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Articles 1 - 6 of 6
Full-Text Articles in Engineering
Phospho1 Deficiency Transiently Modifies Bone Architecture Yet Produces Consistent Modification In Osteocyte Differentiation And Vascular Porosity With Ageing, Behzad Javaheri, Alessandra Carriero, Katherine Ann Staines, Y.-M. Chang, D. A. Houston, Karla J. Oldknow, José Luis Millán, Bassir N. Kazeruni, Phil L. Salmon, Sandra J. Shefelbine
Phospho1 Deficiency Transiently Modifies Bone Architecture Yet Produces Consistent Modification In Osteocyte Differentiation And Vascular Porosity With Ageing, Behzad Javaheri, Alessandra Carriero, Katherine Ann Staines, Y.-M. Chang, D. A. Houston, Karla J. Oldknow, José Luis Millán, Bassir N. Kazeruni, Phil L. Salmon, Sandra J. Shefelbine
Biomedical Engineering and Sciences Faculty Publications
PHOSPHO1 is one of principal proteins involved in initiating bone matrix mineralisation. Recent studies have found that Phospho1 KO mice ( Phospho1-R74X) display multiple skeletal abnormalities with spontaneous fractures, bowed long bones, osteomalacia and scoliosis. These analyses have however been limited to young mice and it remains unclear whether the role of PHOSPHO1 is conserved in the mature murine skeleton where bone turnover is limited. In this study, we have used ex-vivo computerised tomography to examine the effect of Phospho1 deletion on tibial bone architecture in mice at a range of ages (5, 7, 16 and 34. weeks of age) …
The Effect Of Recency To Human Mobility, Hugo Barbosa, Fernando B. De Lima-Neto, Alexandre Evsukoff, Ronaldo Menezes
The Effect Of Recency To Human Mobility, Hugo Barbosa, Fernando B. De Lima-Neto, Alexandre Evsukoff, Ronaldo Menezes
Biomedical Engineering and Sciences Faculty Publications
In recent years, we have seen scientists attempt to model and explain human dynamics and in particular human movement. Many aspects of our complex life are affected by human movement such as disease spread and epidemics modeling, city planning, wireless network development, and disaster relief, to name a few. Given the myriad of applications, it is clear that a complete understanding of how people move in space can lead to considerable benefits to our society. In most of the recent works, scientists have focused on the idea that people movements are biased towards frequently-visited locations. According to them, human movement …
Effects Of Normal And Abnormal Loading Conditions On Morphogenesis Of The Prenatal Hip Joint: Application To Hip Dysplasia, Mario Giorgi, Alessandra Carriero, Sandra J. Shefelbine, Niamh C. Nowlan
Effects Of Normal And Abnormal Loading Conditions On Morphogenesis Of The Prenatal Hip Joint: Application To Hip Dysplasia, Mario Giorgi, Alessandra Carriero, Sandra J. Shefelbine, Niamh C. Nowlan
Biomedical Engineering and Sciences Faculty Publications
Joint morphogenesis is an important phase of prenatal joint development during which the opposing cartilaginous rudiments acquire their reciprocal and interlocking shapes. At an early stage of development, the prenatal hip joint is formed of a deep acetabular cavity that almost totally encloses the head. By the time of birth, the acetabulum has become shallower and the femoral head has lost substantial sphericity, reducing joint coverage and stability. In this study, we use a dynamic mechanobiological simulation to explore the effects of normal (symmetric), reduced and abnormal (asymmetric) prenatal movements on hip joint shape, to understand their importance for postnatal …
The Orisome: Structure And Function, Julia E. Grimwade, Alan C. Leonard
The Orisome: Structure And Function, Julia E. Grimwade, Alan C. Leonard
Biomedical Engineering and Sciences Faculty Publications
During the cell division cycle of all bacteria, DNA-protein complexes termed orisomes trigger the onset of chromosome duplication. Orisome assembly is both staged and stringently regulated to ensure that DNA synthesis begins at a precise time and only once at each origin per cycle. Orisomes comprise multiple copies of the initiator protein DnaA, which oligomerizes after interacting with specifically positioned recognition sites in the unique chromosomal replication origin, oriC. Since DnaA is highly conserved, it is logical to expect that all bacterial orisomes will share fundamental attributes. Indeed, although mechanistic details remain to be determined, all bacterial orisomes are capable …
A Ten-Year Search For Synchronous Cells: Obstacles, Solutions, And Practical Applications, Charles E. Helmstetter
A Ten-Year Search For Synchronous Cells: Obstacles, Solutions, And Practical Applications, Charles E. Helmstetter
Biomedical Engineering and Sciences Faculty Publications
My effort to use synchronously dividing cultures to examine the Escherichia coli cell cycle involved a 10-year struggle with failure after failure punctuated by a few gratifying successes, especially at the end. In this essay, I recount my personal journey in this obsessive experimental pursuit. That narrative is followed by a description of a simplified version of the "baby machine," a technique that was developed to obtain minimally disturbed, synchronously growing E. coli cells. Subsequent studies with this methodology led to an understanding of the basic properties of the relationship between chromosome replication and cell division. Accordingly, I end this …
Unambiguous Evaluation Of The Relative Photolysis Rates Of Nitro Indolinyl Protecting Groups Critical For Brain Network Studies, Richard L. Comitz, Yannick P. Ouedraogo, Nasri Nesnas
Unambiguous Evaluation Of The Relative Photolysis Rates Of Nitro Indolinyl Protecting Groups Critical For Brain Network Studies, Richard L. Comitz, Yannick P. Ouedraogo, Nasri Nesnas
Chemistry and Chemical Engineering Faculty Publications
Nitrated indolinyl photoprotecting groups are crucial tools extensively used in the study of neuronal signal transduction. Mononitrated photolabile protecting groups have been used effectively, however, recent advances in the introduction of a second nitro group have shown improvement in the photo efficiency of neurotransmitter (agonist) release, albeit, to varying extents, depending on the assessment methods employed. An unambiguous method is discussed based on Nuclear Magnetic Resonance (NMR), which is shown to be an effective technique in the relative overall rate comparison amongst varying nitrated protecting groups. Mononitrated and dinitrated photolabile protecting groups such as CDNIGlu and MNI-Glu are used as …