lipid-bilayer-vesicle-generation-using-microfluidic-jetting

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

Bottom-up synthetic biology presents a novel approach for investigating and reconstituting biochemical systems and, potentially, minimal organisms. This ...

University of Michigan

Seizures and epilepsy are a relatively common occurrence in the neurosurgical patient. Neurosurgeons are often involved in the medical management utilising anti-epileptic drugs (AEDs). There is a distinct lack of contemporary literature in relation to management of seizures/epilepsy in the neurosurgical patient, in particular, for the newer AEDs. In the UK, clinical practice guidelines have been issued from both the National Institute for Health and Clinical Excellence (NICE) and Scottish Intercollegiate Guidelines Network (SIGN) in relation to epilepsy in primary and secondary care. We sought to determine current management practice for neurosurgical patients with epilepsy/seizures. The relevance of the issued guidelines was examined within the neurosurgical setting. An audit by telephone survey was conducted in Neurosurgical and Neurology units in the UK. Respondents were asked about the management of patients in two clinical scenarios. We received 25 responses from the neurosurgical and 22 responses from the neurology communities. Management of the patient scenarios is described and is further considered in relation to the published guidelines. There was considerable disparity between the guidelines and the management strategies pursued by both groups. We conclude that the standard of treatment is sub-optimal in many cases. The guidelines have not had a significant influence and are not felt to be strictly relevant within the neurosurgical setting. The development of guidelines relevant to the neurosurgical setting is proposed. Further research within this field and investment in education for neurosurgeons relating to AED therapy is advocated. The neurologists responses were more closely aligned to the guidelines and so they were deemed the 'NICEst'.

Neurologist vs the neurosurgeons: who is the NICEst? The medical management of the neurosurgical patient with seizures.

The etiology and immunopathology of multiple sclerosis (MS) is not well understood. It is recognized that although autoreactive T cells are the main early mediators of disease, other cell types, including cells of the innate immune system contribute to MS pathogenesis. The objective of this study was to determine if Toll-like receptor (TLR) signaling is functionally altered in patients with MS.

Impaired toll-like receptor 8 signaling in multiple sclerosis.

L&#39;&eacute;tiologie et l&#39;immunopathologie de scl&eacute;rose en plaques (MS) n&#39;est pas bien comprise. Il est reconnu que bien que les cellules autor&eacute;actives T sont les principaux m&eacute;diateurs d&eacute;but de maladie, les autres types de cellules, y compris les cellules du syst&egrave;me immunitaire inn&eacute; contribuent &agrave; MS pathogen&egrave;se. L&#39;objectif de cette &eacute;tude &eacute;tait de d&eacute;terminer si la signalisation du r&eacute;cepteur Toll-like (TLR) est fonctionnellement alt&eacute;r&eacute;e chez les patients atteints de SP.

Avec facult&eacute;s affaiblies toll-like receptor 8 la signalisation dans la scl&eacute;rose en plaques.

Chronic immune activation is a major complication of antiretroviral therapy (ART) for HIV infection and can cause a devastating immune reconstitution inflammatory syndrome (IRIS) in the brain. The mechanism of T-cell activation in this population is not well understood. We found HIV-Tat protein and IL-17-expressing mononuclear cells in the brain of an individual with IRIS. Tat was also present in the CSF of individuals virologically controlled on ART. Hence we examined if Tat protein could directly activate T cells. Tat transcriptionally dysregulated 94 genes and induced secretion of 11 cytokines particularly activation of IL-17 signaling pathways supporting the development of a proinflammatory state. Tat increased IL-17 transcription and secretion in T cells. Tat entered the T cells rapidly by clathrin-mediated endocytosis and localized to both the cytoplasm and the nucleus. Tat activated T cells through a nonclassical pathway dependent upon vascular endothelial growth factor receptor-2 and downstream secondary signaling pathways but independent of the T-cell receptor. However, Tat stimulation of T cells did not induce T-cell proliferation but increased viral infectivity. This study demonstrates Tat's role as a virulence factor, by driving T-cell activation and contributing to IRIS pathophysiology. This supports the necessity of an anti-Tat therapy in conjunction with ART and identifies multiple targetable pathways to prevent Tat-mediated T-cell activation.

Induction of IL-17 and nonclassical T-cell activation by HIV-Tat protein.

A cannulated lag screw inserted through the medial cuneiform into the base of the second metatarsal is often utilized to reduce the diastasis and aid healing of Lisfranc injuries. Also procedures such as a midfoot or a Lapidus arthrodesis require adequate implant-bone purchase in the medial cuneiform. The medial cuneiform contains cancellous bone of varying density. Knowledge of density variation may be helpful for implant usage and manufacturing of area specific implants.

Karan Patel

Department of Mechanical Engineering

University of Michigan

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

Karan Patel

.css-o250i3{font-size:18px;font-family:Open Sans,sans-serif;line-height:21.6px;}Department of Mechanical Engineering

University of Michigan

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

Department of Mechanical Engineering