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Biomedical Engineering and Bioengineering Commons™
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Full-Text Articles in Biomedical Engineering and Bioengineering
Mechanisms For Osteoblast And Osteocyte Initiation And Sustainment Of Bone Formation In Young-Adult And Aged Mice, Taylor Lynn Harris
Mechanisms For Osteoblast And Osteocyte Initiation And Sustainment Of Bone Formation In Young-Adult And Aged Mice, Taylor Lynn Harris
McKelvey School of Engineering Theses & Dissertations
The cellular mechanisms for loading-induced bone formation, from osteocyte mechano-sensation to osteoblast-directed bone formation, are not well understood. Elucidating these mechanisms and identifying any processes that are disrupted in aged mice can aide in the development of new anabolic drugs for treating diseases like osteoporosis. This thesis begins by investigating the genes expressed by osteocytes following loading at an early mechanosensitive (4-hr) timepoint, and later at a bone-forming (day 5) timepoint. We demonstrated increases in Ngf and Wnt1 in osteocyte-enriched intracortical bone by laser capture microdissection and microarray analysis. These results were important in demonstrating the presence of Ngf in …
The Role Of Gene Transcription And Inflammatory Cytokines In Bone Fracture Repair, Brandon Alan Coates
The Role Of Gene Transcription And Inflammatory Cytokines In Bone Fracture Repair, Brandon Alan Coates
McKelvey School of Engineering Theses & Dissertations
In most instances, the skeleton has a remarkable capacity for repair following injury. However, in 5 to 10% of patients, fractures fail to properly heal resulting in non-union. A need exists for a more comprehensive understanding of the complex biology of fracture repair, which involves the coordinated work of many cell types including osteoblasts, osteoclasts, and immune cells. Depending on the extent of injury, fractures will heal through either intramembranous bone formation, involving the direct formation of bone callus, or endochondral bone formation, featuring a cartilage intermediary prior to bone callus formation. Both processes begin with inflammation, which sets the …
The Role Of Obesity And Dietary Fatty Acid Content In Regulating Humeral Bone And Cartilage Homeostasis, Lauren Votava
The Role Of Obesity And Dietary Fatty Acid Content In Regulating Humeral Bone And Cartilage Homeostasis, Lauren Votava
McKelvey School of Engineering Theses & Dissertations
Objective: The goal of this study was to investigate the effects of different dietary fatty acids in the context of diet-induced obesity on bone and cartilage in the humerus. It is known that obesity increases the severity of injury-induced osteoarthritis in the knee, however it is not fully understood what pathological changes have occurred due to diet alone1. Additionally, while it is known that shoulder osteoarthritis has a link to obesity, the alterations in this joint are incompletely described.
Methods: In order to examine diet-induced changes in both bone and cartilage, this research utilized mice that had been …