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Pesquisa : D01.029.260.700.675.374.075.025 [Categoria DeCS]
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  1 / 3164 MEDLINE  
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[PMID]:28470444
[Au] Autor:Lim PN; Feng J; Wang Z; Chong M; Konishi T; Tan LG; Chan J; Thian ES
[Ad] Endereço:Department of Mechanical Engineering, National University of Singapore, Singapore, 117 576, Singapore.
[Ti] Título:In-vivo evaluation of subcutaneously implanted cell-loaded apatite microcarriers for osteogenic potency.
[So] Source:J Mater Sci Mater Med;28(6):86, 2017 Jun.
[Is] ISSN:1573-4838
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Cell-loaded apatite microcarriers present as potential scaffolds for direct in-vivo delivery of cells post-expansion to promote bone regeneration. The objective of this study was to evaluate the osteogenic potency of human foetal mesenchymal stem cells (hfMSC)-loaded apatite microcarriers when implanted subcutaneously in a mouse model. This was done by examining for ectopic bone formation at 2 weeks, 1 month and 2 months, which were intended to coincide with the inflammation, healing and remodelling phases, respectively. Three histological examinations including haematoxylin and eosin staining to examine general tissue morphology, Masson's trichrome staining to identify tissue type, and Von Kossa staining to examine extent of tissue mineralisation were performed. In addition, immunohistochemistry assay of osteopontin was conducted to confirm active bone formation by the seeded hfMSCs. Results showed a high level of tissue organisation and new bone formation, with active bone remodelling being observed at the end of 2 months, and an increase in tissue density, organisation, and mineralisation could also be observed for hfMSC-loaded apatite microcarriers. Various cell morphology resembling that of osteoblasts and osteoclasts could be seen on the surfaces of the hfMSC-loaded apatite microcarriers, with presence of woven bone tissue formation being observed at the intergranular space. These observations were consistent with evidence of ectopic bone formation, which were absent in group containing apatite microcarriers only. Overall, results suggested that hfMSC-loaded apatite microcarriers retained their osteogenic potency after implantation, and provided an effective platform for bone tissue regeneration.
[Mh] Termos MeSH primário: Apatitas/química
Transplante de Células-Tronco Mesenquimais/métodos
Células Mesenquimais Estromais/fisiologia
Osteogênese/fisiologia
[Mh] Termos MeSH secundário: Animais
Diferenciação Celular
Seres Humanos
Teste de Materiais
Camundongos
Engenharia Tecidual/métodos
Tecidos Suporte
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1007/s10856-017-5897-4


  2 / 3164 MEDLINE  
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[PMID]:28456893
[Au] Autor:Kanazawa M; Tsuru K; Fukuda N; Sakemi Y; Nakashima Y; Ishikawa K
[Ad] Endereço:Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
[Ti] Título:Evaluation of carbonate apatite blocks fabricated from dicalcium phosphate dihydrate blocks for reconstruction of rabbit femoral and tibial defects.
[So] Source:J Mater Sci Mater Med;28(6):85, 2017 Jun.
[Is] ISSN:1573-4838
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This study aimed to evaluate in vivo behavior of a carbonate apatite (CO Ap) block fabricated by compositional transformation via a dissolution-precipitation reaction using a calcium hydrogen phosphate dihydrate [DCPD: CaHPO ·2H O] block as a precursor. These blocks were used to reconstruct defects in the femur and tibia of rabbits, using sintered dense hydroxyapatite (HAp) blocks as the control. Both the CO Ap and HAp blocks showed excellent tissue response and good osteoconductivity. HAp block maintained its structure even after 24 weeks of implantation, so no bone replacement of the implant was observed throughout the post-implantation period in either femoral or tibial bone defects. In contrast, CO Ap was resorbed with increasing time after implantation and replaced with new bone. The CO Ap block was resorbed approximately twice as fast at the metaphysis of the proximal tibia than at the epiphysis of the distal femur. The CO Ap block was resorbed at an approximately linear change over time, with complete resorption was estimated by extrapolation of data at approximately 1-1.5 years. Hence, the CO Ap block fabricated in this study has potential value as an ideal artificial bone substitute because of its resorption and subsequent replacement by bone.
