Abstract：
:In adult human bone, fluoride uptake is accompanied by an increase in apatite crystal size. This increase, however, is not isotropic but is restricted primarily to growth in width and/or thickness, with no measurable change in length. In the present study, seeded growth experiments were conducted in vitro to determine whether this anisotropic effect is physicochemical in origin, i.e., a direct result of F- selectively enhancing lateral crystal growth, or is an indirect consequence of F--induced alterations in cellular function and matrix development. The growth reactions were maintained at 37 degrees C under physiologic-like solution conditions (1.33 mmol/liter Ca2+, 1.0 mmol/liter total phosphate, 0 or 26 mmol/liter carbonate, 270 mmol/kg osmolality, pH 7.4) using constant-composition methods. When new accretions accumulated to three times the initial seed mass, the solids were collected and net crystal growth was assessed by X-ray diffraction line broadening analysis. The X-ray results revealed that the carbonate constituent in our physiologic-like solutions promoted the proliferation of new crystals at the expense of further growth of the seed apatite. Solution F- concentrations of approximately 2 micromol/liter partially offset the repressive effect that carbonate had on primary crystal growth. Moreover, F- stimulated seed crystal growth in the same anisotropic manner as had been observed for adult human bone apatite, a finding that suggests that the latter growth in vivo was the consequence, in part, of direct F--mineral interactions.
journal_name
Calcif Tissue Intjournal_title
Calcified tissue internationalauthors
Eanes ED,Hailer AWdoi
10.1007/s002239900522subject
Has Abstractpub_date
1998-09-01 00:00:00pages
250-7issue
3eissn
0171-967Xissn
1432-0827journal_volume
63pub_type
杂志文章abstract：:The purpose of this study was to determine the efficacy of using bone mineral measurements of the calcaneus to evaluate osteoporosis. Dual energy X-ray absorptiometry (DXA) of the calcaneus was compared with posteroanterior lumbar absorptiometry (DXA) and vertebral quantitative computed tomography (QCT) measurements i...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF00298738
更新日期：1995-01-01 00:00:00
abstract：:Psoriatic arthritis (PsA) is an inflammatory rheumatic disorder that occurs in patients with psoriasis and predominantly affects musculoskeletal structures, skin, and nails. The etiology of PsA is not well understood but evidence supports an interplay of genetic, immunologic, and environmental factors which promote pa...
journal_title：Calcified tissue international
pub_type： 杂志文章,评审
doi：10.1007/s00223-017-0380-2
更新日期：2018-05-01 00:00:00
abstract：:Lumbar spine bone mass and density were measured with Dual photon absorptiometry (DPA) in 60 patients with crush fractures and 60 age-matched normal women. Short-term reproducibility of bone mineral density (BMD) was 1.3% in normal women and 2.5% in osteoporotic women; long-term reproducibility in normal women was 2.2...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02553274
更新日期：1988-12-01 00:00:00
abstract：:The aim of this study was to investigate the relation between birth weight and calcaneal bone stiffness in a large sample of Belgian, healthy, preadolescent children. Participants were 827 children (3.6-11.2 years, 51.6 % boys) from the Belgian cohort of the IDEFICS study. Birth weight was obtained using a parental qu...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-012-9636-z
更新日期：2012-10-01 00:00:00
abstract：:Teriparatide (TPTD) is the most widely used anabolic agent in the treatment of patients with osteoporosis although its use is restricted in many countries. A recent randomised trial confirmed that TPTD was superior to risedronate at preventing vertebral fractures over a 2-year period. There is limited information on t...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-019-00563-8
更新日期：2019-08-01 00:00:00
abstract：:Total fat mass plays a significant role in determining bone mass, but the specific role of central adiposity independent of total fat mass has not been widely studied. Prepubertal (Tanner 1) children (n = 181; 65 boys, 116 girls, 7.8 +/- 1.5 years), including 99 Caucasians and 82 African Americans from Birmingham, Ala...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-006-0116-1
更新日期：2006-12-01 00:00:00
