View clinical trials related to Osteoporosis.
Filter by:The recent studies suggest that secretions from medullary adipocytes are involved in the mechanisms of bone loss in osteoporosis (OP) through their actions on neighbouring osteoforming cells, the osteoblasts. The objective of the research is the development of new cellular models representing the aging skeleton to confirm this hypothesis. To this end, osteoblasts will be isolated from human bone fragments coming from femoral heads discarded during total hip replacement surgery. The osteoblastic response to secreted factors released from medullary adipocytes of commercial origin will be analysed using conditioned media incubations. This phenotypic response will be quantified for each subject through the analysis of gene expression levels. Inter-subject phenotype variations will be related to bone density and microarchitecture data obtained by X-ray microtomography. This will assess the existence of a correlation between the osteoblast response to adipocyte secretions and the degree of osteoporosis of the subject from whom the cells are derived.
SUMMARY TITLE: "Efficacy of Cone Beam Computed Tomography derived radiomorphometric indices in screening of postmenopausal females for osteoporosis." RATIONALE: Osteoporosis is a disease of altered bone architecture affecting primarily elderly and middle-aged women and men, particularly post-menopausal women. It is responsible for a high number of fractures and poses a high financial burden in both developed and developing countries. In India, we are in a situation where an important, high- burden disease-osteoporosis is being neglected due to lack of facilities of detection, and unawareness about the other tools of assessing bone mineral density and fracture risk. Few researchers have explored the use of radiomorphometric indices of Cone Beam Computed Tomography (CBCT) and have concluded that these can be used to differentiate between osteoporotic and non-osteoporotic patients. Increasing use of CBCT for various dental conditions, especially implant planning in older age group of patients, which is prone to osteoporosis, calls for the need for further exploration in this regard. The studies available in the literature are heterogenous in nature and reproducibility of the indices used has not been measured. Also, the sample size in each study was limited alongwith presence of selection bias. Thus, the present study will aim at assessing the efficacy of these indices in CBCT in an Indian population, the studies of which are sparse in literature, which shall aid in timely detection and therefore timely intervention to increase the quality of life and reduce morbidity and mortality occurring as a consequence of this disease. RESEARCH QUESTION: P: Population (Postmenopausal females with Osteoporosis i.e. DXA values below -2.5) I: Intervention (none) C: Control (Non-osteoporotic post-menopausal females) O: Outcome (CTCI, CTMI, CTI(S)and CTI(I) scores) T: Time Frame (1 year) S: Study Design (Cross sectional observational study) Setting in Haryana, India Are radiomorphometric indices of CBCT useful for detecting the presence of postmenopausal osteoporosis?
Osteoporosis is an age-related disease with progressive loss of bone, leading to fragile bone. It is one of the major health issues in elderly and causes medical, social and economic impacts globally. Patients with osteoporosis have high risk of osteoporotic fractures. Low-magnitude high-frequency vibration (LMHFV) is a non-invasive biophysical intervention providing whole-body mechanical stimulation. Previous studies showed that LMHFV is beneficial to muscle strength(1), postural control(2), balancing ability(3, 4), new bone formation(5-7), spinal bone mineral density (BMD)(8), and blood circulation(9). During the LMHFV treatment, elderly needs to stand upright on the platform for 20min/day. However, some elderlies with poor standing ability cannot stand for a long period. Therefore, the design of vibration platform is modified for the disabled patients and the efficacy of LMHFV on this group of elderlies will be verified. It is hypothesized that new design of LMHFV is beneficial to wheelchair users in terms of vertebral bone mineral density, muscle health and musculoskeletal functions.
Radical cystectomy is associated with a greater risk of fracture due to long-term metabolic consequences of intestinal urinary diversions. One of the mechanisms theoretically involved with bone loss after radical cystectomy is metabolic acidosis that inhibits osteoblast activity, stimulates osteoclast bone resorption and urinary calcium loss. Other factors as advanced age, diabetes or chronic renal failure may increase the effect of metabolic acidosis. Moreover, osteoporosis in men remains under-diagnosed and under-appreciated. Although metabolic and bone changes after radical cystectomy are well known, bone mineral density (BMD) or fracture risk assessment are not recommended in different international guidelines during follow-up. The objective of this study is to evaluate the fracture risk of male patients undergoing radical cystectomy after more than one year of follow-up. Fracture risk assessment will be performed by BMD to analyse the prevalence of osteoporosis, vertebral fractures and measurement of Trabecular Bone Score (TBS) in combination with the Fracture Risk Assessment Tool (FRAX). These results will be correlated with blood markers with the objective to determine independent risk factors for osteoporosis or bone fracture in this population. To the best of the investigator's knowledge this will be the first study assessing the fracture risk after radical cystectomy performance evaluating BMD and the probability of fracture at 10 years using the FRAX algorithm.
Bone density is recognized as the most important factor to measure osteoporosis, and the prevalence of osteoporosis increases with age. Risk factors for osteoporosis include age, weight, exercise, diet, smoking and alcohol consumption. What's more, osteoporosis has a strong familial aggregation, and the genetic value of bone density is between 0.6 and 0.85. Therefore, it is necessary to conduct large-scale collection of population samples of osteoporosis fractures and relevant genetic studies.
A randomized, double-blind, two-group parallel, placebo-controlled clinical Phase III trial to compare the efficacy and safety of QL1206 and placebo in postmenopausal women with osteoporosis at high risk of fracture
Models of Osteoporosis Screening in Male Veterans aims to test 1 distinct care model of primary osteoporosis screening in men within the VA healthcare setting. All care models deliver VA recommended osteoporosis screening and treatment to high-risk Veterans by appropriate Durham VA clinical staff. The MOPS project will evaluate patient, provider and facility outcomes to determine the effectiveness of each intervention.
Studying the current state of the clinical approaches to bone diseases in breast cancer patients treated with adjuvant and/or hormone therapy
Phase 1, randomised, double-blind, placebo-controlled study of NaQuinate in healthy subjects after single ascending oral (PO) doses and multiple ascending PO doses.
Type 1 diabetes is associated with low bone mineral density(BMD) and type 2 diabetes with normal or high BMD. Cystatin C is a small molecule that is used to measure kidney function but it's not a troponin of the kidney. It has been associated with many other diseases like atrial fibrillation, depressive symptoms, melanoma, etc. This crossectional clinical study was done to evaluate the association between Cystatin C and Bone mineral density in both types of diabetic patients.