[Mh] Termos MeSH primário: Apatitas/química
Substitutos Ósseos
Fosfatos de Cálcio/química
[Mh] Termos MeSH secundário: Animais
Durapatita
Epífises
Fêmur
Próteses e Implantes
Coelhos
Tíbia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 0 (Bone Substitutes); 0 (Calcium Phosphates); 55326-60-8 (carboapatite); 91D9GV0Z28 (Durapatite); O7TSZ97GEP (calcium phosphate, dibasic, dihydrate)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170501
[St] Status:MEDLINE
[do] DOI:10.1007/s10856-017-5896-5


  3 / 3164 MEDLINE  
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[PMID]:27771736
[Au] Autor:Wang J; Ishimoto T; Nakano T
[Ad] Endereço:School of Material Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
[Ti] Título:Unloading-Induced Degradation of the Anisotropic Arrangement of Collagen/Apatite in Rat Femurs.
[So] Source:Calcif Tissue Int;100(1):87-94, 2017 Jan.
[Is] ISSN:1432-0827
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The specific orientation of collagen and biological apatite (BAp) is an anisotropic feature of bone micro-organization; it is an important determinant of bone mechanical function and performance under anisotropic stress. However, it is poorly understood how this microstructure orientation is altered when the mechanical environment changes. We hypothesized that the preferential orientation of collagen/BAp would change in response to changes in mechanical conditions, similar to the manner in which bone mass and bone shape change. In the present study, we investigated the effect of unloading (removal of anisotropic stress) on the preferential orientation of collagen/BAp using a rat sciatic neurectomy model. Bone tissue that formed under unloaded conditions showed a more disordered collagen/BAp orientation than bone tissue that formed under physiological conditions. Coincidentally, osteocytes in unloaded bone displayed spherical morphology and random alignment. To the best of our knowledge, this study is the first to demonstrate the degradation of preferential collagen/BAp orientation in response to unloading conditions. In summary, we identified alterations in bone material anisotropy as an important aspect of the bone's response to unloading, which had previously been examined with regard to bone loss only.
[Mh] Termos MeSH primário: Apatitas/metabolismo
Colágeno/metabolismo
Fêmur/metabolismo
Osteócitos/metabolismo
[Mh] Termos MeSH secundário: Animais
Anisotropia
Densidade Óssea/fisiologia
Doenças Ósseas Metabólicas/metabolismo
Osso e Ossos/metabolismo
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 9007-34-5 (Collagen)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.1007/s00223-016-0200-0


  4 / 3164 MEDLINE  
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[PMID]:27773341
[Au] Autor:Yaguchi T
[Ad] Endereço:Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakae-cho Nishi, Matsudo, Chiba 271-8587, Japan.
[Ti] Título:Layering mechanism of MDP-Ca salt produced in demineralization of enamel and dentin apatite.
[So] Source:Dent Mater;33(1):23-32, 2017 01.
[Is] ISSN:1879-0097
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: The 10-methacryloyloxydecyl dihydrogen phosphate (MDP) (EX adhesives)-based one-step self-etch adhesives have become widely utilized due to their simplified application procedures. The aim of this study was to determine the type of the molecular species of calcium salts of MDP (MDP-Ca salts) that form a layered structure and to understand the layering mechanism of MDP-Ca salts. METHODS: The EX adhesives were prepared by varying the amounts of MDP (25.6, 49.9, 80.5 and 116.1mg) added in 1g of the EX adhesive. Enamel and dentin reactant residues were obtained after the reaction of each EX adhesive to enamel or dentin particles for 30s. The chemical analyses of both reactant residues were then performed. RESULTS: The molecular species of MDP-Ca salts that form a layered structure were determined as mono-calcium salt (MCS-MD) and di-calcium salts of the MDP dimer (DCS-MD). The dentin sample showed two types of characteristic XRD peaks assigned to the layer structure, since the dentin produced DCS-MD along with MCS-MD in contrast to the enamel sample. A mono-calcium salt of the MDP monomer (MCS-MM), a predominant molecular species, was not contributed to a layered-structure formation, since the intensities of characteristic XRD peaks are limited by the production of DCS-MD and MCS-MD. SIGNIFICANCE: The self-assembled layering of MCS-MD and DCS-MD is associated by a hydrophobic bond between two 10-methylene groups in MCS-MD and DCS-MD. The MCS-MD may form a more tightly-packed layered structure than DCS-MD by the hydrogen bonded interaction between hydroxy groups bonded to each phosphorous atom.
