91 research outputs found

    Implementation and delivery of group consultations for young people with diabetes in socioeconomically deprived, ethnically diverse settings

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    BACKGROUND: Young people with diabetes experience poor clinical and psychosocial outcomes, and consider the health service ill-equipped in meeting their needs. Improvements, including alternative consulting approaches, are required to improve care quality and patient engagement. We examined how group-based, outpatient diabetes consultations might be delivered to support young people (16-25 years old) in socio-economically deprived, ethnically diverse settings. METHODS: This multi-method, comparative study recruited a total of 135 young people with diabetes across two implementation and two comparison sites (2017-2019). Informed by a 'researcher-in-residence' approach and complexity theory, we used a combination of methods: (a) 31 qualitative interviews with young people and staff and ethnographic observation in group and individual clinics, (b) quantitative analysis of sociodemographic, clinical, service use, and patient enablement data, and (c) micro-costing analysis. RESULTS: Implementation sites delivered 29 group consultations in total. Overall mean attendance per session was low, but a core group of young people attended repeatedly. They reported feeling better understood and supported, gaining new learning from peers and clinicians, and being better prepared to normalise diabetes self-care. Yet, there were also instances where peer comparison proved difficult to manage. Group consultations challenged deeply embedded ways of thinking about care provision and required staff to work flexibly to achieve local tailoring, sustain continuity, and safely manage complex interdependencies with other care processes. Set-up and delivery were time-consuming and required in-depth clinical and relational knowledge of patients. Facilitation by an experienced youth worker was instrumental. There was indication that economic value could derive from preventing at least one unscheduled consultation annually. CONCLUSIONS: Group consulting can provide added value when tailored to meet local needs rather than following standardised approaches. This study illustrates the importance of adaptive capability and self-organisation when integrating new models of care, with young people as active partners in shaping service provision. TRIAL REGISTRATION: ISRCTN reference 27989430

    Group clinics for young adults living with diabetes in an ethnically diverse, socioeconomically deprived population: mixed-methods evaluation

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    Background Our research was based on the expressed need to evaluate the potential for group clinics to enhance care within the NHS for people with long-term conditions. Objectives We aimed to explore the scope, feasibility, impact and potential scalability of group clinics for young adults with diabetes who have poor experiences of care and clinical outcomes. We applied a participatory approach to the entire research process, where appropriate. Setting Four NHS trusts delivering diabetes care to young adults in ethnically diverse and socioeconomically deprived communities. Participants We involved 135 young adults as participants in our research (73 at two intervention sites and 62 at two control sites). Methods A realist review synthesised existing evidence for group clinics to understand ‘what works, for whom, under what circumstances’. Using the realist review findings and a scoping exercise, we used co-design to develop a model of group clinic-based care, which we then implemented and evaluated using primarily qualitative methods, with quantitative and costs analyses to inform future evaluations. Results Young adults reported positive experiences from the group clinics. However, across the group clinics delivered, only one-third (on average) of those invited to specific clinics attended, despite substantial efforts to encourage attendance, and only 37 out of 73 (51%) participants attended any group clinics. Social learning helped the acquisition of new knowledge and normalisation of experiences. Group clinics met previously unreached emotional needs, and the relationships that formed between young adults, and between them and the staff facilitating the clinics, were key. Clinical staff delivered the clinics using a facilitatory approach, and a youth worker helped to ensure that the care model was developmentally appropriate. Existing organisational structures presented substantial challenges to the delivery of group clinics, and there was considerable hidden work required by the staff delivering them. Group clinics may augment one-to-one care but do not necessarily replace it. The average cost of each group clinic, per participant, was £127–58. Limitations Engagement in co-design and the research process and participation in the group clinics was challenging, and limited our quantitative data analysis. These limitations had implications for the fidelity of the intervention and generalisability of our findings. During the research, we established that group clinics would not replace existing care, and that further work is required to understand the theoretical base of ‘blended’ models of care, and the potential of digital offers, before a definitive evaluation (a cluster-randomised trial) can be designed. Conclusions Our findings show that young adults with diabetes, including those in deprived and ethnically diverse settings, have positive experiences of group-based care, and it may augment existing one-to-one care. However, engagement with group-based care is challenging despite the participatory design. Future work Future research is needed to develop the group clinic model prior to definitive evaluation. Study registration This study is registered as CRD42017058726 and ISRCTN83599025. Funding This project was funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme and will be published in full in Health and Social Care Delivery Research; Vol. 10, No. 25. See the NIHR Journals Library website for further project information

