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Involving citizens in priority setting for public health research: Implementation in infection research
Background Public sources fund the majority of UK infection research, but citizens currently have no formal role in resource allocation. To explore the feasibility and willingness of citizens to engage in strategic decision making, we developed and tested a practical tool to capture public priorities for research. Method A scenario including six infection themes for funding was developed to assess citizen priorities for research funding. This was tested over two days at a university public festival. Votes were cast anonymously along with rationale for selection. The scenario was then implemented during a three-hour focus group exploring views on engagement in strategic decisions and in-depth evaluation of the tool. Results 188/491(38%) prioritized funding research into drug-resistant infections followed by emerging infections(18%). Results were similar between both days. Focus groups contained a total of 20 citizens with an equal gender split, range of ethnicities and ages ranging from 18 to >70 years. The tool was perceived as clear with participants able to make informed comparisons. Rationale for funding choices provided by voters and focus group participants are grouped into three major themes: (i) Information processing; (ii) Knowledge of the problem; (iii) Responsibility; and a unique theme within the focus groups (iv) The potential role of citizens in decision making. Divergent perceptions of relevance and confidence of “non-experts” as decision makers were expressed. Conclusion Voting scenarios can be used to collect, en-masse, citizens' choices and rationale for research priorities. Ensuring adequate levels of citizen information and confidence is important to allow deployment in other formats
Does family-centred neonatal discharge planning reduce healthcare usage? A before and after study in South West England
Objective: To implement parent-oriented discharge planning (Train-to-Home) for preterm infants in neonatal care. Design: Before and after study, investigating the effects of the intervention during two 11-month periods before and after implementation. Setting: Four local neonatal units (LNUs) in South West England. Participants: Infants without major anomalies born at 27 33 weeks gestation admitted to participating units, and their parents. Train-to-Home intervention: A family-centred discharge package to increase parents involvement and understanding of their baby s needs, comprising a train graphic and supporting care pathways to facilitate parents understanding of their baby s progress and physiological maturation, combined with improved estimation of the likely discharge date. Main outcome measures: Perceived Maternal Parenting Self-Efficacy (PMP S-E) scores, infant length of stay (LOS) and healthcare utilisation for 8 weeks following discharge. Results: Parents reported that the Train-to-Home improved understanding of their baby s progress and their preparedness for discharge. Despite a lack of change in PMP S-E scores with the intervention, the number of post-discharge visits to emergency departments (EDs) fell from 31 to 20 (
"Giving us hope":Parent and neonatal staff views and expectations of a planned family-centred discharge process (Train-to-Home)
Background Preparing families and preterm infants for discharge is relatively unstructured in many UK neonatal units (NNUs). Family-centred neonatal care and discharge planning is recommended but variable. Design and participants Qualitative interviews with 37 parents of infants in NNUs, 18 nursing staff and 5 neonatal consultants explored their views of discharge planning and perceptions of a planned family-centred discharge process (Train-to-Home). Train-to-Home facilitates communication between staff and parents throughout the neonatal stay, using a laminated train and parent booklets. Results Parents were overwhelmingly positive about Train-to-Home. They described being given hope, feeling in control, and having something visual to show their baby’s progress. They reported positive involvement of fathers and families, how predicted discharge dates helped them prepare for home, and ways staff engaged with Train-to-Home when communicating with them. Nursing staff reactions were mixed – some were uncertain about when to use it, but found the visual images powerful. Medical staff in all NNUs were positive about the intervention recognising that it helped in communicating better with parents. Conclusions Using a parent-centred approach to communication and informing parents about the needs and progress of their preterm infant in hospital is welcomed by parents and many staff. This approach meets the recommended prioritisation of family-centred care for such families. Predicted discharge dates helped parents prepare for home and the ways staff engaged with Train-to-Home when communicating with them helped them feel more confident, as well as having something visual to show their baby’s progress.</p