[Mh] Termos MeSH primário: Esmalte Dentário
Dentina
Metacrilatos
Desmineralização do Dente
[Mh] Termos MeSH secundário: Ataque Ácido Dentário
Apatitas
Colagem Dentária
Adesivos Dentinários
Teste de Materiais
Cimentos de Resina
Cloreto de Sódio
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Apatites); 0 (Dentin-Bonding Agents); 0 (Methacrylates); 0 (Resin Cements); 451W47IQ8X (Sodium Chloride); 85590-00-7 (methacryloyloxydecyl dihydrogen phosphate)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE


  5 / 3164 MEDLINE  
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[PMID]:29220377
[Au] Autor:Bini F; Pica A; Marinozzi A; Marinozzi F
[Ad] Endereço:Department of Mechanical and Aerospace Engineering, "Sapienza" University of Rome, Rome, Italy.
[Ti] Título:3D diffusion model within the collagen apatite porosity: An insight to the nanostructure of human trabecular bone.
[So] Source:PLoS One;12(12):e0189041, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Bone tissue at nanoscale is a composite mainly made of apatite crystals, collagen molecules and water. This work is aimed to study the diffusion within bone nanostructure through Monte-Carlo simulations. To this purpose, an idealized geometric model of the apatite-collagen structure was developed. Gaussian probability distribution functions were employed to design the orientation of the apatite crystals with respect to the axes (length L, width W and thickness T) of a plate-like trabecula. We performed numerical simulations considering the influence of the mineral arrangement on the effective diffusion coefficient of water. To represent the hindrance of the impermeable apatite crystals on the water diffusion process, the effective diffusion coefficient was scaled with the tortuosity, the constrictivity and the porosity factors of the structure. The diffusion phenomenon was investigated in the three main directions of the single trabecula and the introduction of apatite preferential orientation allowed the creation of an anisotropic medium. Thus, different diffusivities values were observed along the axes of the single trabecula. We found good agreement with previous experimental results computed by means of a genetic algorithm.
[Mh] Termos MeSH primário: Apatitas/química
Osso e Ossos/química
Colágeno/química
Nanoestruturas
[Mh] Termos MeSH secundário: Difusão
Seres Humanos
Método de Monte Carlo
Porosidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 9007-34-5 (Collagen)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180104
[Lr] Data última revisão:
180104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171209
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189041


  6 / 3164 MEDLINE  
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[PMID]:27775532
[Au] Autor:Andriolo JM; Rossi RJ; McConnell CA; Connors BI; Trout KL; Hailer MK; Pedulla ML; Skinner JL
[Ti] Título:Influence of Iron-Doped Apatite Nanoparticles on Viral Infection Examined in Bacterial Versus Algal Systems.
[So] Source:IEEE Trans Nanobioscience;15(8):908-916, 2016 12.
