53 research outputs found
Public health, research and rights : the perspectives of deliberation panels with politically and socially active disabled people
Public health research purports to provide the evidence base for policies, programmes and interventions to improve the health of a population. However, there is increasing awareness that the experiences of disabled people have played little part in informing this evidence base. This paper discusses one aspect of a study commissioned by England’s National Institute for Health Research (NIHR) to review the implications for public health of theories and models of disability. This part of the study focused on the development of a tool or decision aid to promote ethical inclusion of disabled people in public health randomised controlled trials (RCTs) and evaluative research. The tool was introduced at four regional ‘deliberating panels’ involving politically and socially active disabled people. In addition, we held a panel with public health professionals. The deliberation panels debated how the focus of public health was narrowing, why disability was excluded and positive and negative issues with using rights to guide research and evaluative practice. Politically active disabled people argued for a social model of human rights to guide any rights based tools or decision aids in public health and disability research
V-ATPase-Mediated Granular Acidification Is Regulated by the V-ATPase Accessory Subunit Ac45 in POMC-Producing Cells
The regulation of the V-ATPase, the proton pump mediating intraorganellar acidification, is still elusive. We find that excess of the neuroendocrine V-ATPase accessory subunit Ac45 reduces the intragranular pH and consequently disturbs prohormone convertase activation and prohormone processing. Thus, Ac45 represents the first V-ATPase regulator
Incomplete posttranslational prohormone modifications in hyperactive neuroendocrine cells
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In vivo assembly of the axon initial segment in motor neurons
International audienceThe axon initial segment (AIS) is responsible for both the modulation of action potentials and the maintenance of neuronal polarity. Yet, the molecular mechanisms controlling its assembly are incompletely understood. Our study in single electroporated motor neurons in mouse embryos revealed that AnkyrinG (AnkG), the AIS master organizer, is undetectable in bipolar migrating motor neurons, but is already expressed at the beginning of axonogenesis at E9.5 and initially distributed homogeneously along the entire growing axon. Then, from E11.5, a stage when AnkG is already apposed to the membrane, as observed by electron microscopy, the protein progressively becomes restricted to the proximal axon. Analysis on the global motor neurons population indicated that Neurofascin follows an identical spatio-temporal distribution, whereas sodium channels and beta 4-spectrin only appear along AnkG(+) segments at E11.5. Early patch-clamp recordings of individual motor neurons indicated that at E12.5 these nascent AISs are already able to generate spikes. Using knock-out mice, we demonstrated that neither beta 4-spectrin nor Neurofascin control the distal-to-proximal restriction of AnkG
Spectrin-based skeleton as an actor in cell signaling
This review focuses on the recent advances in functions of spectrins in non-erythroid cells. We discuss new data concerning the commonly known role of the spectrin-based skeleton in control of membrane organization, stability and shape, and tethering protein mosaics to the cellular motors and to all major filament systems. Particular effort has been undertaken to highlight recent advances linking spectrin to cell signaling phenomena and its participation in signal transduction pathways in many cell types
Disability studies and development geography: Empirical connections, theoretical resonances, and future directions
Scholarship that jointly considers disability and development has advanced over the past decade to include greater attention to the shared histories of colonialism, racism, and the disability category and the relationships among developmental states, ideas about disability, and development projects. A handful of geographers have also directly addressed disability and development or disability in the “developing world” context. This paper reviews current scholarship and highlights three areas where disability studies and development geography share under-explored empirical connections and theoretical resonances: the disability–poverty nexus, interventions in the name of improvement and cure, and mobility and migration. Yet bringing greater attention to disability in development must be done carefully, given the fraught nature of the disability category. As such, this paper also considers how development geographers might contribute to the literature while accounting for the ways in which ideas about what constitutes “disability” and what constitutes “development” emerge through sets of processes and relationships
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