abstract：:Low-grade inflammation negatively affects bone. Resveratrol is a natural compound proven to possess both anti-inflammatory and bone protective properties. However, it is uncertain if the bone effects are mediated though anti-inflammatory effects. Firstly, we investigated if resveratrol affects proliferation and differ...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-016-0130-x
更新日期：2016-08-01 00:00:00
abstract：:The bone mineral status of 17 girls with Turner's syndrome was evaluated by single photon absorptiometry. Bone mineral content (BMC) was 25.4% below that predicted by normalization for age, sex, height, weight, and bone width. Only 25% of this demineralization could be attributed to delayed skeletal maturation. Bones ...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02411296
更新日期：1982-01-01 00:00:00
abstract：:The current studies were intended to determine whether the anabolic effects of calcitonin (CT) on human osteoblast-line cells were (1) unique to osteosarcoma cells or also evident in osteoblast-line cells derived from normal human bone; and/or (2) associated with effects on several insulin-like growth factor (IGF) sys...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002230001112
更新日期：2000-09-01 00:00:00
abstract：:Icariin, the main constituent of Herba Epimedii, appears to be a promising alternative to classic drugs used to treat osteoporosis. However, the detailed molecular mechanisms of its action and the role of icariin in the cross-talk between osteoblasts and adipocytes remain unclear. The present study was designed to inv...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-016-0138-2
更新日期：2016-08-01 00:00:00
abstract：:Sclerostin and parathyroid hormones are strong negative and positive regulators of bone formation, respectively. The anabolic response induced by intermittent (iPTH) treatment is sclerostin status-dependent. However, the interaction between sclerostin and iPTH at the matrix level is unknown. The goal of the current st...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-015-0074-6
更新日期：2016-02-01 00:00:00
abstract：:Osteoarthritis and sarcopenia are the most frequently described musculoskeletal disorders in older persons but the intertwining of these conditions and of their functional and cellular causes is complex. This narrative review aims to identify the links between osteoarthritis and sarcopenia described 1-in clinical stud...
journal_title：Calcified tissue international
pub_type： 杂志文章,评审
doi：10.1007/s00223-020-00703-5
更新日期：2020-09-01 00:00:00
abstract：:Dickkopf-1 (DKK1) and sclerostin are antagonists of the Wnt/β-catenin pathway and decreased expression of either results in increased bone formation and mass. As both affect the same signaling pathway, we aimed to elucidate the redundancy and/or compensation of sclerostin and DKK1. Weekly sclerostin antibody (Scl-Ab) ...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-018-0420-6
更新日期：2018-09-01 00:00:00
abstract：:Bone tissue is a source of growth factors; among them, insulinlike growth factor I (IGF-I) is probably an important local regulator of bone formation. This study has been carried out in order to assess the effects of natural menopause on plasma concentrations of IGF-I in the first 6 years after the cessation of gonada...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF01352006
更新日期：1993-07-01 00:00:00
abstract：:We examined the osteogenesis process in transforming growth factor beta 1 (TGF-beta 1)-treated neonatal and adult rats, aiming to investigate the age difference in the effect of TGF-beta 1 on mesenchymal cell differentiation. Recombinant human (rh) TGF-beta 1 (20 and 200 ng) was injected onto the outer periostea of th...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF01321890
更新日期：1993-08-01 00:00:00
abstract：:Several phosphoprotein preparations (phosvitin, rat incisor and fetal calf molar dentin phosphoproteins) all inhibit apatite growth/replication from pre-existing crystal seeds in metastable solutions. Two stages of the crystal growth process were inhibited by these phosphoproteins. First an initial lag period was indu...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02407188
更新日期：1980-01-01 00:00:00
abstract：:The acute-phase response (APR) is frequently observed in patients treated with intravenous (iv) zoledronate (ZOL). We investigated whether a short course of rosuvastatin (ROSU) could attenuate the ZOL--induced APR through blocking the mevalonate pathway at a proximal level. Twenty-eight osteoporotic postmenopausal wom...