    Decreased Prevalence of Lymphatic Filariasis among Diabetic Subjects Associated with a Diminished Pro-Inflammatory Cytokine Response (CURES 83)

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    Epidemiological studies have shown an inverse correlation between the incidence of lymphatic filariasis (LF) and the incidence of allergies and autoimmunity. However, the interrelationship between LF and type-2 diabetes is not known and hence, a cross sectional study to assess the baseline prevalence and the correlates of sero-positivity of LF among diabetic subjects was carried out (n = 1416) as part of the CURES study. There was a significant decrease in the prevalence of LF among diabetic subjects (both newly diagnosed [5.7%] and those under treatment [4.3%]) compared to pre-diabetic subjects [9.1%] (p = 0.0095) and non-diabetic subjects [10.4%] (p = 0.0463). A significant decrease in filarial antigen load (p = 0.04) was also seen among diabetic subjects. Serum cytokine levels of the pro-inflammatory cytokines—IL-6 and GM-CSF—were significantly lower in diabetic subjects who were LF positive, compared to those who were LF negative. There were, however, no significant differences in the levels of anti-inflammatory cytokines—IL-10, IL-13 and TGF-β—between the two groups. Although a direct causal link has yet to be shown, there appears to be a striking inverse relationship between the prevalence of LF and diabetes, which is reflected by a diminished pro-inflammatory cytokine response in Asian Indians with diabetes and concomitant LF

    Spermatogonial stem cell sensitivity to capsaicin: An in vitro study

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    <p>Abstract</p> <p>Background</p> <p>Conflicting reports have been published on the sensitivity of spermatogenesis to capsaicin (CAP), the pungent ingredient of hot chili peppers. Here, the effect of CAP on germ cell survival was investigated by using two testis germ cell lines as a model. As CAP is a potent agonist of the transient receptor potential vanilloid receptor 1 (TRPV1) and no information was available of its expression in germ cells, we also studied the presence of TRPV1 in the cultured cells and in germ cells in situ.</p> <p>Methods</p> <p>The rat spermatogonial stem cell lines Gc-5spg and Gc-6spg were used to study the effects of different concentrations of CAP during 24 and 48 h. The response to CAP was first monitored by phase-contrast microscopy. As germ cells appear to undergo apoptosis in the presence of CAP, the activation of caspase 3 was studied using an anti activated caspase 3 antibody or by quantifying the amount of cells with DNA fragmentation using flow cytometry. Immunolocalization was done with an anti-TRPV1 antibody either with the use of confocal microscopy to follow live cell labeling (germ cells) or on Bouin fixed paraffin embedded testicular tissues. The expression of TRPV1 by the cell lines and germ cells was confirmed by Western blots.</p> <p>Results</p> <p>Initial morphological observations indicated that CAP at concentrations ranging from 150 uM to 250 uM and after 24 and 48 h of exposure, had deleterious apoptotic-like effects on both cell lines: A large population of the CAP treated cell cultures showed signs of DNA fragmentation and caspase 3 activation. Quantification of the effect demonstrated a significant effect of CAP with doses of 150 uM in the Gc-5spg cell line and 200 uM in the Gc-6spg cell line, after 24 h of exposure. The effect was dose and time dependent in both cell lines. TRPV1, the receptor for CAP, was found to be expressed by the spermatogonial stem cells in vitro and also by premeiotic germ cells in situ.</p> <p>Conclusion</p> <p>CAP adversely affects spermatogonial survival in vitro by inducing apoptosis to those cells and TRPV-1, a CAP receptor, may be involved in this effect as this receptor is expressed by mitotic germ cells.</p

