Active clinical trials for "Bone Diseases, Metabolic"

The primary objective of this clinical trial is to determine the effects of hesperidin on biochemical markers of bone in post-menopausal women. The secondary objectives are: To investigate changes in bone formation and bone resorption markers in response to hesperidin intake To compare the efficacy of hesperidin in a milk versus biscuit To collect safety information of hesperidin consumption in a human trial

Osteoporosis is one of the most common skeletal disorders. Today in the United States, 10 million individuals have osteoporosis and 34 million more have low bone mass or osteopenia, which places them at an increased risk of some day developing osteoporosis. Of the people affected by this problem, 68% are women.The current thinking on the development of osteoporosis is that the changes in bone turnover that occur with aging play a major factor. Many modalities of treatment are used to prevent the bone loss and increased fracture risk associated with osteoporosis and osteopenia. Melatonin supplementation may be another treatment modality that lowers risk of hip fracture in perimenopausal women. Melatonin can remodel bone in animal models and in culture. Melatonin works through melatonin receptors to form osteoblasts from human mesenchymal stem cells and has been shown to inhibit osteoclast activity in rodents. Melatonin levels have been correlated with modulating bone markers; low nocturnal levels of melatonin correlate with in an increase in bone marker metabolism and osteoporosis. It is been shown that women who have worked night-shifts for greater than 20 years have increased risk for wrist and hip fractures. Night-shift workers have lower nocturnal melatonin levels than people who do not work the night-shift. The addition of exogenous melatonin suppresses bone marker metabolism. In human stem cells taken from bone marrow, melatonin increases the activity of bone-forming cells called osteoblasts. It is hypothesized that melatonin will improve bone health, menopausal quality of life and sleep compared to placebo in perimenopausal women. In particular, the investigators expect perimenopausal women taking melatonin to show an improvement in overall bone health as revealed by a reduction in bone marker turnover since bone resorption increases more so than bone absorption in this population compared to those women taking placebo. We also expect that perimenopausal women taking melatonin to have better control over their menopausal symptoms, better quality of life and less sleep disturbances when compared to their placebo controls since melatonin is known to modulate estrogen levels in the body and regulate sleep. The data from these studies may provide novel and alternative uses for melatonin; in particular its use for the prevention and/or treatment of osteoporosis.

Osteopenia and osteoporosis cause thinning of bone tissue and loss of bone density over time. The purpose of this study is to determine the safety and effectiveness of nitroglycerin ointment for the treatment of osteopenia in postmenopausal women. Study hypothesis: On average, participants in the base therapy cohort who receive placebo ointment control and calcium/vitamin D will lose more bone density than participants in the nitroglycerin cohort over the 36-month period.

This study will provide valuable data on whether soy isoflavones impact bone loss in postmenopausal women. The study will help clarify potential mechanisms and contribute to our understanding of isoflavones as an alternative to traditional hormone therapy.

The goals of this study are 1) to investigate the extent to which dried plum improves bone health by measuring bone density (a measure of bone strength) of whole body, hip, and forearm, indicators of bone formation and bone breakdown, and 2) to determine the anti-inflammatory effects of dried plum by assessing biomarkers of inflammation. Additionally, relevant medical history and lifestyle variables will be recorded.

Bone disease and adrenal suppression are two of the many side effects of steroid use in pediatrics. Evidence has shown that adrenocorticotropic hormone (ACTH) protects against the adverse bone effects of steroids in animals and in vitro models, but this has not yet been evaluated in humans. The proposed mechanism in these studies is that ACTH stimulates osteoblasts in bone to release Vascular Endothelial Growth Factor (VEGF), which increases the vascularity in high risk areas of bone. This can potentially be protective against osteonecrosis and osteopenia, which can lead to bone fractures if not prevented. The VEGF release can also be used to demonstrate that an administration of exogenous ACTH occurred. This could be important in diagnosing adrenal insufficiency (AI). One of the tests to assess central AI is the low-dose ACTH stimulation test (LDAST). This test has a high rate of false positive results due to technical limitations. However, if an ACTH-stimulated VEGF level can be measured during the test as a marker of the test being done properly, it will allow for proper interpretation of the results (and identification of a false positive), which will reduce the number of patients being incorrectly diagnosed with central AI. This study will recruit ten healthy children and adolescents, ages 9-18, to assess the effects of ACTH on VEGF levels. The investigators will measure the response of VEGF and cortisol to an administration of a low dose and high dose of cosyntropin (the synthetic ACTH analog used in this test). The hypothesis of this study is that VEGF and cortisol will both increase after administration of cosyntropin. At this time, no other studies have demonstrated that VEGF is responsive to ACTH in humans. If the hypothesis is correct, the results will have two main implications. VEGF can be used as a marker of ACTH administration during the LDAST to identify false positive tests. Secondly, this will help further research into whether ACTH can be used to protect against bone disease in high-dose steroid-treated patients. Further studies can be done to assess whether this effect will be the same in patients with AI or steroid-induced adrenal suppression.

