Transmission electron microscopy of lattice planes in human alveolar bone apatite crystals.

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：:In general, physical exercise appears to have favorable effects on the skeleton. However, a few recent reports have described negative effects, including reduced bone density (BMD) and high bone turnover in runners. The aim of our study was to compare endurance runners to controls with respect to BMD at different site...

journal_title：Calcified tissue international

authors： Brahm H,Ström H,Piehl-Aulin K,Mallmin H,Ljunghall S

更新日期：1997-12-01 00:00:00

abstract：:This cross-sectional, observational study was designed to identify clinical risk factors of osteoporosis and fractures in Korean women to validate the probability of osteoporosis and subsequent fractures. A total of 1541 Korean women were recruited nationally. Fracture history of any site, risk factors of osteoporosis...

journal_title：Calcified tissue international

authors： Kim YM,Hyun NR,Shon HS,Kim HS,Park SY,Park IH,Chung YS,Jung HG,Kim DH,Lim SK

更新日期：2008-12-01 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：: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：:The diphosphonates dichloromethanediphosphonate (Cl2MDP) and to a minor degree 1-hydroxyethane-1,1-diphosphonate (EDHP) increased the glycogen content in cultured cartilage cells of rabbit ear. This effect was not due to different concentrations of glucose in the medium. ...

journal_title：Calcified tissue international

authors： Felix R,Fast DK,Sallis JD,Fleisch H

更新日期：1980-01-01 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：: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

authors： Lau KH,Song XD,Ochi M,Wergedal JE

更新日期：1996-12-01 00:00:00

abstract：:Data have accumulated to show that various types of collagen crosslinking are implicated in the health of individuals, as well as in a number of disease states, such as osteoporosis, diabetes mellitus, chronic kidney disease, inflammatory bowel disease, or in conditions of mild hyperhomocysteinemia, or when glucocorti...

journal_title：Calcified tissue international

authors： Saito M,Marumo K

更新日期：2015-09-01 00:00:00

abstract：:Using a histochemical method for demonstrating acid phosphatase activity, we have studied osteoclasts residing at two different bone sites in rat incisor alveolar bone, one at the endosteum and the other at the tooth socket, and compared the response of these osteoclasts to systemic changes. After 12 days of calcium (...

journal_title：Calcified tissue international

authors： Liu CC,Baylink DJ

更新日期：1984-03-01 00:00:00

abstract：:Proline biosynthetic and degradative enzymes are unevenly distributed in differentiated mammalian tissues. Activities of the synthetic enzymes are relatively high in collagenous tissues, whereas activities of the degradative enzymes are high in noncollagenous tissues. In order to further characterize tissue-specific p...

journal_title：Calcified tissue international

authors： Smith RJ,Reddi AH,Phang JM

更新日期：1979-07-03 00:00:00

abstract：:The CYP3A7 enzyme metabolizes some steroid hormones, including dehydroepiandrosterone sulfate (DHEAS). The age-related decline of serum DHEAS levels is believed to contribute to osteoporosis. Previously, the CYP3A7*1C polymorphism has been shown to cause a persistent high CYP3A7 enzyme activity, resulting in lower lev...

journal_title：Calcified tissue international

authors： Bácsi K,Kósa JP,Borgulya G,Balla B,Lazáry A,Nagy Z,Horváth C,Speer G,Lakatos P

更新日期：2007-03-01 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：:Residents of a long-stay geriatric ward at the University Hospital Basel were included in a study to investigate the effects of hypovitaminosis D and immobility. All 91 women (mean age 82.5 years) and 92 men (mean age 78.7 years) were enrolled in the study. Measurements included bone resorption, as measured by urinary...

journal_title：Calcified tissue international

authors： Bischoff H,Stähelin HB,Vogt P,Friderich P,Vonthein R,Tyndall A,Theiler R

更新日期：1999-06-01 00:00:00

abstract：:Cytochemical staining of normal human bone cells in monolayer cultures for alkaline phosphatase (ALP) indicated that the cultures contained mixed-cell populations. Time course evaluations of the cytochemical staining revealed, in addition to the ALP-negative cell population, at least two subpopulations of ALP-positive...

journal_title：Calcified tissue international

authors： Matsuyama T,Lau KH,Wergedal JE

更新日期：1990-11-01 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

authors： Torres R,de la Piedra C,Rapado A

更新日期：1991-07-01 00:00:00

abstract：:The purpose of this study was to examine the effects of green tea extract (GTE) intake on bone structural and physiological properties, such as bone mass, trabecular bone microarchitecture, cortical bone geometry, and bone mechanical strength, in growing rats. Four-week-old male Wistar rats were divided into the follo...

journal_title：Calcified tissue international

authors： Minematsu A,Nishii Y,Imagita H,Sakata S

更新日期：2018-03-01 00:00:00

abstract：:The aim of this study was to follow the changes in bone mineral density (BMD) and biochemical markers of bone turnover in 10 children (7.5-17.5 years of age) with severe juvenile idiopathic arthritis (JIA), during a 3-year therapy with salmon calcitonin (100 IU/day 2 months on and 2 off for a year and 200 IU/day for 2...

