Abstract:
:Cylindrical trabecular bone specimens (d = 7 mm) were drilled in a vertical direction from the central part of the third vertebral body (L3) from 23 normal individuals aged 15-87 years (10 males and 13 females). The bone samples were embedded in methylmetacrylate and sawn in 400 microns thick sections with an arbitrary rotation but a fixed vertical axis. The sections were investigated in polarized light at a magnification of x 8. By using this technique, vertical and horizontal trabeculae were clearly separated due to different colors. Photographs were taken. These were magnified, and trabecular thickness and intertrabecular distance were measured, using a Zeiss-integration plate II. A significant age-related decrease was found in the mean horizontal trabecular thickness (r = -0.71, p less than 0.001), while the mean thickness of the vertical trabeculae was unchanged with age (r = 0.06, n.s.). Furthermore, a significant increase was found both for the mean distance between the horizontal trabeculae (r = 0.79, p less than 0.001) and between the vertical trabeculae (r = 0.75, p less than 0.001). The present study gave a clear and striking visual presentation of both the thinning and disappearance of the horizontal supporting struts in the vertebral trabecular lattice and the total removal of some of the vertical trabeculae--leading to the dramatic loss of bone strength previously demonstrated.
journal_name
Bonejournal_title
Boneauthors
Mosekilde Ldoi
10.1016/8756-3282(88)90038-5subject
Has Abstractpub_date
1988-01-01 00:00:00pages
247-50issue
4eissn
8756-3282issn
1873-2763pii
8756-3282(88)90038-5journal_volume
9pub_type
杂志文章相关文献
BONE文献大全abstract::Identification of a reliable marker of skeletal precursor cells within calcified and soft tissues remains a major challenge for the field. To address this, we used a transgenic model in which osteoblasts can be eliminated by pharmacological treatment. Following osteoblast ablation a dramatic increase in a population o...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2008.04.023
更新日期:2008-09-01 00:00:00
abstract::Hypertension and osteoporosis are two major chronic diseases affecting the elderly. A cross-sectional study of 3887 Chinese men (n = 1958) and women (n = 1929) was used to explore the association between angiotensin converting enzyme inhibitor (ACEI) use and bone mineral density (BMD). The participants were aged 65 ye...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2005.09.011
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:This observational safety study used national registers to compare the real world cardiovascular and skeletal safety of zoledronic acid (ZA) against oral bisphosphonates (oBP) and untreated population controls. METHODS:Propensity score matched cohort study in Sweden and Denmark. RESULTS:Matched cohort 1 in...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2020.115296
更新日期:2020-05-01 00:00:00
abstract:INTRODUCTION:Changes in hip structure and geometry during aging contribute to decreased bone strength. Little is known, however, about these characteristics at advanced age, when fragility fractures are common. We examined hip structural geometry in men and women of old age (72-84 years) and old-old age (85-96 years) t...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2007.06.001
更新日期:2007-10-01 00:00:00
abstract::The topological changes in vertebral cancellous bone were estimated in vertebrae from calcium-restricted ovariectomized Sinclair S-1 minipigs, a recently described animal model of cancellous osteopenia. Connectivity was estimated using unbiased stereological principles in disector pairs of sections from the first lumb...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/8756-3282(95)00116-u
更新日期:1995-06-01 00:00:00
abstract::Mammalian bone sialoprotein (BSP) is a mineralized tissue-specific protein containing an RGD (arginine-glycine-aspartic acid) cell-attachment sequence and two distinct glutamic acid (glu)-rich regions, with each containing one contiguous glu sequence. These regions have been proposed to contribute to the attachment of...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/s8756-3282(00)00392-6
