1,301 research outputs found
Effect of tart cherry juice on risk of gout attacks: protocol for a randomised controlled trial
Introduction: Gout is a painful form of inflammatory arthritis associated with several comorbidities, particularly cardiovascular disease. Cherries, which are rich in anti-inflammatory and antioxidative bioactive compounds, are proposed to be efficacious in preventing and treating gout, but recommendations to patients are conflicting. Cherry consumption has been demonstrated to lower serum urate levels and inflammation in several small studies. One observational case cross-over study reported that cherry consumption was associated with reduced risk of recurrent gout attacks. This preliminary evidence requires substantiation. The proposed randomised clinical trial aims to test the effect of consumption of tart cherry juice on risk of gout attacks. Methods and analysis: This 12-month, parallel, double-blind, randomised, placebo-controlled trial will recruit 120 individuals (aged 18–80 years) with a clinical diagnosis of gout who have self-reported a gout flare in the previous year. Participants will be randomly assigned to an intervention group, which will receive Montmorency tart cherry juice daily for a 12-month period, or a corresponding placebo group, which will receive a cherry-flavoured placebo drink. The primary study outcome is change in frequency of self-reported gout attacks. Secondary outcome measures include attack intensity, serum urate concentration, fractional excretion of uric acid, biomarkers of inflammation, blood lipids and other markers of cardiovascular risk. Other secondary outcome measures will be changes in physical activity and functional status. Statistical analysis will be conducted on an intention-to-treat basis. Ethics and dissemination: This study has been granted ethical approval by the National Research Ethics Service, Yorkshire and The Humber—Leeds West Research Ethics Committee (ref: 18/SW/0262). Results of the trial will be submitted for publication in a peer-reviewed journal. Trial registration number: NCT03621215
Reproductive strategy of a temperate canopy tree Tilia cordata Mill. (Malvaceae) is related to temperature during flowering and density of recent recruits
‘It’s like she’s talking about me’ – exploring the value and potential impact of a YouTube film presenting a qualitative evidence synthesis about chronic pain : an analysis of online comments
Background: There is very limited research exploring the value and impact of qualitative research in chronic pain despite the large volume of research.
Aims: To find out whether viewers comments in response to a YouTube film, portraying findings from a qualitative evidence synthesis about living with pain, revealed any potential value or impact to viewers.
Methodological approach: A thematic analysis of online comments to evaluate the impact of an arts-based health research film on people living with chronic pain.
Methods: We collected on-line data posted in response to the film ‘Struggling to be me’. We used themes from a large review of qualitative research as an a priori analytic framework. We used inductive thematic analysis to distil the essence of data that did not fit this framework.
Results: We developed two inductive themes that explored the value and potential impact of watching the film online: (1) It has given voice to our suffering, and (2) it makes me feel that I am not alone. Two subthemes added insight to the a priori framework: First, I have had enough of me added insight to the theme, My life is impoverished and confined; Second, I am treated like a criminal because I take opioids, added insight to the theme, Lost personal credibility.
Conclusions: Our findings indicate that watching the YouTube film has potential value and impact, giving voice to suffering and making people feel that they are not alone. There are specific ethical challenges relating to internet mediated research
Involvement of Glucocorticoids in the Reorganization of the Amphibian Immune System at Metamorphosis
In recent years, integrative animal biologists and behavioral scientists have begun to understand
the complex interactions between the immune system and the neuroendocrine system.
