Abstract:
:Osteoclastogenic cytokines produced by T and B lineage cells and interleukin (IL)-7-induced expansion of the pool size of osteoclast precursors have been suggested to play an important role in acceleration of osteoclastogenesis induced by estrogen deficiency. However, the contribution of increased RANKL produced by osteoblasts/stromal cells to increase osteoclastogenesis in a mouse model of estrogen-deficient osteoporosis and in vitro effects of IL-7 on osteoclast precursor generation remain controversial. Thus, we investigated the effect of ovariectomy (OVX) of mice on production of RANKL, osteoprotegerin (OPG), and IL-7 in bone and the effect of IL-7 on osteoclast precursor generation in vitro. OVX did not significantly stimulate mRNA expressions of RANKL and OPG in whole femurs. Because the epiphysis, but not the femoral shaft (diaphysis) or bone marrow, is the main site of osteoclastogenesis, it is important to specifically analyze mRNA expression by osteoblasts/stromal cells at these parts of the femur. Therefore, we isolated RNA from bone marrow cell-free epiphysis, diaphysis, and flushed-out bone marrow and examined mRNA expression. The results showed no significant changes of RANKL and OPG mRNA expression in any part of the femur. In addition, OVX did not significantly affect RANKL and OPG mRNA expression by the adherent stromal cells isolated from flushed-out bone marrow cells but did stimulate RANKL mRNA expression by B220(+) cells in the nonadherent cell fraction. On the other hand, OVX increased IL-7 mRNA expression in the femur as well as IL-7 concentrations in bone fluid. In cultures of unfractionated bone cells isolated by vigorous agitation of minced whole long bones to release the cells tightly attached to the bone surfaces, but not in cocultures of clonal osteoblasts/stromal cells and flushed-out bone marrow cells, IL-7 stimulated generations of osteoclasts as well as osteoclast precursors. These data suggest that increased RANKL production by osteoblasts/stromal cells is unlikely to play a central role in acceleration of osteoclastogenesis in estrogen deficiency of mice and that IL-7 stimulates osteoclast precursor generation, presumably through an action of IL-7 on the cells attached to bone rather than on cells contained in the bone marrow cell population.
journal_name
J Bone Miner Metabjournal_title
Journal of bone and mineral metabolismauthors
Sato T,Watanabe K,Masuhara M,Hada N,Hakeda Ydoi
10.1007/s00774-006-0723-ysubject
Has Abstractpub_date
2007-01-01 00:00:00pages
19-27issue
1eissn
0914-8779issn
1435-5604journal_volume
25pub_type
杂志文章abstract::Osteoporosis is a growing health problem in women and in men. This cross-sectional study examined the association of anthropometric, lifestyle, and hormonal factors with bone mineral density (BMD) in 152 healthy Korean middle-aged men. Smoking habits and alcohol consumption were assessed by interview. Serum testostero...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-003-0500-0
更新日期:2004-01-01 00:00:00
abstract::The effects of catecholamine excess due to pheochromocytoma on body composition, including skeletal muscle mass, are unknown. Here, we investigated the effects of catecholamine metabolites on body composition in subjects with pheochromocytoma. After body compositions using bioelectrical impedance analysis, urinary met...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00774-018-0959-3
更新日期:2019-07-01 00:00:00
abstract::The effects of unilateral sciatic neurectomy (USN) on the development of the femur were studied in 15 growing Wistar-derived rats (age, 5 weeks). The rats were divided into four groups: USN-operated group (right femur), USN-nonoperated group (left femur), sham-operated group (right femur), and sham-nonoperated group (...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s007740050093
更新日期:1999-01-01 00:00:00
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journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s007740170057
更新日期:2001-01-01 00:00:00
abstract::The aim of the study was to assess the clinical performance of the model combining areal bone mineral density (aBMD) at spine and microarchitecural texture (TBS) for the detection of the osteoporotic fracture. The Eastern European Study is a multicenter study (Serbia, Bulgaria, Romania and Ukraine) evaluating the role...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章,多中心研究
doi:10.1007/s00774-013-0529-7
更新日期:2014-09-01 00:00:00
abstract::Fracture healing is a complex biological process involving the proliferation of mesenchymal progenitor cells, and chondrogenic, osteogenic, and angiogenic differentiation. The mechanisms underlying the proliferation and differentiation of mesenchymal progenitor cells remain unclear. Here, we demonstrate Dickkopf-relat...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-015-0711-1
更新日期:2016-11-01 00:00:00