The principal neurons of the medial nucleus of the trapezoid body and NG2+ glial cells receive coordinated excitatory synaptic input
Glial cell processes are part of the synaptic structure and sense spillover of transmitter, while some glial cells can even receive direct synaptic input. Here, we report that a defined type of glial cell in the medial nucleus of the trapezoid body (MNTB) receives excitatory glutamatergic synaptic input from the calyx of Held (CoH). This giant glutamatergic terminal forms an axosomatic synapse with a single principal neuron located in the MNTB. The NG2 glia, as postsynaptic principal neurons, establish synapse-like structures with the CoH terminal. In contrast to the principal neurons, which are known to receive excitatory as well as inhibitory inputs, the NG2 glia receive mostly, if not exclusively, α-amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid receptor–mediated evoked and spontaneous synaptic input. Simultaneous recordings from neurons and NG2 glia indicate that they partially receive synchronized spontaneous input. This shows that an NG2+ glial cell and a postsynaptic neuron share presynaptic terminals
The Sociology of a Market Analysis Tool: How Industry Analysts Sort Vendors and Organize Markets
The information technology (IT) marketplace appears to be shaped by new kinds of specialist industry analysts that link technology supply and use through offering a commodified form of knowledge and advice. We focus on the work of one such organisation, the Gartner Group, and with how it produces a market analysis tool called the ‘Magic Quadrant’. Widely circulated amongst the IT community, the device compares and sorts vendors according to a number of more or less intangible properties (such as vendor ‘competence’ and ‘vision’). Given that potential adopters of IT systems are drawn to assess the reputation and likely behaviour of vendors, these tools play an important role in mediating choice during procurement. Our interest is in understanding how such objects are constructed as well as how they wield influence. We draw on the recent ‘performativity’ debate in Economic Sociology and the Sociology of Finance to show how Magic Quadrants are not simply describing but reshaping aspects of the IT arena. Importantly, in sketching this sociology of a market analysis tool, we also attend to the contested nature of the Magic Quadrant. Whilst Gartner attempt to establish this device as an ‘impartial’ and ‘legitimate’ arbiter of vendor performance, it is often viewed sceptically on the grounds that industry analysts are not always independent of the vendors they are assessing. Paradoxically these devices remain influential despite these sceptical assessments
Neuron–astrocyte interactions in the medial nucleus of the trapezoid body
The calyx of Held (CoH) synapse serves as a model system to analyze basic mechanisms of synaptic transmission. Astrocyte processes are part of the synaptic structure and contact both pre- and postsynaptic membranes. In the medial nucleus of the trapezoid body (MNTB), midline stimulation evoked a current response that was not mediated by glutamate receptors or glutamate uptake, despite the fact that astrocytes express functional receptors and transporters. However, astrocytes showed spontaneous Ca2+ responses and neuronal slow inward currents (nSICs) were recorded in the postsynaptic principal neurons (PPNs) of the MNTB. These currents were correlated with astrocytic Ca2+ activity because dialysis of astrocytes with BAPTA abolished nSICs. Moreover, the frequency of these currents was increased when Ca2+ responses in astrocytes were elicited. NMDA antagonists selectively blocked nSICs while D-serine degradation significantly reduced NMDA-mediated currents. In contrast to previous studies in the hippocampus, these NMDA-mediated currents were rarely synchronized
Preparing for home: A before-and-after study to investigate the effects of a neonatal discharge package aimed at increasing parental knowledge, understanding and confidence in caring for their preterm infant before and after discharge from hospital