[Is] ISSN:1558-2639
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Centers for Disease Control and Prevention have estimated that each year, two million people in the United States become infected with antibiotic-resistant bacteria, of which, approximately 23000 die as a direct result of these infections. Phage therapy, or the treatment of bacterial infection by specific, antagonistic viruses, provides one alternative to traditional antibiotics. Bacteriophages, or phages, are bacteria-specific viruses that possess biological traits that allow for not only the removal of bacterial infection, but also the evasion of bacterial resistance, which renders antibiotics ineffective. Previous research has shown the addition of iron-doped apatite nanoparticles (IDANPs) to bacteria prior to phage exposure results in increased bacterial plaques in vitro. Coupled with the biocompatible nature of apatite, these results provide promise for future use of IDANPs as adjuvants to phage therapy along with anti-bacterial applications yet to be explored. Although IDANP enhancement of phage infection has been replicated many times in gram-positive and gram-negative prokaryotic hosts as well as with the utilization of both RNA and DNA viruses, the specific mechanisms involved remain elusive. To further understand increased phage infections in a prokaryotic system, and to evaluate the safety of IDANPs as a treatment used in a eukaryotic system, we have replicated plaque assay experiments in an algal system using Chlorella variabilis NC64A and its virus, Paramecium bursaria chlorella virus 1 (PBCV-1). Statistical modeling was used to evaluate alteration in numbers of plaques observed after viral introduction in IDANP-exposed versus non-IDANP-exposed bacterial and algal cell cultures. While IDANPs synthesized between 25°C-45°C and doped with 30% iron have been shown to influence dramatic increases in phage-induced bacterial death, experiments replicated in an algal system indicated viral infections do not increase when C. variabilis cells are pre-exposed to IDANPs. It is essential to potential use of IDANPs as an antibacterial adjuvant that IDANPs do not increase viral infection of eukaryotic host cells during treatment.
[Mh] Termos MeSH primário: Apatitas/farmacologia
Bacteriófagos/patogenicidade
Chlorella/efeitos dos fármacos
Chlorella/virologia
Nanopartículas/toxicidade
Staphylococcus aureus/efeitos dos fármacos
Staphylococcus aureus/virologia
[Mh] Termos MeSH secundário: Apatitas/química
Nanopartículas/química
Ensaio de Placa Viral
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Apatites)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171222
[Lr] Data última revisão:
171222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.1109/TNB.2016.2619349


  7 / 3164 MEDLINE  
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[PMID]:28553104
[Au] Autor:Wu Z; Li Q; Pan Y; Yao Y; Tang S; Su J; Shin JW; Wei J; Zhao J
[Ad] Endereço:Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology.
[Ti] Título:Nanoporosity improved water absorption, in vitro degradability, mineralization, osteoblast responses and drug release of poly(butylene succinate)-based composite scaffolds containing nanoporous magnesium silicate compared with magnesium silicate.
[So] Source:Int J Nanomedicine;12:3637-3651, 2017.
[Is] ISSN:1178-2013
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:Bioactive composite macroporous scaffold containing nanoporosity was prepared by incorporation of nanoporous magnesium silicate (NMS) into poly(butylene succinate) (PBSu) using solvent casting-particulate leaching method. The results showed that the water absorption and in vitro degradability of NMS/PBSu composite (NMPC) scaffold significantly improved compared with magnesium silicate (MS)/PBSu composite (MPC) scaffold. In addition, the NMPC scaffold showed improved apatite mineralization ability, indicating better bioactivity, as the NMPC containing nanoporosity could induce more apatite and homogeneous apatite layer on the surfaces than MPC scaffold. The attachment and proliferation of MC3T3-E1 cells on NMPC scaffold increased significantly compared with MPC scaffold, and the alkaline phosphatase (ALP) activity of the cells on NMPC scaffold was expressed at considerably higher levels compared with MPC scaffold. Moreover, NMPC scaffold with nanoporosity not only had large drug loading (vancomycin) but also exhibited drug sustained release. The results suggested that the incorporation of NMS into PBSu could produce bioactive composite scaffold with nanoporosity, which could enhance water absorption, degradability, apatite mineralization and drug sustained release and promote cell responses.
[Mh] Termos MeSH primário: Butileno Glicóis/química
Silicatos de Magnésio/química
Nanoestruturas/química
Osteoblastos/fisiologia
Polímeros/química
Tecidos Suporte
[Mh] Termos MeSH secundário: Fosfatase Alcalina/metabolismo
Animais
Apatitas/química
Materiais Biocompatíveis/química
Linhagem Celular
Proliferação Celular
Liberação Controlada de Fármacos
Camundongos
Nanoporos
Osteoblastos/citologia
Vancomicina/farmacocinética
Água/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 0 (Biocompatible Materials); 0 (Butylene Glycols); 0 (Magnesium Silicates); 0 (Polymers); 0 (bionole); 059QF0KO0R (Water); 6Q205EH1VU (Vancomycin); EC 3.1.3.1 (Alkaline Phosphatase)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170919
[Lr] Data última revisão:
170919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170530
[St] Status:MEDLINE
[do] DOI:10.2147/IJN.S132778


  8 / 3164 MEDLINE  
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[PMID]:28415507
[Au] Autor:Gu Z; Wang S; Weng W; Chen X; Cao L; Wei J; Shin JW; Su J
[Ad] Endereço:Department of Trauma Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, China; The Department of Orthopaedics, Jing'an District Centre Hospital of Shanghai (Huashan Hospital Fudan University Jing'An Branch), 200040, China.