abstract::Previously, we reported that millimeter wave promoted the chondrocyte proliferation by pushing cell cycle progression. Activation of K(+) channels plays an essential role in the stimulating of extracellular matrix (ECM) synthesis and the cell proliferation in chondrocytes. While it is unclear if millimeter wave enhanc...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-013-0513-2
更新日期:2014-07-01 00:00:00
abstract::Osteocytes form a three-dimensional (3D) cellular network within the mineralized bone matrix. The cellular network has important roles in mechanosensation and mechanotransduction related to bone homeostasis. We visualized the embedded osteocyte network in chick calvariae and observed the flow-induced Ca2+ signaling in...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-017-0868-x
更新日期:2018-09-01 00:00:00
abstract::The aim of this study was to explore the effects of α-zearalanol (α-ZAL) on the proliferation of mouse bone-marrow-derived mesenchymal stem cells (BMSCs) and their differentiation into osteoblasts. Six- to eight-week-old BALB/C mice were used either as recipients or as bone marrow donors. BMSCs were isolated and colle...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-015-0659-1
更新日期:2016-03-01 00:00:00
abstract::The aim was to evaluate the risk of new vertebral fractures with the increasing number and severity of prevalent vertebral fractures in women who received placebo or minodronate in a post hoc analysis of a 2-year randomized, double-blind, placebo-controlled study. The subjects were women aged 55-80 years old with 1-5 ...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00774-013-0439-8
更新日期:2013-09-01 00:00:00
abstract::Osteopathic changes sometimes occur in patients with complex regional pain syndrome (reflex sympathetic dystrophy and causalgia). We aimed to investigate whether such osteopathic changes occurred in rats with chronic constriction injury (CCI) of the sciatic nerve. A CCI of the sciatic nerve was established in a unilat...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s007740200012
更新日期:2002-01-01 00:00:00
abstract:INTRODUCTION:Etelcalcetide binds to the extracellular domain of the calcium-sensing receptor (CaSR), while cinacalcet binds to the 7-transmembrane domain of the CaSR; however, it is unknown, whether etelcalcetide has similar effects to cinacalcet on parathyroid hormone (PTH) secretion. MATERIALS AND METHODS:The PTH-ca...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-020-01169-z
更新日期:2020-11-16 00:00:00
abstract::We designed a randomized, double-blind, controlled clinical trial to compare the effect of two regimens for administering cholecalciferol on the serum 25-hydroxycholecalciferol [25(OH)D] levels and in the reversion of secondary hyperparathyroidism in the elderly living in a low-income housing unit in the city of Porto...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00774-008-0858-0
更新日期:2008-01-01 00:00:00
abstract::Knee loading is a relatively new loading modality in which dynamic loads are laterally applied to the knee to induce bone formation in the tibia and the femur. The specific aim of the current study was to evaluate the effects of loading frequencies (in Hz) on bone formation at the site away from the loading site on th...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-007-0774-8
更新日期:2007-01-01 00:00:00
abstract::There is no well-established treatment for osteoporosis in male patients with leprosy, because no clinical trials have examined the efficacy of treatment on bone mineral density (BMD) or fracture incidence in patients with leprosy. In this study, we report a case of osteoporosis in a man with leprosy, treated by oral ...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-004-0546-7
更新日期:2005-01-01 00:00:00
abstract::Different model systems using osteoblastic cell lines have been developed to help understand the process of bone formation. Here, we report the establishment of two human osteoblastic cell lines obtained from primary cultures upon transduction of immortalizing genes. The resulting cell lines had no major differences t...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-016-0753-z
更新日期:2017-03-01 00:00:00
abstract::Osteoarthritis is an aging-related degenerative disease that severely influences the elders' life quality. However, there have been few clinical approaches available until now. Currently, more knowledge of the pathology of osteoarthritis has been illustrated. Especially, diabetes can be the only predictor of osteoarth...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章,评审
doi:10.1007/s00774-014-0628-0
更新日期:2015-01-01 00:00:00
abstract::We investigated the combinatorial effects of whole-body vertical vibration (WBVV) with the primarily osteoanabolic parathyroid hormone (PTH) and the mainly antiresorptive strontium ranelate (SR) in a rat model of osteoporosis. Ovariectomies were performed on 76 three-month-old Sprague-Dawley rats (OVX, n = 76; NON-OVX...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-016-0736-0
更新日期:2017-01-01 00:00:00
