abstract：:The present study further characterizes an extract from immature, human tooth apicies from which an intact dentin phosphoprotein has been identified. Third molar apicies from developing roots were decalcified in 10% EDTA until Ca2+ was undetectable in the decalcifying solution. The crude extract was run on 7.5% SDS-PA...

journal_title：Calcified tissue international

authors： Chang SR,Chiego D Jr,Clarkson BH

更新日期：1996-09-01 00:00:00

abstract：:There is considerable interest in determining whether hypergravity can be used as a countermeasure for microgravity-induced bone loss. This study was conducted on 20 immature male rats in order to investigate possible elastic adaptations of cortical bone in rapidly growing rats exposed to chronic hypergravity. Ten rat...

journal_title：Calcified tissue international

authors： Kohles SS,Bowers JR,Vailas AC,Vanderby R Jr

更新日期：1996-09-01 00:00:00

abstract：:We have previously noted that a relatively large load (150 N) is required to induce a strain on the cortex of rat vertebrae similar to that induced on weight-bearing bones by normal mechanical usage. It seems unlikely that the musculature of the tail normally imposes loads of this magnitude, and this suggests that the...

journal_title：Calcified tissue international

authors： Chow JW,Jagger CJ,Chambers TJ

更新日期：1996-08-01 00:00:00

abstract：:The goals of internal fixation are an accurate reduction and stable fixation in the presence of adequate bony vascularity. This can be achieved by a variety of means including plate fixation. A certain amount of periosteal stripping is necessary for proper open reduction of a fracture and for proper plate application....

journal_title：Calcified tissue international

authors： Kowalski MJ,Schemitsch EH,Kregor PJ,Senft D,Swiontkowski MF

更新日期：1996-07-01 00:00:00

abstract：:The primary objective of the present study was to evaluate the impact of physical activity and muscle strength on bone mineral density (BMD) of the tuberositas tibiae in adolescent boys. Two groups with different exercise levels were compared. The high activity group consisted of 20 subjects (age 15.9 +/- 0.3) from a ...

journal_title：Calcified tissue international

authors： Nordström P,Nordström G,Thorsen K,Lorentzon R

更新日期：1996-06-01 00:00:00

abstract：:The effects of a series of novel phosphonates on the kinetics of mineral development in an ionophore-primed 7:2:1 phosphatidylcholine (PC): dicetylphosphate (DCP): cholesterol (Chol) liposomal model system are reported. When present at 2.5 micromol/liter or 25 micromol/liter concentrations in the solution surrounding ...

journal_title：Calcified tissue international

authors： Skrtic D,Eidelman N,Golomb G,Breuer E,Eanes ED

更新日期：1996-05-01 00:00:00

abstract：:Although treatment with intranasal salmon calcitonin (sCT) has been shown to effectively inhibit postmenopausal bone loss, there is still controversy over both timing and the duration of its application. In an open prospective study, we therefore assessed the effect of shortterm intranasal sCT on postmenopausal bone t...

journal_title：Calcified tissue international

authors： Kraenzlin ME,Seibel MJ,Trechsel U,Boerlin V,Azria M,Kraenzlin CA,Haas HG

更新日期：1996-04-01 00:00:00

abstract：:Correlated studies were performed with light and electron microscopy, and backscattered electron image in conjunction with X-ray microanalysis, of lanthanum-incubated epiphyseal cartilage of the young rat. The hall-mark of this procedure is the appearance of LaP electron-dense deposits (not present in control sections...

journal_title：Calcified tissue international

authors： Gomez S,Lopez-Cepero JM,Silvestrini G,Bonucci E

更新日期：1996-04-01 00:00:00

abstract：:A morphological and electron microscopic study of bone from patients with osteogenesis imperfecta (OI) has been performed. Bone from OI patients from various anatomical sites has been compared with that from normal, age-, site-, and sex-matched controls. The morphology of OI bone appeared variable among patients and s...

journal_title：Calcified tissue international

authors： Cassella JP,Stamp TC,Ali SY

更新日期：1996-03-01 00:00:00

abstract：:Extracellular ATP, and to a lesser extent adenosine, an ATP metabolite, stimulated cell proliferation in osteoblast-like cells (MC3T3-E1). ATP increased cytosolic Ca2+ due to Ca2+ mobilization from intracellular storage in the same concentration range of the nucleotide as that effective for DNA synthesis, suggesting t...

