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Medical Sciences

2015

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Articles 1621 - 1629 of 1629

Full-Text Articles in Medicine and Health Sciences

Neuroinflammatory Alterations Via Cd-36 In Traumatic Brain Injury, Diana G. Hernandez-Ontiveros Jan 2015

Neuroinflammatory Alterations Via Cd-36 In Traumatic Brain Injury, Diana G. Hernandez-Ontiveros

USF Tampa Graduate Theses and Dissertations

Traumatic brain injury (TBI) has become an increasingly unmet clinical need due to intense military conflicts worldwide. Directly impacted brain cells suffer massive death, with neighboring cells succumbing to progressive neurodegeneration accompanied by inflammatory and other secondary cell death events. Subsequent neurodegenerative events may extend to normal areas beyond the core of injury, thereby exacerbating the central nervous system’s inflammatory response to TBI. Recently CD-36 (cluster of differentiation 36/fatty acid translocase (FAT), a class B scavenger receptor of modified low-density lipoproteins (mLDLs) in macrophages, has been implicated in lipid metabolism, atherosclerosis, oxidative stress, and tissue injury in cerebral ischemia, and …


Sigma Receptor Activation Mitigates Toxicity Evoked By The Convergence Of Ischemia, Acidosis And Amyloid-Beta, Adam Alexander Behensky Jan 2015

Sigma Receptor Activation Mitigates Toxicity Evoked By The Convergence Of Ischemia, Acidosis And Amyloid-Beta, Adam Alexander Behensky

USF Tampa Graduate Theses and Dissertations

Stroke is the fifth leading cause of death in the United States and a major cause of long-term disability in industrialized countries. The core region of an ischemic stroke dies within minutes due to activation of necrotic pathways. Outside of this core region is the penumbral zone, where some perfusion is maintained via collateral arteries. Delayed cell death occurs in this area due to the triggering of apoptotic mechanisms, which expands the ischemic injury over time. The cellular and molecular events that produce the expansion of the ischemic core continue to be poorly understood. The increases in the amyloid precursor …


Predicting Aqueous Solubility Of Pharmaceutical Agents By Solid Dispersion Prepared By Solvent Evaporation Method, Karthik Reddy Patlolla Jan 2015

Predicting Aqueous Solubility Of Pharmaceutical Agents By Solid Dispersion Prepared By Solvent Evaporation Method, Karthik Reddy Patlolla

University of the Pacific Theses and Dissertations

Solubility of active pharmaceutical agents is a crucial process that determines drug absorption and ultimately its bioavailability. Many of the new therapeutically beneficial compounds discovered are lipophilic requiring various solubility enhancement strategies to improve their solubility. Among these strategies, solubility enhancement using solid dispersions is a leading method. To obtain a desirable increase in the solubility of a poorly-soluble compound, a good understanding of the molecular descriptors influencing the enhancement of solubility is essential. Therefore, the major research objective was to determine the descriptors which significantly influence the solubility enhancement by solid dispersions. After enhancing the solubility of selected poorly-soluble …


Normalizing Disability In Families, Mary Crossley Jan 2015

Normalizing Disability In Families, Mary Crossley

Articles

In “Selection against Disability: Abortion, ART, and Access,” Alicia Ouellette probes a particularly vexing point of intersection between ART (assisted reproductive technology) and abortion: how negative assumptions about the capacities of disabled persons and the value of life with disability infect both prospective parents’ prenatal decisions about what pregnancies to pursue and fertility doctors’ decisions about providing services to disabled adults. This commentary on Ouellette’s contribution to the symposium titled “Intersections in Reproduction: Perspectives on Abortion and Assisted Reproductive Technologies" first briefly describes Ouellette’s key points and her article’s most valuable contributions. It then suggests further expanding the frame of …


Etxb Alters The Activation State Of Mature Dendritic Cell Subsets, J Ji, Kristin Griffiths, P Milburn, T Hirst, Helen O'Neill Dec 2014

Etxb Alters The Activation State Of Mature Dendritic Cell Subsets, J Ji, Kristin Griffiths, P Milburn, T Hirst, Helen O'Neill

Helen O'Neill

No abstract provided.


