Results 191 to 200 of about 6,709 (223)

Large Brushite Stone in a Dilated Prostatic Urethra

Journal of Urology, 1987
We report a rare case of a large brushite stone lodged in a dilated prostatic urethra. The patient had been asymptomatic except for an episode of hematuria and he underwent successful removal of the stone. The stone weighed 35 gm., had a concentric layered structure and was composed mainly of brushite.
H, Kato, A, Ogawa
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Effect of albumin on brushite transformation to hydroxyapatite

Journal of Biomedical Materials Research, 2001
Brushite (CaHPO(4) x 2H(2)O) is a precursor to hydroxyapatite [HA, Ca(5)(PO(4))(3)OH]. It has been shown that a modified form of brushite, with potassium substituting for calcium at specific sites, demonstrated accelerated transformation to HA when exposed to nonproteinaceous Hanks' balanced aqueous salt solutions (HBSS).
J, Xie, C, Riley, K, Chittur
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BRUSHITE IN FIBROUS DYSPLASIA OF THE JAW BONE

Acta Pathologica Japonica, 1987
Crystals associated with the maxillary bone in a case of fibrous dysplasia were investigated histopathologically, crystallo‐graphically and by infrared absorption spectroscopy. Light microscopically, the crystals showed a transparent and plate‐like appearance, and were revealed to be piled, incomplete monoclinic structures up to 250μm in size by ...
H, Yamamoto, T, Sakae
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Scavenging effect of Trolox released from brushite cements

Acta Biomaterialia, 2015
In this study a brushite cement was doped with the chain-breaking antioxidant Trolox. The effect of the antioxidant on the physical properties of the cement was evaluated and the release of Trolox was monitored by UV spectroscopy. The ability of the Trolox set free to scavenge reactive oxygen species (ROS) released by macrophages was determined in ...
Gemma Mestres, Carlos F. Santos, Lars Engman, Cecilia Persson, Marjam Karlsson Ott   +4 more
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Beta‐tricalcium phosphate release from brushite cement surface

Journal of Biomedical Materials Research Part A, 2007
AbstractDifferent in vivo studies demonstrated that brushite cements are biocompatible, bioresorbable, and osteoconductive. However, the decay of brushite cements has been scarcely studied even though it may be of great concern for clinical applications in highly blood‐perfused regions.
M Hamdan, Alkhraisat, F Tamimi, Mariño, J Rubio, Retama, L Blanco, Jerez, E, López-Cabarcos   +4 more
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Biological Modification in the Brushite Crystallization

MRS Proceedings, 2004
AbstractThe crystallization of brushite has been investigated in the presence of typical ionic biological components, magnesium, fluoride and citrate and a natural protein, osteopontin, using a constant composition method capable of nano-mole sensitivity. While the simple ionic additives, magnesium and fluoride do not have a significant effect, citrate
Ruikang Tang, Molly R. Darragh, Christine A. Orme, John R. Hoyer, George H. Nancollas   +4 more
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Preparation and properties of macroporous brushite bone cements

Acta Biomaterialia, 2009
In the present work a macroporous brushite bone cement for use either as an injected or mouldable paste, or in the shape of preformed grafts, has been investigated. Macropores have been introduced by adding to the powder single crystals of mannitol which worked as a porogen.
CAMA G., BARBERIS, FABRIZIO, BOTTER, RODOLFO, CIRILLO P., CAPURRO, PIETRO MARCO, QUARTO, RODOLFO, SCAGLIONE S., FINOCCHIO, ELISABETTA, MUSSI, VALENTINA, VALBUSA, UGO   +9 more
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Characterization of alginate-brushite in-situ hydrogel composites

Materials Science and Engineering: C, 2016
In the present study alginate-brushite composite hydrogels were in-situ synthetized and characterized with respect to preparation parameters. Specifically, the influence of initial pH value and initial concentration of phosphate precursor on the in-situ fabrication of the composite hydrogel were taken into account.
DABIRI, SEYED MOHAMMAD HOSSEIN, LAGAZZO, ALBERTO, BARBERIS, FABRIZIO, Farokhi, Mehdi, FINOCCHIO, ELISABETTA, PASTORINO, LAURA   +5 more
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Epitaxial Relationships in Urolithiasis: The Brushite—Whewellite System

Clinical Science, 1977
1. Whewellite (calcium oxalate monohydrate) crystals were found to induce epitaxially the heterogeneous nucleation of brushite (calcium monohydrogen phosphate dihydrate) from its metastable supersaturated solution in approximately one-quarter of the time required for spontaneous precipitation in the absence of added nucleating agents. Scanning electron-
J L, Meyer, J H, Bergert, L H, Smith
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Brushite (CaHPO4⋅2H2O) by XPS

Surface Science Spectra, 2001
Dibasic calcium phosphate dihydrate (CaHPO4⋅2H2O, DCPD) is the least thermodynamically stable calcium phosphate phase according to Ostwald’s step rule and is an important biomineral involved in the growth of hydroxyapatite [Ca10(PO4)6(OH)2, HAP], the principal component of bone and teeth.
Charles C. Chusuei, D. Wayne Goodman
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