View clinical trials related to Osteoporosis.
Filter by:The investigators' long-term goal is to employ novel methods to improve bone formation and bone density in women (and men) with osteopenia or osteoporosis while also decreasing signs and symptoms of degenerative joint and disc disease that commonly accompany bone loss as well as improve quality of life (QOL). These conditions generally begin silently as early as the menopause transition and progress to osteopenia and osteoporosis during the post-menopausal years in aging women. The investigators also envision this will be beneficial in aging andropausal men with these conditions. The investigators postulate that melatonin in novel combination with other natural bone-protective agents may act in a "chronosynergy" manner to prevent and correct these perturbations, reducing the risk of bone fractures, and lessening the stiffness and pain associated with bone, joint and cartilage degeneration and improving quality of life (QOL). The objective here, which is the investigators' next step in pursuit of our goal, is to assess the efficacy of an alternative therapy that uses a novel combination of bone-forming agents, melatonin, strontium (citrate)/ vitamin K2 (MK7), and vitamin D3 on bone health in a postmenopausal population. Melatonin is a novel alternative to current treatment(s) because it has multiple bone-protective and sleep-promoting activities within the body, and it is relatively safe so it can be used in an aging population without untoward side effects; strontium and vitamin D3 are shown to enhance bone mineralization and improve post-menopausal osteoporosis. The project goal is to identify if this combination therapy improves bone health and QOL compared to women taking placebo. The investigators' central hypothesis is that combination therapy using melatonin, strontium, vitamin K2, and vitamin D3 will improve bone health and overall QOL in postmenopausal women not taking this regimen by reducing osteoclast activity and increasing osteoblast activity and by improving subjective measures of stress, anxiety, depression and menopause-related symptoms.
The purpose of the study is to provide information about the rate of response and persistence to drug therapies for osteoporosis. Another issue examined in this study refers to the preferences and concerns about future treatments in patients during "drug holiday".
Some possible humoural and cellular mechanism for diabetes related osteoporosis/fractures were proposed and summarzied as the following, (1)Diabetes mellitus increases osteoclast function but decreases osteoblast function, thereby leading to accelerated bone loss, osteopenia and osteoporosis. (2)DM/hyperglycemia induces production of macrophage colony stimulating factor (MCSF), tumor necrosis factor (TNF)-α and receptor activator of nuclear factor-κB ligand (RANKL), all of which are osteoblast-derived activators of osteoclast proliferation and differentiation. (3) DM/hyperglycemia suppresses osteoblast proliferation and function, in part, by decreasing runtrelated transcription factor (Runx)-2, osteocalcin and osteopontin expressions. (4)Adipogenic differentiation of mesenchymal stem cells is increased as indicated by the overexpression of adipocyte differentiation markers, including peroxisome proliferator-activated receptor (PPAR)-g, adipocyte fatty acid binding protein (aP2), adipsin and resistin. A decrease in neovascularization may further aggravate bone loss. (5)Bone quality is also reduced as a result of advanced glycation end products (AGE) production, which may eventually result in low impact or fragility fractures. DM are associated osteoporosis/fracture. The underlying mechanism, especially of type 2 DM, mandates a DM-osteoporosis cohort to elucidate. In clinical practice, to developed preventive strategies from osteoporotic-fracture is also necessary.
Osteoporosis is a prevalent health concern among older adults and is associated with an increased risk of falls that can cause fracture, injury or mortality. Identifying the factors related to falls occurring within this population is essential for the development of effective regimes for fall prevention. Studies have shown that muscle quality and good posture alignments are critical for balance control in older adults. People are diagnosed with osteoporosis often combining with muscles weakness, and increased spine kyphosis leading vertebral, fractures and poor balance control, even falls. Therefore, improving muscle quality, strengthening weak muscles and correcting postural alignment are essential elements for fracture and fall prevention in older adults with osteoporosis. The long-term objectives of this work are to prevent fracture and fall in older adults with osteoporosis by improving the function of degenerative muscles using exercise training.
The purpose of this study is to assess changes of bone mineral density (BMD) at 12 months during the therapeutic management of patients with lymphoma.
This post-market surveillance research project consists of data collection at specified time points using standard questionnaire instruments to compare pain level, mobility and function pre and post procedure using the D-Fine StabiliT® Vertebral Augmentation System and StabiliT® Bone Cement, an FDA approved product used in the standard treatment of vertebral compression fractures.
This study use RT-PCR and Western Blot technique to detect the expression of CLCF1 mRNA and protein in POP Kidney Yin deficiency group and healthy group to verify the relevance between CLCF1 and POP the kidney Yin deficiency syndrome.Through siRNA and overexpression,observe the mRNA and protein 's expression of CBP、JAK1、STAT4 and the protein phosphorylation of JAK1、STAT4 in JAK-STAT signal to reveal the CLCF1 regulate the CBP's mechanism.Use the Liuwei Dihuang Pills to detect the effect of treatment ,compare use or not the Liuwei Dihuang Pills to detect the mRNA and protein 's expression of CLCF1、CBP etc.Aim to clarify the POP kidney Yin deficiency molecular mechanism.
The purpose of this study is to evaluate the safety, tolerability, and immunogenicity profile of romosozumab after a single 210 mg subcutaneous dose in healthy participants and patients with stage 4 renal impairment (RI) or stage 5 RI requiring hemodialysis.
Both the pathogenesis and the treatment of osteoporosis may potentially interfere at different levels on the multi-stage complex cascade of events involved in bone healing/regeneration. To our knowledge no human studies have been performed to clarify the potential effect of osteoporosis on post-extraction alveolar healing. The primary outcome of the study is to compare alveolar bone changes in width and height 3 months after tooth extraction in 10 post-menopausal osteoporotic women and 10 post menopausal non osteoporotic women by the use of cone-beam computer tomography (CBCT) images. The secondary outcomes considered are: clinical changes in the external contour of the ridge and periodontal parameters in the neighbouring teeth after a tooth extraction and 3 months later. In addition the accuracy of panoramic morphometric indexes in detecting osteoporosis will be measured.
The purpose and objective of this study is to determine the changes in bone metabolism after bariatric surgery in postmenopausal women. This is a prospective cohort study that will enroll up to 40 postmenopausal female subjects with class II and III obesity from the Duke Center for Metabolic and Weight Loss Surgery. The study team will enroll subjects that are already being scheduled for either sleeve gastrectomy or Roux-en-Y gastric bypass. The osteoclast activity, the osteoblast activity, and the bone mineral density will be measured in all subjects preoperatively and 12 months postoperatively through research specific blood tests and Dual energy x-ray Absorptiometry (DEXA) scans. The primary endpoints are change in osteoclast activity as measured by C-terminal telopeptide of type I collagen and change in bone density as measured by DEXA scan. These are continuous variable and given the small sample size the investigators will use a nonparametric Wilcoxon rank-sum test to compare the difference in one year change in these variables. There is a slight risk of loss of confidentiality. Every effort will be made to protect all PHI. There is also the risk of increased exposure to radiation from the DEXA scans performed twice with each subjects participating in the study.