Expression Of Tcr-Vbeta Peptides By Murine Bone Marrow Cells Does Not Identify T Cell Progenitors, Janice Abbey, Holger Karunsky, Thomas Serwold, Peter Papathanasiou, Irving Weissman, Helen O'Neill Dec 2014

Expression Of Tcr-Vbeta Peptides By Murine Bone Marrow Cells Does Not Identify T Cell Progenitors, Janice Abbey, Holger Karunsky, Thomas Serwold, Peter Papathanasiou, Irving Weissman, Helen O'Neill

Helen O'Neill

Germline transcription has been described for both immunoglobulin and T-cell receptor (TCR) genes, raising questions of their functional significance during haematopoiesis. Previously, an immature murine T-cell line was shown to bind antibody to TCR-Vβ8.2 in absence of anti-Cβ antibody binding, and an equivalent cell subset was also identified in the mesenteric lymph node. Here, we investigate whether germline transcription and cell surface Vβ8.2 expression could therefore represent a potential marker of T-cell progenitors. Cells with the TCR phenotype of Vβ8.2+Cβ- are found in several lymphoid sites, and among the lineage-negative (Lin-) fraction of hematopoietic progenitors in bone marrow (BM). Cell …


Delineation Of A Novel Dendritic-Like Subset In Human Spleen., Sawang Petvises, D Talaulikar, Helen O'Neill Dec 2014

Delineation Of A Novel Dendritic-Like Subset In Human Spleen., Sawang Petvises, D Talaulikar, Helen O'Neill

Helen O'Neill

No abstract provided.


Hyperpolarization Methods For Mrs, Boyd M. Goodson, Nicholas Whiting, Aaron M. Coffey, Panayiotis Nikolaou, Fan Shi, Brogan M. Gust, Maxwell E. Gemeinhardt, Roman Shchepin, Jason G. Skinner, Jonathan R. Birchall, Michael J. Barlow, Eduard Y. Chekmenev Dec 2014

Hyperpolarization Methods For Mrs, Boyd M. Goodson, Nicholas Whiting, Aaron M. Coffey, Panayiotis Nikolaou, Fan Shi, Brogan M. Gust, Maxwell E. Gemeinhardt, Roman Shchepin, Jason G. Skinner, Jonathan R. Birchall, Michael J. Barlow, Eduard Y. Chekmenev

Nicholas Whiting

This article covers the fundamental principles and practice of NMR hyperpolarization techniques, which are proving useful for in vivo magnetic resonance spectroscopy (MRS) studies of metabolism in animal models, and clinical trials with hyper-enhanced sensitivity. Fundamentally, hyperpolarization methods enhance nuclear spin polarization by orders-of-magnitude, resulting in concomitant improvement in NMR detection sensitivity. The hyperpolarization methods described here – dynamic nuclear polarization (DNP), para-hydrogen induced polarization (PHIP), signal amplification by reversible exchange (SABRE), and spin-exchange optical pumping (SEOP) – are capable of achieving nuclear spin polarization approaching the theoretical maximum of unity on nuclear spin sites of molecular or atomic agents …


Cross-Validation And Hypothesis Testing In Neuroimaging: An Irenic Comment On The Exchange Between Friston And Lindquist Et Al., Philip T. Reiss Dec 2014

Cross-Validation And Hypothesis Testing In Neuroimaging: An Irenic Comment On The Exchange Between Friston And Lindquist Et Al., Philip T. Reiss

Philip T. Reiss

The “ten ironic rules for statistical reviewers” presented by Friston (2012) prompted a rebuttal by Lindquist et al. (2013), which was followed by a rejoinder by Friston (2013). A key issue left unresolved in this discussion is the use of cross-validation to test the significance of predictive analyses. This note discusses the role that cross-validation-based and related hypothesis tests have come to play in modern data analyses, in neuroimaging and other fields. It is shown that such tests need not be suboptimal and can fill otherwise-unmet inferential needs.