更新日期:2000-12-01 00:00:00
abstract::SAM-P/6 is a recently developed strain of osteoporotic mice. In this study we tried to determine whether calcium, vitamin D3, parathyroid hormone (PTH), and estrogen modified the peak bone mass of young SAM-P/6 mice, and whether the effect of these medications persisted after treatment had been discontinued. Calcium s...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/8756-3282(94)90710-2
更新日期:1994-03-01 00:00:00
abstract::Mutations in the GALNT3 gene result in familial tumoral calcinosis, characterized by persistent hyperphosphatemia and ectopic calcific masses in soft tissues. Since calcific masses often recur after surgical removal, a more permanent solution to the problem is required. Nicotinamide is reported to lower serum phosphat...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2014.06.036
更新日期:2014-10-01 00:00:00
abstract::Peroxisome proliferator activated receptors (PPARs) are DNA-binding nuclear hormone receptors that are upregulated in response to high fat diets. PPARs are structurally related to the type II nuclear receptors, including the thyroid hormone receptors (TRs). To investigate if PPARs modulate TR-mediated terminal differe...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2005.04.031
更新日期:2005-09-01 00:00:00
abstract::Osteocalcin, the gamma-carboxyglutamic acid-containing protein, which in most species is the predominant noncollagenous protein of bone and dentin, has been postulated to play roles in bone formation and remodeling. Recently, genetic studies showed that osteocalcin acts as an inhibitor of osteoblast function. Based on...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/s8756-3282(98)00092-1
更新日期:1998-09-01 00:00:00
abstract::Glucocorticoids (GC) are used for the treatment of a wide spectrum of diseases because of their potent anti-inflammatory and immunosuppressive effects, and they are serious and common causes of secondary osteoporosis. Administration of intermittent parathyroid hormone (PTH) may induce formation of new bone and may cou...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2006.01.142
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVES:Osteoarthritis (OA) is a disease of the whole joint characterized by cartilage loss and subchondral bone remodeling. The role of microcracks in cartilage integrity and subchondral bone homeostasis is not fully understood. The main goal of this work was to evaluate microcrack density in both calcified cartila...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2019.03.011
更新日期:2019-06-01 00:00:00
abstract::A more accurate understanding of the molecular mechanisms and signaling pathways underpinning human mesenchymal stem cell (MSC) plasticity and differentiation properties is pivotal for accomplishing solid and diligent translation of MSC-based experimental therapeutics and clinical trials to broad clinical practice. In...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2017.10.014
更新日期:2018-01-01 00:00:00
abstract::Fibroblast growth factor 23 (FGF23) is a potent regulator of Pi and 1,25-(OH)(2)D homeostasis. Early postpartum infants show intriguing changes in serum levels of Ca, Pi, PTH and 1,25-(OH)(2)D. However, the role of FGF23 in the early neonatal mineral metabolism has not been clarified. In order to evaluate the signific...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2010.05.024
更新日期:2010-08-01 00:00:00
abstract::Investigators and clinicians use bone histomorphometry data from iliac bone biopsies to study bone abnormalities in diseased patients, and to understand the safety and effectiveness of pharmaceutical interventions. This requires access to a high quality normal data-set to be used for comparisons, a resource that has n...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2018.03.019
更新日期:2018-06-01 00:00:00
abstract:INTRODUCTION:Teriparatide is a bone formation agent that increases bone turnover and mass, resulting in an increase in bone strength and a decrease in fracture risk. METHODS:The primary purpose of this analysis was to evaluate the association between pretreatment bone turnover marker (BTM) concentrations and the absol...
