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MicroRNAs (miRNA) significantly contribute to bone formation by post-transcriptional regulation of gene expression. Mature miRNAs are generated following sequential cleavage by DROSHA/DGCR8 and DICER. However, recent studies have identified that some miRNAs require only one of these enzymes. Most studies seeking to clarify the role of miRNA during bone formation have been performed using DICER deletion...
Calcaneal quantitative ultrasound has been recognized as a non-invasive method for evaluation of bone strength and prediction of osteoporotic fracture.To extend a thorough genetic catalog for osteoporotic bone properties, we performed a genome-wide association study (rural cohort I, n=1895) of speed of sound (SOS) using the 1000 genome-based imputation in the discovery stage and then carried out in...
Bone sustains its structure through dynamic interaction between osteoblastic cells and osteoclastic cells. But imbalance may lead to osteoporosis caused by overactivated osteoclast cells that have bone-resorbing function. Recently, herbs have been researched as major sources of medicines in many countries. In vitro and in vivo anti-osteoclastogenic activity of Angelica gigas NAKAI have been reported,...
This study aimed to assess the factors associated with the prevalence, awareness, and treatment of osteoporosis in a representative sample of Korean women.Data were obtained from dual energy X-ray absorptiometry measurement of the lumbar vertebrae and femoral neck, and from a standardized questionnaire in 2870 Korean women aged 50years and older who participated in the Fourth Korea National Health...
Endogenous glucocorticoid (GC) may participate in bone physiology, even in subjects with no glucocorticoid excess. 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1) is a primary regulator catalyzing the reduction of inactive cortisone to active cortisol. To elucidate genetic relevance of HSD11B1 variants to vertebral fracture and osteoporosis, we investigated the potential involvement of six HSD11B1...
After stroke, many factors contribute to the loss of bone mineral density (BMD) and fracture. Pre-stroke low BMD and vertebral fracture may pose a greater risk of fractures and further contribute to additional functional loss. The purposes of this study were to assess pre-stroke BMD and vertebral fracture in patients with first stroke.Forty-eight patients with first stroke events were included. To...
Changes of bone metabolism begin from the initial stages of stroke; therefore, early prevention of these changes has become important. The most appropriate target for preventive therapy is to restrict the profound increase in osteoclastic bone resorption that occur soon after stroke. Oral bisphosphonates, which selectively target osteoclasts and their precursors, are appropriate drugs, but dysphagia...
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