    Energy dissipation via acoustic emission in ductile crack initiation

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    The final publication is available at Springer via http://dx.doi.org/10.1007/s10704-016-0096-8.This article presents a modeling approach to estimate the energy release due to ductile crack initiation in conjunction to the energy dissipation associated with the formation and propagation of transient stress waves typically referred to as acoustic emission. To achieve this goal, a ductile fracture problem is investigated computationally using the finite element method based on a compact tension geometry under Mode I loading conditions. To quantify the energy dissipation associated with acoustic emission, a crack increment is produced given a pre-determined notch size in a 3D cohesive-based extended finite element model. The computational modeling methodology consists of defining a damage initiation state from static simulations and linking such state to a dynamic formulation used to evaluate wave propagation and related energy redistribution effects. The model relies on a custom traction separation law constructed using full field deformation measurements obtained experimentally using the digital image correlation method. The amount of energy release due to the investigated first crack increment is evaluated through three different approaches both for verification purposes and to produce an estimate of the portion of the energy that radiates away from the crack source in the form of transient waves. The results presented herein propose an upper bound for the energy dissipation associated to acoustic emission, which could assist the interpretation and implementation of relevant nondestructive evaluation methods and the further enrichment of the understanding of effects associated with fracture

    Deletion of Wntless in myeloid cells exacerbates liver fibrosis and the ductular reaction in chronic liver injury

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    Background: Macrophages play critical roles in liver regeneration, fibrosis development and resolution. They are among the first responders to liver injury and are implicated in orchestrating the fibrogenic response via multiple mechanisms. Macrophages are also intimately associated with the activated hepatic progenitor cell (HPC) niche or ductular reaction that develops in parallel with fibrosis. Among the many macrophage-derived mediators implicated in liver disease progression, a key role for macrophage-derived Wnt proteins in driving pro-regenerative HPC activation towards a hepatocellular fate has been suggested. Wnt proteins, in general, however, have been associated with both pro-and anti-fibrogenic activities in the liver and other organs. We investigated the role of macrophage-derived Wnt proteins in fibrogenesis and HPC activation in murine models of chronic liver disease by conditionally deleting Wntless expression, which encodes a chaperone essential for Wnt protein secretion, in LysM-Cre-expressing myeloid cells (LysM-Wls mice)

    The Effect Of Solid Chemical Composition On Coal Char Reactivity In A Carbon-Dioxide Atmosphere.

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    R e a c t i v i t i e s o f c o a l c h a rs w ere m easured i n COg a t th e tem peratu r e s 800°C-1100°C. The r e a c t i v i t i e s o f th e c h a rs w ere m easured in a th e rm o g ra v im e tric a n a ly z e r up to com plete c o n v e rsio n f o r m ost o f th e sam p les. I n o rd e r to in s u r e a k i n e t i c re g im e , p a r t i c l e s iz e and bed e f f e c t s w ere s tu d ie d , and a p p r o p r ia te ly m a in ta in e d t h e r e a f t e r . The p h y s ic a l c h a r a c t e r i s t i c s o f th e c h ars w ere s tu d ie d by e le c tr o n m icro sco p y . X -ray d i f f r a c t i o n and BET s u r f a c e a r e a te c h n iq u e s . The ch em ical p r o p e r tie s o f th e c h a rs w ere o b ta in e d by ato m ic a b s o rp tio n s p e c tro p h o to m e try , in f r a r e d s p e c tro s c o p y , and s ta n d a rd ASTM te c h ­ n iq u e s

    Recovery of Energy and Chrome from Leather Waste

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    The energy requirements for the leather tanning industry are considerable and depend primarily on nonrenewable fuels such as oil and natural gas. However, some 50 percent, approximately 1.85 x 1012 BTU/year, of the energy needed to support the U.S. tanning industry may be met through an active conservation program. This program would be directed at the recovery of the energy available in the leather waste; the raw and finished tanned leather trimmings and cuttings resulting from tannery operations. At the present time, leather waste is being disposed of in landfills. This represents an environmental problem and a significant loss of potential energy and of valuable chromium compounds that can be utilized in the tanning process. Recovery of energy and chrome compounds can result in a saving of some 25 million dollars per year for the industry. The paper presents a pyrolysis method for handling leather tanning wastes to recover energy and chromium compounds for use in the tanning process. Energy and cost savings are estimated
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