journal_title：Calcified tissue international
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00223-011-9468-2
更新日期：2011-05-01 00:00:00
abstract：:Studies of the effect of parathyroidectomy (PTX) on bone turnover in patients with the combination of primary hyperparathyroidism (PHPT) and Paget's disease (PD) are largely limited to case reports. The etiology of the combination is disputed. We report 30 patients and their biochemical (n = 17) and histomorphometric ...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900728
更新日期：1999-12-01 00:00:00
abstract：:An experimental fracture model was used to assess bone mineral density at the fracture site by peripheral computed tomography and to compare the model with biomechanical, histological, and radiographic methods for the quantification of the fracture repair process. Transverse osteotomies in the mid-diaphysis of 28 tibi...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900213
更新日期：1997-02-01 00:00:00
abstract：:The increased uptake of bone-seeking radionuclides following a fracture has been stated to be due to an increase in bone blood flow, resulting in an increase in capillary surface area available for exchange. This paper examines the relationship between the maximum instantaneous extraction of 99mTc-MDP and blood flow i...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02405085
更新日期：1983-07-01 00:00:00
abstract：:As tobacco smoking has been identified as a risk factor in the development of osteoporosis, possible deleterious effects of nicotine inhalation on bone mineral density (BMD) and mechanical properties of the femur in female rats were studied. Female Sprague Dawley rats were exposed to nicotine vapour 20 hours a day 5 d...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900692
更新日期：1999-09-01 00:00:00
abstract：:Tartrate resistant acid phosphatase (TRAP) has been proposed as a new biochemical marker for bone resorption. We have compared this new marker, TRAP, with the classical biochemical markers of bone remodelling, serum alkaline phosphatase (sAP), serum osteocalcin (sBGP), and with the urinary hydroxyproline/creatinine ra...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02555896
更新日期：1991-07-01 00:00:00
abstract：:We describe here the activity of a novel selective estrogen receptor modulator, SP500263. When given to adult ovariectomized (OVX) rats for 28 days at doses of 0.3, 1, or 3 mg/kg/day, we found that SP500263 partially protected against OVX-induced loss of bone mineral content in the distal ends of femurs and in the who...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-002-1029-2
更新日期：2003-06-01 00:00:00
abstract：:Forty 5-week-old rats were randomly divided into 1 control group given a normal diet and water low in fluoride (0.026 mM/1) and experimental group receiving the same basic diet and a fluoride supplement of 2.6 mMol/l in the drinking water. After 30 weeks, half of the fluoride-supplemented and half of the nonsupplement...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02405089
更新日期：1983-07-01 00:00:00
abstract：:Several rare inherited disorders have been described that show phenotypic overlap with Paget's disease of bone (PDB) and in which PDB is a component of a multisystem disorder affecting muscle and the central nervous system. These conditions are the subject of this review article. Insertion mutations within exon 1 of t...
journal_title：Calcified tissue international
pub_type： 杂志文章,评审
doi：10.1007/s00223-019-00520-5
更新日期：2019-05-01 00:00:00
abstract：:The severest long-term complications of orthopedic joint-prostheses are associated with loosening of the implant-bone interface, due to adverse reactions in bone and subsequent weakening of the connection between the two materials. Mechanical stresses, caused by joint loading, play a key role in the adaption of interf...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02406143
更新日期：1984-01-01 00:00:00
abstract：:Long-term use of hydrochlorothiazide (HCTZ), a common diuretic agent for hypertension, has been associated with increased bone density and reduced hip fracture rates in patients. In this study, we sought to examine whether HCTZ has an anabolic effect on the proliferation of human osteoblasts (derived from either verte...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF00369219
更新日期：1996-12-01 00:00:00
abstract：:Raman spectroscopy and imaging are known to be valuable tools for the analysis of bone, the determination of protein secondary structure, and the study of the composition of crystalline materials. We have utilized all of these attributes to examine how mechanical loading and the resulting deformation affects bone ultr...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-002-1039-0
更新日期：2003-02-01 00:00:00
abstract：:The objective of this study was to compare the bone mineral density (BMD) of men with Down syndrome (DS) to otherwise mentally retarded (MR) men and to investigate whether leg muscle strength of these patients is related to BMD. Two groups with MR (with and without DS) participated in the study, having met the followi...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002230010035
更新日期：2000-03-01 00:00:00
abstract：:Diets with a high saturated fat content can produce deleterious effects on the absorption of dietary calcium and consequently an adverse effect on bone mineralization in growing animals. Hence dietary fat may have long-term consequences for skeletal health and skeletal pathologies such as osteoporosis. Whether a diet ...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900492
更新日期：1998-07-01 00:00:00
