight on astronauts, but also a condition that affects millions of men and women on Earth each year. Many countermeasures to bone loss have been proposed, and many have been evaluated to some degree. To date, those showing potential have focused on either exercise or pharmacological interventions, but none have targeted dietary intake alone as a factor to predict or minimize bone loss during spaceflight. The investigators proposed to document how the ratio of acid precursors to base precursors in the diet is related to directional changes in markers of bone resorption and formation during flight and recovery from flight. There is a high likelihood for success in predicting the extent of bone loss from dietary intake patterns of astronauts during spaceflight, given that this concept is strongly anchored in data obtained from ground-based experiments in our laboratory and others. The notion of manipulating diet to minimize bone loss could also have significant social and economic impacts for NASA and for the general public - especially given the increasing trends for diets that are high in animal protein and low in fruits and vegetables. The results of the proposed experiments will lead to development of a dietary countermeasure for bone loss consisting of a balanced diet with no associated risks for side effects that might be present with pharmaceuticals or supplements, no requirement for payload mass, and no additional crew time necessary during flight.
The present study aimed to investigate the importance of gravitational induced forces that appear during normal ambulation for the health of muscles, bones and blood vessels. The main hypothesis of the present study is that gravitational loading alone, without muscle contractions, is insufficient to maintain bone strength.
This study examined changes in bone metabolism (markers of bone turnover, calcium metabolism) with a bout of acute treadmill running preceded by either a single, mixed meal or an overnight fast.
Biomarkers of bone resorption will be measured in the blood of patients with bone metastases from prostate cancer during the course of their illness. Changes in these biomarkers will be correlated with the patient's treatment with antiandrogen therapy and bisphosphonates and the response and/or progression of their cancer. It is hoped that serial measurement of these biomarkers may allow therapeutic monitoring in the future with successful individualisation of bisphosphonate therapy for metastatic prostate cancer.
Osteoclastic bone resorption depends on both the capacity to generate osteoclasts (osteoclastogenesis) and on individual osteoclast activity. The investigators objective is to study the effect of anti-TNF therapy on the number of osteoclast precursors in the peripheral blood of patients with Rheumatoid Arthritis, on in vitro osteoclastogenesis and on osteoclast activity before and during the treatment of patients with Rheumatoid Arthritis with Adalimumab.
The purpose of this study is to explore the skeletal effect of Thai traditional massage by examining the changes in biochemical markers of bone turnover immediately after the massage.