journal_title：Calcified tissue international

authors： Shimegi S

更新日期：1996-02-01 00:00:00

abstract：:Raf-1, the product of proto-oncogene c-raf-1, has key roles in the signal transduction pathways within the cell. The molecular mechanisms of tooth development in the mouse embryo are not known in detail. We examined the expression of Raf-1 during subsequent tooth development by immunohistochemical analysis. In mouse e...

journal_title：Calcified tissue international

authors： Sunohara M,Tanzawa H,Kaneko Y,Fuse A,Sato K

更新日期：1996-01-01 00:00:00

abstract：:We have examined the effect of the anti-tumor compound taxol, on osteoclastic bone resorption. In the bone slice assay, taxol (0.1-0.001 microM) dose-dependently inhibited bone resorption with an IC50 of 0.08 microM. Osteoclast survival on bone slices was unaffected by 0.01-1 microM taxol, but 10 microM was cytotoxic....

journal_title：Calcified tissue international

authors： Hall TJ,Jeker H,Schaueblin M

更新日期：1995-12-01 00:00:00

abstract：:Inorganic phosphate (P(i)) can regulate the level of skeletal alkaline phosphatase (ALP) activity in human osteoblast-like cells, but not by means of changes in transcription or release from the cell surface. The current studies were intended to determine whether (1) P(i) affected the inactivation of ALP activity in h...

journal_title：Calcified tissue international

authors： Farley JR

更新日期：1995-11-01 00:00:00

abstract：:To assess the usefulness of the measurement of the os calcis by ultrasound, a method that probably reflects bone quality as well as density, we have studied 54 women with hip fracture of the proximal femur and a control group. Ultrasound evaluation of the os calcis [broadband ultrasound attenuation (BUA), speed of the...

journal_title：Calcified tissue international

authors： Mautalen C,Vega E,González D,Carrilero P,Otaño A,Silberman F

更新日期：1995-09-01 00:00:00

abstract：:Whether the decrease of zinc content in the femoral-metaphyseal tissues of rats with skeletal unloading is involved in the alteration of bone metabolism was investigated. Skeletal unloading was designed using the model of hindlimb suspension in rats. Animals were fed for 4 days with the unloading. The metaphyseal zinc...

journal_title：Calcified tissue international

authors： Yamaguchi M,Ehara Y

更新日期：1995-09-01 00:00:00

abstract：:To assess whether vertebral fractures are associated with osteopenia in chronic alcoholic patients, a transversal study was carried out in 76 chronic alcoholic males and 62 age-matched healthy males. Lumbar bone mineral density (BMD) by dual photon absorptiometry and spinal chest X-ray films were done in all patients....

journal_title：Calcified tissue international

authors： Peris P,Guañabens N,Parés A,Pons F,del Rio L,Monegal A,Surís X,Caballería J,Rodés J,Muñoz-Gómez J

更新日期：1995-08-01 00:00:00

abstract：:To determine the relationships among nutrients intake, bone mass, and bone turnover in women we have investigated these issues in a population-based, cross-sectional, observational study in one county in central Sweden. A total of 175 women aged 28-74 at entry to the study were included. Dietary assessment was made by...

journal_title：Calcified tissue international

authors： Michaëlsson K,Holmberg L,Mallmin H,Wolk A,Bergström R,Ljunghall S

更新日期：1995-08-01 00:00:00

abstract：:Ultrasound measurements of the calcaneus are related to incidence of osteoporotic fracture. Such measurements are generally made at fixed coordinates relative to a footplate. This study compares measurements at an anatomically located region of interest (ROIanat) and at fixed coordinates (ROIfixed), with bone mineral ...

journal_title：Calcified tissue international

authors： Brooke-Wavell K,Jones PR,Pye DW

更新日期：1995-07-01 00:00:00

abstract：:To define the quantitative aspects of ossification of human fetal spine, we performed a high resolution densitometric study by lateral and postero-anterior scanning of five fetal spines (18-36 weeks of conceptual age) and one spine of a 4-month-old infant. The data were plotted against developmental age for each spine...

journal_title：Calcified tissue international

authors： Panattoni GL,Sciolla A,Isaia GC

更新日期：1995-07-01 00:00:00

abstract：:The values of in vivo T1 relaxation time (T1) of phosphorus atoms of wrist bone have been measured by phosphorus-31 magnetic resonance spectroscopy (MRS) in 65 menopausal women separated into three groups: (1) age-matched women without any paraclinical or clinical osteoporosis; (2) patients with paraclinical osteoporo...

