View clinical trials related to Osteoporosis, Postmenopausal.
Filter by:In 2006, Weinberg proposed a hypothesis that iron accumulation was a risk factor for osteoporosis. Osteoporosis is a common complication in various diseases, such as hemochromatosis, African hemosiderosis, thalassemia, and sickle cell disease, which all share iron accumulation as a common denominator. Moreover, a 3-year retrospective longitudinal study has shown that iron accumulation was also associated with osteoporosis in healthy adults and especially that it can increase the risk of fractures in postmenopausal women. Based on these observations, iron chelation therapy may have a promising future in the treatment of iron accumulation-related osteoporosis by removing iron from the body. The purpose of this study is to determine whether the addition of the iron chelator, deferasirox, to standard therapy for postmenopausal osteoporosis, is safe and effective.
This proposed study was designed to investigate the prevalence of a 5-year incident osteoporotic fracture and evaluate the association of a 5-year change of 25-hydroxyvitamin D (25[OH]D)/bone turnover makers/bone mineral density (BMD) with the incident fracture in the Chinese postmenopausal women, based on an endeavor of a 5-year post-baseline follow-up visit of a previous cross-sectional study, PK-VF, in which 1724 participants were enrolled and examined.
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.
Osteoporosis is characterized by decreased bone strength and it is prevalent among postmenopausal women but also occurs in men and women with underlying conditions or major risk factors associated with bone demineralization. Its chief clinical manifestations are vertebral and hip fractures, although fractures can occur at any skeletal site.The World Health Organization (WHO) operationally defines osteoporosis as a bone density that falls 2.5 standard deviations (SD) below the mean for young healthy adults of the same gender—also referred to as T-score of -2.5. Postmenopausal women who fall at the lower end of the young normal range (a T-score of >1 SD below the mean) are defined as having low bone density (osteopenia) and are also at increased risk of osteoporosis. More than 50% of the fractures, including hip fractures, among postmenopausal women occur in this group. Teriparatide is one of the most effective treatment options for osteoporosis. But the cost of teriparatide is prohibitively expensive and in countries like India with limited personal resources of the individuals, its not a feasible option in the majority of the patients with severe osteoporosis. The investigators aim to compare weekly versus daily teriparatide therapy in an open label non inferiority trial and if successful, the investigators anticipate, the cost of treatment could be reduced considerably so that treatment becomes more affordable to a larger number of patients. Also with weekly therapy, number of multiple injections could be brought down.
Skeletal buffering of chronic acid loads may contribute to a significant amount of bone loss over time. Evidence from a few small short-term studies suggests that basic compounds, namely potassium citrate and potassium bicarbonate may reduce bone loss and improve bone density. The purpose of this study is to evaluate the effects of potassium citrate on bone metabolism. We hypothesize that administration of potassium citrate to postmenopausal women with osteopenia will reduce bone resorption and improve bone mineral density. Postmenopausal women with osteopenia (T score between -1.0 and -2.5) and no history of fracture will be randomized to either daily potassium citrate or placebo for one year. Primary outcomes will be markers of bone turnover, which will be measured over 12 months. Secondary outcomes will be bone mineral density, compliance, and adverse events.