Active clinical trials for "Bone Diseases, Metabolic"

Rational: Osteoporosis in men is responsible for one third of fragility fractures. However the definition and especially the determinants of fracture in humans are less well known than in women. Primary Objective: To search radiologic, biochemical, genetic and micro-architecture bone factors associated to fractures in men with low bone density. Study design: case/control study (fracture vs. no fracture) with men selected according to low bone density (Z-score<-2). Eligibility criteria: Included subjects will be men whose age is ³ 40 and £ 70 years with a Z-score< -2 at least at one of the 3 measured sites (wrist, lumbar spine, femoral neck). Subjects with secondary osteoporosis will be excluded (corticosteroid treatment, hypogonadism, …) Progress of the study: The recruitment will be over two years. The study will include two periods, an inclusion visit and a period of 3 months to achieve radiological and biological examinations. The subjects will be recruited in the 3 rheumatology departments (LARIBOISIERE, COCHIN). Subjects will be investigated at LARIBOISIERE hospital to perform radiological examinations and biological sampling for laboratory tests within 3 months of enrollment. Evaluation criteria: Biochemistry: dosages of sexual steroids, bone remodeling markers and homocysteine; Genetic: evaluation of polymorphism of candidates genes associated to fragility fractures (collagen type I, homocysteine, LRP5); Radiology: evaluation of bone micro-architecture with a scan of lumbar spine and hip and peripheral micro-scan (XTREME sSCANCO) and bone densitometry at spine, femoral neck and wrist. Duration of participation: there is no follow up Total duration of the study: 2 years and 3 months. Number of subjects: 100 patients with fracture and 100 controls without fracture

Recent studies have shown that inhibition of Aquaporine-9 channels may ameliorate the bone degradation process. Pro-bone is an AQ - 9 channels inhibitor. This study is design to evaluate the safety of Pro-bone.

The purpose of this study is to investigate the influence of topiramate monotherapy on the bone and mineral metabolism markers, and bone density (the amount of mineral per square centimeter of bone ) in female participants with epilepsy (seizure disorder), before menopause (time in life when a woman stops having a menstrual period), as compared with healthy participants and comparative group received either carbamazepine or valproic acid monotherapy for at least last one year.

The aim of this study is to describe the clinical presentation, indications, and operative treatment as well as assess the morbidity, mortality, and overall performance of revisional GBP after either failed and/or complicated Biliopancreatic Diversion "BPD" for weight loss. With such information, we hope to determine what features might assist us in advancing our knowledge about mechanisms of failure after primary bariatric surgery, mechanism of action of revisional GBP, and performance of revisional GBP through traditional outcome measurements as well as identifying predictors of good or poor outcome after revisional GBP in this specific subpopulation.

The purpose of this study is to determine if certain drugs commonly used to treat multiple sclerosis have an effect on bone health.

Consumption of soy-based foods is associated with a number of health benefits, including lower risk of cardiovascular disease, breast and prostate cancer, attenuated menopausal symptoms and prevention of bone loss with age. In order to investigate the effect of isoflavone on bone mineral density (BMD) and in Taiwan women with postmenopausal osteopenia, a Taiwan Isoflavone Multicentric Enrollment Study (TIMS) is designed.

Patients suffering from acute renal colic are evaluated by non contrast computerized tomography with excellent identification rates of urinary stones. The scan also covers the bones of the ribs, spine and pelvis, allowing measurements of the bone density and identifying early osteopenic changes. Bone demineralization is associated with metabolic changes such as hypercalcemia or hypercalcuria. In this study the investigators will look for correlation between kidney stones, osteopenic bone changes and metabolic abnormalities.

The goal of this clinical trial to test the effect of periimplant soft tissue phenotype in the participants with implant placed and at least 1 year after implant loading. The main questions it aims to answer are: Is keratinized mucosal thickness (KMT) important in early marginal bone loss and peri implant health? Is keratinized gingival width (KGW) important in early marginal bone loss and and peri implant health? The researchers plan to include 80 implants in the study. These 80 implants will be divided into 2 groups in 2 different ways according to their KMT and KGW on their buccal surfaces: KMT ≥2 mm are included in the adequate KMT, and those with KMT<2 mm are in the insufficient KMT group. Those with KGW≥2 mm are adequate KGW, those with KGW<2 mm are adequate KGW. The researchers will assess marginal bone loss around the implant using radiographs and collect peri-implant crevicular fluid (PICF) using paper strips. Another researchers will measure the Receptor Activator Of Nuclear Factor-Kappa B Ligand (RANKL), Osteoprotegerin (OPG), Tumor Necrosis Factor Alpha (TNF-α), MicroRNA-223 (MiRNA-223), MicroRNA-27a (MiRNA-27a) levels in the collected PICF. They will compare radiographic bone loss and biomarker levels in groups.

Osteopenia is a clinical term to define the declined Bone Mineral Density (BMD) as per the normal reference values but not low enough to meet osteoporotic diagnostic criteria. A Dual-energy x-ray absorptiometry (DXA) bone scan is used to diagnose decreased BMD. Osteopenia is, as described by the World Health Organization (WHO), a score ranging from -1 to -2.5, whereas Osteoporosis is diagnosed with values less than - 2.5. The risk of a decrease in BMD doubles as a woman goes into Menopause. The objective of this study will be to determine the effects of Kinect-based virtual reality training on BMD, fracture risk, physical function and Quality of life in postmenopausal women with Osteopenia. The aim of the present study is to translate the ECOS-16 Questionnaire into Urdu Language along with validation of the translated versions by evaluating its validity and reliability in the Postmenopausal women of Pakistan with Osteopenia or Osteoporosis and understanding Urdu Language. No such study has been previously conducted in the Pakistan region which translates the specific questionnaire and follows the proper cross-culture adaptation protocol.

This study will compare and assess the prevalence of osteopenia and vitamin D deficiency as well as effects of TDF on the patients' bone among HIV positive and negative patients.