journal_title：Calcified tissue international

authors： Siamopoulou A,Challa A,Kapoglou P,Cholevas V,Mavridis AK,Lapatsanis PD

更新日期：2001-07-01 00:00:00

abstract：:Currently used diagnostic measures for sarcopenia are based on the evaluation of appendicular skeletal muscle mass (ASMM) divided by height-squared (ASMMI). This study aimed to investigate the associations between different operational definitions of appendicular muscle mass and BMD at different skeletal sites in agin...

journal_title：Calcified tissue international

authors： Gonnelli S,Caffarelli C,Cappelli S,Rossi S,Giordano N,Nuti R

更新日期：2014-10-01 00:00:00

abstract：:The aim of the investigation was to measure the effect of fluoride on vertebral trabecular bone compressive strength and to correlate this with fluoride-induced changes in bone density. This correlation would express changes in the quality of bone during fluoride treatment. Pigs were used in the experiment because the...

journal_title：Calcified tissue international

authors： Mosekilde L,Kragstrup J,Richards A

更新日期：1987-06-01 00:00:00

abstract：:Ossification of the posterior longitudinal ligament of the spine (OPLL) is characterized by ectopic bone formation in the spinal ligaments. Mechanical stress, which acts on the posterior ligaments, is thought to be an important factor in the progression of OPLL. To clarify this mechanism, we investigated the effects o...

journal_title：Calcified tissue international

authors： Iwasaki K,Furukawa KI,Tanno M,Kusumi T,Ueyama K,Tanaka M,Kudo H,Toh S,Harata S,Motomura S

更新日期：2004-05-01 00:00:00

abstract：:The purpose of this research was to address the following question: How is the solubility of fluoride-pretreated carbonated apatite (CAP) in aqueous acidic media related to the equilibrium solution fluoride and/or the CAP adsorbed fluoride levels? A CAP sample prepared by a precipitation method at 70 degrees C contain...

journal_title：Calcified tissue international

authors： Barry AB,Zhuang H,Baig AA,Higuchi WI

更新日期：2003-03-01 00:00:00

abstract：:Interleukin (IL)-6 is a bone-resorbing cytokine that acts primarily on osteoclast progenitors to stimulate both proliferation and differentiation. Glucocorticoids (GC) down-regulate IL-6 synthesis in different cell types, including osteoblasts. Given the fact that bone remodeling is a tightly controlled process, it is...

journal_title：Calcified tissue international

authors： Dovio A,Masera RG,Sartori ML,Racca S,Angeli A

更新日期：2001-11-01 00:00:00

abstract：:The potassium pyroantimonate technique was utilized for the selective subcellular localization of calcium in the mandibular condylar cartilage of 1-day-old rats. Electron dense calcium pyroantimonate precipitates were localized principally in mitochondria and at the cell membrane of the chondrocytes. In addition, smal...

journal_title：Calcified tissue international

authors： Morris DC,Appleton J

更新日期：1980-01-01 00:00:00

abstract：:The interaction between estrogens and androgens, with their protective effects in bone, and parathyroid hormone (PTH), a calcitropic peptide hormone, is complex but may be better understood with murine models. The purpose of this study was to characterize skeletal phenotypes of mice deficient in estrogen receptor alph...

journal_title：Calcified tissue international

authors： Tözüm TF,Oppenlander ME,Koh-Paige AJ,Robins DM,McCauley LK

更新日期：2004-07-01 00:00:00

abstract：:Cortical bone can be modeled as a complex hierarchical composite interrelating both structure and material properties on four levels of structural organization: molecular, ultrastructural, microscopic, and macroscopic. In young animals, the microstructural systems are long parallel lamellar units, plexiform bone, whic...

journal_title：Calcified tissue international

authors： Katz JL,Yoon HS,Lipson S,Maharidge R,Meunier A,Christel P

更新日期：1984-01-01 00:00:00

abstract：:Newly developed fuzzy logic-derived structural parameters were used to characterize trabecular bone architecture in high-resolution magnetic resonance imaging (HR-MRI) of human cadaver calcaneus specimens. These parameters were compared to standard histomorphological structural measures and analyzed concerning perform...

journal_title：Calcified tissue international

authors： Patel PV,Eckstein F,Carballido-Gamio J,Phan C,Matsuura M,Lochmüller EM,Majumdar S,Link TM

更新日期：2007-10-01 00:00:00

abstract：:Previous observational studies have identified various risk factors associated with the development of osteoporosis, including sex hormone-binding globulin (SHBG). The aim of this study was to determine the potential causal effects of circulating SHBG concentrations on bone mineral density (BMD). Two-sample Mendelian ...

journal_title：Calcified tissue international

authors： Qu Z,Jiang J,Yang F,Huang J,Zhao J,Yan S

更新日期：2020-10-17 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

authors： Afghani A,Goran MI

更新日期：2006-12-01 00:00:00

abstract：:A 69-year-old man became hypocalcemic under medical observation. The hypocalcemia occurred in the presence of circulating immunoreactive parathyroid hormone (PTH). Common causes of secondary hyperparathyroidism were excluded, as was PTH resistance using PTH infusions. The immunoreactive PTH was examined in detail. PTH...

journal_title：Calcified tissue international

authors： McElduff A,Lackmann M,Wilkinson M

更新日期：1992-08-01 00:00:00