journal_title：Calcified tissue international

authors： Confort-Gouny S,Mattéi JP,Vion-Dury J,Roux H,Bisset JP,Cozzone PJ

更新日期：1995-06-01 00:00:00

abstract：:The protein components of biomineralized structures (matrix proteins) are believed to modulate crystal nucleation and growth, and thereby influence the shape and strength of the final structure. The chicken eggshell contains a complex array of distinct matrix proteins. The most abundant of these was purified to homoge...

journal_title：Calcified tissue international

authors： Hincke MT,Tsang CP,Courtney M,Hill V,Narbaitz R

更新日期：1995-06-01 00:00:00

abstract：:We studied the most complete skeletons found in an excavation from the 14th and 15th century in central Stockholm. One hundred eighty-seven were from men and 156 from women: 241 individuals were estimated to be between 20 and 39 and 102 between 40 and 59 years old at death. We examined the bones radiographically and b...

journal_title：Calcified tissue international

authors： Ekenman I,Eriksson SA,Lindgren JU

更新日期：1995-05-01 00:00:00

abstract：:The aim of this work was to explore the reduction of fluoride concentrations in the skeleton after stopping experimental fluoride administration. Fluoride was administered to the rats at varying doses (0, 50, 100 ppm in drinking water) and for different lengths of time (4, 13, 25 weeks). A series of fluoride concentra...

journal_title：Calcified tissue international

authors： Li J,Nakagaki H,Kato K,Tsuboi S,Kato S,Morita I,Ohno N,Kameyama Y,Chen R,Robinson C

更新日期：1995-04-01 00:00:00

abstract：:Seventy-two postmenopausal osteoporotic women having more than one nontraumatic vertebral crush fracture were studied. Thirty-six of them, aged 68.8 +/- 1.2 years (18 +/- 4 YSM-years since menopause), were treated with 100 IU/day of salmon calcitonin i.m. plus 500 mg of elemental calcium for 10 days each month. The re...

journal_title：Calcified tissue international

authors： Rico H,Revilla M,Hernández ER,Villa LF,Alvarez de Buergo M

更新日期：1995-03-01 00:00:00

abstract：:The effects of 5, 10, and 20% dietary xylitol supplementations on the resorption of bone were studied. The resorption was measured by the urinary excretion of [3H] radioactivity from [3H]tetracycline-prelabeled rats. The 10 and 20% oral xylitol administrations caused a significant decrease in the excretion of [3H] as ...

journal_title：Calcified tissue international

authors： Mattila P,Svanberg M,Knuuttila M

更新日期：1995-03-01 00:00:00

abstract：:Aging bone shows a progressive decline in mass and strength. Previous studies have suggested that bone marrow stem cells are reduced with aging and that this could be responsible, in part, for age-associated bone deficits. We measured the number of osteoprogenitor cells present in the bone marrow from adult and aged r...

journal_title：Calcified tissue international

authors： Quarto R,Thomas D,Liang CT

更新日期：1995-02-01 00:00:00

abstract：:We assessed the bone mineral density (BMD) of 16 matched sets of cadaveric proximal femurs and feet using dual-energy x-ray absorptiometry (DXA). We also estimated the femoral neck length from the DXA scans. Quantitative ultrasound densitometry was used to measure the velocity of sound and broadband ultrasound attenua...

journal_title：Calcified tissue international

authors： Bouxsein ML,Courtney AC,Hayes WC

更新日期：1995-02-01 00:00:00

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

authors： Laval-Jeantet AM,Bergot C,Williams M,Davidson K,Laval-Jeantet M

更新日期：1995-01-01 00:00:00

abstract：:The developing mandibular condylar growth center consists of a number of histologically distinct cell types. There is an increase in cell volume that takes place from the condylar surface layer through the center of ossification, resulting in a disorganized, irregular cellular pattern. Consequently, the isolation and ...

journal_title：Calcified tissue international

authors： Landesberg R,Proctor RL,Rosier RN,Puzas JE

更新日期：1995-01-01 00:00:00

abstract：:Urinary pyridinoline (pyr) and deoxypyridinoline (dpyr) are new markers for bone resorption, and serum osteocalcin reportedly indicates osteoblastic activity. Recently, a new ultrasound bone densitometer instrument has been developed that measures ultrasonic properties of the os calcis, namely, the speed of sound (SOS...

journal_title：Calcified tissue international

authors： Kawana K,Kushida K,Takahashi M,Ohishi T,Denda M,Yamazaki K,Inoue T

更新日期：1994-12-01 00:00:00

abstract：:Binding sites for wheat germ agglutinin (WGA)-lectin have been shown to become revealed in the demineralized resorption lacunae that osteoclasts excavate on bone substrate. Peroxidase-conjugated WGA-lectin, which binds to bone matrix glycoconjugates and proteoglycans, was used in pit formation assays to assess the act...