Osteoporosis constitutes a major public health concern. For instance, in European Union 1 in 3 women and at least 1 in 6 men will suffer an osteoporotic fracture during their lifespan. The burden of osteoporosis is estimated to raise 25% by 2025. Worldwide, by 2050, the incidence of osteoporotic fractures is expected to increase 240% in women and 310% in men compared to 1990. The aforementioned estimates might indicate the existence of some gaps related to current products on the market for prevention and treatment of osteoporosis. Actually, the use of the approved pharmacological agents for osteoporosis have been decreasing in European Union and worldwide. Patients are becoming increasingly reluctant to take medicines; even those with severe osteoporosis are refusing treatment. Recent published reports on the matter revealed that patients fear the side effects of current pharmacological agents. Actually, therapy with bisphosphonates, the most prescribed medication for the treatment of postmenopausal, glucocorticoid-induced and male osteoporosis has been associated with severe side effects as osteonecrosis of the jaw and atypical femoral fractures. Colostrum, a milky substance produced by mammals, known to be responsible for the development of the immune and skeleton systems of the offspring, has on its constituent's lactoferrin (LF). This multi-functional protein has been shown to affect both bone resorbing and bone formation pathways. The safety and tolerance on the use of bovine colostrum in humans (children and adults) have been well documented; it has a 'Generally Recognized As Safe' status from the United States Food and Drug Administration. Allergies and lactose intolerance, which are main shortcomings of milk consumption, have not been reported in relation to colostrum. Actually, human colostrum and bovine colostrum share the same bioactive components, but bovine sources are more potent than that of human. In accordance, bovine colostrum supplementation has been used in several therapeutic applications as gastrointestinal disorders, allergies and autoimmune diseases, viral and bacterial illnesses, and HIV-associated immunomodulation HIV. However, the effectiveness of bovine colostrum (as a whole and not only LF) to reduce bone losses has not been considered yet. Therefore, this study aims at analyzing the effects of bovine colostrum in diminishing bone mass losses in humans.

The aim of the current study is to evaluate the efficacy of a probiotic product on bone mineral density (BMD) in healthy early post-menopausal women, compared to placebo. The primary endpoint is to assess changes of BMD at lumbar spine after an intervention period of 12 months. Changes in BMD at the femoral neck (hip) will also be measured as well as changes in bone turnover markers during the period of 12 months.

Recently, osteoporosis has been recognized as a serious health problem in the elderly, it has also increased in young • middle-aged layer. Ginseng is history 2, 000 years Korean typical herbal medicine which is used as a medicinal is known the mystery of Elixir from a long time ago. A previous study was administered ginseng extract results in animal models induced osteoporosis, the bone-related biomarkers, including improved bone density and bone mass.

The present project hypothesizes that the potential protective effect of olive oil relies on its polyphenols profile (quality and quantity) and that it may be synergistic to other food components. Among the nutrients that may be of interest for bone and muscle tissues, unsaturated fatty acids and vitamins are the most described. Consequently, based on the promising available preliminary data, the present project aims to investigate the possible preventive effect of olive oil polyphenols and eventually the synergistic effects of fatty acids and vitamin D on bone, muscle and adipose tissue, in order to prevent any locomotor dysfunction. Volunteers will be supplemented during 9 months. The primary and secondary outcome measures will be performed at baseline, 3 and 9 months.