[Ti] Título:Influences of doping mesoporous magnesium silicate on water absorption, drug release, degradability, apatite-mineralization and primary cells responses to calcium sulfate based bone cements.
[So] Source:Mater Sci Eng C Mater Biol Appl;75:620-628, 2017 Jun 01.
[Is] ISSN:1873-0191
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In this study, composite cements containing mesoporous magnesium silicate (m-MS) and calcium sulfate (CS) were fabricated. The results revealed that the setting time of the m-MS/CS composite cements (m-MSC) slightly prolonged with the increase of m-MS content while the compressive strength suffered a little loss. The doping of m-MS improved the water absorption, drug release (vancomycin) and degradability of the m-MSC in Tris-HCl solution (pH=7.4). In addition, addition of m-MS facilitated the apatite-mineralization of m-MSC in simulated body fluid (SBF), indicating good bioactivity. For cell cultural experiments, the results revealed that the m-MSC promoted the cells adhesion and proliferation, and improved the alkaline phosphatase (ALP) activity of MC3T3-E1 cells, revealing good cytocompatibility. It could be suggested that the m-MSC might be promising cements biomaterials for bone tissue regeneration.
[Mh] Termos MeSH primário: Apatitas
Cimentos para Ossos
Sulfato de Cálcio
Silicatos de Magnésio
Teste de Materiais
Água/química
[Mh] Termos MeSH secundário: Animais
Apatitas/química
Apatitas/farmacocinética
Apatitas/farmacologia
Cimentos para Ossos/química
Cimentos para Ossos/farmacocinética
Cimentos para Ossos/farmacologia
Regeneração Óssea/efeitos dos fármacos
Sulfato de Cálcio/química
Sulfato de Cálcio/farmacocinética
Sulfato de Cálcio/farmacologia
Linhagem Celular
Preparações de Ação Retardada/química
Preparações de Ação Retardada/farmacocinética
Preparações de Ação Retardada/farmacologia
Silicatos de Magnésio/química
Silicatos de Magnésio/farmacocinética
Silicatos de Magnésio/farmacologia
Camundongos
Porosidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 0 (Bone Cements); 0 (Delayed-Action Preparations); 0 (Magnesium Silicates); 059QF0KO0R (Water); 1343-88-0 (Florisil); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170731
[Lr] Data última revisão:
170731
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170419
[St] Status:MEDLINE


  9 / 3164 MEDLINE  
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Texto completo SciELO Brasil
[PMID]:28403358
[Au] Autor:Corral Nuñez C; Covarrubias C; Fernandez E; Oliveira OB
[Ad] Endereço:Universidad de Chile, Facultad de Odontología, Departamento de Odontología Restauradora, Santiago, Chile.
[Ti] Título:Enhanced bioactive properties of BiodentineTM modified with bioactive glass nanoparticles.
[So] Source:J Appl Oral Sci;25(2):177-185, 2017 Mar-Apr.
