Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 3313 for “"Bone"”.
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The Distribution of Bone Sialoprotein in Bone Mineralization
Bone consists of an organic matrix and hydroxyapatite (HA) crystals. The mechanism by which bone mineralizes the organic matrix is not clearly understood. Collagen provides the framework of bone and may even play a role in the nucleation of the HA crystals through the hole zones within collagen …
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Novel Molecules that Regulate Bone Formation and Bone Resorption
… is a disease characterized by decreased bone mass and microarchitectural deterioration of bone. Bone loss occurs when the increased bone resorption that occurs with age is not compensated by a corresponding increase in bone formation. Therefore, understanding the mechanisms which regulate …
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Bone growth following demineralized bone matrix implantation requires angiogenesis
… ossification in mice by implanting demineralized bone matrix (DBM) proximal to the femur to induce ectopic bone formation. TNP-470, a drug known to be anti-angiogenic, was used to inhibit vascularization during the time course of de novo bone formation in order to define the role of angiogenesis …
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Examination of Glucocorticoid Treatment on Bone Marrow Stroma: Implications for Bone Disease and Applied Bone Regeneration
… of osteopenia and avascular necrosis. Bone loss may be partially attributed to a steroid-induced decrease in the osteoblastic differentiation of multipotent progenitor cells found in the bone marrow. In order to determine if there is a change in the osteogenic potential of the bone …
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Worry the bone
<p>This thesis is an excerpt of a novel-length work of fiction.</p>
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Bone turnover markers and prediction of bone loss in elderly women
… who are at high risk. Biochemical markers of bone turnover (BTMs) have shown some degree of fracture predictability. There is also a correlation between rate of decrease of areal bone mineral density (aBMD) and incident fractures. In this study, the correlation between BTMs and rate of bone …
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Application of a Periosteum-bone Allograft for Healing of Segmental Bone Defects
Whole bone allografts or autografts are commonly applied surgically to repair approximately 2.2 million segmental bone defects annually caused by trauma or bone tumor resection worldwide.[1] However, about 15-40% of these cases result in unsuccessful healing because of a persistent gap or nonunion …
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Evaluating Bone by Ultrasound
Bone fractures associated with osteoporosis, a major bone disease characterized by low density and high fracture risk, are common causes of disability and large medical care expenses around the world. Considering its low cost, high portability, and non-ionizing nature, non-invasive ultrasound …
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Biomaterials for bone regeneration
… of hydroxyapatite (HA)-based biomaterials for bone repair: calcium phosphate microspheres and bioactive silicate glass scaffolds. These biomaterials were prepared with modified compositions and microstructures and then were evaluated for bone regeneration.</p> <p>The open HA microspheres with …
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Flexure of Cranial Bone
Made available in DSpace on 2014-12-12T00:25:44Z (GMT). No. of bitstreams: 1 7105131.pdf: 2447832 bytes, checksum: f22d01cb9ce29d88ab379b3da200fd56 (MD5) Previous issue date: 1970
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Comparison of Bone- and Tooth-Anchored, Bone-Anchored, and Surgically Assisted Bone-Anchored Rapid Palatal Expansion: a Pilot Retrospective CBCT Study
… rapid palatal expansion (MARPE) including bone- and tooth-anchored (BTAME), bone-anchored (BAME), and surgically assisted bone-anchored maxillary expansion (SRBAME) maxillary expansion. The secondary purpose is to formulate new research questions and develop methods for future MARPE …
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Towards a better interpretation of bone morphology: The effect of obesity on bone
The effects of obesity on bone are poorly understood in biological anthropology. By using an experimental approach, we hope to achieve several aims and objectives designed to further our understanding of how obesity affects bone health. The aims also look at trying to understand the implications of …
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Bone Marrow Stromal Cell Invasion and Bone Regeneration in Enzymatically-Degradable Osteoinductive Hydrogels
<p> Over the years, the repair of bone defect is an increasing challenge for reconstructive surgery. Due to disadvantage of autograft and allograft, including limit of bone supply, high morbidity and potential immune response, synthetic scaffold have been studied as a promising strategy for tissue …
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Synthetic Hydrogel Delivery of Growth Factors and Demineralized Bone Matrix for Bone Augmentation
… delivery of growth factors and demineralized bone matrix (DBM) for bone augmentation. Our motivation rests on observed weaknesses of current clinical approaches to bone augmentation, which synthetic hydrogels hope to overcome based on non-invasive application, contouring, tunability, and drug …
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ASSESSMENT OF PERI-IMPLANT BONE MICROARCHITECTURE IN D4 BONE: AN EX VIVO MICROCT ANALYSIS
… stability quotient (ISQ), and peri-implant bone microarchitecture in low-density bone (D4). The investigation focused on three Straumann implant systems: Bone Level Tapered (BLT), Bone Level X (BLX), and Tissue Level (TL). Materials and Methods: An ex vivo model utilizing porcine tibia bone …
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