abstract::Expression of the genes encoding bone morphogenetic proteins (BMPs), BMP type IA receptor (BMPR-1A), and rat distal-less homolog (rDlx) was studied in bone, callus, and the surrounding soft tissue following rat femoral closed fracture, using RT-PCR-based techniques. Before fracture, the genes encoding BMP-5, BMP-6, an...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s007740050013
更新日期:2000-01-01 00:00:00
abstract:INTRODUCTION:The specific aims of the study were to compare possible differences in sclerostin and preadipocyte factor-1 (Pref-1) between rhythmic gymnasts (RG), swimmers (SW) and untrained controls (UC), and to investigate the relationships of sclerostin and Pref-1 with bone mineral characteristics in studied groups. ...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-020-01141-x
更新日期:2020-09-02 00:00:00
abstract::This study aimed to estimate the prevalence of locomotive syndrome, sarcopenia, and frailty and clarify their co-existence in a population-based cohort. The third survey of Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study was conducted between 2012 and 2013, examining 963 subjects (aged ≥ 60 yea...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-019-01012-0
更新日期:2019-11-01 00:00:00
abstract::A link between vascular calcification and bone anomalies has been suggested in chronic kidney disease (CKD) patients with low bone turnover disease. We investigated the vascular expression of osteocyte markers in relation to bone microarchitecture and mineralization defects in a model of low bone turnover CKD rats wit...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-018-0919-y
更新日期:2019-03-01 00:00:00
abstract::Chronic kidney disease (CKD) mineral and bone disorders (CKD-MBD) may lead to low bone mineral density (BMD) and vascular calcification (VC), but links to the latter are unclear. Here we investigated associations between BMD, coronary artery calcium (CAC) scores, and histological signs of VC in end-stage renal disease...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-016-0788-1
更新日期:2017-09-01 00:00:00
abstract::Primary hyperparathyroidism is characterized by hypercalcemia with loss of bone mass. After parathyroidectomy, hypocalcemia may develop in some patients due to unregulated bone mineralization. Preoperative administration of bisphosphonates, potent inhibitors of osteoclast activity, may prevent postoperative hypocalcem...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-005-0680-x
更新日期:2006-01-01 00:00:00
abstract::Lipid rafts are membrane platforms for signaling molecules that regulate various cellular functions. During osteoclastogenesis, lipid rafts also have been shown to play a crucial role for cell fusion upon RANK/RANKL interaction and further activation of osteoclasts, resulting in bone resorption. To investigate protein...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-009-0150-y
更新日期:2010-07-01 00:00:00
abstract::Although the influence of weight-bearing activity on bone mass has been widely investigated in white women, few studies have been conducted in black, African populations. We investigated bone mineral density (BMD) in black South African women, with and without a history of load-carrying on the head. We also investigat...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-009-0113-3
更新日期:2010-03-01 00:00:00
abstract::Stimulation of osteoblast proliferation and differentiation is important for the in vivo bone-bonding ability of biomaterials. Previous in vitro studies have used biochemical assays to analyze osteoblast-specific gene expression in cultured osteoblasts. In this study, we generated transgenic mice harboring a monomeric...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-013-0544-8
更新日期:2014-11-01 00:00:00
abstract::Leptin has been proposed to be a key molecule involved in energy regulation. Based on the generally acknowledged concept that a heavier person has a higher bone density, leptin is thought to be potentially involved in bone metabolism. Serum leptin, various bone markers, and bone mineral density (BMD) were studied in 5...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s007740170050
更新日期:2001-01-01 00:00:00
abstract::Osteotropic growth factors play an important role in bone metabolism. Nevertheless, knowledge about their expression in relation to distraction osteogenesis remains limited. The aim of the present study was to determine the expression of growth hormone (GH), growth hormone receptor (GHR), insulin-like growth factor I ...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-006-0683-2
更新日期:2006-01-01 00:00:00
abstract::Variation in drug response to hormone replacement therapy (HRT) may reflect genetic heterogeneity in the estrogen-related genes, possibly including estrogen receptor alpha (ERalpha) gene. However, only a few association studies of the drug response to HRT have been reported, focusing mainly on the intronic polymorphis...
journal_title:Journal of bone and mineral metabolism
pub_type: 杂志文章
doi:10.1007/s00774-005-0619-2
更新日期:2005-01-01 00:00:00