Abstract：
:The mineral of cortical bones has been studied in newborn, growing, and adult rats and in the calf and cow, using X-ray diffraction and infrared spectroscopy during the thermal decomposition of bones and by microassay of carbonate. The mineral of all the bone samples, regardless of species or age, was found to be a calcium-deficient apatite containing both CO3(2-) and HPCO4(2-) ions in the crystal lattice. The crystal size, Ca/P molar ratio, and CO3(2-) ion content of cortical bone all increased with increasing age in both the rat and the bovine. The Ca/P ratio varied from 1.51 in newborn rats to 1.69 in adults but remained that of Ca-deficient apatite even though its value was close to that of stoichiometric hydroxyapatite (1.67). Both the carbonate ion and the hydrogenophosphate ion contents varied from one animal species to another and with age within a given species. Maturation was correlated with an increase in carbonate ion content, which replaced the HPO4(2-) ions. In contrast, the calcium ion number per unit formula did not vary during maturation. Cortical bone mineral, in both species, regardless of age, can therefore be represented by the following formula: Ca8.3 (PO4)4.3 (CO3)x(HPO4)y(OH)0.3; y decreased and x increased with increasing age, (x + y) being constant, equal to 1.7.
journal_name
Calcif Tissue Intjournal_title
Calcified tissue internationalauthors
Legros R,Balmain N,Bonel Gdoi
10.1007/BF02563793subject
Has Abstractpub_date
1987-09-01 00:00:00pages
137-44issue
3eissn
0171-967Xissn
1432-0827journal_volume
41pub_type
杂志文章abstract：:Osteoclasts are large, multinucleated, terminally differentiated cells formed by the fusion of mononuclear hemopoietic precursors. Their function is the resorption of bone, which is an essential part of the growth, modeling and remodeling of the skeleton. Though some osteoclast differentiation factors have recently be...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-002-2098-y
更新日期：2003-10-01 00:00:00
abstract：:Connective tissue diseases, including osteogenesis imperfecta (OI) and Ehlers-Danlos syndrome (EDS), exhibit a high degree of clinical and genetic heterogeneity. We report two sisters with blue sclerae, joint hypermobility and hearing loss. Whole-exome sequencing identified two compound heterozygous ZNF469 loss-of-fun...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-020-00721-3
更新日期：2020-09-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02411281
更新日期：1982-09-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-014-9878-z
更新日期：2014-08-01 00:00:00
abstract：:The primary aim of the project was to determine the combined effect of whole-body electromyostimulation (WB-EMS) and protein supplements on local and overall muscle/fat distribution in older man with sarcopenic obesity (SO). Community-dwelling (cdw) men ≥ 70 years with SO were randomly allocated to a WB-EMS and protei...
journal_title：Calcified tissue international
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00223-018-0424-2
更新日期：2018-09-01 00:00:00
abstract：:Undesirable changes in health-related parameters are thought to occur in retiring female athletes, but this has not been examined in longitudinal studies. The purpose of this study was to examine longitudinal changes in bone mineral density (BMD), body composition, and dietary intake in gymnasts and controls. Nonathle...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-004-0228-4
更新日期：2004-12-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02405095
更新日期：1983-07-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900653
更新日期：1999-07-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900675
更新日期：1999-08-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章,评审
doi：10.1007/s00223-013-9749-z
更新日期：2013-08-01 00:00:00
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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
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journal_title：Calcified tissue international
pub_type： 杂志文章,评审
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更新日期：2020-02-13 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02554833
更新日期：1985-03-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-020-00770-8
更新日期：2020-10-17 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章,多中心研究
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更新日期：2011-03-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02678144
更新日期：2001-02-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02405315
更新日期：1984-03-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s00223-001-1110-2
更新日期：2002-09-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章,评审
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更新日期：2019-05-01 00:00:00
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journal_title：Calcified tissue international
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更新日期：2009-11-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章,评审
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更新日期：2015-09-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF00297297
更新日期：1992-01-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
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更新日期：2019-11-01 00:00:00
abstract：:Octacalcium phosphate (Ca8H2(PO4)6 . 5H2O) is considered to be precursor in the formation of apatite in bones and teeth; a crucial step for incorporation of impurities appears to occur during its hydrolysis. The present study examines the role that octacalcium phosphate plays in the process of incorporation of carbona...
journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02408521
更新日期：1980-01-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/s002239900148
更新日期：1996-11-01 00:00:00
abstract：:Identifying persons with a high risk of osteoporotic fractures remains a challenge. DXA uptake in women with elevated risk of osteoporosis seems to be depending on distance to scanning facilities. This study aimed to investigate the ability of a small portable scanner in identifying women with reduced bone mineral den...
journal_title：Calcified tissue international
pub_type： 杂志文章,随机对照试验
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更新日期：2016-03-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF00296676
更新日期：1992-12-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02557834
更新日期：1985-09-01 00:00:00
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journal_title：Calcified tissue international
pub_type： 杂志文章
doi：10.1007/BF02405386
更新日期：1984-12-01 00:00:00
abstract：:Using both low microwave power and weak magnetic field modulation, we have shown that the asymmetric signal arising in X-irradiated tooth enamel as well as in A-type carbonated apatite exposed to X-rays or to excited oxygen has an orthorhombic character and must be attributed to CO2-. Effectively, the mean values foun...
journal_title：Calcified tissue international
pub_type： 杂志文章
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更新日期：1981-01-01 00:00:00