journal_title：Calcified tissue international

authors： Selander K,Lehenkari P,Väänänen HK

更新日期：1994-11-01 00:00:00

abstract：:The metacarpal bone mineral density (BMD) and metacarpal index (MCI) of the second metacarpal bone were measured by computed X-ray densitometry (CXD) (Teijin Ltd., Tokyo), which we have established with the development of microdensitometry of radiographs. In this study, we evaluated the basic attributes of this CXD me...

journal_title：Calcified tissue international

authors： Matsumoto C,Kushida K,Yamazaki K,Imose K,Inoue T

更新日期：1994-11-01 00:00:00

abstract：:It has long been thought that collagen fibers within the bone matrix are deposited in an aligned pattern that channels mineral growth. If this model of bone structure is correct, both organic and inorganic phases of bone should have similar elastic anisotropy. Using an acoustic microscope, we measured longitudinal and...

journal_title：Calcified tissue international

authors： Hasegawa K,Turner CH,Burr DB

更新日期：1994-11-01 00:00:00

abstract：:The goal of this study was to find out if bone can recover after long-term administration of bisphosphonate. Disodium pamidronate (APD) was given orally by gavage to mature beagle dogs at doses of 0, 2.5, 12.5, and 25 mg/kg/day for 1 year (0.1% concentration) and the animals were allowed to recover for another year. A...

journal_title：Calcified tissue international

authors： Grynpas MD,Kasra M,Dumitriu M,Nespeca R,Very JM,Mertz BP

更新日期：1994-10-01 00:00:00

abstract：:A liposome-centered endogenous precipitation method was used to investigate the effect of ultrafilterable fragments from the enzymatic digestion of rat chondrosarcoma aggrecan on the formation of insoluble calcium phosphate salts in buffered solutions at pH 7.4 and 22 degrees C. Unlike the intact aggrecan and its majo...

journal_title：Calcified tissue international

authors： Eanes ED,Hailer AW

更新日期：1994-09-01 00:00:00

abstract：:Skeletal tissues contain, apart from cells of the osteogenic and chondrogenic lineage, cells of hemopoietic origin, e.g., macrophages, osteoclasts, and their precursors. In the present study we examined the sensitivity for extracellular ATP4- of the above-mentioned cell types in freshly isolated, bone-derived cell pop...

journal_title：Calcified tissue international

authors： Modderman WE,Weidema AF,Vrijheid-Lammers T,Wassenaar AM,Nijweide PJ

更新日期：1994-08-01 00:00:00

abstract：:Results from previous quasi-static mechanical tests indicate that femurs from elderly subjects fail in vitro at forces 50% below those available in a fall from standing height. However, bone is a rate-dependent material, and it is not known whether this imbalance is present at rates of loading which occur in a fall. B...

journal_title：Calcified tissue international

authors： Courtney AC,Wachtel EF,Myers ER,Hayes WC

更新日期：1994-07-01 00:00:00

abstract：:Seventy-two eugonadal women, mean age 39 +/- 4 years, with a z score for total body bone mineral content (BMC) of less than -1.5 (mean -1.80 +/- 0.12) were selected from a previous screening study of normal values of total body and regional BMC in women using dual-energy X-ray absorptiometry. The women were distribute...

journal_title：Calcified tissue international

authors： Rico H,Revilla M,Villa LF,Alvarez de Buergo M,Arribas I

更新日期：1994-06-01 00:00:00

abstract：:Fourier-transform (FT) Raman spectroscopy was used to characterize the organic and mineral components of biological and synthetic calcium phosphate minerals. Raman spectroscopy provides information on biological minerals that is complimentary to more widely used infrared methodologies as some infrared-inactive vibrati...

journal_title：Calcified tissue international

authors： Sauer GR,Zunic WB,Durig JR,Wuthier RE

更新日期：1994-05-01 00:00:00

abstract：:The purpose of this study was to examine the influence of exercise on the serum concentrations of intact parathyroid hormone (PTH). Serum PTH and plasma lactate were measured in 15 well-trained men, 9 long-distance runners and 6 fire-fighters, during two running exercises. Test one consisted of 40-minute treadmill run...

journal_title：Calcified tissue international

authors： Salvesen H,Johansson AG,Foxdal P,Wide L,Piehl-Aulin K,Ljunghall S

更新日期：1994-04-01 00:00:00