[Is] ISSN:1678-7765
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Objective: To prepare nanocomposite cements based on the incorporation of bioactive glass nanoparticles (nBGs) into BiodentineTM (BD, Septodent, Saint-Maur-des-Fosses Cedex, France) and to assess their bioactive properties. Material and Methods: nBGs were synthesised by the sol-gel method. BD nanocomposites (nBG/BD) were prepared with 1 and 2% nBGs by weight; unmodified BD and GC Fuji IX (GIC, GC Corporation, Tokyo, Japan) were used as references. The in vitro ability of the materials to induce apatite formation was assessed in SBF by X-ray diffraction (XRD), attenuated total reflectance with Fourier transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis. BD and nBG/BD were also applied to dentine discs for seven days; the morphology and elemental composition of the dentine-cement interface were analysed using SEM-EDX. Results: One and two percent nBG/BD composites accelerated apatite formation on the disc surface after short-term immersion in SBF. Apatite was detected on the nBG/BD nanocomposites after three days, compared with seven days for unmodified BD. No apatite formation was detected on the GIC surface. nBG/BD formed a wider interfacial area with dentine than BD, showing blockage of dentine tubules and Si incorporation, suggesting intratubular precipitation. Conclusions: The incorporation of nBGs into BD improves its in vitro bioactivity, accelerating the formation of a crystalline apatite layer on its surface after immersion in SBF. Compared with unmodified BD, nBG/BD showed a wider interfacial area with greater Si incorporation and intratubular precipitation of deposits when immersed in SBF.
[Mh] Termos MeSH primário: Compostos de Cálcio/química
Dentina/efeitos dos fármacos
Cimentos de Ionômeros de Vidro/química
Nanopartículas/química
Silicatos/química
[Mh] Termos MeSH secundário: Apatitas/química
Seres Humanos
Imersão
Teste de Materiais
Microscopia Eletrônica de Varredura
Reprodutibilidade dos Testes
Cimentos de Resina/química
Espectrometria por Raios X
Espectroscopia de Infravermelho com Transformada de Fourier
Estatísticas não Paramétricas
Propriedades de Superfície/efeitos dos fármacos
Fatores de Tempo
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 0 (Calcium Compounds); 0 (Glass Ionomer Cements); 0 (Resin Cements); 0 (Silicates); 404G39282C (tricalcium silicate)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:170414
[St] Status:MEDLINE


  10 / 3164 MEDLINE  
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[PMID]:28276733
[Au] Autor:Martin C; Maureille B; Amiot R; Touzeau A; Royer A; Fourel F; Panczer G; Flandrois JP; Lécuyer C
[Ad] Endereço:a Laboratoire de Géologie de Lyon LGL-TPE, UMR CNRS 5276, Université Claude Bernard Lyon 1 , Villeurbanne , France.
[Ti] Título:Record of Nile seasonality in Nubian neonates.
[So] Source:Isotopes Environ Health Stud;53(3):223-242, 2017 Jun.
[Is] ISSN:1477-2639
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The oxygen isotope compositions of bones (n = 11) and teeth (n = 20) from 12 Sudanese individuals buried on Sai Island (Nubia) were analysed to investigate the registration of the evolution of the Nile environment from 3700 to 500 years BP and the potential effects of ontogeny on the oxygen isotope ratios. The isotopic compositions were converted into the composition of drinking water, ultimately originating from the Nile. δ O values decrease during ontogeny; this is mainly related to breastfeeding and physiology. Those of neonates present very large variations. Neonates have a very high bone turnover and are thus able to record seasonal δ O variations of the Nile waters. These variations followed a pattern very similar to the present one. Nile δ O values increased from 1.4 to 4.4 ‰ (Vienna Standard Mean Ocean Water) from the Classic Kerma (∼3500 BP) through the Christian period (∼1000 BP), traducing a progressive drying of Northeast Africa.
[Mh] Termos MeSH primário: Osso e Ossos/química
Mudança Climática/história
Estações do Ano
Dente/química
[Mh] Termos MeSH secundário: Adulto
Apatitas/análise
Pré-Escolar
Monitoramento Ambiental
Feto/química
História Antiga
História Medieval
Seres Humanos
Lactente
Recém-Nascido
Isótopos de Oxigênio/análise
Fosfatos/análise
Rios/química
Sudão
Movimentos da Água
Adulto Jovem
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apatites); 0 (Oxygen Isotopes); 0 (Phosphates)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170508
[Lr] Data última revisão:
170508
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170310
[St] Status:MEDLINE
[do] DOI:10.1080/10256016.2016.1229667



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