Amphibian metamorphosis offers a unique opportunity to study dramatic hormone-driven
changes in the immune system in a compressed time frame. In the South African clawed frog,
Xenopus laevis, the larval pattern of immunity is distinct from that of the adult, and metamorphosis
marks the transition from one pattern to the other. Climax of metamorphosis is
characterized by significant elevations in thyroid hormones, glucocorticoid hormones, and the
pituitary hormones, prolactin and growth hormone. Previously, we and others have shown that
elevated levels of unbound glucocorticoid hormones found at climax of metamorphosis are associated
with a natural decline in lymphocyte numbers, lymphocyte viability, and mitogen-induced
proliferation. Here we present evidence that the mechanism for loss of lymphocytes at
metamorphosis is glucocorticoid-induced apoptosis. Inhibition of lymphocyte function and
loss of lymphocytes in the thymus and spleen are reversible by in vitro or in vivo treatment
with the glucocorticoid receptor antagonist, RU486, whereas the mineralocorticoid receptor
antagonist, RU26752, is poorly effective. These observations support the hypothesis that loss
of larval lymphocytes and changes in lymphocyte function are due to elevated concentrations
of glucocorticoids that remove unnecessary lymphocytes to allow for development of immunological
tolerance to the new adult-specific antigens that appear as a result of metamorphosis
'A hard-won capability': the experiences of parents managing their babies' medicines after discharge from a neonatal unit.:'A hard-won capability'
IntroductionParents of babies who required neonatal care are responsible for managing their medicines after they are discharged home. There is wide variation in the information and amount of preparation given to parents prior to assuming this challenging task. The aim of the Parent co-Designed Drug Information for parents and Guardians Taking Neonates home (PADDINGToN) study was to explore parents' experiences of managing their babies' medicines post discharge from a neonatal unit and to use this information to develop suitable resources for future families.MethodsA qualitative participatory interpretative approach using a mixture of remote and face-to-face small group interviews or one-to-one interviews was used. Parents were recruited using social media advertisements and convenience sampling from five study sites (four neonatal units in England and one in Ireland). Parents from other neonatal units were invited to take part through social media advertisement. The interviews were audio-recorded and inductive reflexive thematic analysis was used to analyze the data.Results17 parents (14 mothers, 3 fathers) participated. One over-arching theme, 'A hard won capability', and four major interpretive themes were generated from the analysis of the data: Being in NICU and the prospect of going home: emotional and practical challenges; Living the reality of being at home: the uncertainty associated with giving medicines; Being at home: battling the system and a lack of support/knowledge; and Suggesting ways forward: parents' lived insights into improving information and resources.ConclusionDespite the challenges they faced, parents developed strategies for safely and reliably managing medicines administration and they assimilated knowledge, built their confidence and achieved a capability in medicines administration. Their experiences have been used to build a suite of medicines administration resources to support future parents.</jats:sec
A microarray analysis of gene expression in the free-living stages of the parasitic nematode Strongyloides ratti
BACKGROUND: The nematode Strongyloides ratti has two adult phases in its lifecycle: one obligate, female and parasitic and one facultative, dioecious and free-living. The molecular control of the development of this free-living generation remains to be elucidated. RESULTS: We have constructed an S. ratti cDNA microarray and used it to interrogate changes in gene expression during the free-living phase of the S. ratti life-cycle. We have found very extensive differences in gene expression between first-stage larvae (L1) passed in faeces and infective L3s preparing to infect hosts. In L1 stages there was comparatively greater expression of genes involved in growth. We have also compared gene expression in L2 stages destined to develop directly into infective L3s with those destined to develop indirectly into free-living adults. This revealed relatively small differences in gene expression. We find little evidence for the conservation of transcription profiles between S. ratti and S. stercoralis or C. elegans. CONCLUSION: This is the first multi-gene study of gene expression in S. ratti. This has shown that robust data can be generated, with consistent measures of expression within computationally determined clusters and contigs. We find inconsistencies between EST representation data and microarray hybridization data in the identification of genes with stage-specific expression and highly expressed genes. Many of the genes whose expression is significantly different between L1 and iL3s stages are unknown beyond alignments to predicted genes. This highlights the forthcoming challenge in actually determining the role of these genes in the life of S. ratti
A content analysis of online videos containing dietary recommendations for gout and their alignment with evidence-based dietary guidelines
Abstract
Objective:
To assess the alignment of YouTube® videos providing dietary recommendations for gout with evidence-based guidelines targeted at the United Kingdom (UK) population and to establish their quality.
Design:
A content analysis of YouTube® videos providing dietary recommendations for gout was undertaken. Videos were categorised by video source. Each video’s dietary recommendations for gout were compared with three evidence-based guidelines for gout, producing a compliance score. Presence of non-guideline advice was assessed. Understandability and actionability were evaluated using the Patient Education Material Assessment Tool for Audio-Visual Materials. Reliability was assessed using an adapted-DISCERN tool and educational quality using the Global Quality Score Five-Point Scale. Differences between video source and continuous variables were assessed using one-way Kruskal–Wallis H tests. For categorical variables, associations were investigated using Fisher–Freeman–Halton tests.
Setting:
Online, May–June 2020.
Participants:
One-hundred thirty-one videos.
Results:
Alignment of videos with evidence-based guidelines was poor (median compliance score 27 % (interquartile range 17–37 %)). Additionally, 57 % of videos contained non-guideline advice. The health professional source group had the fewest videos containing non-guideline advice, but this was only significantly lower than the naturopath group (31 % v. 81 %, P = 0·009). Almost 70 % of videos were considered poorly actionable and 50 % poorly understandable. Most videos were rated poor for reliability (79 %) and poor to generally poor for educational quality (49 %).
Conclusions:
YouTube® videos providing dietary recommendations for gout frequently fail to conform to evidence-based guidelines, and their educational quality, reliability, understandability and actionability are often poor. More high-quality, comprehensive, evidence-based YouTube® videos are required for UK gout patients
- …