journal_title:Bone
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.bone.2006.02.003
更新日期:2006-08-01 00:00:00
abstract::This is a cross-sectional study of spine and hip bone density (BMD) in 124 female athletes, aged 16-68 years, who trained for at least 3 hs/week. The aim was to document the effects of competitive running on BMD in women over a broad age range. Thirty-three subjects, aged <35 years, were currently oligo- or amenorrhei...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/s8756-3282(00)00274-x
更新日期:2000-06-01 00:00:00
abstract::Bone mineral density is under strong genetic control and polymorphisms of the vitamin D receptor (VDR) have been suggested to account for some of the genetic variation in bone mass. However, the relationship between VDR polymorphisms and bone density is controversial and has not been confirmed by all workers. Since th...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/8756-3282(95)00483-1
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the morphological changes that take place in the subchondral bone and calcified cartilage zone in the experimental anterior cruciate ligament (ACL) dog model of osteoarthritis (OA) and analyze concomitant changes in the level of MMP-13 and cathepsin K, as well as examine the therapeutic effects of...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2003.11.021
更新日期:2004-03-01 00:00:00
abstract:PURPOSE:Low trauma rib fracture (hereinafter, rib fracture) is common in the elderly, but its risk factors and mortality consequence are rarely studied. We sought to define the epidemiology of rib fracture and the association between rib fracture and postfracture mortality. METHODS:The study was part of the Dubbo Oste...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2018.08.016
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:While the importance of cortical structure quantification is increasingly underscored by recent literature, conventional analysis techniques obscure potentially important regional variations in cortical structure. The objective of this study was to characterize the spatial variability in cortical geometry and...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2012.10.031
更新日期:2013-02-01 00:00:00
abstract:INTRODUCTION:Sex steroids have distinct effects on bone growth and maintenance in men and women, mediated through their respective steroid receptors. Though most evidence is derived from animal studies, several concepts have been confirmed in humans by detection of specific mutations. In this report we describe changes...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2009.04.198
更新日期:2009-08-01 00:00:00
abstract::Oral glucocorticoids (GC) preserve muscle strength and prolong walking in boys with Duchenne muscular dystrophy (DMD). Although vertebral fractures have been reported in boys taking GC, fracture rates for different GC regimes have not been investigated. The aim of this pragmatic longitudinal study was to compare growt...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2018.07.019
更新日期:2018-11-01 00:00:00
abstract::The incretin hormones glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide 1 (GLP-1) are well known for their insulinotropic effects and they are thought to affect bone homeostasis as mediators in the so-called entero-osseous axis. We examined the contributions of endogenous GIP and GLP-1, resp...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2020.115553
更新日期:2020-11-01 00:00:00
abstract::The magnetic resonance-guided focused ultrasound (MRgFUS) system uses MR imaging for real-time aiming of thermal ablation of bone and soft tissue tumors. Past clinical studies showed no increase in fracture rate after MRgFUS treatment. The purpose of this study was to determine the effect of MRgFUS treatment on mechan...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2013.06.032
更新日期:2013-11-01 00:00:00
abstract::We previously reported that osteoclast formation in vitro, by coculture of mouse bone marrow and primary osteoblastic cells, occurs in two phases: proliferation of osteoclast progenitors followed by terminal differentiation into mature osteoclasts. Using this coculture system, we examined the effects of c-fos antisens...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/8756-3282(96)00076-2
更新日期:1996-06-01 00:00:00
abstract::Measurement of bone mineral density (BMD) is the clinical gold standard in cases of compromised skeletal integrity, such as with osteoporosis. While BMD is a useful measurement to index skeletal health, it is also limited since it cannot directly assess any mechanical properties. The ability to directly assess mechani...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2015.01.019
更新日期:2015-06-01 00:00:00
abstract::Hypophosphatasia (HPP) is caused by loss-of-function mutation(s) within the gene TNSALP that encodes the "tissue-nonspecific" isoenzyme of alkaline phosphatase (TNSALP). In HPP, inorganic pyrophosphate, an inhibitor of mineralization and substrate for TNSALP, accumulates extracellularly often leading to rickets or ost...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2015.02.022
更新日期:2015-06-01 00:00:00
abstract::Osteogenesis imperfecta (OI) is a heritable collagen-related bone dysplasia, characterized by brittle bones with increased fracture risk that presents most severely in children. Anti-resorptive bisphosphonates are frequently used to treat pediatric OI and controlled clinical trials have shown that bisphosphonate thera...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2014.10.012
更新日期:2015-02-01 00:00:00
abstract::Genetic heterogeneity, high burden and the paucity of genetic testing for rare diseases challenge genomic healthcare for these disorders in India. Here we report our experience over the past decade, of establishing the genomic evaluation of skeletal dysplasia at a tertiary university hospital in India. Research or cli...
journal_title:Bone
pub_type: 杂志文章
doi:10.1016/j.bone.2018.10.026
更新日期:2019-03-01 00:00:00