BackgroundImproved survival and shorter length of stay (LOS) for preterm infants, together with poorly organised discharge planning in some neonatal units, leaves many parents ill prepared to take their babies home, with increased use of out-of-hours services. Despite the importance accorded to family-orientated neonatal care by the Department of Health and the National Institute for Health and Care Excellence, few neonatal units offer structured, family-orientated discharge planning.ObjectivesTo implement a parent-orientated discharge planning approach (Train-to-Home package) for preterm infants and investigate the effects on parental self-efficacy scores, infants’ LOS and change in costs associated with use of health-care resources in the 8 weeks after discharge, before and after implementation. DesignA before-and-after study, investigating the effects of Train-to-Home package during two 11-month periods, immediately before and after its implementation. SettingFour local neonatal units in South West England. ParticipantsInfants without major anomalies, born at 27–33 weeks’ gestation, admitted to the participating units, and their parents.Train-to-Home interventionA parent-orientated package that incorporated approaches to improving parents’ involvement in, and understanding of, their baby’s needs. It comprised a train graphic and supporting care pathways to facilitate parents’ understanding of their baby’s progress through the neonatal unit, combined with improved estimation, soon after hospital admission, of the baby’s likely discharge date
Nitric Oxide Signalling Augments Neuronal Voltage-Gated L-Type (CaV1) and P/Q-Type (CaV2.1) Channels in the Mouse Medial Nucleus of the Trapezoid Body
Nitric Oxide (NO) is a diffusible second messenger that modulates ion channels, intrinsic excitability and mediates synaptic plasticity. In light of its activity-dependent generation in the principal neurons of the medial nucleus of the trapezoid body (MNTB), we have investigated its potential modulatory effects on native voltage-gated calcium channels (CaV) within this nucleus. Whole-cell patch recordings were made from brain slices from P13–15 CBA mice. Slices were incubated with the inhibitor of neuronal nitric oxide synthase (nNOS) 7-nitroindazole (10 µM) and pharmacological blockers used to isolate Ca2+ current subtypes. Unpaired observations in the presence and absence of the NO-donors sodium nitroprusside (SNP, 100 µM) or Diethyl-ammonium-nonoate (DEA, 100 µM) were made to elucidate NO-dependent modulation of the expressed CaV subtypes. A differential effect of NO on the calcium channel subtypes was observed: CaV1 and CaV2.1 (L+R- and P/Q+R-type) conductances were potentiated, whereas N+R-type (CaV2.2) and R-type (CaV2.3) current amplitudes were unaffected. L+R-type currents increased from 0.36±0.04 nA to 0.64±0.11 nA and P/Q+R-type from 0.55±0.09 nA to 0.94±0.05 nA, thereby changing the balance and relative contribution of each subtype to the whole cell calcium current. In addition, N+R-type half-activation voltage was left shifted following NO exposure. NO-dependent modulation of P/Q+R and N+R-type, but not L+R-type, channels was removed by inhibition of soluble guanylyl cyclase (sGC) activity. This data demonstrates a differential effect of NO signalling on voltage-gated calcium entry, by distinct NO-dependent pathways
Reliability of Synaptic Transmission at the Synapses of Held In Vivo under Acoustic Stimulation
BACKGROUND:The giant synapses of Held play an important role in high-fidelity auditory processing and provide a model system for synaptic transmission at central synapses. Whether transmission of action potentials can fail at these synapses has been investigated in recent studies. At the endbulbs of Held in the anteroventral cochlear nucleus (AVCN) a consistent picture emerged, whereas at the calyx of Held in the medial nucleus of the trapezoid body (MNTB) results on the reliability of transmission remain inconsistent. In vivo this discrepancy could be due to the difficulty in identifying failures of transmission. METHODS/FINDINGS:We introduce a novel method for detecting unreliable transmission in vivo. Based on the temporal relationship between a cells' waveform and other potentials in the recordings, a statistical test is developed that provides a balanced decision between the presence and the absence of failures. Its performance is quantified using simulated voltage recordings and found to exhibit a high level of accuracy. The method was applied to extracellular recordings from the synapses of Held in vivo. At the calyces of Held failures of transmission were found only rarely. By contrast, at the endbulbs of Held in the AVCN failures were found under spontaneous, excited, and suppressed conditions. In accordance with previous studies, failures occurred most abundantly in the suppressed condition, suggesting a role for inhibition. CONCLUSIONS/SIGNIFICANCE:Under the investigated activity conditions/anesthesia, transmission seems to remain largely unimpeded in the MNTB, whereas in the AVCN the occurrence of failures is related to inhibition and could be the basis/result of computational mechanisms for temporal processing. More generally, our approach provides a formal tool for studying the reliability of transmission with high statistical accuracy under typical in vivo recording conditions
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